A bra
By designing each support piece in the bra with an arc shape extending from the center of the neck towards the bowl and with the upper edge concave, and by setting progressively increasing lifting force, the problem of traditional bras being unable to adjust the lifting force is solved, achieving a better breast shape shaping effect and wearing comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BIYUE (BEIJING) TECH CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional bras' support structure cannot adjust the lifting force according to the physiological curve of the breast, resulting in poor ability to modify the shape of the breast.
Design a bra structure in which each support piece extends along the center gore towards the cup side, with a concave upper edge and a height difference. When multiple support pieces are stacked, they provide progressively increasing lifting force. The distribution of lifting force is optimized by combining the different elasticities and fixing methods of the support pieces and the cup.
It enhances the bra's ability to shape the breasts, conforms to the natural shape and weight distribution of the breasts, and increases the comfort and aesthetics of wearing it.
Smart Images

Figure CN224483089U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of underwear technology, and more particularly to a bra. Background Technology
[0002] As an essential garment in women's daily lives, the primary function of a bra is to support and shape the breasts. Some bras feature a support structure to specifically emphasize the lifting and shaping effect on the breasts, thereby achieving the goal of modifying the breast shape.
[0003] However, traditional breast support structures typically provide even lifting force to the breasts, failing to adjust the lifting force according to the physiological curves of the breasts, resulting in bras that are not very effective at shaping the breasts. Utility Model Content
[0004] This application provides a bra designed to enhance the bra's ability to shape the breasts.
[0005] The bra provided in this application includes a cup and at least two support pieces stacked on top of the cup; wherein:
[0006] Each of the breast support pieces extends along the center of the bra towards the bowl side, and the upper edge of each breast support piece is concave arc-shaped. Each breast support piece is used to lift the breasts upward and gather the breasts inward when wearing the bra.
[0007] Each of the aforementioned chest support pieces has a height difference at its upper edge.
[0008] In the above technical solution, each breast support piece is stacked with the cup, and each breast support piece has the function of lifting and gathering the breasts. When two or more breast support pieces are stacked, the lifting force of the two breast support pieces on the breasts can be superimposed. By setting the upper edge of each breast support piece to have a height difference, when the breast support pieces are stacked, the breast support pieces can provide a gradually increasing lifting force to the breasts from top to bottom. Such a distribution of lifting force difference is more in line with the natural shape and gravity distribution of the breasts, thereby improving the bra's ability to modify the breast shape.
[0009] In one possible implementation, for any of the breast support pieces, a portion of the lower edge of the breast support piece overlaps with and is fixedly connected to the lower bra cup of the bra, and the edge of the breast support piece near the center gore is fixedly connected to the center gore.
[0010] The upper edge of the breast support piece can float relative to the cup, and the curvature of the upper edge of the breast support piece decreases when the cup is stretched.
[0011] In one possible implementation, the lower edge of the portion of any of the chest support pieces near the bowl side overlaps and is fixedly connected to the lower strap bowl ring.
[0012] In one possible implementation, any of the chest support pieces is fixedly connected to the heart and the lower strap ring by stitching or adhesive.
[0013] In one possible implementation, all of the chest support pieces are located on the side of the cup away from the skin;
[0014] Along the direction away from the skin, the upper edge of the outer layer of the chest support piece is located below the upper edge of the inner layer of the chest support piece.
[0015] In one possible implementation, at least one of the breast support pieces is located on the side of the bowl cup facing the skin;
[0016] Along the direction away from the skin, the upper edge of the outer layer of the chest support piece is located above the upper edge of the inner layer of the chest support piece.
[0017] In one possible implementation, the elasticity of any of the breast support pieces is less than the elasticity of the bowl cup.
[0018] In one possible implementation, the bra includes a first support piece and a second support piece; wherein:
[0019] The upper edge of the first chest support piece extends from the heart-shaped part to the bowl side, and the endpoint where the upper edge of the first chest support piece intersects with the bowl side is not lower than the intersection of the bowl side and the lower binding ring.
[0020] The upper edge of the second chest support piece extends from the heart-shaped part to the portion of the lower strap ring near the bowl side, and the endpoint where the upper edge of the second chest support piece intersects with the lower strap ring is lower than the intersection point of the bowl side and the lower strap ring.
[0021] In one possible implementation, the endpoint of the first chest support piece that intersects with the bowl side is higher than the intersection of the bowl side and the lower strap ring.
[0022] In one possible implementation, the edge of the first chest support piece that is fixedly connected to the heart-shaped part is a first side edge, and the edge of the second chest support piece that is fixedly connected to the heart-shaped part is a second side edge.
[0023] The lower endpoint of the first side edge coincides with the lower endpoint of the second side edge, and the upper endpoint of the first side edge is located above the upper endpoint of the second side edge. Attached Figure Description
[0024] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. These drawings are incorporated in and constitute a part of this specification. They illustrate embodiments conforming to this disclosure and, together with the specification, serve to explain the technical solutions of this disclosure. It should be understood that the following drawings only show some embodiments of this disclosure and should not be considered as limiting the scope. Those skilled in the art can obtain other related drawings based on these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the overall bra in an embodiment of this application. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.
[0027] It should be noted that, unless otherwise defined, the technical or scientific terms used in one or more embodiments of this specification should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar words used in one or more embodiments of this specification do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0028] To facilitate understanding of the bra provided in the embodiments of this application, its application scenario is first explained: The bra provided in the embodiments of this application can be used as women's underwear and has the function of modifying the shape of the breast.
[0029] As an essential garment in women's daily lives, the primary function of a bra is to support and shape the breasts. Some bras feature a support structure to specifically emphasize the lifting and shaping effect on the breasts, thereby achieving the goal of modifying the breast shape.
[0030] However, traditional breast support structures typically provide even lifting force to the breasts, failing to adjust the lifting force according to the physiological curves of the breasts, resulting in poor breast shaping ability. Specifically, traditional breast support structures usually start lifting the breasts from the lower edge or below it. Since the physiological curve of the breasts gradually rises from the lower edge, if the breast support structure provides even lifting force, it is easy for the lower edge of the breast to be too loose, resulting in insufficient lifting force there, and for the area below the nipple to be too lifted, resulting in compression of the breasts, thus affecting the bra's ability to shape the breasts.
[0031] Based on this, this application provides a bra designed to enhance its ability to modify the shape of the breasts. The bra provided in this application is described in detail below with reference to the accompanying drawings. First, it should be noted that bras typically include a symmetrical structure on both sides; therefore, this embodiment only uses one side of the bra as an example. The structure of the other side of the bra can be referenced to this single-sided structure and will not be described further here. Additionally, for ease of description, this embodiment uses the height and width directions of the human body as reference directions. Descriptions involving high, low, upper, and lower edges are all based on the height direction of the human body.
[0032] refer to Figure 1 , Figure 1 This is a schematic diagram of a bra provided for an embodiment of this application. Figure 1 As shown, the bra provided in this embodiment includes a cup 1 and at least two support pieces 2 stacked on top of the cup 1. The cup 1 is used to completely cover the breast and provide overall support. Each support piece 2 is used to provide additional support to the breast to enhance the bra's support effect.
[0033] Taking a single breast support piece 2 as an example, the breast support piece 2 is stacked with the cup 1, specifically stacked at the lower part of the cup 1. Each breast support piece 2 extends along the direction from the center gore 3 of the bra towards the cup side 4, and the overall shape gradually extends from the center gore 3 towards the side of the body while having an upward tilting tendency. The upper edge of each breast support piece 2 is a concave arc shape, and the center of this arc shape can be roughly pointed towards the upper inner side of the breast. When wearing the bra, the breast support piece 2 is subjected to a pulling force roughly in the direction from the center gore 3 towards the cup side 4, so the concave arc shape of the breast support piece 2 tends to decrease in curvature, thereby generating a force on the breast roughly in the direction of the arc center.
[0034] Taking one breast as a reference, this force generally extends from the lower outer side of the breast along the width of the body towards the upper inner side. This force can be considered as consisting of two components: a lifting force from the lower part of the breast to the upper part, and a converging force from the outer side of the breast to the inner side. The lifting force lifts the breast upwards and can also help to gather some of the fat under the breast into the cup 1, thus preventing sagging to some extent. The converging force brings the breast together from both sides towards the center, and can also gather some underarm fat or accessory breast tissue into the cup 1. The combined effect of the lifting and converging forces makes the breasts more upright, achieving the goal of shaping the breasts.
[0035] As can be seen from the above, a single breast support piece 2 can provide a lifting effect on the breasts. When two or more breast support pieces 2 are stacked, the lifting effect of the two or more breast support pieces 2 can be superimposed. That is, if two layers of breast support pieces 2 are stacked in a certain area, the lifting force that the two layers of breast support pieces 2 can apply to the breasts in that area should be greater than the lifting force that any one breast support piece 2 can provide.
[0036] Continue to refer to Figure 1 When multiple support panels 2 are stacked, the upper edges of each support panel 2 have a height difference. Optionally, the lower edges of each support panel 2 can overlap. This way, when the support panels 2 are stacked, they provide progressively increasing lift to the breasts from top to bottom along the body's height. In other words, the stacked support panels 2 provide the greatest lift at the lower part of the breast, and then gradually decrease the lift as the breasts rise. Compared to traditional bras, this distribution of lift better conforms to the natural shape of the breasts gradually rising from bottom to top, and also better reflects the distribution of gravity where the weight is greater closer to the lower part of the breast, thus enhancing the bra's ability to shape the breasts.
[0037] As an optional implementation, in this embodiment, the elasticity of any of the breast support pieces 2 is less than that of the cup 1. Specifically, the breast support piece 2 can be made of a non-elastic, slightly elastic, or elastic fabric. By setting the elasticity of the breast support piece 2 to be less than that of the cup 1, the breast support piece 2 is less prone to deformation when stretched compared to the cup. Similarly, its recovery force after deformation is also greater, thereby providing more effective support for the breasts and enhancing the bra's breast shaping effect.
[0038] As an optional implementation, when specifically setting the breast support piece 2, for any breast support piece 2, a portion of the lower edge of the breast support piece 2 can be overlapped and fixedly connected with the lower bra cup 5 of the bra, and the edge of the breast support piece 2 near the center gore 3 can be fixedly connected with the center gore 3; and the upper edge of the breast support piece 2 can float relative to the cup 1, so that when the cup 1 is stretched, the curvature of the upper edge of the breast support piece 2 is reduced.
[0039] Specifically, a chest support piece 2 may have three edges: an upper edge, an edge near the heart 3, and a lower edge. The lower edge may extend roughly along the path of the lower strap ring 5. Of course, in some possible embodiments, part of the lower edge of the chest support piece 2 may extend along the lower strap ring 5 to the side of the bowl 4 and continue upward along the side of the bowl 4 for a certain distance.
[0040] By fixing the edge near the center gore 3 to the center gore 3 and aligning and fixing part of the lower edge to the lower band 5 of the bra, the breast support piece 2 can be fixed to the bra as a whole. When wearing the bra, the cup side 4 is stretched relative to the center gore 3 along the width of the body, and the cup side 4 can pull the lower band 5. The lower band 5 and the center gore 3 pull the breast support piece 2 to both sides, so that the upper edge of the concave arc of the breast support piece 2 tends to be flattened, thereby generating a lifting force on the breasts.
[0041] By setting the fabric within each edge of the breast support piece 2 to be not fixedly connected to the cup 1, the upper edge of the breast support piece 2 can float relative to the cup 1, and only the lower edge of the breast support piece 2 is fixedly connected to the lower binding ring 5. When the breast support piece 2 is stretched, the breast support piece 2 is more likely to deform, thereby effectively lifting the breasts and improving the shaping effect of the bra on the breasts.
[0042] As an optional implementation, when specifically fixing the lower edge of the breast support piece 2 to the lower binding ring 5, the lower edge of any portion of the breast support piece 2 near the bowl side 4 is overlapped and fixedly connected to the lower binding ring 5. When the breast support structure applies force to the breast, the overall direction of force is roughly from the lower outer side of the breast to the upper inner side of the breast. At this time, the side of the breast support piece 2 near the bowl side 4 applies greater force to the breast. By setting the lower edge of the breast support piece 2 near the bowl side 4 to overlap and be fixedly connected to the lower binding ring 5, the risk of the breast support piece 2 shifting due to force can be reduced, and the positional stability of the breast support piece 2 can be improved.
[0043] It is worth noting that in some possible implementations, the lower edge of the breast support piece 2 near the bowl side 4 may extend to overlap with the bowl side 4. In this case, the lower edge of the breast support piece 2 overlapping with the bowl side 4 can also be fixedly connected to the bowl side 4, thereby ensuring that the position of the breast support piece 2 relative to the bowl side 4 and the lower binding ring 5 is relatively stable, reducing the risk of the breast support piece 2 rolling up or piling up, which would cause discomfort when wearing it.
[0044] As an optional implementation, when fixing the chest support piece 2 to the heart-shaped part 3 and the lower strap ring 5, any one of the chest support pieces 2 can be fixedly connected to the heart-shaped part 3 and the lower strap ring 5 by sewing or gluing. Specifically, for any one of the chest support pieces 2, when the edge of the chest support piece 2 near the heart-shaped part 3 is fixedly connected to the heart-shaped part 3, it can be fixedly connected to the heart-shaped part 3 by sewing or gluing; the lower edge of the chest support piece 2 near the cup side 4 can also be fixedly connected to the lower strap ring 5 by sewing or gluing.
[0045] In some possible implementations, the support piece 2 is fixedly connected to the center gore 3 and the lower strap ring 5 by sewing, which can make the support piece 2 stably fixed to the center gore 3 or the lower strap ring 5, thereby improving the overall structural stability of the bra.
[0046] In some possible implementations, the chest support piece 2 is fixedly connected to the center gore 3 and the lower strap ring 5 by adhesive bonding. Using adhesive bonding reduces the risk of discomfort caused by protruding sutures.
[0047] As an optional implementation, when two or more breast support pieces 2 are stacked, all breast support pieces 2 are located on the side of the cup 1 away from the skin, and along the direction away from the skin, the upper edge of the outer breast support piece 2 is located below the upper edge of the inner breast support piece 2. That is, when all breast support pieces are located on the side of the cup 1 away from the skin, for multiple breast support pieces 2 with different areas, the larger breast support piece 2 is located on the side of the smaller breast support piece 2 closer to the skin.
[0048] By arranging two or more breast support pieces 2 in the above-mentioned positional relationship, when wearing the bra, the smaller breast support piece 2 located on the outer layer needs to transmit the lifting force through the larger breast support piece 2 located on the inner layer. At this time, there is a change in the lifting force at the upper edge of the smaller breast support piece 2. The larger breast support piece 2 located on the inner layer can play a transitional role in the change in the lifting force at the upper edge of the smaller breast support piece 2, thereby improving the wearing comfort of the bra.
[0049] Of course, in other possible implementations, the multi-layered chest support plate 2 can also be arranged in other regular patterns.
[0050] As an optional implementation, when two or more breast support pieces 2 are specifically provided, at least one breast support piece 2 is located on the side of the cup 1 facing the skin, and along the direction away from the skin, the upper edge of the outer breast support piece is located above the upper edge of the inner breast support piece.
[0051] At least one breast support piece 2 is located on the skin-facing side of the cup 1. Specifically, this means that some breast support pieces 2 can be placed on the skin-closed side of the cup 1, while others can be placed on the skin-away side of the cup 1; alternatively, all breast support pieces 2 can be placed on the skin-facing side of the cup 1. Along the skin-away direction, the upper edge of the outer breast support piece 2 is located above the upper edge of the inner breast support piece 2, meaning that along the skin-away direction, the larger breast support piece 2 is located on the skin-away side of the smaller breast support piece 2.
[0052] This design allows the smallest support piece 2 to support the breasts on the inner side closest to the skin. While the smallest support piece 2 applies pressure to the breasts, it will create pressure marks. The larger support piece 2 is located on the outer side of the smaller support piece 2, and the larger area of support can make the pressure marks smoother, thereby improving the comfort of wearing the bra and making the overall wearing effect of the bra more beautiful.
[0053] As an optional implementation, when specifically setting the breast support piece 2, the upper edge of any breast support piece 2 does not exceed the nipple. It should be understood that the upper edge of the breast support piece 2 is a concave arc shape, and the upper edge of the breast support piece 2 does not exceed the nipple. In some specific examples, all upper edges of the breast support piece 2 are below the nipple. Of course, in other examples, only the upper edge of the breast support piece 2, as it extends along the arc, may bypass the nipple through its concave shape. However, in the area near the bowl side 4, the upper edge of the breast support piece 2 may still be above the nipple in absolute height. It should also be understood that the nipple here refers to the part of the bra corresponding to the human nipple. Due to differences in human physiological structure, the nipple of the bra cannot absolutely correspond to the nipple of all individuals; this is only an example based on a common physiological structure.
[0054] As an optional implementation method, such as Figure 1 The bra shown has two support pieces 2. For ease of description, these two support pieces 2 are named the first support piece 21 and the second support piece 22. The upper edge of the first support piece 21 extends from the center gore 3 to the cup side 4, and the endpoint where the upper edge of the first support piece 21 intersects with the cup side 4 is not lower than the intersection of the cup side 4 and the lower binding cup ring 5. The upper edge of the second support piece 22 extends from the center gore 3 to the portion of the lower binding cup ring 5 near the cup side 4, and the endpoint where the upper edge of the second support piece 22 intersects with the lower binding cup ring 5 is lower than the intersection of the cup side 4 and the lower binding cup ring 5. As an example, such as... Figure 1 As shown, the intersection of the bowl side 4 and the lower binding bowl ring 5 is denoted as B, the endpoint where the upper edge of the first chest support piece 21 intersects with the lower binding bowl ring 5 is denoted as b1, and the endpoint where the upper edge of the second chest support piece 22 intersects with the lower binding bowl ring 5 is denoted as b2.
[0055] Here, the endpoint where the upper edge of the first chest support piece 21 intersects with the bowl side 4 is not lower than the intersection of the bowl side 4 and the lower binding bowl ring 5. This means that the endpoint where the upper edge of the first chest support piece 21 intersects with the bowl side 4 can coincide with the intersection of the bowl side 4 and the lower binding bowl ring 5, or it can be higher than the intersection of the bowl side 4 and the lower binding bowl ring 5.
[0056] Here, the upper edge of the first breast support piece 21 is fixed at a higher position on the bowl side 4. The first breast support piece 21 can provide more gathering force to the breasts, which is conducive to improving the bra's ability to gather the fat on the outer side of the breasts, thereby improving the bra's gathering effect.
[0057] As an optional implementation, the endpoint where the first support piece 21 intersects with the cup side 4 is higher than the intersection point of the cup side 4 and the lower binding cup ring 5. With this arrangement, for the two support pieces 2, one support piece 2 is fixed to the cup side 4 on one side, and the other support piece 2 is fixed to the lower binding cup ring 5. This ensures that, while meeting the height difference at the upper edges, the cup side 4 and the lower binding cup ring 5 respectively bear the lifting force of the first support piece 21 and the second support piece 22. This allows the reaction force of the lifting force to be distributed as evenly as possible between the lower binding cup ring 5 and the cup side 4, reducing discomfort caused by stress concentration.
[0058] As an optional implementation, on the side of the first breast support piece 21 and the second breast support piece 22 near the center gore 3, the edge of the first breast support piece 21 that is fixedly connected to the center gore 3 is the first side edge, and the edge of the second breast support piece 22 that is fixedly connected to the center gore 3 is the second side edge. The lower endpoint of the first side edge coincides with the lower endpoint of the second side edge, and the upper endpoint of the first side edge is located above the upper endpoint of the second side edge. This arrangement, on the one hand, makes the difference in lifting force between the first breast support piece 21 and the second breast support piece 22 clearer, and the lifting force layers more distinct, thereby improving the shaping effect on the breasts; on the other hand, when both the first breast support piece 21 and the second breast support piece 22 are located on the outer layer of the bra, the upper edges of the first breast support piece 21 and the second breast support piece 22 do not intersect, presenting a smooth curve, which further improves the appearance of the bra.
[0059] It is worth noting that, Figure 1 The image only shows the case where both the first chest support piece 21 and the second chest support piece 22 are located on the side of the cup 1 away from the skin. In other possible embodiments, the first chest support piece 21 and the second chest support piece 22 can also be located on the side of the cup 1 closer to the skin, or the cup 1 can be located between the first chest support piece 21 and the second chest support piece 22.
[0060] One or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the scope of protection of this disclosure.
[0061] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A bra, characterized in that, include: A bowl / cup, and at least two breast support pieces stacked on top of the bowl / cup; wherein: Each of the breast support pieces extends along the center of the bra towards the bowl side, and the upper edge of each breast support piece is concave arc-shaped. Each breast support piece is used to lift the breasts upward and gather the breasts inward when wearing the bra. Each of the aforementioned chest support pieces has a height difference at its upper edge.
2. The bra according to claim 1, characterized in that, For any of the aforementioned breast support pieces, a portion of the lower edge of the breast support piece overlaps with and is fixedly connected to the lower bra cup of the bra, and the edge of the breast support piece near the center gore is fixedly connected to the center gore. The upper edge of the breast support piece can float relative to the cup, and the curvature of the upper edge of the breast support piece decreases when the cup is stretched.
3. The bra according to claim 2, characterized in that, The lower edge of the portion of any of the chest support pieces near the bowl side overlaps and is fixedly connected to the lower strap bowl ring.
4. The bra according to claim 3, characterized in that, Each of the aforementioned chest support pieces is fixedly connected to the chicken heart and the lower strap ring by means of sewing or bonding.
5. The bra according to claim 1, characterized in that, All of the aforementioned chest support pieces are located on the side of the bowl cup that is away from the skin; Along the direction away from the skin, the upper edge of the outer layer of the chest support piece is located below the upper edge of the inner layer of the chest support piece.
6. The bra according to claim 1, characterized in that, At least one of the breast support pieces is located on the side of the bowl cup facing the skin; Along the direction away from the skin, the upper edge of the outer layer of the chest support piece is located above the upper edge of the inner layer of the chest support piece.
7. The bra according to claim 1, characterized in that, The elasticity of any of the said chest support pieces is less than the elasticity of the said cup.
8. The bra according to any one of claims 1 to 7, characterized in that, The bra includes a first support piece and a second support piece; wherein: The upper edge of the first breast support piece extends from the center of the bra to the cup side, and the endpoint where the upper edge of the first breast support piece intersects with the cup side is not lower than the intersection of the cup side and the lower bra band of the bra. The upper edge of the second chest support piece extends from the heart-shaped part to the portion of the lower strap ring near the bowl side, and the endpoint where the upper edge of the second chest support piece intersects with the lower strap ring is lower than the intersection point of the bowl side and the lower strap ring.
9. The bra according to claim 8, characterized in that, The endpoint of the first chest support piece that intersects with the bowl side is higher than the intersection point of the bowl side and the lower binding ring.
10. The bra according to claim 8, characterized in that, The edge of the first chest support piece that is fixedly connected to the center of the breast is the first side edge, and the edge of the second chest support piece that is fixedly connected to the center of the breast is the second side edge; The lower endpoint of the first side edge coincides with the lower endpoint of the second side edge, and the upper endpoint of the first side edge is located above the upper endpoint of the second side edge.