# US 4,392,259 A · Trouser construction > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 4,392,259 A - Document ID: US4392259A - Status: Granted - Kind: A - Application number: 06/176,227 - Filed: 1980-08-07 - Granted: 1983-07-12 - Earliest claimed: 1979-08-29 - Inventors: Guido Bredo - Web page: https://patentgrep.com/patent/US4392259A ## CPC - A41D 1/06: Trousers - A41D: OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES ## Abstract The invention relates to an anatomic trouser construction which comprises five parts, in which the fifth part added is joined onto a new shape of the four conventional parts forming a structure which gives the crotch a shape apt to the anatomy both of men and women, avoiding in particular all the inconveniences which arise in the static or movement positions, in which the legs are bent with respect to the trunk, and the converse, and avoids moreover the trousers being subject to the deformations or yieldings as occur in conventional structure which is not arranged to avoid the great strains caused by the movements of the wearer along the sewing lines. ## Claims ### Claim 1 A trouser construction comprising right and left front parts and right and left rear parts for covering the respective front and rear of a wearer's right and left hip and thigh, each said rear part having a top edge, a bottom edge, an outer edge extending substantially continuously between said top and bottom edges, a lower inner edge extending from said bottom edge to a region corresponding to the sacrum of the wearer and an upper inner edge extending from the region corresponding to the sacrum to the top edge, each said front part having a central portion, a top edge, a bottom edge, an outer edge extending substantially continuously between said top and bottom edges, a lower inner edge extending from the bottom edge to the region of the sacrum of the wearer, said lower inner edge slanting away from said central portion in the region of the thigh of the wearer, a concave crotch edge extending from the region of the sacrum toward said central portion, and an upper inner edge extending from said crotch edge to said top edge, an elongated crotch piece having a multiplicity of sides including elongated right and left continuous concave sides converging at one end thereof in an acute angle, the remainder of said sides forming a crotch piece top, wherein said right and left front parts have their upper inner edges shaped for complementary construction with said crotch piece top across the abdomen of the wearer, said right front and rear parts are joined by a right outer seam along their outer edges and by a right inseam along their lower inner edges, said left front and rear parts are joined by a left outer seam along their outer edges and by a left inseam along their lower inner edges, said right and left rear parts are joined by a back seam along their upper inner edges, said right front part is joined to said crotch piece by a right crotch joint along the crotch edge of said right front part and said right converging side of said crotch piece, said left front part is joined to said crotch piece by a left crotch joint along the crotch edge of said left front part and said left converging side of said crotch piece, whereby said back seam, said inseams and said crotch joints converge in the region of the sacrum, said acute angle of said converging sides of said crotch piece points rearwardly and said right and left crotch joints extend along anatomical lines from said sacrum to positions on the sides of the navel of the wearer, and said right and left front parts have their upper edges joined with said crotch piece top in complementary construction across the abdomen of the wearer. ### Claim 2 (depends on 1) A trouser construction as claimed in claim 1 wherein said crotch piece top includes a top edge substantially colinear with the top edges of said front parts, said elongated right and left continuous concave sides of said crotch piece continue upward along convex anatomical lines to said top edge of said crotch piece, and said right and left front parts have their upper inner edges as upward concave continuations of their crotch edges, whereby said upper inner edge of each front part is joined to one of said upward continuations of said right and left continuous sides of said crotch piece in complementary construction across the abdomen of the wearer. ### Claim 3 (depends on 2) A trouser construction as claimed in claim 2 in which a zipper is provided along a joint between a front part and said crotch piece. ### Claim 4 (depends on 3) A trouser as claimed in claim 3 wherein said zipper extends back towards the region of the sacrum. ### Claim 5 (depends on 1) A trouser construction as claimed in claim 1 wherein the upper inner edge of one front part extends upwardly from the crotch edge of said one front part to the top edge thereof, the other front part includes an abdominal flap extending laterally toward said upper inner edge of sid one front part and being bounded by said top edge and said upper inner edge of said other front part, said upper inner edge of said other part including a vertical edge adapted for complementary construction with said upper inner edge of said one front part and a lateral edge extending from said vertical edge to said crotch edge of said other part, forming a blanked out portion between said lateral edge and said crotch edge of said other front part and said crotch piece top is adapted for complementary construction with said lateral edge of said abdominal flap. ### Claim 6 (depends on 5) A trouser construction as claimed in claim 5 wherein said lateral edge is the convex complement formed when cutting the concave crotch edge in said other front part, and said crotch piece is triangular, such that said top is a third concave side sewn to said lateral edge. ### Claim 7 (depends on 6) A trouser construction as claimed in claim 6 wherein one of said elongated right and left continuous concave sides of said crotch piece is shorter than the other, the one shorter side is sewn to said crotch edge of said one front part, and the other longer side is sewn to the crotch edge of said other front part. ### Claim 8 (depends on 7) A trouser construction as claimed in claim 7 wherein said upper inner edge of said one front part is joined to said vertical edge of said abdominal flap of the other front part by a zipper. ### Claim 9 (depends on 8) A trouser construction as claimed in claim 8 wherein said zipper extends back along the joint of said crotch piece and said one front part towards the region of the sacrum. ### Claim 10 (depends on 5) A trouser construction as claimed in claim 5 wherein said upper inner edge of said one front part extends diagonally upwardly from the crotch edge to the top edge and the vertical edge of said other front part extends diagonally upwardly from said lateral edge to said top, substantially parallel to said upper inner edge of said one front part. ### Claim 11 (depends on 10) A trouser construction as claimed in claim 10 wherein said upper inner edge of said one front part and said vertical edge are joined by a zipper. ### Claim 12 (depends on 5) A trouser construction as claimed in claim 5 wherein said lateral edge of said abdominal flap is convexly V-shaped and said crotch piece top is concavely V-shaped. ### Claim 13 (depends on 12) A trouser construction as claimed in claim 12 wherein said upper inner edge of said one front part and said vertical edge of said flap are joined by a zipper. ### Claim 14 (depends on 13) A trouser construction as claimed in claim 13 wherein said zipper extends back along the joint of said crotch piece and said one front piece towards the region of the sacrum. ### Claim 15 (depends on 5) A trouser construction as claimed in claim 5 wherein said lateral edge of said abdominal flap is concavely V-shaped and said crotch piece top is convexly V-shaped. ### Claim 16 (depends on 15) A trouser construction as claimed in claim 15 wherein said upper inner edge of said one front piece and said vertical edge of said flap are joined by a zipper. ### Claim 17 (depends on 16) A trouser construction as claimed in claim 16 wherein said zipper extends back along the joint of said crotch piece and said one front piece towards the region of the sacrum. ### Claim 18 (depends on 1) A trouser construction as claimed in claim 1 wherein each front part includes an abdominal flap extending laterally toward the abdominal flap of the other front part, each abdominal flap bounded by the top edge and the upper inner edge of its respective front part, each said upper inner edge including a vertical edge adapted for complementary construction with the vertical edge of the other flap and a lateral edge extending from said vertical edge to said crotch edge of its respective front part, forming a blanked out portion between said lateral edge and said crotch edge of said front part and said crotch piece top is adapted for complementary construction with said lateral edges of said abdominal flaps and sewn thereto. ### Claim 19 A trouser construction comprising right and left front parts and right and left rear parts for covering the respective front and rear of a wearer's right and left hip and thigh, each said rear part having a top edge, a bottom edge, an outer edge extending substantially continuously between said top and bottom edges, a lower inner edge extending from said bottom edge to a region corresponding to the sacrum of the wearer and an upper inner edge extending from the region corresponding to the sacrum to the top edge, each said front part having a central portion, a top edge, a bottom edge, an outer edge extending substantially continuously between said top and bottom edges, a lower inner edge extending from the bottom edge to the region of the sacrum of the wearer, said lower inner edge slanting away from said central portion in the region of the thigh of the wearer, a concave crotch edge extending from the region of the sacrum toward said central portion, and an upper inner edge extending from said crotch edge to said top edge, an elongated crotch piece having a multiplicity of sides including elongated right and left continuous sides which are not outwardly convex and which converge at one end thereof in an actue angle, the remainder of said sides forming a crotch piece top, wherein said right and left front parts have their upper inner edges shaped for complementary connection with said crotch piece top across the abdomen of the wearer, said right front and rear parts are joined by a right outer seam along their outer edges and by a right inseam along their lower inner edges, said left front and rear parts are joined by a left outer seam along their outer edges and by a left inseam along their lower inner edges, said right and left rear parts are joined by a back seam along their upper inner edges, said right front part is joined to said crotch piece by a right crotch joint along the crotch edge of said right front part and said right converging side of said crotch piece, said left front part is joined to said crotch piece by a left crotch joint along the crotch edge of said left front part and said left converging side of said crotch piece, whereby said back seam, said inseams and said crotch joints converge in the region of the sacrum, said acute angle of said converging sides of said crotch piece points rearwardly and said right and left crotch joints extend along anatomical lines from said sacrum to positions on the sides of the navel of the wearer, and said right and left front parts have their upper edges joined with said crotch piece top in complementary connection across the abdomen of the wearer.