Method for manufacturing trousers and the like

Claim 3

A method according to claim 1, wherein trouser accessories such as a waistband, pockets, reinforcement pieces are precut, fitted and fixed to each pair of trousers during the making up of the latter.

Claim 4

A method according to claim 1, wherein four layers of material are initially superposed.

Claim 5

A method according to claim 3, wherein the said four layers of material consist of four superposed webs intended to be assembled in distinct pairs along a longitudinal edge forming a front crease line and along a back crease line.

Claim 6

A method according to claim 3, wherein the said four layers of material consist of two superposed flattened tubular sheaths.

Claim 7

A method according to claim 3, wherein the said four layers of material consist of two superposed flattened half-sheaths.

Claim 8

A method according to claim 6, wherein each said half-sheath is formed by longitudinally folding a web along the front fold line.

Claim 9

A method according to claim 1, wherein the said webs undergo beforehand, an ornamental finishing treatment.

Claim 10

A method according to claim 1, for making trousers having waistbands wherein two layers of material are initially superposed, the said layers consisting respectively of two single webs, the common width of which is at least equal to the perimeter of the waistband, the said tubular leg blanks being formed respectively by bilaterally folding each web on one and the same side thereof along two longitudinal lines of folding, one of which corresponds substantially to the front crease and the other to at least the buttock part of the back crease in such a manner that the folded parts meet and overlap at least partially, a complementary assembling being performed along the medial lateral line of the trousers.

Claim 11

A method according to claim 9, wherein each of the said two webs is folded bilaterally along two substantially parallel longitudinal folding lines, in such a manner that the sum of the transverse widths of the folded edges is less than the width of the remaining part of the web, and an additional web of smaller width is superposed on the outer face of each band, the said additional web overlapping the folded edges and being subsequently assembled to the latter.

Claim 12

A method according to claim 9, wherein the said bilateral folding of each web is performed outwardly with respect to the combined superposed webs.

Claim 13

A method according to claim 9, wherein the said bilateral folding of each web is performed inwardly with respect to the two superposed webs as a whole, the fork outline being traced in the form of two half-cuts on each part to be folded.

Claim 14

A method according to claim 9, comprising a continuous production line, consisting of two superposed indefinite webs delivered by at least one material feed source such as at least one rotary roll.

Claim 15

A method according to claim 13, comprising the successive steps of: periodically fixing at least transverse waistband edgings along the whole width of each of the two associated web faces intended to be brought into mutually confronting relationship and at intervals corresponding substantially to the length of the trousers, the said transverse waistband edging defining the successive trouser blanks; bringing together and assembling the said faces, in each trouser blank, along the aforementioned fork and seat outlines connecting respectively with the said transverse edgings by at least the back end; bilaterally folding each web outwardly, respectively along the longitudinal axis of symmetry of the back creases and along the front crease line, in such a manner that the thus folded parts overlap; assembling the folded overlapping edges and the back crease lines in registering relationship, so as to obtain a series of trouser blanks oriented from top to bottom in one and the same longitudinal direction of advance of the production line, each of the said blanks being adjoined by its waistband and its bottom to respectively the bottom of the preceding blank and the waistband of the following blank, and severing respectively the fork and back crease trimmings as well as each finished pair of trousers.

Claim 16

A method according to claim 14, comprising the laying, prior to the said bringing together and assembling of the webs, of means for assembling the said faces, on the face of at least one web confronting the face of the other web, the said means for assembling the said faces consisting, in particular, of an adhesive material.

Claim 17

A method according to claim 14, wherein, subsequent to the bringing together and assembling of the mutually confronting faces of the said two webs, the two webs are at least partially precut, on the one hand along the outer edge of the transverse edgings and along each of the said outlines and in prolongation of the latter, so as to connect with the associated transverse edging by its front end as well, and, on the other hand, along two back crease edge lines of each trouser blank, extending symmetrically with respect to the aforementioned longitudinal axis and connecting with one another on the said axis on the upper part of the trouser blank.

Claim 18

A method according to claim 16, wherein subsequent to the said precutting operation, assembling means such as bands of glue, are applied along at least one longitudinal edge of each said web and along at least one of the said back fold edge line on its portion spaced from the other.

Claim 19

A method according to claim 16, wherein subsequent to the said precutting operation, the two superposed webs are slitted jointly in each trouser blank along a longitudinal segment extending from the upper edge of the waistband, so as to form a foldable front bridge.

Claim 20

A method according to claim 16, wherein subsequent to said precutting operation, longitudinal fly fastening means are laid on the two opposed faces of the combined superposed webs considered as a whole, along the front medial line and in prolongation of the fork outline.

Claim 21

A method according to claim 16, comprising: the incision, subsequent to the said precutting operation performed on each said web and on each trouser blank before folding, of a hip pocket inlet slit; the laying of assembling means such as glue along and inside the entire precut fork outline up to and including the waistband; and the assembling, after folding, of the said outlines directly to the associated folded parts of the webs, so as to form patch pocket bag bottoms the said bag bottoms being separable from the fork.

Claim 22

A method according to claim 1, for making trousers with waistband edgings on a production line basis, comprising the cutting of eyes forming waistband keeper holes in each waistband edging prior to the aforementioned severing operation.

Claim 23

A method according to claim 1, working on a production line basis wherein various trouser sizes are obtained by varying the width of the aforementioned webs.

Claim 24

A method according to claim 1, performed on a production line including formers and fashioning devices with sizing gears, wherein various trouser lengths are obtained by varying said formers by displacing and changing said sizing gears of the fashioning devices.

Claim 25

A method according to claim 1, comprising a continuous production line obtained by: initially superposing two layers of material consisting respectively of two indefinite single webs the common width of which is substantially equal to the sum of a waistband perimeter and a leg bottom perimeter; bringing together and locally assembling the said webs along two parallel, longitudinally aligned series of spaced fork and seat outlines, shifted with respect to one another and oriented alternatively in opposed transverse directions from one series to the other, the said tubular leg blanks being obtained respectively by bilaterally folding the longitudinal edges of each web one towards the other and into overlapping relationship on one and the same side of said each web; assembling at least the said edges and the superposed mutually confronting faces of each flat spread leg blank along an undulated, generally longitudinal intermediate back crease line, so as to obtain in a repeating manner in the longitudinal direction Of the production line successive adjacent sets of transversely arranged couples of pairs of trousers, the two pairs of trousers in each couple being adjoined alongsides and top to bottom along their back crease lines, whereas the two couples of pairs of trousers are adjoined along a common waistband and leg-bottom transverse line and symmetrically with respect to the said line; and separating the finished pairs of trousers by severing along each common back crease line and each common waistband and leg-bottom line.

Claim 26

A method according to claim 24, wherein two pieces of substantially triangularly curved general shape are cut in each dual seat and fork outline of the said two webs, and the said two pieces are assembled to the folded parts of the webs so as to form a wall of a patched back pocket bag.

Claim 27

A method according to claim 24, comprising a periodical fixing of transverse edgings along the whole width of each of the two associated webs intended to be brought into mutually confronting relationship and at locations separated along the said webs by intervals corresponding substantially to the lengths of the trousers, each of the said transverse edgings forming a waistband strip and a leg bottom reinforcing strip while at the same time delimiting the successive trouser blanks.

Claim 28

A method according to claim 1, for making trousers with flies on a line production basis wherein the trouser fly is made during the course of line production.

Claim 29

A method according to claim 27, comprising the fixing, on the said web faces, of longitudinal separable fly fastening means, symmetrically arranged across each said transverse edging.

Claim 30

A method according to claim 28, wherein said fly fastening means consist of adhesive self-sticking separable portions.

Claim 31

A method according to claim 28, wherein said fly fastening means consist of a buttoning system.

Claim 32

A method according to claim 28, wherein said fly fastening means consist of sliding fasteners.

Claim 33

A method according to claim 28, comprising the laying, prior to the bringing together and assembling of the said two webs, of means for assembling the said webs, the said means consisting of glue applied to at least one of the mutually confronting faces of the said webs along each fork and seat outline symmetrically overlapping each said transverse edging.

Claim 34

A method according to claim 28, comprising the cutting of the two adjoined webs, on the one hand along a longitudinal line running alongside each fly fastening means on the side thereof lying within each said outline and, on the other hand, along a short transverse segment on the axis of each transverse edging and extending substantially along the width of the considered fly, so as to define the fly flaps and, lastly, along a pair of transverse back pocket inlet slits, in parallel and symmetrical relationship on either side of each transverse edging, as well as by a precutting of the webs along each said outline inside the assembling line thereof, so as to delimit the patched walls of the bag of back pockets.

Claim 35

A method according to claim 33, comprising the folding of the said fly flaps outwardly, alternately on one and the other of the two outer opposed faces of the said two adjoined webs, and by the assembling of the flaps respectively to the said faces.

Claim 36

A method according to claim 34, comprising the laying, prior to the folding of said fly flaps, of means for assembling the said flaps to the said faces, the said assembling means consisting of glue applied to the said faces.

Claim 37

A method according to claim 34, comprising the gluing, on each trouser blank, of a longitudinal edge of each said web and of an undulated back crease line respectively on the two opposed outer faces of the two adjoined webs as a whole, as well as of the inner edge of each said outline defined by the said precutting line, the transverse axis of symmetry thereof and the said longitudinal cutting line.

Claim 38

A method according to claim 36, comprising the bilateRal folding of the edges of each said web outwardly along two folding lines corresponding substantially to the front folds of the trousers, and assembling by sticking of the said edges along an intermediate longitudinal junction line, so as to form with each web a flattened tubular blank, as well as assembling by sticking of the two superposed faces of each tubular blank along the said undulated back crease line and the peripheries of the back pockets.

Claim 39

A method according to claim 37, comprising the cutting of the two webs along each undulated back crease line.

Claim 40

A method according to claim 38, comprising a precutting of the two webs in the middle of and along each said transverse edging, and by a severing of the finished trousers by pulling them off.

Claim 41

A method according to claim 38, comprising the cutting of the two webs in the middle of and along each said transverse edging for severing the finished trousers.

Claim 42

A method according to claim 1, comprising a continuous line production obtained by: initially superposing the two layers of material consisting respectively of two single central indefinite webs the common width of which is at least equal to the height of the trousers; bringing together and locally assembling the said webs along two parallel, transversely spaced series of longitudinally aligned fork and seat outlines shifted and oriented alternately in opposed transverse directions from one series to the other, in such a manner that two outlines longitudinally following each other from one series to the other close respectively outwardly on two straight longitudinal lines extending at least in proximity to the two opposed longitudinal edges of the webs and parallel thereto while being substantially symmetrical with respect to a transverse axis, the two additional layers of material consisting of two additional indefinite webs subsequently and externally superposed on the two central webs respectively on either side thereof, the said additional webs having the same width as the central webs and being assembled respectively to the latter along successive, spaced, substantially transverse lines corresponding respectively and alternately to the front and back trouser creases, so as to obtain successive adjacent trouser blanks in a repeating manner in the longitudinal direction of the webs, the said trouser blanks extending in the transverse direction of the webs and being adjoined to one another alternately along the common from and back crease lines, in such a manner that two successive trouser blanks extend alongside and top-to-bottom, the severing of the finished trousers being performed by cutting along the said common lines.

Claim 43

A method according to claim 41, wherein on each said central web, at least a portion of material lying within each said fork and seat outline is intended to be detached and assembled to the confronting face of the adjacent additional web, so as to form a wall of a patched back pocket bag.

Claim 44

A method according to claim 41, comprising the fixing of an edging strip along each longitudinal edge of each said web, so as to form respectively waistband and leg bottom edgings.

Claim 45

A method according to claim 43, wherein each said edging strip is obtained by folding back the edge of the associated web to form a hem the folded portion of which is secured to said web.

Claim 46

A method according to claim 43, wherein separable fly fastening means are fixed beforehand to the faces, intended to be placed in mutually confronting relationship, of the said two central webs, the said separable fly fixing means extending transversely according to a staggered pattern respectively from the outer edge of each said edging strips.

Claim 47

A method according to claim 45, comprising the laying, prior to the bringing together and assembling of the said two central webs, of means for assembling the said webs, in particular in the form of adhesive glue, on at least one of the two mutually confronting faces of the said webs along each said fOrk and seat outline, extending to with the outer edge of each said edging.

Claim 48

A method according to claim 45, comprising the cutting of the two adjoined central webs along a transverse line extending alongside each said fly fastening means on the side thereof lying within each said fork and seat outline, so as to delimit the double-fly flaps, and the precutting of the two webs along each said fork and seat outline, inside the assembling line thereof, so as to delimit the patched walls of back pocket bags.

Claim 49

A method according to claim 47, comprising the folding of the said double-fly flaps respectively around a transverse folding line on one and the same outer face of the combined adjoined two central webs, and by the assembling of the flaps to the said face.

Claim 50

A method according to claim 48, comprising the layering, prior to the folding of the said fly flaps, of means for assembling the said flaps to the said face of the combined two central webs, the said assembling means consisting, in particular, of glue applied to the said face.

Claim 51

A method according to claim 48, comprising the gluing on each of the two opposed outer faces of the combined two central webs, on the one hand of successive, transverse, respectively substantially straight front crease lines and undulated back crease lines, and on the other hand, of the closed inner edge of each said outline defined by the said precutting line and the said cutting line.

Claim 52

A method according to claim 50, comprising the superposition and assembling of the said additional web to each outer face of the said combined two central webs on the said gluing portions, the said additional web being beforehand provided bilaterally with the said edgings and being incised bilaterally along longitudinal, aligned, spaced segments longitudinally shifted from one edge to the other, so as to form back pocket inlet slits.

Claim 53

A method according to claim 51, comprising the cutting of belt keeper holes in the corresponding parts of each said additional web edging.

Claim 54

A method according to claim 51, comprising the transverse cutting of the assembled four webs along the successive front and back crease lines, so as to sever the finished trousers.

Claim 55

A method according to claim 1, wherein the right face of the two directly superposed layers of material corresponds to the mutually confronting faces of the said layers.

Claim 56

A method according to claim 1, wherein at least some of the assemblings and fixings are achieved by adherent sticking.

Claim 57

A method according to claim 1, wherein at least some of the assemblings and fixings are achieved by welding.

Claim 58

A method according to claim 1, wherein at least some of the assemblings are achieved by sewing.

Claim 59

A method according to claim 1, wherein the severing of the portions to be eliminated is performed by pulling or tearing away portions at least partially precut, along lines of diminished strength forming incipient rupture lines.