Cover sheet

Abstract

The invention relates to a fitted sheet comprising a cover with a surrounding peripheral border intended to be folded down against a bed, said cover comprising at least one corner equipped with a sewing system adapted to hold said cover on the bed, in that the corner comprises a first part and a second part separated from each other by a notch, and in that the sewing system of each corner comprises a first seam adapted to form a first hem defining a first fold of the first part of the corner at the notch, and a second seam adapted to form a second hem defining a second fold of the second part of the corner at the notch; a third seam adapted to join the first hem and the second hem; a fourth seam adapted to join the first fold and the second fold.

Description

Technical field

[0001] The invention relates to the technical field of textiles for difficult environments and in particular fitted sheets for these environments. State of the art

[0002] A fitted sheet is intended to provide the user with a sleeping surface while protecting the mattress. However, depending on the environment of use, it must be able to be properly secured to the mattress. While the fitted sheet can be easily removed, it could be misused, especially in a harsh environment such as a prison or hospital.

[0003] It is known, to address this problem, to use fitted sheets with four split corners, each with a Velcro fastener. When the edges of the fitted sheet are inserted onto the mattress, the Velcro fasteners can hold the fitted sheet in place. However, this type of fitted sheet can only be used on a mattress that is independent of its bed base and can prevent the use of strap loops. Indeed, the fitted sheets known in the prior art cannot be installed on single-piece beds, i.e., beds comprising a mattress and a bed base forming a single piece. In addition, it must prevent the fitted sheet from moving relative to the mattress, particularly when a sleeping person makes a high number of movements, or prevent involuntary tearing caused by movements of people who may be very agitated, such as residents of psychiatric hospitals.

[0004] The invention is therefore placed in this context and seeks to resolve all of the aforementioned drawbacks. Thus, the invention seeks to propose a secure fitted sheet which can prevent it from being easily removed from the mattress while allowing it to be positioned on any type of mattress and / or support and whose positioning allows the use of strap loops. Presentation of the invention.

[0005] The subject of the invention is a fitted sheet comprising a cover with an enveloping peripheral edge intended to be folded down against a bed, said cover comprising at least one corner provided with a sewing system adapted to hold said cover on the bed, in that the corner comprises a first part and a second part separated from each other by a notch, and in that the sewing system of each corner comprises a first seam adapted to form a first hem defining a first fold of the first part of the corner at the right of the notch, and a second seam adapted to form a second hem defining a second fold of the second part of the corner at the right of the notch; a third seam adapted to assemble the first hem and the second hem along the notch; a fourth seam adapted to assemble the first fold of the first hem and the second fold of the second hem.

[0006] The peripheral border can be adapted to cover a bed, for example a mattress. The bed can be two-piece, i.e. comprising a separate mattress and bed base. The bed can comprise only a mattress, said mattress then being intended to be positioned on a medical bed or not. In these two embodiments, the fitted sheet can be folded normally under the bed base. The fitted sheet can allow the bed to be tucked in while still having access to the strap pass-through system arranged under the bed.

[0007] The bed can be a single piece, meaning that the mattress and the bed base can form a single piece. In this embodiment, the fitted sheet can be used to tuck the bed in while still having access to the strap pass-through system located under the bed.

[0008] The fitted sheet may advantageously have four corners. The four corners may be substantially perpendicular to the plane of extension of the fitted sheet and form substantially right angles so as to wrap around the mattress in order to keep the fitted sheet in position on the mattress.

[0009] The first and second hems may be defined by a seam at the fold. The first hem and second hem may be intended to face each other.

[0010] The fourth seam can be used to reinforce the corner and thus prevent the seams from tearing.

[0011] Advantageously, the fitted sheet comprises at least two comfort layers and two layers of fabric on either side, and in that the third seam is adapted to hold together the two comfort layers and the two layers of fabric of each of the folds when assembling the first hem and the second hem.

[0012] Each comfort layer can have a density of approximately 80 g / m 2< .

[0013] Advantageously, the fitted sheet has four layers of comfort and two layers of fabric.

[0014] Using four comfort layers and two fabric layers can result in a fitted sheet that is both soft and comfortable. Using four comfort layers and two fabric layers can result in a fitted sheet that is difficult to twist to prevent the user from injuring themselves or trying to hang themselves with it.

[0015] Advantageously, the third seam is adapted to hold together eight layers of comfort and four layers of fabric.

[0016] The third seam can be used to stiffen the angle.

[0017] Advantageously, each comfort layer comprises at least 80% aromatic polyamide, 10 to 19% aramid and 1 to 5% antistatic fibers.

[0018] The composition allows it to meet the M1 standard, meaning that the cover is non-flammable and does not release smoke in the event of a fire.

[0019] Aramid can be adapted for tear resistance.

[0020] Anti-static fibers can help make the fitted sheet more comfortable and can help prevent static electricity from building up due to friction between the fitted sheet and the mattress cover.

[0021] Advantageously, the aromatic polyamide is a meta-aramid.

[0022] Advantageously, the fitted sheet has no means of attachment.

[0023] The absence of attachment means can avoid the use of elastic bands, for example, and therefore the risks for the user.

[0024] The fitted sheet can be held on the mattress by the peripheral edge of the fitted sheet against the mattress.

[0025] Advantageously, the fitted sheet has a cross seam on its surface suitable for forming quilting.

[0026] Quilting can help keep the different layers together better. Quilting can help stiffen the fitted sheet by keeping the layers together better, making it harder for the fitted sheet to twist.

[0027] Advantageously, the peripheral edge of the cover has a dimension of at least 30 cm.

[0028] This dimension can ensure that the fitted sheet is held securely on the mattress and / or the box spring.

[0029] Another aspect of the invention relates to a method of manufacturing a fitted sheet comprising the following steps: sewing a first portion of a corner of said sheet to form a first hem comprising a first flap and a second portion of a corner of said sheet to form a second hem comprising a second flap sewing the first hem and the second hem to form a corner sewing the first flap of the first hem and the second flap of the second hem.

[0030] The first and second hems can make comfort layers inaccessible. Brief description of the figures.

[0031] Other advantages and characteristics of the present invention are now described with the aid of examples which are purely illustrative and in no way limitative of the scope of the invention, and from the appended drawings, drawings in which the various figures represent: [ Fig. 1 ] schematically represents a fitted sheet seen from below before sewing the corners of a fitted sheet according to one embodiment of the invention. [ Fig. 2 ] schematically represents an interior view of a first and a second seam of a sewing system of a corner of a fitted sheet according to an embodiment of the invention. Fig. 3 ] schematically represents an interior view of a third seam of a sewing system of a corner of a fitted sheet according to an embodiment of the invention. Fig. 4] schematically represents an interior view of a fourth seam of a sewing system of a corner of a fitted sheet according to an embodiment of the invention

[0032] In the following description, elements which are identical, by structure or by function, appearing in different figures retain, unless otherwise specified, the same references. Description of the embodiments.

[0033] We have represented in [ Fig. 1 ] a bottom view of a fitted sheet 1 according to one embodiment. The fitted sheet 1 is also described in connection with the [ Fig. 2 ], [ Fig. 3 ] And [ Fig. 4 ] each showing an interior view of a sewing system of a corner of a fitted sheet 1. The [ Fig. 2] to [Fig. 4 ] describe the different stages of the manufacturing process of the fitted sheet 1.

[0034] The fitted sheet 1 described in [ Fig. 1] comprises a cover having a peripheral border 10 adapted to wrap a mattress. The peripheral border 10 is intended to be folded against the mattress. The peripheral border 10 of the fitted sheet 1 has a dimension of approximately 30 cm.

[0035] The fitted sheet 1 comprises four comfort layers and two layers of fabric arranged on either side of the comfort layers. Each comfort layer has a density of approximately 80 g / m 2 < . The fitted sheet 1 is therefore thick and the different layers are held together by cross stitching forming a mesh and quilting 13. Each comfort layer comprises at least 80% aromatic polyamide, 10 to 19% aramid suitable for tear resistance and 1 to 5% antistatic fibers suitable for limiting the formation of static electricity.

[0036] The fitted sheet 1 has four corners 11. Each corner 11 is provided with a sewing system 12. The four corners 11 are substantially perpendicular to the plane of extension of the fitted sheet 1.

[0037] The sewing system 12 is adapted to hold the fitted sheet 1 on the mattress. Each corner 11 comprises a first part 110 and a second part 111. The first part 110 and the second part 111 are separated by a notch 112. The sewing system 12 of each corner comprises a first seam 120 forming a first hem defining a first fold 120.1 at the level of the notch. The sewing system 12 of each corner comprises a second seam 121 forming a second hem defining a second fold 121.1 at the level of the notch. Each of the first and second hems can be defined by a seam at the fold. Each pair of first and second hems is intended to be opposite each other.

[0038] The sewing system 12 of each corner includes a third seam 122 adapted to join the first hem and the second hem along the notch 112. The third seam 112 stiffens the corner 11. The third seam 112 holds together the first seam 120 and the second seam 122 of the second hem.

[0039] The sewing system 12 of each corner has a fourth seam 123 for joining the first fold 120.1 of the first hem and the second fold 121.1. The fourth seam 123 reinforces the corner 11 and prevents the user from tearing all of the seams.

[0040] Due to the presence of four seams, fitted sheet 1 has no means of attachment.

[0041] The manufacturing method for obtaining a fitted sheet 1 of this type comprises a step of folding the first part 110 of the corner 11 onto itself so that a first hem is formed. The first hem is formed by applying a first seam 120 at the notch 112 defining a first fold 120.1.

[0042] The method then comprises a step of folding the second portion 111 of the angle 11 onto itself so that a second hem is formed. The second hem is formed by applying a second seam 121 to the right of the notch 112 defining a second fold 121.1.

[0043] Once the first and second hems are made, they are held together by the application of a third seam 122 applied at the first seam 120 and the second seam 121. At this stage, the first fold 120.1 and the second fold 121.1 are free.

[0044] When the first portion 110 and the second portion 111 of the corner 11 are joined by the third seam 122, the first fold 120.1 and the second fold 121.1 are fixed together by the fourth seam 123.

[0045] The foregoing description clearly explains how the invention achieves the objectives it sets for itself, namely to provide a secure fitted sheet which can prevent it from being easily removed from the mattress while allowing it to be positioned on any type of mattress and / or support and the positioning of which allows the use of strap loops, by providing a fitted sheet comprising a cover with an enveloping peripheral edge intended to be folded down against a bed, said cover comprising at least one corner provided with a sewing system adapted to hold said cover on the bed, in that the corner comprises a first part and a second part separated from each other by a notch, and in that the sewing system of each corner comprises a first seam adapted to form a first hem defining a first fold of the first part of the corner at the right angle of the notch,and a second seam adapted to form a second hem defining a second fold of the second part of the angle at the right of the notch; a third seam adapted to assemble the first hem and the second hem along the notch; a fourth seam adapted to assemble the first fold of the first hem and the second fold of the second hem.,

[0046] In any event, the invention cannot be limited to the embodiments specifically described in this document, and extends in particular to all equivalent means and to any technically effective combination of these means.

Claims

1. Fitted sheet comprising a cover with an enveloping peripheral edge intended to be folded down against a bed, said cover comprising at least one corner provided with a sewing system adapted to hold said cover on the bed, in that the corner comprises a first part and a second part separated from each other by a notch, and in that the sewing system of each corner comprises: - a first seam adapted to form a first hem defining a first fold of the first part of the corner at the right of the notch, and a second seam adapted to form a second hem defining a second fold of the second part of the corner at the right of the notch; - a third seam adapted to assemble the first hem and the second hem along the notch; - a fourth seam adapted to assemble the first fold of the first hem and the second fold of the second hem.

2. Fitted sheet according to the preceding claim, characterized in that it has at least two comfort layers and two layers of fabric on either side, and in that The third seam is designed to hold together the two comfort layers and the two fabric layers of each of the folds when assembling the first hem and the second hem.

3. Fitted sheet according to claim 2, characterized in that It has four layers of comfort and two layers of fabric.

4. Fitted sheet according to one of claims 2 or 3, characterized in that The third seam is designed to hold together eight layers of comfort and four layers of fabric.

5. Fitted sheet according to one of claims 2 to 4, characterized in that Each comfort layer consists of at least 80% aromatic polyamide, 10 to 19% aramid and 1 to 5% antistatic fibers.

6. Fitted sheet according to the preceding claim, characterized in thatAromatic polyamide is a meta-aramid.

7. Fitted sheet according to one of the preceding claims, characterized in that it lacks any means of attachment.

8. Fitted sheet according to one of the preceding claims, characterized in that It has a cross stitch on its surface suitable for forming quilting.

9. Fitted sheet according to one of the preceding claims, characterized in that the peripheral edge of the cover has a dimension of at least 30 cm.

10. A method of manufacturing a fitted sheet according to one of claims 1 to 9 comprising the following steps: - Sewing a first part of a corner of said sheet to form a first hem comprising a first flap and a second part of a corner of said sheet to form a second hem comprising a second flap; - Sewing the first hem and the second hem to form a corner; - Sewing the first flap of the first hem and the second flap of the second hem.

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