One-piece seamless 3D tailored trousers
By using a three-dimensional cutting method, the left and right pieces are sewn together through a V-shaped area to form the inner seam of the trouser leg, which solves the problem of trouser leg asymmetry, reduces the difficulty of cutting and sewing, and improves production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU LIANCHENG HUAZHUO IND
- Filing Date
- 2025-02-28
- Publication Date
- 2026-05-26
AI Technical Summary
The current trouser cutting process is complicated, and asymmetry on the sides can easily lead to asymmetrical trouser legs, resulting in a high defect rate.
Using a three-dimensional cutting method, the left and right pieces are sewn together through a V-shaped area, with the seam inside the pant leg, forming a one-piece structure without an outer seam.
It reduces the difficulty of cutting and sewing processes, avoids asymmetrical trouser legs, and improves production efficiency.
Smart Images
Figure CN224268367U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of trousers, specifically to one-piece seamless, three-dimensional cut trousers. Background Technology
[0002] Trousers typically consist of a left front panel, a right front panel, a left back panel, and a right back panel, all sewn together and secured to the waistband. A fly is located between the left and right front panels. For example, a type of trousers disclosed in application number 202023298978.0 includes a trouser body comprising a waistband and trouser legs. Each trouser leg comprises a left front panel, a right front panel, a left back panel, and a right back panel. The lower left side of the left front and left back panels has a first adjusting piece for adjusting the leg opening size, and the lower right side of the right front and right back panels has a second adjusting piece for adjusting the leg opening size. This adjustment is achieved by creating pleats at the upper part of the leg opening and concealing snaps in the pleats. When the snaps are fastened, they are not visible, restoring the trousers to their original shape; when unfastened, they widen the leg opening. This type of trousers has a relatively complex cutting process and requires high precision in side panel cutting. If the sides are asymmetrical, the trouser legs will be asymmetrical after sewing, easily resulting in defective products. Utility Model Content
[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a one-piece seamless three-dimensional cut trousers. The trousers adopt a three-dimensional cutting method, which only requires sewing the left and right pieces together, and the seam is on the inside of the leg, which reduces the likelihood of asymmetrical trouser legs after sewing and lowers the difficulty of cutting and sewing processes.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] The one-piece seamless trousers consist of a left and a right panel. The middle sections of both panels have V-shaped sections cut from the waistband toward the leg. The two sides of the V-shaped sections are sewn together to form a one-piece seamless structure.
[0006] Preferably, the left piece includes a front left piece and a rear left piece, the upper parts of which are separated by a V-shape, and the lower parts of which are integrally connected.
[0007] Preferably, the right piece includes a right front piece and a right rear piece, the upper parts of the right front piece and the right rear piece are separated by a V-shaped section, and the lower parts of the two are integrally connected.
[0008] Preferably, the V-shaped area includes a front edge and a rear edge, with the front edge tilted towards the left or right front edge at an angle of 5-30° to reduce the width of the front hip; the connection point between the front edge and the rear edge extends to the hip area to ensure that the width of the hip is greater than the width of the waist.
[0009] Preferably, a placket is provided between the upper parts of the left front piece and the right front piece, the lower part of the left front piece is sewn to the lower part of the left back piece to form the left trouser leg, the lower part of the right front piece is sewn to the lower part of the right back piece to form the right trouser leg, and the upper parts of the left back piece and the right back piece are sewn together.
[0010] Preferably, it also includes a waist piece, which is connected to the left piece and the right piece in sequence to form a waistband structure.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] The pants of this invention adopt a three-dimensional cutting method, which only requires sewing the left and right pieces together. Moreover, the seam is on the inside of the leg, which makes it less likely for the pant legs to be asymmetrical after sewing, and reduces the difficulty of cutting and sewing processes. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the disassembled structure of this one-piece, seamless, three-dimensional cut trousers.
[0014] Figure 2 This is the front view of the one-piece, seamless, three-dimensional cut trousers.
[0015] Figure 3 This is the rear view of the one-piece, seamless, three-dimensional cut trousers.
[0016] In the attached diagram: 1-Left piece, 11-Left front piece, 12-Left back piece, 2-Right piece, 21-Right front piece, 22-Right back piece, 3-V-shaped area, 31-Front edge of front piece, 32-Back edge of back piece, 4-Platform, 5-Waist piece. Detailed Implementation
[0017] Example 1: A preferred embodiment of this utility model provides a one-piece seamless three-dimensional cut trousers, including a left piece 1 and a right piece 2, and a waist piece 5. The waist piece 5 is connected to the left piece 1 and the right piece 2 in sequence to form a waistband structure. The middle part of the left piece 1 and the right piece 2 are respectively cut with V-shaped areas 3 from the waistband to the leg. The two sides of the V-shaped areas 3 are sewn together to form a one-piece seamless structure. The trousers adopt a three-dimensional cutting method, which only requires sewing the left and right pieces. The seam is on the inside of the leg, which makes it less likely for the trouser legs to be asymmetrical after sewing, and reduces the difficulty of cutting and sewing processes.
[0018] Example 2: A preferred embodiment of this utility model provides a one-piece seamless three-dimensional cut trousers, which differs from the above embodiment only in that: the left piece 1 includes a left front piece 11 and a left back piece 12, the upper parts of the left front piece 11 and the left back piece 12 are separated by a V-shaped area 3, and the lower parts of the two are integrally connected; the right piece 2 includes a right front piece 21 and a right back piece 22, the upper parts of the right front piece 21 and the right back piece 22 are separated by a V-shaped area 3, and the lower parts of the two are integrally connected.
[0019] The V-shaped area 3 includes a front edge 31 and a rear edge 32. The front edge 31 is inclined towards the left front piece 11 or the right front piece 21 at an angle of 5-30° to reduce the width of the front hip. The connection point between the front edge 31 and the rear edge 32 extends to the hip to ensure that the width of the hip is greater than the width of the waist.
[0020] Example 3: A preferred embodiment of this utility model provides a one-piece seamless three-dimensional cut trousers, which differs from the above embodiment only in that: a placket 4 is provided between the upper parts of the left front piece 11 and the right front piece 21, the lower part of the left front piece 11 is sewn to the lower part of the left back piece 12 to form the left leg, the lower part of the right front piece 21 is sewn to the lower part of the right back piece 22 to form the right leg, and the upper parts of the left back piece 12 and the right back piece 22 are sewn together.
[0021] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.
Claims
1. A one-piece, seamless, three-dimensionally cut pair of trousers, characterized in that: Including the left piece (1) and the right piece (2), the middle part of the left piece (1) and the right piece (2) are cut with V-shaped areas (3) from the waistband to the leg respectively. The two sides of the V-shaped area (3) are sewn together to form a one-piece structure without outer seam. The left piece (1) includes a left front piece (11) and a left rear piece (12). The upper parts of the left front piece (11) and the left rear piece (12) are separated by a V-shaped area (3), and the lower parts of the two are connected as a whole. The right piece (2) includes a right front piece (21) and a right rear piece (22). The upper parts of the right front piece (21) and the right rear piece (22) are separated by a V-shaped area (3), and the lower parts of the two are connected as a whole. The V-shaped area (3) includes a front edge (31) and a rear edge (32). The front edge (31) is inclined to the left front edge (11) or the right front edge (21) at an angle of 5-30° to reduce the width of the front hip. The connection point between the front edge (31) and the rear edge (32) extends to the hip so that the width of the hip is greater than the width of the waist.
2. The one-piece seamless three-dimensional cut trousers according to claim 1, characterized in that, A placket (4) is provided between the upper part of the left front piece (11) and the right front piece (21). The lower part of the left front piece (11) is sewn to the lower part of the left back piece (12) to form the left trouser leg. The lower part of the right front piece (21) is sewn to the lower part of the right back piece (22) to form the right trouser leg. The upper part of the left back piece (12) is sewn to the right back piece (22).
3. The one-piece seamless three-dimensional cut trousers according to claim 2, characterized in that, It also includes a waist piece (5), which is connected to the left piece (1) and the right piece (2) in sequence to form a waistband structure.