WO2019150059A2

WO2019150059A2 - Boundary establishing system comprising two main connectors

Info

Publication number: WO2019150059A2
Application number: PCT/FR2019/050248
Authority: WO
Inventors: Ning Xie; Antoine CULLIER
Original assignee: Decathlon
Priority date: 2018-02-05
Filing date: 2019-02-05
Publication date: 2019-08-08
Also published as: WO2019150059A3

Abstract

The invention relates to a boundary establishing system (100) comprising a first main connector (102) designed to connect first (10), second (20), third (30) and fourth (40) connecting elements to each other, a second main connector (104) designed to connect fifth (50), sixth (60), seventh (70) and eighth (80) connecting elements to each other, a first bow (4) with a first fastening section (138), a second bow (6) with a second fastening section (140), a first auxiliary connector (130) designed to connect the first and sixth connecting elements and the first bow to each other, a second auxiliary connector (132) designed to connect the second and fifth connecting elements and the second bow to each other, and a link (8) that extends between the fastening sections, the first and second main connectors respectively extending on either side of a vertical plane (P) running through the link.

Description

DELIMITATION INSTALLATION COMPRISING TWO

MAIN CONNECTORS

Background of the invention

The present invention relates to the field of sports equipment playing on a playground, including snowshoe sports.

The invention more specifically relates to a delimiting installation intended to be deployed on the ground and to share two playgrounds.

It is particularly applicable to the practice of snowshoe sports outdoors, especially in gardens or parks in urban areas, where users rarely have a garden for the practice of snowshoeing.

The delimiting installation according to the invention must be easily transportable and be assembled or dismounted quickly, while remaining stable enough to ensure a comfortable practice of the sport on a rough ground or outside in case of light breeze.

It is known demountable delimiting facilities such as that presented in EP 0 595 815, consisting of two amounts, between which extends a net. The amounts are respectively connected to two connectors extending substantially in the plane of the net. Two legs extend on either side of each connector to keep the installation on the ground.

A disadvantage is that this type of installation is particularly bulky, in the use position, because of the legs extending transversely to the plane of the net, from the ends of said net.

In addition, the legs must be particularly strong to support the entire installation. Therefore, the weight of the installation is particularly important which makes it difficult to transport, once folded.

In addition, this type of installation is generally too expensive. Object and summary of the invention

An object of the present invention is to provide a delimiting installation for playgrounds overcoming the aforementioned drawbacks. The invention is in particular to reduce the size of the installation and manufacturing costs. Inseparably, the installation of delimitation must have great stability to allow the practice of the sport on a rough ground or outside in case of light breeze.

To do this, the invention relates to a delimiting facility for sharing two play areas, comprising:

A first main connector configured to connect together a first link element, a second link element, a third link element and a fourth link element;

A second main connector configured to connect between them a fifth link element, a sixth link element, a seventh link element and an eighth link element;

A first arch and a second arch respectively comprising a first fixing portion and a second fixing portion;

A first secondary connector configured to connect the first link element, the sixth link element and the first hoop together;

A second secondary connector configured to connect between them the second connecting element, the fifth connecting element and the second arch;

A link extending above the ground between said attachment portions of the first and second hoops,

the first and second main connectors extending on either side of a vertical plane passing through the link.

The main and secondary connectors connect the connecting elements and the arches removably. Also, the installation according to the invention can be placed in an extended position, in which it rests on the ground and allows the practice of snowshoeing, and a folded position in which it can be stored and moved easily.

In a nonlimiting manner, to place the installation in the deployed position, the user connects the connecting elements to the associated main connectors. The user then connects between them the first and sixth connecting elements and the first arch, by means of the first secondary connector. It also connects between them the second and fifth connecting elements as well as the second arch, at second secondary connector. The assembly consisting of the connecting elements and the main and secondary connectors constitutes a base configured to support the two arches. The user can then establish the link between the attachment portions of the first and second hoops.

Preferably, but in a nonlimiting manner, the first and second hoops are flexible so that the attachment of the link to the fixing portions of the hoops makes it possible to jointly tension the hoops and the link so as to deploy the installation on the ground . The arches are thus maintained in tension, in an arched position towards the sky, by the link. Conversely, the arches maintain the link stretched substantially horizontally between the two fixing parts. The delimiting installation according to the invention can therefore be installed very quickly, without specific tools.

It is understood that the plane passing through the link is vertical when the installation is placed in the deployed position and rests on the ground. One advantage of this configuration is to improve the stability of the installation considered in a direction transverse to said plane.

In addition, it could be envisaged a variant in which one or more connecting elements extend from one of the main connectors so as to rest on the ground, to form a base to support the installation. In this variant, the main connectors transversely reinforce the installation and make it possible to improve its stability.

The connecting elements are preferably rigid.

The main connectors extending on either side of the vertical plane passing through the link, the lateral size of the installation, considered in this plan, is particularly reduced.

Preferably, but in a nonlimiting manner, the first and second main connectors extend on either side of said vertical plane passing through the link, symmetrically with respect to this plane. This symmetry improves the balance and therefore the stability of the installation.

To place the installation in the folded position, the user releases the link, disconnects the arches of the secondary connectors and the connecting elements of the main and secondary connectors. Each of the connecting elements can be isolated and stored independently, to improve the compactness of the installation once folded. Without limitation, the connecting elements and connectors can be placed in a storage bag to be transported. Preferably, the first and second main connectors are configured to rest on the ground, whereby these connectors are contact points of the installation with the ground disposed on either side of the vertical plane passing through the link. These connectors prevent the installation from switching in a direction transverse to said plane, for example when a user strikes the installation. The transverse stability of the installation is thus improved.

Preferably, the connecting elements are substantially identical. In this way, all the connecting elements have substantially the same dimensions. An interest is to allow the use of a single mold to manufacture all the connecting elements and thus reduce manufacturing costs. In addition, the connecting elements can be interchanged indifferently, which facilitates the installation and deployment of the installation.

Advantageously, the third, fourth, seventh and eighth connecting elements are configured to rest on the ground. Of interest is that these connecting elements form a base to support the installation and stabilize. In a nonlimiting manner, these connecting elements, resting on the ground, can be ballasted or fixed to the ground by means of tent pegs, possibly U-shaped, in order to further improve the stability of the installation according to the invention. 'invention.

Advantageously, the third, fourth, seventh and eighth connecting elements are rods each having at least one end.

These rods have transverse dimensions substantially less than their lengths. Without limitation, they can be made of fiberglass or plastic.

According to an advantageous variant, the first ends of the fourth and seventh connecting elements are connected to each other by a first connecting piece, and the first ends of the third and eighth connecting elements are connected to each other by a second connecting piece.

Therefore, in this variant, the third connecting element extends between the first main connector and the second connecting piece. The fourth connecting element extends between the first main connector and the first connecting piece. The seventh connecting element extends between the second main connector and the first connecting piece. The eighth connecting element extends between the second main connector and the second connecting piece. These third, fourth, seventh and eighth connecting elements, as well as the two main connectors and the two connecting pieces together form a closed structure.

The vertical plane passing through the link preferably also passes through the first and second connecting pieces. Advantageously, but not limitatively, the vertical plane passing through the link constitutes a plane of symmetry for the installation, which reinforces the equilibrium of said installation.

According to a non-limiting embodiment, the third connecting element and the seventh connecting element are substantially parallel, and the fourth and eighth connecting elements are substantially parallel. Also, the third, fourth, seventh and eighth connecting elements form a parallelogram. In addition, when they rest on the ground to form a base, these linking elements arranged in parallelogram ensure the balance of the installation and prevent it from tipping in one or the other direction.

According to a particularly advantageous aspect of the invention, the first, second, fifth and sixth connecting elements are inclined with respect to a plane passing through the third and seventh connecting elements. Advantageously, this plane passing through the third and seventh connecting elements is substantially horizontal, when the installation is placed in the deployed position, so that the first, second, fifth and sixth connecting elements are inclined with respect to the horizontal, to the top. The first and sixth connecting elements constitute means for supporting the first arch and the second and fifth connecting elements constitute support means for the second arch.

Preferably, the first, second, fifth and sixth connecting elements are inclined with respect to said plane by an angle of between 15 ° and 45 °. This inclination is chosen so as to obtain a height of the link relative to the ground adapted to the practice of snowshoeing. This inclination is selected in particular according to the length of the arches.

Advantageously, the first main connector comprises a first upper opening, a second upper opening, a first lower opening and a second lower opening configured to receive respectively the first, second, third and fourth connecting elements. Advantageously, the second main connector has a first upper opening, a second upper opening, a first lower opening and a second lower opening configured to receive respectively the fifth, sixth, seventh and eighth connecting elements. Also, by inserting a connecting element in an opening of one of the main connectors, said connecting element is secured to said connector. The inclination of the opening conditions the inclination of the connecting element inserted in said opening.

For example, the inclination between the first upper opening and the second lower opening of the first main connector is the same as the inclination between the first connecting element and the fourth connecting element. Similarly, the inclination between the second upper opening and the first lower opening of the first main connector is the same as the inclination between the second and third connecting elements.

The terms "lower" and "higher" are to be considered in a substantially vertical direction.

Advantageously, the lower openings of the main connectors are arranged substantially horizontally so that the third, fourth, seventh, and eighth connecting elements extend substantially in a horizontal plane. In addition, the upper openings of the main connectors are inclined relative to the lower openings, so that the first, second fifth and sixth connecting elements are inclined relative to the horizontal.

Preferably, the connecting elements and the hoops are disengageably connected to the main and secondary connectors. An advantage is to allow to deploy and fold the installation very easily while increasing the compactness of the installation once folded.

Preferably, the first secondary connector and the first and sixth connecting elements are connected by a first elastic means making it possible to keep them connected when they are disengaged, and the second secondary connector and the second and fifth connecting elements are connected by a second elastic means for keeping them connected when they are disengaged. An interest is to facilitate the nesting of the secondary connectors and associated connecting elements to simplify the deployment of the installation. In addition, this makes it possible to avoid mislaying a connecting element or a secondary connector when the installation is in operation. folded position. Assembly and disassembly operations are thus facilitated.

Advantageously, the first connecting piece and the fourth and seventh connecting elements are connected by a first elastic member for holding them in connection when they are disengaged, and the second connecting piece and the third and eighth connecting elements are connected by a second elastic member for holding them in connection when they are disengaged. Again, an interest is to facilitate the assembly and disassembly of the installation.

Preferably, the first, third, fourth and eighth connecting elements form a rhombus. It is understood that the first, third, fourth and seventh connecting elements are then of the same length. One advantage is that in this configuration, the vertical plane passing through the link constitutes a plane of symmetry for the diamond, so that the main connectors are arranged symmetrically with respect to this plane. Here again, the balance of the installation is strengthened. In addition, since the distance between the main connectors and the vertical plane is relatively small, the first, third, fourth and eighth connecting elements extend only slightly in the playgrounds defined by the installation. The overall size of the installation in the deployed position is reduced.

Preferably, the link is a net. The interest is to be able to properly practice a snowshoe sport and especially to know for sure if the ball or the wheel is well over the link.

Brief description of the drawings

The invention will be better understood on reading the following description of an embodiment of the invention given by way of non-limiting example, with reference to the appended drawings, in which:

FIG. 1 illustrates a delimiting installation, according to the invention, intended to share two play areas;

FIG. 2 illustrates a main connector of the installation of FIG. 1;

- Figure 3 illustrates a connecting part of the installation of Figure i;

- Figure 4 illustrates the installation of Figure 1 in front view;

- Figure 5 illustrates the installation of Figure 1 in profile view; and - Figure 6 illustrates the installation of Figure 1 in top view. Detailed description of the invention

In Figure 1, there is illustrated an exemplary delimiting installation 100 according to the invention for sharing two playing areas of a sport, including snowshoes. Such an installation is particularly adapted to the practice of badminton outdoors. This installation can be placed in an extended position in which it rests on the ground and allows the practice of sport and a folded position in which it is stored and can be moved. The installation comprises a base 2, a first arch 4, a second arch 6 and a link 8 extending between the two arches.

The base consists of a first 10, a second 20, a third 30, a fourth 40, a fifth 50, a sixth 60, a seventh 70 and an eighth 80 connecting elements, as well as a first main connector 102, a second main connector 104, a first connecting piece 120 and a second connecting piece 122.

In this example, the connecting elements are tent rods type rods that can be fiberglass or plastic. These rods are substantially identical so that their diameters and their lengths are similar. The first connecting element 10 has a first end 10a and a second end 10b, opposite the first end. Similarly, each of the connecting elements has a first end and a second end opposite the first end. For legibility issues, these ends are not referenced in the figures.

As seen in Figure 1, the first main connector 102 and the second main connector 104 are configured to rest on the floor. In this non-limiting example, the first main connector 102 and the second main connector 104 are identical.

An example of a first main connector 102 is given in FIG. 2. This main connector 102 is a molded part comprising a first sleeve 106, a second sleeve 108, a third sleeve 110 and a fourth sleeve 112. Each of these sleeves comprises an axis. The axes of the sleeves meet at a connection point 114. The third 110 and fourth 112 sleeves are configured to rest on the ground and extend in a plane Q substantially parallel to the ground, when the installation 100 is placed in the deployed position . Considered in said plan Q, the third and fourth sleeves 110, 112 form an obtuse angle whose point coincides with the point of connection 114.

The first sleeve 106 and the fourth sleeve 112 are substantially coplanar, in a substantially vertical first plane, when the installation 100 is in the deployed position. Furthermore, considered in said plane, the first sleeve 106 is inclined with respect to the fourth sleeve 112, and therefore with respect to the horizontal, upwards, by an angle a between 15 ° and 45 °, preferably between 25 ° and 35 °.

Similarly, the second sleeve 108 and the third sleeve 110 are substantially coplanar in a second substantially vertical plane, when the installation 100 is in the deployed position. In addition, considered in said plane, the third sleeve 108 is inclined relative to the first sleeve 110, and therefore with respect to the horizontal, upwards, of an angle b between 15 ° and 45 °, preferably between 25 ° and 35 °.

A first upper opening 102a, a second upper opening 102b, a first lower opening 102c and a second lower opening 102d are provided respectively in the first, second, third and fourth sleeves 106, 108, 110, 112. These openings are configured to receive respectively the second ends of the first 10, second 20, third 30 and fourth 40 connecting elements.

As can be seen in FIG. 1, to place the installation 100 in the deployed position, the user inserts the second ends of the connecting elements into the corresponding openings of the main connectors 102, 104.

The connecting elements being, in this example, all identical and in the form of rods, they can be inverted and returned freely to be assembled to the main connectors in any direction. In this way, the user does not encounter any difficulty to connect the connecting elements to the main connectors and assembly of the installation is facilitated.

Without limitation, the first main connector 102 and the second main connector 104 are substantially identical so that they can also be freely interchanged. The second main connector 104 has the same characteristics as the first main connector 102, so it will not be described in detail. This second main connector 104 also has a first upper opening, a second upper aperture, a first lower aperture and a second lower aperture, configured to respectively receive the fifth, sixth, sixth, seventh, and eighth webs.

The inclination of the first and second sleeves 106, 108 relative to the fourth and third sleeves 112, 110 of the first main connector 102 conditions the inclination of the first and second connecting elements 10, 20 relative to the horizontal. Also, the second connecting element 20 is also inclined at an angle b between 15 ° and 45 ° relative to the third connecting element 30 and relative to the horizontal plane Q. Likewise, the first connecting element 10 is also inclined at an angle α between 15 ° and 45 ° relative to the fourth connecting element 40 and relative to the horizontal plane Q.

Similarly, the inclination of the first and second sleeves of the second main connector 104 conditions the inclination of the fifth and sixth connecting elements 50,60 relative to the horizontal. Also, the fifth connecting element 50 is also inclined at an angle of between 15 ° and 45 ° with respect to the eighth connecting element 80. Similarly, the sixth connecting element 60 is inclined at an angle of between 15 ° and 45 ° with respect to the seventh connecting element 70.

Furthermore, an example of connecting piece 120,122 is given in FIG. 3. This connecting piece comprises a first sleeve 126 and a second sleeve 128 each comprising an axis. The axes of these sleeves form an acute angle, substantially equal to 40 °. A first opening 120a and a second opening 120b are formed respectively in the first sleeve 126 and in the second sleeve 128. This connecting piece 120,122 further comprises a third sleeve 129, opposite the two other sleeves 126,128 and having an axis forming a bisector the angle between the axes of the two other sleeves 126,128. A third opening 120c is also provided in this third sleeve 129. The first and second openings 120a, 120b are configured to receive the first end of a connecting member. The first connecting piece 120 and the second connecting piece 122 are substantially identical.

Referring again to FIG. 1, it can be seen that the first connecting piece 120 connects the fourth and seventh connecting elements 40, 70 together. The second connecting piece 122 connects between them the third and eighth connecting members 30,80. The connecting pieces 120, 122 are configured to rest on the ground.

In this example, the third 30, fourth 40, seventh 70 and eighth 80 connecting elements are coplanar, in the plane Q, and rest on the ground, so as to form a substantially horizontal base. In addition, the main connectors 102, 104 and the connecting pieces 120, 122 are configured so that the third connecting element 30 is substantially parallel to the seventh connecting element 70 and the fourth connecting element 40 is substantially parallel to the eighth connecting element 80. In addition, without limitation, all of these four connecting elements acts as a diamond-shaped base. These connecting elements ensure the stability of the installation.

Furthermore, the installation also comprises a first secondary connector 130 and a second secondary connector 132 for connecting the hoops 4,6 to the base 2. In this nonlimiting example, the secondary connectors 130,132 are substantially identical to the first and second connecting parts 120,122 and also comprise three sleeves, each having an axis, in which are formed openings. The secondary connectors therefore also have three openings.

The first secondary connector 130 interconnects the first connecting element 10, the sixth connecting element 60 and the first arch 4. In particular, a first end 41 of the first arch 4 is introduced into the third opening of the first secondary connector. The second secondary connector 132 connects between them the second connecting element 20, the fifth connecting element 50 and the second arch 6. Similarly, a first end 61 of the second arch 6 is introduced into the third opening of the second secondary connector 132.

FIG. 4 illustrates a front view of the installation according to the invention. In this figure, it can be seen that the two arches 4,6 are spaced apart, inclined towards one another and extend upwards from the first and second secondary connectors 130, 132. The first and second arches 4,6 respectively comprise a first attachment portion 138 and a second attachment portion 140.

In this nonlimiting example, the first arch 4 and the second arch 6 each consist of a lower segment 4a, 6a and a upper segment 4b, 6b interconnected via a connecting means 11,13.

Furthermore, the link 8 extends between the two arches 4,6 and more precisely between the two attachment parts 138,140. These attachment portions are located in the free ends 42,62 of the arches 4,6, opposite to the first ends 41,61 of the arches. In a nonlimiting manner, the attachment can be carried out by inserting the free ends 42, 62 of the arches 4,6 in sleeves 142, 144 disposed on either side of the link 8.

In this example, the link 8 is a net that extends between the two fastener portions 138,140. The net 8 keeps the two arches 4,6 in tension, arched convexly ascending. Conversely the hoops maintain the net in horizontal tension between the two fastening parts 138,140.

Figure 5 shows the installation 100 in profile view, while Figure 6 shows the installation 100 in top view. In these figures, it is found that the first main connector 102 and the second main connector 104 extend on either side of a vertical plane P, passing through the thread 8. Moreover, the plane P passes through the connectors secondary 130,132 and the connecting pieces 120,122.

The main connectors 102, 104 are arranged substantially symmetrically with respect to this plane P. The distance separating this plane P from each of the main connectors 102, 104 is substantially equal to half the length of a connecting element 10, 20, 30, 40,50,60,70,80. This distance is relatively small so that the base extends only slightly inside the two playgrounds defined by the installation. In addition, considered in projection in the vertical plane P passing through the net, the main connectors are disposed substantially at half the length of the net.

The plane P furthermore constitutes a plane of symmetry for the delimiting installation 100 and in particular for the base 2. In particular, it can be seen that the plane P constitutes a plane of symmetry for the diamond-shaped base constituted by the third 30 , fourth 40, seventh 70 and eighth 80 connecting elements. In particular, the intersection between the plane P and the plane Q in which the third 30, fourth 40, seventh 70 and eighth 80 connecting elements extend substantially constitutes a diagonal of the rhombus formed by these connecting elements. Without limitation, the connecting elements 10,20,30,40,50,60,70,80 are connected to the main connectors 102,104, the connecting pieces 120,122 and the secondary connectors 130,132 disengageably. In this way, the user can place the installation in the folded position easily and the compactness of the installation, once folded, is improved. It is appropriate to fold the installation 100 to release the ends of the connecting elements so as to disconnect them from each of the connectors and connecting pieces. The user then disconnects the lower segments 4a, 4b and the upper segments 6a, 6b of the connecting means 11, 13.

Furthermore, the first secondary connector 130 and the first 10 and sixth 60 connecting elements can be connected by a first elastic means for holding them connected when they are disengaged. Similarly, the second secondary connector 132 and the second 20 and fifth 50 connecting elements may be connected by a second resilient means for holding them connected when they are disengaged. In addition, the first connecting piece 120 and the fourth 40 and seventh 70 connecting elements are connected by a first resilient member to keep them connected when they are disengaged. The second connecting piece 122 and the third 30 and eighth 80 connecting elements are connected by a second elastic member to hold them connected when they are disengaged. Thanks to these means and elastic members, the connecting elements and connectors or connecting pieces fit easily and it is not possible to misplace them. The assembly and disassembly operations are therefore very simple.

Claims

A delimitation facility (100) for sharing two play areas, comprising:

A first main connector (102) configured to connect together a first link member (10), a second link member (20), a third link member (30), and a fourth link member (40);

A second main connector (104) configured to connect together a fifth link member (50), a sixth link member (60), a seventh link member (70), and an eighth link member (80);

A first arch (4) and a second arch (6) respectively comprising a first fixing portion (138) and a second fixing portion (140);

A first secondary connector (130) configured to interconnect the first connecting element (10), the sixth connecting element (60) and the first arch (4);

A second secondary connector (132) configured to interconnect the second connecting element (20), the fifth connecting element (50) and the second arch (6);

A link (8) extending above the ground between said attachment portions of the first and second hoops,

the first and second main connectors (102, 104) extending on either side of a vertical plane (P) passing through the link.

The plant of claim 1, wherein the first and second main connectors (102, 104) are configured to rest on the ground.

3. Installation according to claim 1 or 2, wherein the third (30), fourth (40), seventh (70) and eighth (80) connecting elements are configured to rest on the ground.

4. Installation according to any one of claims 1 to 3, the connecting elements are substantially identical.

5. Installation according to any one of claims 1 to 4, wherein the third (30), fourth (40), seventh (70) and eighth (80) connecting elements are rods each having at least one end ( 10a).

6. Installation according to claim 5, wherein the first ends of the fourth (40) and seventh (70) connecting elements are connected to each other by a first connecting piece (120), and wherein the first ends of the third (30) ) and eighth (80) connecting elements are interconnected by a second connecting piece (122).

7. Installation according to claim 5 or 6, wherein the third connecting element (30) and the seventh connecting element (70) are substantially parallel, and wherein the fourth (40) and the eighth (80) connecting elements are substantially parallel.

8. Installation according to any one of claims 1 to 7, wherein the first (10), second (20), fifth (50) and sixth (60) connecting elements are inclined relative to a plane (Q) passing by the third (30) and seventh (70) connecting elements.

9. Installation according to claim 8, wherein the first (10), second (20), fifth (50) and sixth (60) connecting elements are inclined relative to said plane (Q) of an angle (b, a). ) between

15 ° and 45 °.

An installation according to any one of claims 1 to 9, wherein the first main connector (102) has a first upper opening (102a), a second upper opening (102b), a first lower opening (102c) and a second lower aperture (102d) configured to respectively receive the first (10), second (20), third (30) and fourth (40) link members.

11. Installation according to any one of claims 1 to 10, wherein the second main connector (104) comprises a first upper opening, a second upper opening, a second first lower opening and a second lower opening configured to respectively receive the fifth (50), sixth (60), seventh (70) and eighth (80) connecting members.

12. Installation according to any one of claims 1 to 11, wherein the connecting elements (10,20,30,40,50,60,70,80) and the arches (4,6) are connected disengageably. to the main (102,104) and secondary (130,132) connectors.

13. Installation according to claim 12, wherein the first secondary connector (130) and the first (10) and sixth (60) connecting elements are connected by a first resilient means for holding them connected when they are disengaged, and wherein the second secondary connector (132) and the second (20) and fifth (50) connecting members are connected by a second resilient means for holding them in connection when disengaged.

14. Installation according to claim 5 and according to claim 12 or 13, wherein the first connecting piece (120) and the fourth (40) and seventh (70) connecting elements are connected by a first resilient member to maintain them in connection when they are disengaged, and wherein the second connecting piece (122) and the third (30) and eighth (80) connecting elements are connected by a second elastic member to hold them connected when they are dislocated.

15. Installation according to any one of claims 1 to 14, wherein the first (10), third (30), fourth (40) and eighth (80) connecting elements form a rhombus.

16. Installation according to any one of claims 1 to 15, wherein the link (8) is a net.