EP3509959A1

EP3509959A1 - Fastening device

Info

Publication number: EP3509959A1
Application number: EP17768685.4A
Authority: EP
Inventors: Guy CHARLES
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-09-09
Filing date: 2017-08-30
Publication date: 2019-07-17
Also published as: BE1023868B1; WO2018046360A1

Abstract

The invention relates to a fastening device (1) for fastening objects together or to a part of the human body, said device having an elongate body comprising two ends (5, 7), at least one clasp (11) being cut into at least one of the ends (5, 7) by a notch passing through the body thereof, said one or more clasps (11) each comprising a head (15) with a top and a bottom (17), at least one end (5, 7) having at least one opening (13) intended for receiving said or at least one of said clasps (11) of the other end (5, 7) with a view to closing the fastening device (1); the device being characterised in that the bottom (17) of said one or more clasps (11) has, at the point where it links with the head (15), a catch (19, 21) intended for catching the edge of the opening (13) or of one of the openings (13) when said head (15) is inserted into said opening (13); and in that at least one ending of at least one notch forming a clasp (11) has a perforation (31, 33), so as to form at least one of the edges of the bottom (17) and the one or more associated catches (19, 21).

Description

ATTACHING DEVICE

The invention is in the field of devices for attaching objects, and more particularly relates to a strap or an attachment tape, it also relates to a fastening system comprising a plurality of fastening devices according to the invention.

There are different attachment devices to link multiple objects together. These devices comprise for example a body and a closure means. The body is made of foldable flexible material, such as leather or some plastics, adapted to embrace several objects between them. The attachment of the objects is achieved through a closure means, to lock the device.

Today, many devices are molded in one piece to reduce production costs. As a result, the means of closing these devices is integral with the body of the device.

US 3913179 discloses for this purpose a strap comprising at one end a series of longitudinal openings at "T" and at the other end a tongue adapted to be inserted into the series of openings. In order to close the device, the tongue is inserted in the vertical bar of the "T", rotated 90 ° and slid to be blocked in the horizontal bar of the "T".

The document CN 104648809 has for its part a ribbon, whose closure is provided by a clasp located at one of its ends and having locking edges. The other end of the ribbon comprises an elastic ring comprising two different diameters of opening. The clasp is intended to penetrate through the opening having the largest diameter and to slide into the opening having the smallest diameter so as to be locked in the latter.

The document WO 2002068289 puts forward a strap whose one end comprises a double arrowhead separated by a space and another end comprises two openings. The foot of each arrowhead is intended to be blocked at the edges of one of the two openings. One of the disadvantages of the known fastening devices is that they are difficult to manipulate with one hand, in particular because one end penetrates fully into the closure device. In fact, they do not allow a user to easily trap or attach objects against a part of his body for example on his forearm or his hand independently. In particular, it is difficult for a person with difficulty in handling, and in particular persons with disabilities, mutilated, or suffering from certain pathologies such as deforming rheumatism, to manipulate such fastening devices. There is therefore a need for attachment devices that can be easily manipulated with one hand both for their positioning and for their closure or opening, and that can be used for the attachment of objects to each other or to a part of the body of the user. The object of the invention is to meet at least one of the problems encountered in the prior art by proposing a new and more ergonomic fastening device, the closing and opening mechanism of which does not require any rotation of certain elements with respect to others, neither to raise them for insertion, nor to make them penetrate integrally into one of the closing elements of the device, so that the elements participating in the closure can be manipulated with one hand.

For this purpose the invention relates to a fastening device for attaching objects to one another or to a part of the human body, said device having an elongated body comprising a central part and two ends, said device having at least a clasp cut from at least one of the ends of the body by a cut through the thickness of said end, so that said clasp or clasps are framed by the edges of the end in which they are cut, said one or more clasps each comprising a head with a top and a foot, the foot being of width less than the width of the head; the device being configured so that the end opposite to that having at least one clasp, or both ends each comprising at least one clasp have at least one opening for receiving said or at least one of said clasps of the other end in order to the closure of the fastening device,

the device being remarkable in that the foot of said clasp (s) has at its connection with the head at least one notch intended to hook the edge of the opening when the head is inserted into said opening in order to close the device of attachment, and in that at least one end of at least one notch forming a clasp has a perforation, so as to form at least one of the edges of the foot of said clasp and the or notches associated.

According to particular embodiments, the invention may comprise one or the other of the following characteristics, taken separately or according to all the possible combinations:

- Each end of the device has at least one clasp and at least one opening, said opening being intended to receive said one or one of said clasps of the opposite end to close the fastener.

The head of at least one clasp has an ovoid, semicircular, semi-elliptical or rhomboidal shape.

The perforation (s) are circular, ovoid or elliptical.

The foot connects the clasp to one end of the body of the device.

The length of the head of at least one clasp is greater than the length of the foot of the or these clasps in the longitudinal direction of the body of the device. - At least one end has at least two clasps aligned along the longitudinal axis of the device, preferably at least one opening is interposed between said clasps.

- The clasp or clasps are oriented so that the foot of the clasp or clasps are parallel to the longitudinal direction of the device.

- The clasp or clasps are oriented so that their foot is closer to the ends of the device than the top of their head.

- The width of the opening or openings for receiving or clasps is less than or equal to the width of the head or clasps, preferably the width of the opening or openings for receiving or clasps is equal to the width of the head of the clasp (s).

- The portion or portions of at least one end comprising either an opening or a clasp have an elliptical or circular shape.

The opening or at least one of the openings has an ovoid shape, circular, elliptical or rhomboidal, preferably of shape similar to the shape of the head or clasps intended to penetrate or.

At least one of the ends includes an end opening of the end or each end, and said at least one opening is adjacent to a clasp.

The device also has at least one passer intended to grip at least one clasp of one end and at least one opening of the other end by sliding along the body, when said clasp (s) are respectively passed through said or said openings. The openings are distributed over the ends and the central part of the body, preferably the openings are distributed uniformly over the entire length of the device.

- The device has an axial symmetry along a transverse axis and / or along a longitudinal axis.

- The device has a symmetry according to its thickness.

The device is made of an elastic material, preferably an elastomer chosen from a terpolymer of ethylene of propylene and a diene (EPDM) or a thermoplastic elastomer (TPE) or a rubber.

- At least one end has at least two clasps aligned according to the width of the device.

Said device is a metacarpal bracelet.

The device is a means for attaching loads to a means of transport, a clothing clip, a belt, a luggage clip, or a bandage.

The invention also relates to the use of a fastening device as defined above for holding objects against a part of the human body, preferably against a hand. The invention also relates to a use of a device as described above as a metacarpal bracelet.

The invention also relates to a fastening system comprising at least two fastening devices as defined above, the two fastening devices being interconnected by their edge over at least a part of their length. Preferably, the two fasteners are integral.

According to one embodiment of the invention, said system is a tarpaulin or a load retaining net.

According to another embodiment, at least one device is integral with the other fastening devices connected to each other by their wafer and said device or devices are positioned perpendicular to said other devices so that at least two edges perpendicular to the fastening system comprise at least one clasp. As will be understood from reading the definition that has just been given and according to a first aspect, the invention proposes a fastening device designed to be easily handled by one hand. To do this, the attachment device comprises at least one clasp cut into the end of the body of the device so as to be framed in the body of the device thus forming a clip-type clip that is intended to come to pinch the edge of the device. an opening located on the other end of the device. When closing the device, the user will first superimpose a clasp with an opening by winding the device on itself so that the body parts flanking the clasp are placed in abutment against the edges of the clasp. opening intended to receive it. The alignment (ie the superimposition) of the clasp and the opening to close the device is facilitated by the flat character and without protruding elements of the latter which makes it easy to slide one face on the other in order to adjust the device to the desired diameter. Once the clasp and the opening aligned, the user exerts pressure on the clasp that will cause a flexion of his foot and allow his head to penetrate the opening located opposite. The fact that the device is manipulable with one hand offers the user the ability to easily attach to a part of his body as on his other hand, independently.

The opening of the device is just as simple since it suffices to lift the clasp (s) by pulling on one of the ends of the device to unhook the latter or the openings that hold them. This ease of detachment is enabled by the fact that the end or ends that are attached to one another do not penetrate fully into one opening of the other, but only the respective clasp or clasps. As a result, the remaining portion of said end or ends can be used to pull the clasp (s) from the openings. Therefore the invention finds a particular application for attaching objects whose detachment must be able to be done quickly, including a fire extinguisher or a patient on a stretcher. The least time saved in some emergencies can be of vital importance. The invention also finds particular application as a metacarpal bracelet assisting the gripping of objects for persons with disabilities or suffering from diseases generating grip problems. Nevertheless, the invention due to its low cost of production, its fastening efficiency and its ease of attachment and detachment can be applied in many fields, such as the fixing of loads on a means of transport such as the trailer a truck, the fastening of clothes, as a belt, as a luggage attachment or as a bandage. According to a second aspect of the invention, the head of the clasp (s) points in a direction opposite to the direction of the nearest end. In other words, it points towards the center of the body. This particular direction facilitates the attachment of the device by wedging the edge of the opening between the head of the clasp and the body portion of the device flanking said clasp. Indeed, due to the tensions that result from the attachment or when additional tension is applied, for example by inserting an object between the hand and the device used as a metacarpal bracelet, the ends of the body of the device are pulled in opposite directions. Because of the winding of the device in the closed position, each end tends to get closer to the other. Therefore, in the configuration as presented, the one or more clasps of one end are pushed into the opening of the other end to which he or they are attached.

According to a third aspect of the invention, the device is made of an elastic material, and therefore deformable. This elasticity is advantageous in that it will allow the device to be energized when it is closed. This powering makes it easier to hold said device in the closed position, in particular by pressing the feet of the clasps against the edges of the openings and by deforming said openings so that they enclose said clasp feet.

According to a fourth aspect of the invention, the device can be open and closed in an unlimited manner, which does not require the user to reuse a new device for attachment of new objects. This distinguishes it from "striper" type fastening systems where a notched end is inserted completely into an opening and the device has to be cut to detach it. The invention presents as an ecological solution by its reusability.

The invention will be well understood and other aspects and advantages will become clear from reading the description which follows, given by way of example with reference to the accompanying drawings in which:

Figure 1 is a top view of an open fastening device according to the invention.

FIG. 2 is a view from above of another embodiment of an open fastening device according to the invention.

Figures 3a and 3b are two views in profile at two different angles of the previous attachment device of Figure 1 as closed.

Figure 4 shows a set of fastening devices according to the invention. Figure 5 shows another embodiment of a set of fastening devices according to the invention.

Figure 6 shows another embodiment of a fastening device according to the invention.

In the following description, the term "understand" is synonymous with "include" and is not limiting in that it allows the presence of other elements in the attachment device. It is understood that the term "understand" includes the words "consist of". In the different figures, the same references designate identical or similar elements.

The following description presents particular embodiments of the invention. Of course these embodiments are not limiting of the invention and other variants are possible.

Reference is made first to Figure 1 which is a top view of a fastening device 1 according to the invention, unfolded so as to be represented flat. The attachment device 1 is intended to attach objects (not shown) to each other or to a part of the human body. The device comprises an elongate body, and preferably elastic, comprising a central portion 3 and two ends (5, 7). The body of the device also comprises two faces, an inner face 9 and an outer face, the inner face being intended to be in contact with the attached objects. The body of the device is similar to a ribbon and therefore has a flat character without protruding elements. As a result, the device has a symmetry according to its thickness.

The device 1 can be either in an open state (as shown in FIG. 1) or in a closed state (as shown in FIGS. 3a and 3b). The open state of the device 1 allows the user to place the device 1 around the objects to be attached and the closed state allows for it to maintain the objects attached to each other or against a part of the human body.

According to the invention, at least one clasp January 1 is cut within at least one of the ends (5, 7) of the body by a notch passing through the thickness of said end, so that said clasp (s) 1 1 are framed by the edges of the end (5, 7) in which they are cut. Said clasp (s) 1 1 each comprise a head 15 with a top and a foot 17, the foot 17 being of width less than the width of the head 15 and connecting the clasp 1 1 to one of the ends (5, 7) of the body of the device 1. At least one end (5, 7) has at least one opening 13 for receiving said or at least one of said clasps 1 1 of the other end (5, 7) for closure of the fastening device. Of course, because of the configuration of the fastening device 1 of the invention, at least two devices 1 can be attached together by at least one end, making it possible to adapt the fastening diameter of the set of devices 1 to objects to attach. For this purpose a clasp 11 of a device 1 is attached to an opening 13 of another device 1. Preferably, said clasp 1 1 and said end 13 are each positioned at the end of one end (5, 7) of the respective body of each device 1.

In the embodiment shown below and visible in Figures 1, 3a and 3b, the fastening device comprises a clasp at each end and several openings. This embodiment is particularly suitable for use as a metacarpal bracelet, for the reasons given below. Of course the device of the invention corresponding to this embodiment can be used in other areas. According to one embodiment of the invention, the head 15 of the clasps 1 1 is adapted to ensure the closing safety of the device 1 of the invention. For this purpose and as shown in FIG. 1, the head 15 of the clasps 1 1 has a semi-elliptical shape and the foot 17 of the clasps 1 1 has, at its connection with the head 15, at least one notch (19 , 21) for hooking the edge of the opening 13 or one of the openings 13 when said head 15 is inserted into said opening 13 for the closure of the attachment device 1. It should be noted that the shape of the head 15 can also be ovoid, semicircular or rhomboidal.

Thus, securing the closure of the device 1 is provided both by the notches (19, 21) and the flanks and the top of the head 15 of each clasp January 1. This is particularly the case of the clasps 1 1 penetrating into an opening 13 along the outer face of one end (5, 7), as will be discussed later.

Preferably the length of the head 15 is greater than the length of the foot 17 of a clasp January 1 according to the length of the body, to ensure a good grip of the notch or notches (19, 21) on the edges of one of the openings 13.

In order to ensure that the fastener or clasps 1 1 are securely held in the opening or openings 13, the latter or these are oriented so that their foot 17 is parallel to the longitudinal direction of the device 1. According to one embodiment of the invention, the curved endings of the notch forming a clasp January 1 are adapted to limit the risk of tearing of the connection between the foot 17 of the clasp January 1 and the end (5, 7) in which the clasp January 1 is cut. Indeed, the device is destined to be tensioned and the presence of a notch in an elastic material is known to present tear risks during such tensioning. For this purpose, and as it is visible in FIG. 1, at least one end of at least one cut forming a clasp January 1 has a perforation (31, 33) of circular shape so as to form at least one of the edges of the foot 17 of said clasp 1 1 and the or notches (19, 21) associated. The perforation or perforations (31, 33) may also have an elliptical or ovoid shape. Thus, at least one end of each notch has no points of weakness or rupture, limiting the risk of tearing at the connection between the foot of a clasp and the end in which the clasp is cut.

According to another preferred embodiment of the invention, the shape of the parts of the ends (5, 7) comprising either an opening 13 or a clasp January 1 is chosen so as to reduce the risk of discomfort and injury to users carrying the device 1 or manipulating it. For this purpose, and as shown in Figure 1, these portions of the ends (5, 7) have an elliptical shape. Said parts of these ends may also have a circular shape. Therefore, these parts having no projecting edge ensure a pleasant feeling when gripping and limit the risk of injury, for example when placing the device on a body part. On the other hand, this particular shape makes it possible to better differentiate and to better grasp the elements allowing closure of the device 1. It should be noted that these particular shapes make it possible to increase the elasticity of the device without reducing its resistance to tension.

According to a preferred embodiment, the distribution of the openings is adapted to facilitate the adaptation of the closure of the device 1 to various sizes of objects to be fixed. For this purpose and as shown in Figure 1, the openings 13 are also distributed over the central portion 3 of the body of the device and are not limited to its two ends (5, 7). Preferably, the openings are uniformly distributed along the body so as to facilitate the possibilities of adaptation to the size of the objects.

When several clasps are present on at least one end, they can be aligned along the length and / or width of the body. Of course, the other end comprises at least one opening allowing each clasp of one end to enter an opening of the other end. Turning now to Figure 2 which presents another embodiment of the invention. In this embodiment, at least one of the ends (5, 7) comprises an opening 13 at the end of the end (5, 7) or at each end (5, 7) and said opening or openings 13 are preceded by a clasp 1 1. This or these openings 13 represent a gripping means of the end (5, 7) in which they are each present, to facilitate the detachment of said clasp 1 1 which precedes respectively. The user can then pull on the end (5, 7) comprising said clasp January 1 by entering a single finger in said opening 13 at the end of the end (5, 7), acting as a gripping ring and giving it more withdrawal force than if he had to grasp the edges surrounding said clasp 1 1.

Returning to FIGS. 3a and 3b showing the attachment device 1 in the closed state, it can be seen that, in the closed state, the device 1 is wound on itself so that one of the ends passes above each other. Therefore the closure of the device is provided by a different direction of penetration between the clasp or clasps 1 1 of one end 5 and that or those of the other end 7. In Figures 3a and 3b, it is clearly visible that a first clasp 1 1 penetrates an opening 13 of one end 5 according to its inner face 9, while a second clasp 1 1 penetrates an opening 13 of the other end 7 according to its outer face 23.

It should be noted that when the device comprises only one clasp on one end, the user will have the advantage that the clasp penetrates an opening of the other end along the outer face of the device.

By this fastening configuration clasps 1 1, when the device 1 is in the closed state, the head 15 of the clasp 1 1 penetrating an opening 13 according to the outer face 23 is found sandwiched between at least one attached object and the edges of the inner face of the end including said opening 13, reinforcing the stability of the closure of the device. In this configuration, both the notches (19, 21) and the top and the flanks of the head 15 participate in maintaining the clasp 1 1 in the opening 13.

The head 15 of at least one of the clasps 1 1 being wedged against at least one fixed object, any traction applied to the device 1 will all the more the latter against said fixed object or objects, limiting the chances that it does not Thus, the penetration of one or more clasps 15 into an opening 13 of one face by its outer face 23 provides additional security of the attachment of the device 1. In order to accentuate the security of fastening the clasps in the openings, the device may comprise at least one passage (not shown) intended to grip at least one clasp January 1 end 5 and at least one opening 13 of the other end 7 by sliding along the body, when said one or more clasps 11 are respectively passed through said opening or openings 13. In this way, the head 15 or clasps 1 1 is blocked in the loop.

According to a preferred embodiment of the invention, the top of the head 15 of at least one clasp January 1 points towards the center of the body. It can be seen in Figure 3b that in this particular configuration, the foot 17 of the clasp January 1 will form a "bend" 25 with the end 5 of the body that carries it.

When a traction applied to the device in the closed state, the two ends (5, 7) will be pulled in opposite directions causing them to come closer to one another due to the winding of the device. Consequently, by the direction of the head 15 of this clasp January 1, traction on the device will cause greater penetration of the latter in the opening 13, until the "bent" portion 27 is found entirely in contact with an edge 27 of the opening 13. Thus, the more the device 1 undergone high stretching tensions, the more this configuration of the clasps 1 1 leads to a better closure. Therefore, the detachment resistance of the clasps is also provided by the "bent" portion 25 at the foot 17 clasps 1 1, reinforcing the tensile strength.

It should be noted, on the other hand, that the width of the openings 13 intended to receive the clasp (s) 1 1 is less than or equal to the width of the head 15 of the clasp (s) 1 1. Preferably, the two widths are equal. When the two widths are equal, the head of a clasp penetrates without constraint within an opening 13, the elasticity of the body ensuring that the head 15 moves in the opening 13 and are locked against a from its edges. The output of the clasp 1 1 is just as easy. The use of the device 1 of the invention is thus facilitated.

According to another preferred embodiment of the invention, the shape of the device 1 is chosen so as to have no sense of use. For this purpose and as it is visible in Figures 1, 3a and 3b, the device 1 has an axial symmetry along a transverse axis and / or a longitudinal axis. In this way, the user does not have to worry about the direction of grip of the device, facilitating its use. It should be noted that the clasps have no predefined direction of penetration, they can also penetrate the openings according to the outer and inner face of the other end. This is made possible by the fact that on the one hand the device is symmetrical according to the thickness of the device and, on the other hand, that the clasps 11 are formed by a notch crossing the thickness of the body. This cutting gives a mobility to the foot 17 of the clasps 1 1 which can be moved both on the side of the outer face 23 inside 9 of the end (5, 7) in which each clasp January 1 is cut. Thus, the use of the device is facilitated. According to a preferred embodiment of the invention, all the components of the attachment device 1 are made of material. The device 1 being made of elastic material, it has less risk of breakage and better tensile strength. Production costs are also reduced. According to another preferred embodiment of the invention, the body of the device is formed of a plastic material having elastic properties, preferably an elastomer selected from a terpolymer of ethylene propylene and a diene (EPDM) or a Thermoplastic elastomer (TPE) or rubber. The shape of the openings 13 is chosen so as to limit the detachment of the clasps 1 1. For this purpose, the openings have an elliptical shape, ovoid, circular or rhomboidal, preferably of shape similar to the shape of the clasp head. In Figures 1, 3a and 3b, it is an elliptical shape is shown. When traction is applied to the device 1, by its elasticity, the body will be stretched in the direction of its length, decreasing the size of the openings 13 according to the width of the latter and thus enclosing the clasps 1 January.

Turning now to Figure 4 which shows a fastening system 29 comprising several fastening devices 1 as previously described. These attachment devices can be linked together by their edge over at least a portion of their length through at least one connecting means such as a staple, or using a bonding. The attachment devices 1 are preferably integrally formed by their wafer over at least a part of their length, as shown in FIG. 4. As a result, the end portions comprising a clasp 1 1 of one of the devices 1 may be connected to or unrelated to another of the devices 1, as shown in FIG. 4. It should be noted that by the elastic material used for the manufacture of the body of the devices 1, the connection between two devices 1 may be easily cut, using a chisel for example, to in order to adapt the mobility of each device 1 of the fastening system relative to the other devices 1 as needed.

Such a fastening system 29 thus forms a fastening net, making it possible to fix bulky objects efficiently between them. Such a system can be used for example as a tarpaulin or load retaining net.

Another embodiment is shown in FIG. 5. In this embodiment, at least one device 1 is integral with the other attachment devices 1 linked together by their wafer and said device or devices 1 are positioned perpendicularly. relative to said other devices 1 so that at least two perpendicular edges of the fastening system 29 at the end comprise at least one clasp January 1. In this configuration, the fastening system can be closed in two closing directions perpendicular to each other, to enclose the attached objects. In the example shown in FIG. 5, all the edges comprise at the end clasps 1 1, which makes it possible to maximize the number of clasp fasteners 11.

Referring now to Figure 6 which shows another particular embodiment of a fastening device 1 of the invention in the open state in top view. As can be seen in this figure clasps January 1 and openings 13 are alternately distributed along each end (5, 7). This embodiment makes it possible to adapt the number of closure according to the resistance requirements of the device. It is therefore not necessary to increase the number of devices 1 to secure the maintenance between them thereof. Of course, each end (5, 7) may comprise clasps January 1 and openings 13 divided two by two, three by three, etc.

The present invention also relates to a use of an attachment device as previously described as a metacarpal bracelet.

Claims

claims

1. Fastening device (1) for attaching objects to one another or to a part of the human body, said device having an elongated body comprising a central portion

(3) and two ends (5, 7);

said device having at least one clasp (1 1) cut in at least one of the ends (5, 7) of the body by a cut through the thickness of said end, so that said clasp (s) (1 1) are framed by the edges of the end (5, 7) in which they are cut, said one or more clasps (1 1) each comprising a head (15) with a top and a foot (17), the foot (17) being of width less than the width of the head (15);

the device being configured so that the end (5, 7) opposite to that having at least one clasp, or both ends (5, 7) each comprising at least one clasp (1 1) have at least one opening (13) for receiving said or at least one of said clasps (1 1) from the other end (5, 7) for closure of the fastening device (1);

the device being characterized in that the foot (17) of said one or more clasps (1 1) has, at its connection with the head (15), at least one notch (19, 21) intended to hook the edge of the opening (13) or one of the openings (13) when said head

(15) is inserted into said opening (13) for closure of the attachment device (1); and

in that at least one end of at least one cut forming a clasp (1 1) has a perforation (31, 33), so as to form at least one of the edges of the foot (17) of said clasp (1 1) and the associated one or more notches (19, 21).

2. Fastening device (1) according to claim 1, characterized in that the head (15) of at least one clasp (1 1) has an ovoid shape, semi-circular, semi-elliptical or rhomboidal.

3. Fastening device (1) according to claim 1 or 2, characterized in that each of the ends (5, 7) of the device has at least one clasp (1 1) and at least one opening (13), said opening (13) being adapted to receive said one or one of said clasps (1 1) of the opposite end for closure of the fastening device (1).

4. Fastening device (1) according to one of claims 1 to 3, characterized in that at least one end (5, 7) has at least two clasps (1 1) aligned along the longitudinal axis of the device preferably at least one opening (13) is interposed between said clasps (1 1).

5. Fastening device (1) according to one of claims 1 to 4, characterized in that the one or more clasps (1 1) are oriented so that their foot (17) is closer to one of the ends (5, 7) of the device (1) as the top of their head (15).

6. Fastening device (1) according to one of claims 1 to 5, characterized in that the width of the opening or openings (13) for receiving the or at least one of the clasps (1 1) is less than or equal to the width of the head (15) of the clasp (s) (1 1).

7. Fastening device (1) according to one of claims 1 to 6, characterized in that the opening (13) or at least one of the openings (13) has an ovoid shape, circular, elliptical or rhomboid, of preferably of shape similar to the shape of the head (15) or clasps (1 1) for the penetrate or.

8. Fastening device (1) according to one of claims 1 to 7, characterized in that the device further comprises at least one passer intended to grip at least one clasp of one end and at least one opening ( 13) at the other end by sliding along the body, when said one or more clasps (1 1) are respectively passed through said opening or openings (13).

9. Fastening device (1) according to one of claims 1 to 8, characterized in that the device (1) has an axial symmetry along a transverse axis and / or along a longitudinal axis.

10. Fastening device (1) according to one of claims 1 to 9, characterized in that the device (1) is made of an elastic material, preferably an elastomer selected from a terpolymer of ethylene propylene and a diene (EPDM) or a thermoplastic elastomer (TPE) or a rubber.

1 1. Fastening device according to one of claims 1 to 10, characterized in that at least one end has at least two clasps (1 1) aligned along the width of the device.

12. Fastening device according to one of claims 1 to 1 1, characterized in that the or clasps are oriented so that their foot is closer to the ends of the device than the top of their head.

13. Fastening device according to one of claims 1 to 12, characterized in that said device is a metacarpal bracelet.

14. Fastening system comprising at least two fastening devices according to one of claims 1 to 12, the two fastening devices being interconnected by their edge over at least a part of their length; preferably, the two attachment devices are made of material.

The fastening system of claim 14, wherein said system is a tarpaulin or load retaining net.