Casual pants
By dividing the back panel into upper, middle, and lower sections, and creating a seamless edge design between the middle section and the front panel, the problem of friction on the inside of the pant legs is solved, thus improving the comfort and breathability of the pants during outdoor activities and sports.
Patent Information
- Application Number
- CN202520405501.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-10
AI Technical Summary
When wearing pants for outdoor activities or sports, the seams and overlock stitching on the inside of the pant legs can rub against the inner thighs, causing redness and swelling, which affects wearing comfort.
The back piece is cut into upper, middle, and lower sections, with the middle section and front piece formed from a single piece of fabric. The inner side of the trouser legs is seamless, and ventilation holes are provided to improve breathability and comfort.
This design avoids friction between the inner seam and overlock stitching and the thigh, improving comfort, breathability, and aesthetics.
Smart Images

Figure CN223830417U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of clothing technology, and specifically relates to a type of casual pants. Background Technology
[0002] When wearing pants for outdoor activities or striding, the seams and overlock stitching on the inside of the pant legs will rub against the inner thighs, causing redness. Prolonged friction can also lead to peeling and swelling of the legs, seriously affecting the comfort of wearing them. Utility Model Content
[0003] In view of the above problems, this utility model discloses a casual trouser to overcome or at least partially solve the above problems.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] This utility model discloses a casual trouser, comprising two trouser legs, each formed by sewing together a front piece and a back piece;
[0006] The back piece is divided into an upper section, a middle section, and a lower section from top to bottom. The dividing line between the upper section and the middle section is located at the top of the pocket, and the dividing line between the middle section and the lower section is located at the knee area. The middle section is joined with the front piece from the bottom of the front piece to the knee area, so that the middle section and the front piece are formed by cutting a single piece of fabric.
[0007] Furthermore, a plurality of first ventilation holes are provided at a first predetermined distance below the wave bottom of the front piece, and the plurality of first ventilation holes are arranged in a straight line downward at the splicing point of the middle section and the front piece.
[0008] Furthermore, the first set distance is 3cm to 6cm, the interval between two adjacent first vent holes is 1cm to 1.5cm, and the diameter of the first vent hole is 0.08cm to 0.12cm.
[0009] Furthermore, the lower dividing edge of the middle section is an inwardly concave arc shape, the upper dividing edge of the lower section is an outwardly convex arc shape, and an arc-shaped first sag is formed upward at the middle position of the lower dividing edge of the middle section, the sag of the first sag being 0.8cm to 1.2cm.
[0010] Furthermore, the upper part of the lower section is provided with a plurality of second ventilation holes, which are arranged in an arc shape along the upper dividing edge of the lower section. The plurality of second ventilation holes are at a second predetermined distance from the upper dividing edge of the lower section and at a third predetermined distance from the outer seam of the lower section.
[0011] Furthermore, the second set distance is 1cm to 2cm, the interval between two adjacent second vent holes is 1cm to 1.5cm, and the diameter of the second vent hole is 0.08cm to 0.12cm.
[0012] Furthermore, the number of the second vent holes is 10, and the third set distance is 5cm to 7cm.
[0013] Furthermore, both the first and second vent holes are formed by laser perforation.
[0014] Furthermore, a relaxation amount is formed at the middle position of the upper dividing edge of the middle section, and the value of the relaxation amount is 0.4cm to 0.8cm.
[0015] Furthermore, a second section in the shape of an inverted triangle is formed at the middle position of the upper section, and the amount of the second section is 1.6cm to 2.4cm.
[0016] The advantages and beneficial effects of this utility model are:
[0017] In this invention, the casual pants are designed by cutting the back panel into upper, middle, and lower sections, and by cutting the middle section and the front panel from a single piece of fabric. This achieves seamless three-dimensional cutting of the inner leg, avoiding friction between the seams and overlock seams on the inner thigh during exercise and improving wearing comfort. Attached Figure Description
[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0019] Figure 1 This is a diagram showing the segmented structure of the rear piece in one embodiment of the present invention;
[0020] Figure 2 This is an exploded view of the trouser leg in one embodiment of the present invention;
[0021] Figure 3 This is a diagram showing the unfolded structure of the trouser leg in one embodiment of the present invention;
[0022] Figure 4 This is a diagram showing the stitching structure of the two trouser legs in one embodiment of the present invention;
[0023] Figure 5 This is a rear view of the casual pants in one embodiment of the present invention.
[0024] In the diagram: 1. Back piece; 1-1. Upper section; 1-2. Middle section; 1-3. Lower section; 2. Front piece; 3. First vent hole; 4. First dart; 5. Second vent hole; 6. Second dart; 7. Relaxation amount. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0026] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0027] One embodiment of this utility model provides a pair of casual pants, which includes two pant legs, each formed by sewing together a front piece and a back piece, namely a left pant leg and a right pant leg; since the left pant leg and the right pant leg are symmetrical structures, the structure of only one pant leg will be described below.
[0028] Specifically, such as Figures 1 to 3 As shown, the back piece 1 is cut and divided into upper section 1-1, middle section 1-2 and lower section 1-3 from top to bottom. The dividing line between upper section 1-1 and middle section 1-2 is located at the top of the pocket, and the dividing line between middle section 1-2 and lower section 1-3 is located at the knee area. That is, the area above the top of the pocket of the back piece 1 is upper section 1-1, the area from the top of the pocket of the back piece 1 to the knee area is middle section 1-2, and the area below the knee area of the back piece 1 is lower section 1-3. Middle section 1-2 is joined with the hem of the front piece 2 to the knee area, so that middle section 1-2 and front piece 2 are formed by cutting from a single piece of fabric.
[0029] During the sewing process, first sew the upper section 1-1 to the upper part of the middle section 1-2, and then sew the lower section 1-3 to the lower part of the middle section 1-2 and the inner seam of the front piece 2. Finally, sew the outer seam of the front piece 2 to the outer seam of the back piece 1. Because the middle section 1-2 and the front piece 2 are formed from a single piece of fabric, after sewing them together to form the casual pants, the inner thigh area of the pant legs is flat and seamless. This effectively prevents the inner thigh seam and overlock seam from rubbing against the thigh during exercise, ensuring wearing comfort.
[0030] In summary, in the casual pants of this embodiment, by cutting the back piece into upper, middle and lower sections, and by cutting the middle section and the front piece from a single piece of fabric, a seamless three-dimensional cutting process is achieved on the inner side of the pant leg. This avoids friction between the seam and overlock seam on the inner thigh during exercise, thus improving wearing comfort.
[0031] In this embodiment, as Figures 2 to 4 As shown, multiple first ventilation holes 3 are provided at a first predetermined distance a below the wave bottom of the front piece 2. These first ventilation holes 3 are arranged in a straight line downwards at the junction of the middle section 1-2 and the front piece 2, forming concealed ventilation holes. During movement, hot air can escape through these holes, thus reducing stuffiness in the crotch area. The first ventilation holes are formed by laser perforation, which not only facilitates the processing of the first ventilation holes and makes them more concealed, but also prevents the fabric from unraveling at the first ventilation holes.
[0032] Furthermore, the first set distance is 3cm to 6cm, preferably 5cm; the number of first ventilation holes is 10, and the interval between two adjacent first ventilation holes is 1cm to 1.5cm, preferably 1.5cm; the diameter of the first ventilation hole is 0.08cm to 0.12cm, preferably 0.1cm. Of course, the number of first ventilation holes can be other values. By setting the above-mentioned parameters related to the first ventilation holes, the breathability of the crotch area of the casual pants is improved.
[0033] And, as Figure 1 and Figure 2 As shown, an ease allowance 7 is formed at the middle of the upper dividing edge of the middle section 1-2, with the value of ease allowance 7 being 0.4cm to 0.8cm, preferably 0.6cm. This raises the dividing pocket area, serving as ease allowance for the hips, thereby increasing the hip coverage capacity and further improving wearing comfort.
[0034] In addition, such as Figure 1 and Figure 2 As shown, a second dart 6, shaped like an inverted triangle, is formed in the middle of the upper section 1-1. The amount of dart reduction in the second dart 6 is 1.6cm to 2.4cm, that is, the base of the inverted triangle is 1.6cm to 2.4cm, and the preferred amount of dart reduction in the second dart 6 is 2cm. By setting the second dart 6, the waistband of the pants fits the body more closely, thereby improving the aesthetics of wearing them.
[0035] In this embodiment, as Figures 1 to 3 As shown, the lower dividing edge of the middle section 1-2 is a concave arc shape, and the upper dividing edge of the lower section 1-3 is a convex arc shape. A first dart 4, with an arc shape, is formed upwards at the middle of the lower dividing edge of the middle section 1-2. The amount of the first dart 4 is 0.8cm to 1.2cm, preferably 1cm. This allows the back knee circumference of the trousers to naturally bend forward with the body's leg, making it both aesthetically pleasing and comfortable for casual occasions, outdoor activities, and strenuous activities.
[0036] And, as Figures 1 to 3 , Figure 5As shown, the upper part of the lower section 1-3 has multiple second ventilation holes 5. These holes 5 are arranged in an arc shape along the upper dividing edge of the lower section 1-3. The distance between the second ventilation holes 5 and the upper dividing edge of the lower section 1-3 is a second predetermined distance, meaning the arc shape formed by the arrangement of the second ventilation holes 5 matches the arc shape of the upper dividing edge of the lower section 1-3. The distance between the second ventilation holes and the outer seam of the lower section 1-3 is a third predetermined distance b. This design improves the breathability of the leg area of the trousers by providing second ventilation holes, thus enhancing wearing comfort. The second ventilation holes are formed by laser perforation, which not only facilitates the processing of the second ventilation holes but also makes them more concealed and prevents the trouser fabric from unraveling at the second ventilation holes.
[0037] Specifically, the second set distance is 1cm to 2cm, preferably 1.5cm; the number of second ventilation holes is 10, with a spacing of 1cm to 1.5cm between adjacent second ventilation holes, preferably 1.5cm; the diameter of the second ventilation holes is 0.08cm to 0.12cm, preferably 0.1cm; the third set distance b is 5cm to 7cm, preferably 6cm. Of course, the number of second ventilation holes can be other values. By setting the above parameters for the second ventilation holes, the breathability at the bend of the casual trouser leg is improved.
[0038] The above description is merely a specific embodiment of this utility model. Under the teachings of this utility model, those skilled in the art can make other improvements or modifications based on the above embodiments. Those skilled in the art should understand that the above specific description is only to better explain the purpose of this utility model, and the scope of protection of this utility model should be determined by the scope of the claims.
Claims
1. A type of casual trousers, characterized in that, It includes two trouser legs, each made by sewing together a front and a back piece; The back piece is divided into an upper section, a middle section, and a lower section from top to bottom. The dividing line between the upper section and the middle section is located at the top of the pocket, and the dividing line between the middle section and the lower section is located at the knee area. The middle section is joined with the front piece from the bottom of the front piece to the knee area, so that the middle section and the front piece are formed by cutting a single piece of fabric.
2. The casual trousers according to claim 1, characterized in that, Multiple first ventilation holes are provided at a first predetermined distance below the bottom of the front piece, and the multiple first ventilation holes are arranged in a straight line downwards at the splicing point of the middle section and the front piece.
3. The casual trousers according to claim 2, characterized in that, The first set distance is 3cm to 6cm, the interval between two adjacent first vent holes is 1cm to 1.5cm, and the diameter of the first vent hole is 0.08cm to 0.12cm.
4. The casual trousers according to claim 2, characterized in that, The lower dividing edge of the middle section is an inwardly concave arc shape, the upper dividing edge of the lower section is an outwardly convex arc shape, and the middle part of the lower dividing edge of the middle section forms an arc-shaped first sag upwards, the sag of the first sag being 0.8cm to 1.2cm.
5. The casual trousers according to claim 4, characterized in that, The upper part of the lower section is provided with a plurality of second ventilation holes, which are arranged in an arc shape along the upper dividing edge of the lower section. The plurality of second ventilation holes are at a second predetermined distance from the upper dividing edge of the lower section and at a third predetermined distance from the outer seam of the lower section.
6. The casual trousers according to claim 5, characterized in that, The second set distance is 1cm to 2cm, the interval between two adjacent second vent holes is 1cm to 1.5cm, and the diameter of the second vent hole is 0.08cm to 0.12cm.
7. The casual trousers according to claim 6, characterized in that, The number of the second vent is 10, and the third set distance is 5cm to 7cm.
8. The casual trousers according to claim 5, characterized in that, Both the first and second vent holes are formed by laser perforation.
9. The casual trousers according to claim 1, characterized in that, The middle section has an upward relaxation amount at the middle position of the upper dividing edge, and the value of the relaxation amount is 0.4cm to 0.8cm.
10. The casual trousers according to any one of claims 1 to 9, characterized in that, A second section in the shape of an inverted triangle is formed at the middle position of the upper section, and the amount of the second section is 1.6cm to 2.4cm.