阅读说明：本技术 一种男裤前后裤片的制图裁剪方法 (Drawing and cutting method for front and back trousers pieces of men's trousers ) 是由 陈文强 鞠月 于 2021-01-04 设计创作，主要内容包括：本发明公开了一种男裤前后裤片的制图裁剪方法,通过在矩形布料上剪去间隙样板1、间隙样板2、间隙样板3、间隙样板4得到前后裤片,间隙样板1是用于裁剪后裤片外侧裤腿的结构,结构形态为三角形,且三角形的斜边为弧度结构。间隙样板2是用于裁剪后裤片腰口结构,其结构形态为倒立的直角三角形。间隙样板3是用于裁剪后裤片裆弯结构、前裤片裤口结构、前裤片裤管外侧结构,其结构形态为勾连形。本发明的优点：一是利于单个裤子排版和批量排版生产；二是简化了制图和裁剪方法；三是突破了传统裤子结构制图,采取间隙为样板的制图方法能更好的提高制图和裁剪效率,此方法值得推广。(The invention discloses a drawing and cutting method for front and rear trousers pieces of men's trousers, which comprises the steps of cutting a gap sample plate 1, a gap sample plate 2, a gap sample plate 3 and a gap sample plate 4 on rectangular cloth to obtain the front and rear trousers pieces, wherein the gap sample plate 1 is used for cutting the trousers legs at the outer side of the rear trousers pieces, the structure is triangular, and the bevel edge of the triangle is of a radian structure. The gap sample plate 2 is used for cutting the waist opening structure of the back trousers piece, and the structure form is an inverted right-angled triangle. The gap sample plate 3 is used for cutting the crotch bending structure of the back trouser piece, the trouser opening structure of the front trouser piece and the outer side structure of the trouser legs of the front trouser piece, and the structure is in a hook connection shape. The invention has the advantages that: firstly, the method is beneficial to the typesetting of single trousers and the batch typesetting production; secondly, the drawing and cutting method is simplified; thirdly, the drawing method breaks through the drawing of the traditional trousers structure, the drawing and cutting efficiency can be better improved by adopting the drawing method taking the gap as a sample plate, and the method is worthy of popularization.)

1. A drawing and cutting method for front and back trousers pieces of men's trousers is characterized in that the front and back trousers pieces are obtained by cutting a gap sample plate 1, a gap sample plate 2, a gap sample plate 3 and a gap sample plate 4 on a rectangular cloth, wherein the lengths of a short edge ab and a short edge cd of the rectangular cloth are 0.9 multiplied, and the lengths of a long edge ad and a long edge bc are 0.63 multiplied;

the clearance sample plate 1 is drawn as follows:

taking a rear hip side point g and a rear middle leg outer side point e on an ad, wherein the dg length is 0.5 multiplied by number, the de length is 0.26 multiplied by number, taking a rear trouser opening retraction point d1 on a cd, the dd1 length is 0.079 multiplied by type, taking the leg outer side point e as an ad vertical line and taking a rear middle leg outer retraction point e1, the ee1 length is 0.053 multiplied by type, connecting g, e1 and d1 by smooth curves to form a lower side arc of a gap sample plate 1, and g, e1, d1, d and e form a gap sample plate 1;

the gap gauge 2 is plotted as follows:

taking a rear waist drop point a1 on ad, wherein the aa1 length is 0.033 multiplied by type, taking a rear waist big point l on ab, and the al length is 0.35 multiplied by type, wherein a, a1 and l are connected in a straight line to form a gap sample plate 2;

the gap template 3 is plotted as follows:

taking a front trouser opening width point m and a front trouser opening retraction point n on ab, wherein lm is 0.168 multiplied by type, bn is 0.039 multiplied by type, and the length of a rectangle mm1n1n, mm1 and nn1 are 0.032 multiplied by type;

using 84 degrees as a crotch slant angle xlb of the back piece, wherein xl length is 0.273 multiplied type, using 134 degrees as a crotch slant angle lxx1, xx1 length is 0.184 multiplied type, using a line segment xx1 perpendicular bisector o1o, and making a line segment xx 1o length 0.058 multiplied type, and connecting x, o and x1 by smooth curves to form a crotch curve;

taking an outer side point f of the front middle leg and a side point s of the front hip on bc, wherein the length of cf is equal to a1e and is 0.35 multiplied, the length of cs is 0.24 multiplied, taking a retraction point f1 of the front middle leg by taking a perpendicular line from the outer side point f of the front middle leg, the length of ff1 is 0.033 multiplied, and l, x, o, x1, m1, n1, f1, s and b form a gap sample plate 3;

the gap gauge 4 is plotted as follows:

taking a rear crotch width point d2 and a front door point q on cd, wherein the length of d1d2 is 0.365 multiplied type, the length of cq is 0.352 multiplied type, taking a front hip large point p1 by taking the front door point q as a vertical line, the length of qp1 is 0.287 multiplied type, taking 136 degrees as an angle qp1p, the length of p1p is 0.076 multiplied type, taking a middle vertical line uu1 of a line segment p1p, the length of uu1 is 0.015 multiplied type, and smooth curves connecting p, u1 and p1 form small crotch camber;

the extension ff1 to the front mid-leg width point w, the length f1w is 0.345 x type, the extension ee1 to the rear mid-leg width point v, the length e1v is 0.421 x type, and x1, v, d2, q, p1, u1, p, w constitute the gap template 4.

2. The method for drawing and cutting front and back trousers pieces for men's trousers according to claim 1, wherein the back trousers pieces are provided with a dart 1 and a dart 2, a first point k of the back waist dart, a second point k1 of the back waist dart, a third point i of the back waist dart, and a fourth point i1 of the back waist dart are respectively taken on a line a1l, a1k is 0.078 x long, kk1 is 0.029 x long, k1i is 0.09 x long, ii1 is equal to kk1 in length, a perpendicular bisector of line sections kk1 and ii1 is respectively taken, a first point h of the back waist dart and a second point h1 of the back waist dart, h and h1 are 0.123 x long from 1, a connection k, h, k, and k1 form the back dart 1, and a connection i, h1, i1 form a back dart 2.

3. The drawing and cutting method for the front and back trousers pieces for men according to claim 1, wherein the front trousers pieces are provided with front pleats 1 and front pleats 2;

taking an upper point r of the front flat pleat and a lower point r1 of the front flat pleat on cq, and taking rr1 as an edge to make a rectangle rr2r3r1 to form the front pleat 1, wherein the qr length is 0.123X type, the rr1 length is 0.039X type, and the rr2 and r1r3 lengths are 0.145X type;

the upper t and lower t1 points of the front gather are taken at cq, the perpendicular bisector of tt1 is taken at the front gather long point t2, the length of tt1 is equal to rr1, the distance between t2 and tt1 at the gather long point t2 is 0.131 x, and t, t1 and t2 constitute the front gather 2.

4. The method of claim 1, wherein said front and back pant pieces are cut according to a drawing method, wherein said front pant piece is cut with a pouch fold line c1s1, a front pouch top dead center c1 in cd, cc1 length 0.068 x, a front pouch bottom dead center s1 in n1f1s, and ss1 length 0.113 x.

Technical Field

The invention belongs to the technical field of garment cutting, and particularly relates to a drawing and cutting method for front and rear trousers pieces of men's trousers.

Background

The traditional men's trousers cutting technology is to draw front and back trousers pieces first and then to put the sewing ends for cutting, and the traditional cutting method needs to adopt a large amount of specification data to draw and cut according to the position calculation. For example, the length of the trousers needs to be drawn and cut by adopting the size of the length of the trousers, the waist needs to be drawn and cut by adopting the size of the waist, and the opening of the trousers and the hip circumference also need to be drawn and cut by adopting the calculation method of the opening of the trousers and the hip circumference. Obviously, the traditional cutting method has long steps, more calculation formulas and various and complex drawn lines, and is not beneficial to improving the batch production of the male trousers. And the main structure is surrounded by the patterns of the trousers pieces when drawing and cutting, and the structure of the gap sample plate is neglected. In fact, in the man trousers cutting, especially in batch cutting, the cutting of the clearance sample plate can be reversed, and the cutting efficiency and the precision of the trousers pieces can be well solved. Another problem of traditional men's trousers tailoring is that the pieces of trousers are laid on the cloth, the tailored wool pattern needs to be arranged on the cloth to be adjusted, and tailoring is carried out after the adjustment, and no layout pattern predicted in advance exists. And the CAD typesetting system also arranges the cut trousers pieces on the cloth, and the arrangement is different from manual typesetting by adopting a computer technology, so that drawing and cutting of a gap sample plate are not facilitated. The drawing and cutting method for the male trousers gap sample plate can solve the problems of drawing and typesetting efficiency, and is worthy of popularization.

Disclosure of Invention

The invention provides a drawing and cutting method for front and rear trousers pieces of men's trousers, which is characterized in that the front and rear trousers pieces are obtained by cutting a gap sample plate 1, a gap sample plate 2, a gap sample plate 3 and a gap sample plate 4 on rectangular cloth, and the cutting efficiency and the precision of the trousers pieces are improved in batch cutting.

The invention is realized by the following technical scheme:

a drawing and cutting method for front and back trousers pieces of men's trousers comprises the steps of cutting a gap sample plate 1, a gap sample plate 2, a gap sample plate 3 and a gap sample plate 4 on a rectangular cloth to obtain the front and back trousers pieces, wherein the lengths of short edges ab and cd of the rectangular cloth are 0.9 multiplied, and the lengths of long edges ad and bc are 0.63 multiplied; the method specifically comprises the following steps:

1) drawing of clearance pattern 1

Taking a rear hip side point g and a rear middle leg outer side point e on an ad, wherein the dg length is 0.5 multiplied by number, the de length is 0.26 multiplied by number, taking a rear trouser opening retraction point d1 on a cd, the dd1 length is 0.079 multiplied by type, taking the leg outer side point e as an ad vertical line and taking a rear middle leg outer retraction point e1, the ee1 length is 0.053 multiplied by type, connecting g, e1 and d1 by smooth curves to form a lower side arc of a gap sample plate 1, and g, e1, d1, d and e form a gap sample plate 1;

2) gap template 2 drawing

Taking a rear waist drop point a1 on ad, wherein the aa1 length is 0.033 multiplied by type, taking a rear waist big point l on ab, and the al length is 0.35 multiplied by type, wherein a, a1 and l are connected in a straight line to form a gap sample plate 2;

3) gap template 3 drawing

Taking a front trouser opening width point m and a front trouser opening retraction point n on ab, wherein lm is 0.168 multiplied by type, bn is 0.039 multiplied by type, and the length of a rectangle mm1n1n, mm1 and nn1 are 0.032 multiplied by type;

using 84 degrees as a crotch slant angle xlb of the back piece, wherein xl length is 0.273 multiplied type, using 134 degrees as a crotch slant angle lxx1, xx1 length is 0.184 multiplied type, using a line segment xx1 perpendicular bisector o1o, and making a line segment xx 1o length 0.058 multiplied type, and connecting x, o and x1 by smooth curves to form a crotch curve;

taking an outer side point f of the front middle leg and a side point s of the front hip on bc, wherein the length of cf is equal to a1e and is 0.35 multiplied, the length of cs is 0.24 multiplied, taking a retraction point f1 of the front middle leg by taking a perpendicular line from the outer side point f of the front middle leg, the length of ff1 is 0.033 multiplied, and l, x, o, x1, m1, n1, f1, s and b form a gap sample plate 3;

4) gap pattern 4 charting

Taking a rear crotch width point d2 and a front door point q on cd, wherein the length of d1d2 is 0.365 multiplied type, the length of cq is 0.352 multiplied type, taking a front hip large point p1 by taking the front door point q as a vertical line, the length of qp1 is 0.287 multiplied type, taking 136 degrees as an angle qp1p, the length of p1p is 0.076 multiplied type, taking a middle vertical line uu1 of a line segment p1p, the length of uu1 is 0.015 multiplied type, and smooth curves connecting p, u1 and p1 form small crotch camber;

the extension ff1 to the front mid-leg width point w, the length f1w is 0.345 x type, the extension ee1 to the rear mid-leg width point v, the length e1v is 0.421 x type, and x1, v, d2, q, p1, u1, p, w constitute the gap template 4.

Furthermore, a dart 1 and a dart 2 are arranged on the rear pants piece, a rear waist notch dart first point k, a rear waist notch dart second point k1, a rear waist notch dart third point i and a rear waist notch dart fourth point i1 are respectively arranged on a line segment a1l, the length of a1k is 0.078X, the length of kk1 is 0.029X, the length of k1i is 0.09X, the lengths of ii1 and kk1 are equal, a perpendicular bisector of line segments kk1 and ii1 is respectively taken, a rear waist tip first point h and a rear waist tip second point h1 are respectively arranged, the distance between h and h1 and ki1 is 0.123X, the rear dart 1 is formed by connecting k, h and k1, and the rear dart 2 is formed by connecting i, h1 and i 1.

Furthermore, the front trousers piece is provided with a front pleat 1 and a front pleat 2;

taking an upper point r of the front flat pleat and a lower point r1 of the front flat pleat on cq, and taking rr1 as an edge to make a rectangle rr2r3r1 to form the front pleat 1, wherein the qr length is 0.123X type, the rr1 length is 0.039X type, and the rr2 and r1r3 lengths are 0.145X type;

the upper t and lower t1 points of the front gather are taken at cq, the perpendicular bisector of tt1 is taken at the front gather long point t2, the length of tt1 is equal to rr1, the distance between t2 and tt1 at the gather long point t2 is 0.131 x, and t, t1 and t2 constitute the front gather 2.

Further, pouch fold line c1s1 was drawn on the front panel, with front pouch top dead center c1 at cd, cc1 at 0.068 x length, front pouch bottom dead center s1 at n1f1s, and ss1 at 0.113 x length.

The invention has the beneficial effects that:

compared with the traditional men's trousers cutting technology, the scheme is a new men's trousers cutting method. The gap gauge comprises a gap gauge 1, a gap gauge 2, a gap gauge 3 and a gap gauge 4. The gap sample plate 1 is used for cutting the trouser legs at the outer side of the back trouser piece, the structure is triangular, and the bevel edge of the triangle is of a radian structure. The gap sample plate 2 is used for cutting the waist opening structure of the back trousers piece, and the structure form is an inverted right-angled triangle. The gap sample plate 3 is used for cutting a crotch bending structure of the back trousers piece, a trousers opening structure of the front trousers piece and an outer side structure of trousers tubes of the front trousers piece, and the structure is in a hook sickle shape. The clearance sample plate 1 is placed at the right upper corner of a rectangle abcd (/ laid cloth is rectangular), and is placed or drawn by a point d. The gap sample plate 2 is placed at the upper left corner of a rectangle abcd (/ laid cloth is rectangular), and is placed or drawn by a point a. The gap template 3 is placed at the left center of the rectangle abcd (/ laid cloth is rectangular), and is placed or drawn by a point l and a point b. The gap pattern 4 is placed at the right center of the rectangle abcd (/ laid cloth is rectangular), and placed or drawn at the point d2 and the point q. The first method is to draw each interval sample plate directly on a rectangle to form a complete typesetting picture, then cut off each interval sample plate to form a front and a back trouser piece structures, and then cut the trouser pieces on the cloth by applying the front and the back trouser piece structures. And the second method is to adopt a paper pattern printing means, firstly print the respective gap sample plates respectively, and then perform sectional cutting of the gap sample plates on the rectangular cloth (or directly perform cutting according to the gap sample plates by a push broach without drawing patterns).

Drawings

FIG. 1 is a schematic view of a pant sheet structure of the invention;

FIG. 2 is a schematic view of a gap pattern according to the present invention;

FIG. 3 is a schematic view of the dart, pleat construction of the present invention;

FIG. 4 is a schematic view of the structure of the pants sheet and the cut of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to specific embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a drawing and cutting method for front and back trousers pieces of men's trousers, which comprises a gap sample plate 1, a gap sample plate 2, a gap sample plate 3 and a gap sample plate 4. The clearance sample plate 1 is used for cutting the trouser legs at the outer side of the back trouser piece, the structure is triangular, and the bevel edge of the triangle is of a radian structure. The gap sample plate 2 is used for cutting the waist opening structure of the back trousers piece, and the structure form is an inverted right-angled triangle. The clearance sample plate 3 is used for cutting a crotch bending structure of the back trouser piece, a trouser opening structure of the front trouser piece and an outer side structure of a trouser leg of the front trouser piece, and the structural form of the clearance sample plate is in a hook sickle shape. The structure drawing and cutting method of the gap sample plate 1, the gap sample plate 2, the gap sample plate 3 and the gap sample plate 4 is represented by two ways, the first way is to directly draw each gap sample plate on a rectangle to form a complete typesetting drawing, then cut off each gap sample plate to form a front trouser piece structure and a rear trouser piece structure, and then cut the trouser pieces on cloth by applying the front trouser piece structure and the rear trouser piece structure. And the second method is to adopt a paper pattern printing means, firstly print the respective gap sample plates respectively, and then perform sectional cutting of the gap sample plates on the rectangular cloth (or directly perform cutting according to the gap sample plates by a push broach without drawing patterns). The drawing and cutting of the male trousers gap template adopt a male size of 170/76A, namely a male intermediate size.

As shown in fig. 1 to 4, the drawing and cutting of the male pants gap template in this embodiment adopts a men size of 170/76a, that is, a men's middle size, the rectangular fabric includes a rectangular left upper point a, a rectangular left lower point b, a rectangular right lower point c, and a rectangular right upper point d, the length and width of the rectangle is, the line ab is 68.4 cm, the calculation method is 0.9 × 76, the line ad is 107.1 cm, and the calculation method is 0.63 × 170. The gap pattern 1 is placed at the upper right corner of the rectangle abcd (/ laid cloth is rectangular), and placed or drawn at a point d. The gap pattern 2 is placed at the upper left corner of the rectangle abcd (/ laid cloth is rectangular), and placed or drawn at the point a. The gap pattern 3 is placed at the center of the left side of the rectangle abcd (/ laid cloth is rectangular), and placed or drawn at points l and b. The gap pattern 4 is placed at the right center of the rectangle abcd (/ laid out fabric is rectangular), and placed or drawn at the point d2 and the point q.

Points included in the structural drawing of the gap sample plate 1, the gap sample plate 2, the gap sample plate 3 and the gap sample plate 4 are included; a back waist drop point a1, a back waist large point l, a back waist orifice dart first point k, a back waist orifice dart second point k1, a back waist orifice dart third point i, a back waist orifice dart fourth point i1, a back waist dart first point h, a back waist dart second point h1, a back pocket large upper point j, a back pocket large lower point j1, a back hip large point x, a back crotch high point x1, a back crotch vertical point o1, a back crotch curvature point o, a back hip lateral point g, a back middle leg lateral point e, a back middle leg lateral approach point e1, a back middle leg width point v, a back crotch approach point d1, a back crotch width point d2, a front crotch approach point n, a front crotch cut width point m, a front crotch cut lower point n1, a front crotch upper point m1, a front middle leg lateral point f, a front middle leg approach point f 84, a front waist orifice small crotch approach point p1, a front crotch approach point p 8236, a front waist orifice small crotch approach point p, Front fly point q, front flat gather upper point r, front flat gather lower point r1, front flat gather upper length point r2, front flat gather lower length point r3, front gather upper point t, front gather lower point t1, front gather length point t2, and front insert pocket upper dead point c1, which are used for drawing the respective gap sample plates.

A method for drawing the gap pattern 1. The gap sample plate 1 is used for cutting the structure of the trouser legs at the outer side of the back trouser piece, and the structure shape is triangular. The line dg included in the drawing of the gap pattern 1 was set to 85 cm, and the calculation method was set to 0.5 × 170. The line dd1 is 6.004 cm, and the calculation method is 0.079 × 76. The line ee1 is 4.028 cm, and the calculation method is 0.053 × 76. The line segment de is 44.2 cm, and the calculation method is 0.26 × 170. The line segment dd1 and the line segment ee1 are perpendicular to the line segment dg, and arc connection points g, e1 and d1 form a lower side arc of the gap sample plate 1, and the gap sample plate 1 is used for cutting.

A method of drawing the gap pattern 2. The gap sample plate 2 is used for cutting the waist opening inclination structure of the rear trousers piece, and the structure form is an inverted triangle. The line segment aa1 included in the drawing of the gap template 2 was set to 2.508 cm, and the calculation method was set to 0.033 × 76. The line segment al is 26.6 cm, and the calculation method is 0.35 × 76. The straight connecting points a, a1 and l form a right triangle, namely the gap template 2 for cutting. Two dart paths, namely a rear dart path 1 and a rear dart path 2 are arranged on the hypotenuse a1l of the triangle, and a rear pocket is arranged at the lower ends of the rear dart path 1 and the rear dart path 2. The edge distance a1k of the post-dart lane 1 is 5.928 cm, and the calculation method is 0.078 × 76. The distance k1i between the two provinces is 6.84 cm, and the calculation method is 0.09 × 76. The width kk1 of the rear dart 1 is 2.204 cm, the width ii1 of the rear dart 2 is 0.029 × 76. The median of the width kk1 of the posterior dart 1 and the width ii1 of the posterior dart 2 are respectively drawn and perpendicular to the line segment a1l to form two dart length points h and h1, the median of the two dart lengths is equal, the length of the median is 9.348 cm, and the calculation method is 0.123 × 76. The connecting points k, h and k1 form the structure of a rear dart 1, the connecting points i, h1 and i1 form the structure of a rear dart 2, and the two darts are used for tightening the waist of the rear piece. Drawing the rear pocket of the rear trousers piece, wherein the rear pocket is a parallel line jj1 which is parallel to the waist line a1l on the left side of the dart point of the rear dart path 1 and the rear dart path 2, line segments hj and h1j1 are drawn at the two ends of the dart point, the line segment hj is h1j1 which is 1.976 cm, and the calculation method is 0.026 multiplied by 76. A rectangle is formed by a line jj1, and the width of the rectangle is 1.0 cm (/ is the width of the pocket, and is set as a constant number).

And (3) a method for drawing the gap pattern 3. The clearance model 3 is used for cutting out the curved structure of the crotch of the back trouser piece, the trouser opening structure of the front trouser piece and the outer side structure of the trouser legs of the front trouser piece, and the structural form is in the shape of a hook sickle. Setting a line segment lm as the position of the front trouser opening, and setting a line segment bn as the width of the front trouser opening. The line segment lm is 12.768 cm, and the calculation method is 0.168 × 76. The line bn is 2.964 cm, and the calculation method is 0.039 × 76. The front trouser mouth rectangle is mm1n1n, mm1 ═ nn1 ═ 2.432 cm, and the calculation method is 0.032 × 76. The crotch oblique angle xlb of the rear piece is set to 84 degrees, the calculation method is 180-96 degrees, the xl length is 20.748 centimeters, and the calculation method is 0.273 multiplied by 76. The crotch back angle lxx1 is 134 degrees and the calculation method is 180-46 degrees. The line segment o1o is a curvature line of the crotch back bend, is perpendicular to the line segment xx1 and is positioned in the middle of the line segment xx1, the line segment xx1 is 13.984 cm, the calculation method is 0.184 × 76, the length of o1o is 4.408 cm, and the calculation method is 0.058 × 76. The crotch curve is formed by connecting the points x, o and x1 by arcs. The line of the contraction of the middle leg of the front piece is ff1, the length cf is 59.5 cm equal to a1e, the calculation method is 0.35 multiplied by 170, ff1 is 2.508 cm, and the calculation method is 0.033 multiplied by 76. The point s is set as the hip side point of the front piece, the line segment cs is 18.24 cm, and the calculation method is 0.24 × 76. Points formed by the contour of the clearance sample plate 3 are; l, x, o, x1, m1, n1, f1, s, b.

A method for drawing the gap pattern 4. The gap sample plate 4 is used for cutting the crotch bending and front trouser flap fly structure of the front and the rear trouser flaps. The leg opening line segment d1d2 is set to 27.74 cm, and the calculation method is 0.365 × 76. The front waist line cq is 26.752 cm, and the calculation method is 0.352 × 76. The width d2q of the gap template 4 is the dimension (/ calculation omitted) remaining after drawing from the rear panel cuff and the front waist cuff. The leg line segment f1w in the front piece is 26.22 cm, and the calculation method is 0.345 × 76. The leg line segment e1v in the back piece is 31.996 cm, and the calculation method is 0.421 × 76. The flap segment qp1 is drawn at point q, qp1 is perpendicular to segment dc, qp1 is 21.812 cm, and the calculation method is 0.287 × 76. The angle qp1p is plotted 136 degrees, calculated as 180-44 degrees, p1p is 5.776 centimeters long, and calculated as 0.076 × 76. Line uu1 is perpendicular to line p1p and is in an intermediate position. The line uu1 is 1.14 cm, and the calculation method is 0.015 × 76. The small crotch camber is formed by connecting points p, u1 and p1 through arcs. Points formed by the contour of the clearance sample plate 4 are; x1, v, d2, q, p1, u1, p, w. The front pants sheet is provided with a front gather 1 and a front gather 2, and the front gather 1 is formed by points r, r2, r3, and r 1. The width rr1 of the front gather 1 is 2.964 cm as the width tt1 of the front gather 2, and the calculation method is 0.039 × 76. The length rr2 of the front gather 1 is r1r3 is 11.02 cm, and the calculation method is 0.145 × 76. The margin qr of the front gather 1 is 9.348 cm, and the calculation method is 0.123 × 76. The front gather 2 is formed by points t, t1, and t 2. The length of the front pleat 2 is the central line of the pleat, which is perpendicular to the line cd, the length is 9.956 cm, the calculation method is 0.131 × 76, and the structure of the front pleat 2 is triangular (/ the front pleat is made into a triangle by ironing). The line segment c1s1 is a folding line of the trousers pocket, and the upper distance cc1 is 5.168 cm, the calculation method is 0.068 × 76, the lower distance ss1 is 8.588 cm, and the calculation method is 0.113 × 76.

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