Heavy-duty work trousers

Abstract

The invention relates to work trousers (10) comprising two lower tubular sections (12, 14) joined together by a single upper tubular section (16) and defining an interior (18) opposite an exterior (20), each of said lower tubular sections (12, 14) having an upper portion (24) joining said upper tubular section (16) and a lower portion (22) extending opposite said upper portion (16) to a free lower edge (28), said lower portion (22) having a front face (30) opposite a rear face (34) and being delimited from said upper portion (24) by a median zone (26). Each of the front faces of said lower portions (22) comprises a layer of polysiloxane (34) oriented outwards. Figure to be published with the abbreviation: Fig. 1

Description

Title of the invention: Durable work trousers

[0001] The present invention relates to work trousers which provide better resistance to thermal stresses and chemical attacks.

[0002] One area of ​​application envisaged is in particular, but not exclusively, that of clothing required by personnel operating in civil engineering or public works.

[0003] Indeed, in these technical fields, operators handle cements and concretes or asphalt mixtures which are particularly aggressive for work clothing and in particular for trousers.

[0004] These are generally made with a fabric made from a cotton / polyester blend respectively, between 50 / 50 and 75 / 25, for example two thirds / one third, according to a twill weave. Such a fabric can have a surface mass of around 250 g / m2.

[0005] The trousers comprise two lower tubular parts, corresponding to the legs, which two parts are joined together by a single upper tubular part adapted to surround the pelvis. These tubular parts define an interior opposite an exterior.

[0006] Also, each of the lower tubular parts has an upper portion joining the upper tubular part and a lower portion extending opposite the upper part to a free lower edge. The lower portion has a front face opposite a rear face. And the lower and upper portions are delimited from each other by a median zone.

[0007] Preferably, this middle zone is lined with an additional layer of fabric, on the front face, at the knee, so as to protect the trousers, in particular when the operator places a knee on the ground.

[0008] Despite the nature of the fabric used and its thickness, such trousers do not last long when put into contact with overly aggressive products, such as cement or asphalt.

[0009] Also, a problem which arises and which the present invention aims to solve is to provide more resistant work trousers.

[0010] In order to solve this problem, work trousers are proposed comprising two lower tubular parts joined together by a single upper tubular part and defining an interior opposite an exterior, each of said lower tubular parts having an upper portion joining said upper tubular part and a lower portion extending opposite said upper part to a free lower edge, said lower portion having a face front opposite a rear face and being delimited from said upper portion by a median zone.

[0011] And, each of the front faces of said lower portions comprises a layer of polysiloxane facing outwards.

[0012] Thus, a characteristic of the invention lies in the implementation of a layer of polysiloxane on the front face of the lower portion of the tubular parts, which are the most exposed. In this way, the front face of the lower portions of the tubular parts is completely impermeable to all aggressive agents contained in cements, concretes or even in hot asphalts. In addition, the layer of polysiloxane is resistant to abrasion, which increases the lifespan of the trousers.

[0013] And further, the polysiloxane layer is non-stick so that ultra-heavy oils, or other substances, do not adhere or adhere only very little to the pants. As a result, cleaning such pants is easier than cleaning pants made according to the prior art.

[0014] Advantageously, according to the invention each of said front faces comprises a textile support piece and said polysiloxane layer is integral with said textile support piece.

[0015] Thus, the textile support part and the polysiloxane layer form a complexed material that is even more resistant to abrasion.

[0016] Preferably, said textile support piece is a woven knit. In this way, the woven knit being relatively closed, it is easy to produce the complexed material by coating the polysiloxane in paste form on the textile support and then to carry out its crosslinking under heat, for example in a continuous oven.

[0017] According to the invention, said textile support has a surface mass preferably between 50 g / m2 and 500 g / m2. For example, the surface mass of the textile support is 150 g / m2. In this way, the textile support is sufficiently closed to receive the layer of polysiloxane in the viscous state when it is coated on the textile support, without it penetrating through this same support.

[0018] As for the polysiloxane layer, it has, according to the invention, and in a particularly advantageous manner, a surface mass op greater than 550 g / m2. Preferably, the polysiloxane layer has a surface mass op less than 2000 g / m2.

[0019] Also, in accordance with the invention and according to a particular embodiment, each of the rear faces of said lower portions comprises another layer of polysiloxane facing outwards. The other layer of polysiloxane advantageously joins that which extends over the front face so as to preserve the entire lower portion of the two tubular parts.

[0020] In addition, each of said rear faces comprises another textile support piece and said other layer of polysiloxane is integral with said other textile support piece. Said other textile support piece has the same advantages as the previous one when it receives the layer of polysiloxane. The complex thus formed is in fact more resistant.

[0021] Furthermore, the work trousers advantageously comprise, according to the invention, a strip of self-gripping textile in said central zone. In this way, a pocket or a padded part can be fixed, at least temporarily, at the operator's knee using a strip of complementary self-gripping textile of the velcro® type.

[0022] Other features and advantages of the invention will emerge from reading the description given below of particular embodiments of the invention, given for informational but non-limiting purposes, with reference to the appended drawings in which:

[0023] [Fig.l] is a schematic front view of trousers according to the invention in accordance with a first variant embodiment;

[0024] [Fig.2] is a schematic rear view of the trousers as illustrated in [Fig.l];

[0025] [Fig.3] is a schematic front view of trousers according to the invention in accordance with a second variant of execution;

[0026] [Fig.4] is a schematic rear view of the trousers as illustrated in [Fig.3]; And,

[0027] [Fig.5] is a schematic front view of trousers according to the invention in accordance with a particular embodiment.

[0028] [Fig.l] shows a pair of work trousers 10 according to the invention, seen from the front, while [Fig.2] shows it in rear view.

[0029] Also, the work trousers here illustrated in [Fig.l] and [Fig.2] comprise two lower tubular parts 12, 14, adapted to receive the legs of an operator and an upper tubular part 16 adapted to receive the waist of said operator and where the two lower tubular parts 12, 14 meet.

[0030] And the upper tubular part 16 is delimited by a belt 15.

[0031] Also, the tubular parts 12, 14 and 16 isolate an interior 18 from the exterior 20.

[0032] The tubular parts 12, 14 and 16 are made from a fabric made from a mixture of cotton and polyester at a rate of 65% cotton and 35% polyester, in a twill weave.

[0033] Furthermore, the lower tubular parts 12, 14 have a lower portion 22 and an upper portion 24 joining the upper portion 16. The lower 22 and upper 24 portions are delimited from each other by a median zone 26 corresponding to the position of the knee.

[0034] Thus, the lower portions 22 extend from the middle zone 26 to an edge free 28 and they have a front face 30 appearing in [Fig.l], as well as a rear face 32 appearing in [Fig.2]. And the upper portions 24 extend from the middle zone 26 to the upper tubular part 16.

[0035] Also, in accordance with the invention, and according to a first variant embodiment, as illustrated in [Fig.1] and [Fig.2], the front faces 30 of the lower portion 22 of each of the lower tubular parts 12, 14 comprise a layer of polysiloxane 34 facing outwards.

[0036] According to a particular embodiment, the polysiloxane layer is associated with a textile support to form a complexed material.

[0037] Thus, the polysiloxane layer 34 is integral with the textile support. On the other hand, the textile support and the polysiloxane layer 34 are very weakly interpenetrated into each other. Also, the polysiloxane layer 34 penetrates into less than 10% of the textile support. On the other hand, it adheres perfectly to the textile support. This adhesion results from mechanical adhesion where the fibers of the surface of the textile support are trapped in the mass of the polysiloxane.

[0038] The low interpenetration of the textile support and the polysiloxane layer 34 makes it possible to obtain an extremely flexible elastically deformable complex.

[0039] The textile support is advantageously a weft knit. In other words, it is obtained on a knitting machine with weft insertion. Therefore, by choosing a relatively elastic or well-textured weft yarn, we generally obtain an elastically deformable support regardless of the direction of deformation between the component along the warp and the perpendicular component along the weft.

[0040] Preferably, the surface mass of the textile support is 150 g / m2.

[0041] As for polysiloxane, its formulation is such that its nature is rubbery with a value of extension at break greater than 300%. Also, it is for example associated with the textile support in a thin hot layer according to well-known processes.

[0042] For example, the polysiloxane layer has a thickness of between 0.5 and 5 mm. According to a particularly advantageous embodiment, the polysiloxane layer has a thickness of 1 mm. Also, the surface mass of the polysiloxane layer is close to 1400 g / m2.

[0043] According to the first variant embodiment, a piece of the complex formed from the textile support coated with the polysiloxane layer is substituted for the piece of twill fabric of the front face 30 alone of each of the lower tubular parts 12, 14.

[0044] And as illustrated in [Fig.2], the rear face 32 is completely preserved.

[0045] In other words, the twill fabric pieces of the front face are cut out while the parts of the complex are sewn back together at the edges.

[0046] In this way, a pair of trousers 10 is obtained where only the front faces 30 have a layer of polysiloxane capable of preserving the lower part of the trousers.

[0047] According to this same variant of execution, it is also possible to sew the piece of the complex directly onto the front face 30 of each of the lower tubular parts 12, 14.

[0048] According to another variant embodiment, as illustrated in [Fig.3] and [Fig.4], and where the elements identical to the object of [Fig.1] and [Fig.2] have the same references assigned a prime sign: "'", another piece of the complex formed from the textile support coated with the polysiloxane layer is substituted for the piece of twill fabric of the two front 30' and rear 32' faces of each of the lower tubular parts 12', 14'.

[0049] This further preserves the lower portions 22' of the lower tubular parts 12', 14'.

[0050] According to a particular embodiment of the invention, as illustrated in [Fig. 5] and where the elements identical to the object of [Fig. 1] have the same references assigned a double prime sign: “””, the two lower tubular parts 12”, 14” comprise in the median zone 26”, a strip of textile with a loop 36, against which is adapted to engage a textile with complementary hooks secured to a knee pad not shown. The strip of textile with loops and the strip of textiles with hooks are thus self-gripping. Such an assembly is better known under the name of the velcro® brand.

[0051] In this way, a knee pad can be added to the 26” median zones, located approximately at the level of the operator’s knee. Consequently, the 10” work trousers are also preserved when the operator puts one knee on the ground to make his work easier.

Claims

Claims

1. Work trousers (10) comprising two lower tubular portions (12, 14) joined together by a single upper tubular portion (16) and defining an interior (18) opposite an exterior (20), each of said lower tubular portions (12, 14) having an upper portion (24) joining said upper tubular portion (16) and a lower portion (22) extending opposite said upper portion (16) to a free lower edge (28), said lower portion (22) having a front face (30) opposite a rear face (34) and being delimited from said upper portion (24) by a median zone (26); characterized in that each of the front faces of said lower portions (22) comprises a layer of polysiloxane (34) facing outwards.

2. Work trousers according to claim 1, characterized in that each of said front faces (30) comprises a textile support piece and in that said polysiloxane layer (34) is integral with said textile support piece.

3. Work trousers according to claim 2, characterized in that said textile support piece is a woven knit.

4. Work trousers according to claim 2 or 3, characterized in that said textile support has a surface mass ot of between 50 g / m2 and 500 g / m2.

5. Work trousers according to any one of claims 1 to 4, characterized in that said polysiloxane layer (34) has a surface mass op greater than 550 g / m2.

6. Work trousers according to any one of claims 1 to 5, characterized in that each of the rear faces (32') of said lower portions (12', 14') comprises another layer of polysiloxane facing outwards.

7. Work trousers according to claim 6, characterized in that each of said rear faces (32') comprises another textile support piece and in that said other polysiloxane layer is integral with said other textile support piece.

8. Work trousers according to any one of claims 1 to 7, characterized in that it comprises a strip of self-gripping textile (36) in said middle zone (26”).

Images