WO2011121210A1

WO2011121210A1 - Method for manufacturing a pair of pants, each leg of which is provided with a built-in knee pad

Info

Publication number: WO2011121210A1
Application number: PCT/FR2011/050609
Authority: WO
Inventors: Emmanuelle Dias; Coralie Sanchez; Bruno Deveaux
Original assignee: Decathlon
Priority date: 2010-04-01
Filing date: 2011-03-23
Publication date: 2011-10-06
Also published as: FR2958124A1; FR2958124B1

Abstract

The present invention relates to a method for manufacturing a pair of pants, each leg of which, having a longitudinal direction, stops under the knee and is provided with a knee pad (7) that is built into said pants. Said method in particular includes steps of pre-assembling and assembling first flexible panels (9, 10) for forming the pants. Characteristically, said method also comprises the following steps: c. flatly pre-assembling second resilient panels and optionally a third panel that is less resilient than the second panels and is intended for covering the popliteal fossa area, said second and optionally said third panels being intended to form the knee pad (7); d. flatly assembling, in a first transverse attachment line, the upper edge of the pre-assembled knee pad (7) onto the back surface of at least one longitudinal panel (9, 10) for forming a pants leg at a distance (H) from the lower edge (9c, 10c) of said first panel (9, 10) and greater than the height (h) of the knee pad (7) from a distance (D). The second resilient panels of the pre-assembled knee pad (7) are placed such that the maximum resilience thereof is in the transverse direction of the pants leg.

Description

METHOD FOR MANUFACTURING A TROUSER WITH EACH LEG PROVIDED WITH AN INTEGRATED KNEE

The present invention relates to the technical field of a pants which each leg is provided with a toggle integrated pants.

The joints of the knees support the weight of the body so that they are particularly stressed. When practicing a sport that particularly requires the knee, especially in rotation, such as for fitness, gymnastics or yoga, it is recommended to wear a knee brace to maintain the knee joint and protect the ligaments. These knee pads must be worn against the knee to ensure proper support and are usually worn under pants more or less adjusted.

This system has the disadvantages that kneepads generate an unsightly extra thickness at the knee, are long to place on the knee especially when the garment intended to be placed on the knee is close to the body and adjusted. In the latter case, the knee should be placed on the knee before donning the pants adjusted, the risk is to move the knee and it forms uncomfortable and unsightly folds.

When the knee pad is placed on the fitted and elastic garment, it loses its holding effect since it is not pressed directly against the knee. In addition, the knee tending to slip on the elastic garment, it forms uncomfortable piis, even hurtful.

In general, as soon as the toggle comes into contact with another garment, it tends through friction between it and the garment and the movements of the knee joint, to slip and form folds.

The document US 2009/0013442 thus teaches, in order to partially overcome the aforementioned drawbacks, pants having a knee protection device, which comprises damping elements supported by an inner wall which is sewn to the outer wall constituting the face. visible outer of the pants. The damping elements are arranged so as to protect the knee shocks and thus cover in operation only the anterior face of the knee. The inner wall is stitched to the outer wall according to the usual stitching points at the waist, lapel and side seams. These pants have the advantage that the knee protection device is integrated during the preparation of the pants and facilitates subsequent donning of the device at the same time as the pants.

Nevertheless, this pant has the disadvantage that the device provides no mechanical support to the knee and does not maintain the ligaments. The protection device also does not allow to obtain an effect of proprioception since there is no maintenance. The inner wall supporting the protective device creates an uncomfortable extra thickness and generates heat, which are unacceptable effects for the practice of a sport.

Finally, the fixing of the inner wall against the outer wall is arranged in such a way that the inner wall is "floating" inside the leg of the pants, thus creating friction and heating on the wearer's skin.

The present invention solves all or part of the aforementioned problems in that it relates to a method of manufacturing pants whose each leg having a longitudinal direction stops below the knee and is provided with a toggle joint integrated with said pants, method comprising in particular steps of pre-assembly and assembly of first panels, flexible, intended to form the pants. Typically, the manufacturing method further comprises the following steps:

at. Flat pre-assembly of second elastic panels, and possibly a third panel less elastic than the second panels and intended to cover the area of the popliteal hollow, said second and possibly said third panels being intended to form the toggle joint, b. Flat assembly, according to a first transverse fastening line, preferably by flat and extensible seam, of the upper edge of the pre-assembled knee pad on the reverse side of at least one first longitudinal panel, intended to form a leg of the trousers, at a distance (H) from the lower edge of said first panel which is greater than the height (h) of the toggle lever by a distance D,

and the second elastic panels of the pre-assembled kneepad are arranged such that their maximum elasticity is in the transverse direction (T) of the trouser leg.

The transverse direction (T) of the leg of the pants is defined as being perpendicular to the longitudinal direction (L) of the trousers, and corresponding to the directions (T, L) when the pants are worn.

The knee pad essentially comprises second elastic panels so that it is perfectly fitted on the knee and provides mechanical support as well as good proprioception, these effects being reinforced by the fact that the knee pad comes into direct contact with the joint of the knee. knee and part of the ligaments in this region of the body.

Preferably, the first panels are assembled according to flat and extensible seams.

Advantageously, the use of a flat and stretch seam reduces the final thickness of the knee and the pants, and improves the discretion of the knee placed under the pants and comfort of the wearer since thick seams and irritants are suppressed.

Preferably, the first transverse attachment line is disposed in an area on the reverse side of at least one first longitudinal panel so as to end up when the pants are worn on the thigh and near the upper end of the knee. .

The knee joint is secured to the leg of the pants by its upper edge by means of a flat seam so that it is not visible from the outside of the pants. Moreover, not being fixed on an inner panel reported against one of the first longitudinal panels forming the outside of the leg of the pants, this assembly does not generate extra thickness or heating. The knee brace is located at the knee, not at the waist or other regions of the pants away from the knee so that when the trousers are put on, the knee pad is perfectly placed and pressed against the knee. knee.

The knee joint results from the assembly of a plurality of second elastic panels, each panel of which has a shape and elasticity configured so as to provide targeted mechanical support to the region of the knee it covers in operation thereby improving the overall mechanical support of the knee and proprioception.

The second elastic panels have an elasticity in the transverse direction (T) of the pant leg, greater than their elasticity in the longitudinal direction (L) of said leg.

The force [daN] necessary to lengthen the second elastic panels of a given elongation [%] in the transverse direction (T) of the trouser leg is less than the force [daN] necessary to lengthen said second panels according to said elongation given [%] in the longitudinal direction of said leg.

This arrangement makes it possible to maintain the knee in its flexion and extension movements as well as the pivoting movements of the latter.

The third panel has elasticity in the transverse (T) and longitudinal (L) directions of the pant leg lower than the elasticities of the second elastic panels in said directions (T, L).

The first panels can be configured to fit the shape of the leg they cover or on the contrary so as not to marry the leg and get a smooth rendering, it does not affect the technical effects of the knee pad.

The first, second and third panels are preferably obtained from textile panels in which they have been cut. Textile panels can be woven, knitted or nonwoven, they include threads elastic, preferably elastane-based. The cutting can be performed for example by ultrasound to obtain a clean cut without fraying.

In a variant, the manufacturing method comprises the following steps:

vs. Forming a fold by folding the lower edge of the leg over a distance of at most equal to D,

d. Forming a lapel assembly according to a second transverse attachment line of the lower edge of the knee joint preassembled with said fold.

Advantageously, the fixing of the kneepad according to its lower edge to the lapel of the pant leg can camouflage the lower edge of the knee.

The knee, located on either side of the knee, and is perfectly integrated, by its own confection intervening during the making of the pants, so as not to float inside the leg of pants between two distinct points knee as in the state of the art between the waist and the lower edge of the pants. This arrangement avoids the formation of folds of the knee on itself, and consolidates the lower edge of the knee with that of the pant leg at the fold. The user when he puts on the trouser leg easily places the fold under the knee and thereby the lower edge of the knee which is found perfectly disposed against the latter.

In a variant, the second elastic panels, and possibly the third elastic panel, are assembled according to their side edges, upper and / or lower non-superposed.

This arrangement, combined with an expandable flat seam according to the invention, reduces the thicknesses that exist in the state of the art at the kneepads arranged under pants, thus improving the comfort and aesthetics of the trouser leg seen externally. Preferably, the first panels are assembled according to their side edges, upper and / or lower not superimposed to reduce the thickness of the device and improve the comfort of the wearer.

In a variant, when closing the crotch of the pants, the assembly is made of at least a first panel and the lateral edges of the toggle.

The making of the toggle is thus completed during the making of the pant leg. The manufacturing process of the knee and pants is thus performed during the same garment operation which allows to integrate aesthetically the knee to the pants, reduces the cost of clothing. The knee joint is integrated locally at the knee and attached to the leg of the pants in at least four seams (upper, lower and lateral edges), it is found in operation perfectly arranged directly against the knee.

In a variant, the assembly of at least one first panel and the lateral edges of the toggle joint is made by means of a zipper.

This arrangement facilitates donning of the pant leg and the provision of the knee pad against the knee thus improving mechanical support and proprioception.

The user can also temporarily relax and ventilate the knee joint by eliminating the effect of mechanical support during the practice of a sport.

In a variant, the second elastic panels, and possibly the third elastic panel, are preformed so as to match the areas of the knee that they cover.

The preforming operation is performed hot by the arrangement of the second panels, and possibly the third panel, cut to the desired shape, on a workpiece having the three-dimensional shape targeted for each of said panels. The second, and possibly third, preformed panels are thus three-dimensional and follow the natural shapes of the knee areas they cover.

This arrangement improves comfort and proprioception.

Alternatively, the toggle comprises a second central elastic panel for covering the anterior face of the knee, delimited by convex upper and lower edges and concave inner and outer lateral edges.

Advantageously, the upper, lower and lateral edges have a specific shape so as to naturally fit the knee above and below the patella and on the sides to improve comfort.

In a variant, the toggle joint comprises two elongate inner and outer elastic second panels disposed on either side of the inner and outer side edges of said second central elastic panel, and arranged so as to cover the inner and outer regions of the knee.

In a variant, said second inner and outer elastic panels each have a convex lateral edge and a concave lateral edge.

Alternatively, the toggle comprises second upper and lower elastic panels arranged on either side of the portion of the knee covering the popliteal hollow.

In a variant, the second upper and lower elastic panels respectively have their lower edge and their concave upper edge.

The edges of the two elastic panels according to the invention have shapes studied so as to naturally marry the folds and shapes of the knee areas they cover.

In a variant, the portion of the knee covering the popliteal hollow is recessed.

This arrangement facilitates the evacuation of heat and moisture and suppresses wrinkling in this fragile region of the knee joint. In a variant, the knee covering the popliteal hollow comprises a third elastic panel arranged so that the maximum elasticity is in the longitudinal direction (L) of the leg of the trousers, preferably said third panel is arranged in such a way as to favor the evacuation of perspiration and heat.

The third panel can thus include days of the order of a millimeter.

In a variant, said at least one first longitudinal panel comprises a perforated zone whose days are at least of the order of a millimeter, said zone being disposed on said first panel so as to cover when the pants are worn the popliteal hollow.

This arrangement promotes the evacuation of perspiration and heat while decreasing the tendency to the formation of folds, which improves the comfort of the wearer.

The invention will be better understood on reading an exemplary embodiment of pants according to the invention, cited in a non-limiting manner, and illustrated in the figures below, appended hereto, and in which:

- Figure 1 is a representation of the second panels and third panel according to the invention before the pre-assembly step of a first example of toggle;

- Figure 2 is a representation of the assembled kneepad whose different panels are also shown in Figure 1;

- Figure 3 is a schematic representation illustrating the flat assembly of the toggle shown in Figures 1 and 2 on a leg of a pair of trousers;

FIGS. 4A and 4B are diagrammatic representations respectively of the front and rear faces of trousers, each leg of which is equipped with a toggle joint represented in FIGS. 1 and 2;

FIGS. 5A, 5B and 5C are representations respectively of the front, side and rear views of the toggle joint shown in FIGS.

2 worn on the right knee of the pants shown in Figures 4A and 4B. Figure 1 shows the five second elastic panels (1-5) and a third elastic panel 6, before their pre-assembly, cut into specific shapes that form the toggle 7 according to the invention.

The second elastic panels (1-5) and the third elastic panel 6 are preformed so as to match the areas of the knee they will cover once the knee joint 7 assembled and worn.

The second panels (1-5) comprise a second central elastic panel 1 delimited by upper edges 1a and 1b convex and inner side edges 1b and external the concave; two second inner elongate 2 and outer 3 elongate panels each having a convex side edge 2b, 3b and a concave side edge 2a, 3a; two second upper elastic panels 4 and lower 5 respectively having a lower edge 4b and a concave upper edge 5a.

The third panel 6 has elasticity, once assembled in the toggle (7) and the pant leg, lower in the transverse (T) and longitudinal (L) directions than the elasticities of the second panels (1-5) in said directions (T, L).

The second elastic panels (1-5), once assembled, have maximum elasticity in the transverse direction (T) of the leg of the pants.

The second panels (1-5) and the third panel 6 are preassembled flat according to their non-overlapping edges or edge to edge so as to form the pre-assembled knee pad 7 having upper edges 7a, lower 7b, and lateral 7c, 7d . The second panels (1-5) are arranged in the pre-assembled knee pad 7 so that their maximum elasticity is in the transverse direction (T) of the toggle joint which will also correspond to the transverse direction (T) of the pant leg.

The pre-assembled knee lever 7 is assembled flat, according to a first transverse fastening line 8, by an extensible flat seam, from its upper edge 7a on the upstanding faces 9b, 10b of two first pre-assembled longitudinal panels 9, 10 intended to forming a first leg 11 of the trousers 12, at a distance H from the lower edges 9c, 10c of said first panels 9, 10 which is larger than the height h of the preassembled knee lever 7 by a distance D.

Then, a fold 13 is formed by folding the lower edges 9c, 10c of the first leg 11 over a distance at most equal to D, which makes it possible to form a lapel by assembling along a second transverse fastening line 14 of the lower edge 7b of the pre-assembled knee brace 7 with said fold 13. Finally, when closing the crotch 15 of the pants 12, the first two panels 9, 10 and the lateral edges of the toggle joint 7c, 7d are assembled according to a third fastening line 16 by a seam, preferably flat and extensible.

The above operations are repeated for making the second leg 17 of the pants 12.

The pants 12, each leg 11, 17 having a longitudinal direction (L) stops below the knee, and is provided with a toggle joint 7 integrated pants 12, is shown in Figures 4A and 4B. The trousers 12 were formed during pre-assembly and assembly stages of the first panels, including the first panels 9,10.

Figures 5A to 5C show the arrangement of the knee pad 7 under the leg 11 of the pants 12.

In a variant, the first longitudinal panel 10 comprises a perforated zone 18 whose days are of the order of one millimeter, said zone 18 being disposed on said first panel so as to cover, when the trousers 12 is worn, the popliteal hollow. At least one first panel assembled in the second leg 17 also has a zone 18.

This perforated zone 18 promotes the evacuation of heat and perspiration in combination with the third elastic panel 6 and decreases the tendency to form folds.

The second central panel 1 covers the anterior surface of the knee. The two elongate second inner and outer 2 outer panels 3 are disposed on both sides of the inner side edges 1b and external 1a of the second central panel 1, and cover the inner 18 and outer 19 of the knee. The second upper and lower panels 4 are arranged on either side of the portion of the toggle covering the popliteal recess 20. The popliteal recess 20 is covered with the third panel 6 arranged so that in the knee pad 7 the elasticity maximum in the longitudinal direction (L) of the leg 11 of the pants 12 which releases the bending movements and / or extension. While the second elastic panels (1-5) having a maximum elasticity in the transverse direction (T), and therefore less in the longitudinal direction (L), maintain the knee in its flexion, extension and pivoting movements.

Preferably, the third panel 6 is in a textile having openings at least of the order of a millimeter to promote the evacuation of heat and perspiration.

Claims

1- A method of manufacturing a pair of trousers (12) each leg (11,17) having a longitudinal direction (L) stops below the knee and is provided with a toggle joint (7) integrated with said pants (12), method comprising in particular steps of pre-assembly and assembly of flexible first panels (9, 10) for forming the trousers (12), characterized in that it further comprises the following steps: a. Flat pre-assembly of second panels (1,2,3,4,5), elastic, and possibly a third panel (6) less elastic than the second panels and intended to cover the area of the popliteal hollow, said second and optionally said third panel being intended to form the toggle (7), b. Flat assembly, according to a first transverse fastening line, preferably by flat and expandable seam, of the upper edge of the pre-assembled toggle joint (7) on the back side of at least one first longitudinal panel (9, 10), for forming a pant leg at a distance (H) from the lower edge (9c, 10c) of said first panel (9,10) which is greater than the height (h) of the toggle (7) by a distance (D), and in that the second elastic panels (1,2,3,4,5) of the pre-assembled toggle joint (7) are arranged in such a way that their maximum elasticity is in the transverse direction (T) of the leg (11,17) of the pants (12).

2. Manufacturing process according to claim 1, characterized in that it comprises the following steps:

vs. Forming a fold by folding the lower edge (9c, 10c) of the leg over a distance of at most equal to D, d. Forming a lapel by assembling a second transverse fastening line (14) of the lower edge (7b) of the preassembled toggle joint (7) with said fold (13).

3- Manufacturing process according to either of claims 1 and 2, characterized in that the second elastic panels (1,2,3,4,5), and optionally the third elastic panel (6), are assembled by a flat and extensible seam according to their side edges, upper and / or lower not superposed.

4- Manufacturing method according to one of claims 1 to 3, characterized in that, during the closure of the crotch (15) of the pants (12), is made of the assembly of at least a first panel ( 9,10) and side edges (7c, 7d) of the toggle (7).

5. Manufacturing process according to claim 4, characterized in that the assembly of at least a first panel (9,10) and side edges (7c, 7d) of the toggle joint (7) is made via a zipper.

6. Manufacturing process according to claims 1 to 5, characterized in that the second elastic panels (1,2,3,4,5), and optionally the third elastic panel (6), are preformed so as to match the areas of the knee they cover.

7- The manufacturing method according to claims 1 to 6, characterized in that the toggle (7) comprises a second central elastic panel (1) intended to cover the anterior face of the knee, delimited by upper (la) and lower ( lb) convex and inner (le) and external (ld) concave lateral edges.

8- The manufacturing method according to claims 1 to 7, characterized in that the toggle joint (7) comprises two elongated inner second (3) and external (2) elastic panels arranged on either side of the inner side edges (the) and external (ld) of said second central elastic panel (1), and arranged so as to cover the inner and outer regions of the knee. 9- The method of claim 8, characterized in that said second inner (3) and outer (2) elastic panels each have a convex lateral edge (2b, 3b), and optionally a concave lateral edge (2a, 3a).

10- Method according to claims 1 to 9, characterized in that the toggle joint (7) comprises second upper elastic panels (4) and lower (5) arranged on either side of the portion of the toggle (7) covering the popliteal fossa.

11- The method of claim 10, characterized in that the second upper (4) and lower (5) elastic panels respectively have their lower edge (4a) and their concave upper edge (5a).

12- Method according to claims 1 to 11, characterized in that the portion of the toggle (7) covering the popliteal hollow is recessed.

13- Method according to claims 1 to 11, characterized in that the portion of the toggle (7) covering the popliteal cavity comprises a third elastic panel (6) arranged such that the maximum elasticity is in the longitudinal direction (L ) of the leg (11,17) of the pants (12), preferably said third panel (6) is arranged to promote the evacuation of perspiration and heat.

14- Method according to claims 1 to 13, characterized in that said at least first longitudinal panel (9,10) comprises a perforated zone whose days are at least of the order of a millimeter, and in that this zone is arranged on said first panel (9,10) so as to cover when the pants (12) is worn the popliteal hollow.