Jewel

Abstract

A modular jewel (1) comprising toroidal bodies (10) and a coupling member (30) that stably connects them; the coupling member (30) is shaped to act as functional platform for housing at least one ornamental body (3800), allowing decorative elements to be added to the space between adjacent toroidal bodies (10), selectively above the level of the toroidal bodies or between them, when the toroidal bodies (10) are arranged coplanar.

Description

[0001] JEWEL

[0002] DESCRIPTION

[0003] The present invention relates to a j ewel . In particular, the present invention relates to a modular j ewel comprising at least one toroidal body . More in detail , the present invention relates to a modular j ewel comprising a plurality of toroidal bodies connected in series by at least one coupling member .

[0004] BACKGROUND ART

[0005] In the j ewellery sector it is possible to divide rings according to their form, in the sense that speci fic forms of rings are used to communicate a particular condition of the wearer or of belonging to a community, to celebrate the achievement of training, sporting or professional results . Moreover, the wearing of rings to aesthetically enhance the fingers decorated with them, regardless of the intrinsic value of the individual pieces , has always been known .

[0006] Further, the particular structure of the rings af fects the way in which they are used, and this represents their main drawback, unlike the case of necklaces and bracelets , which can take di fferent forms based on how the structural configuration is organised, for example, by arranging them into several "turns" or " loops" , to trans form necklaces into bracelets or vice versa, based on the respective length a and on the anthropometric dimensions of the various body parts of the wearer .

[0007] For the aforesaid reasons , the problem of leaving the physical structure of a ring unchanged while giving freedom of the choice of the speci fic configuration in which to wear it, without this becoming permanent, is currently unsolved, and represents an interesting challenge for the applicant . The study of the prior part in this field has led to the discovery of some documents describing modular jewels, among which DI (WO 02 / 089630 Al) , D2 (FR 2 705 539 Al) and D3 (FR 2 770 751 Al) . However, a careful analysis of these documents reveals significant limitations.

[0008] The document DI describes a system of rings (1) connected by a coupling member (4) that provides a rigid angular constraint. However, this solution is limited to a purely mechanical connection function. The coupling member of DI is conceived solely to connect the rings and neither provides nor suggests any possibility of acting itself as a support for ornamental elements. Consequently, the space between the adjacent rings remains aesthetically empty and not enhanced.

[0009] Other documents, such as D3 (FR 2 770 751 Al) and D2 (FR 2 705 539 Al) , describe technically different approaches that are not relevant to the problem of how to decorate a coupling member in a modular chain of rings.

[0010] Therefore, the prior art offers no solution to the technical problem of how to provide a modular jewel in which the coupling member, in addition to its connecting function, is also structurally conceived to integrate an ornament, thereby enhancing the space between the toroidal elements. Consequently, the problem of how to provide a jewel that combines the modularity and the stability of a chain of rings with the possibility of specifically decorating the coupling member remains unsolved.

[0011] The object of this invention is to apply this prerogative to the field of rings, allowing the wearer to temporarily vary their form, so as to adapt it at will to a current preference, being always easy to wear and aesthetically pleasing, without altering the physical structure.

[0012] SUMMARY OF THE PRESENT INVENTION The present invention relates to a j ewel . In particular, the present invention refers to a modular j ewel comprising at least one toroidal body . More in detail , the present invention refers to a modular j ewel comprising a plurality of toroidal bodies connected in series by at least one coupling member .

[0013] The obj ect of the present invention is to overcome the limits of the prior art , providing a modular j ewel in which the coupling member between the related toroidal bodies performs a dual and innovative function, both mechanical and aesthetic, in a structure that can either be open, to produce a j ewel for adj acent fingers , or closed, to define a bracelet or necklace, but is also structurally suitable to provide a speci fic aesthetic decorative element between adj acent rings .

[0014] This obj ect is achieved by a j ewel according to claim 1 , the inventive spirit of which lies in having conceived the coupling member not as mere connector, but as an actual functional platform, provided with a seat for housing an ornamental body . This solutions allows , for the first time, the speci fic decorative element of the space between the connected toroidal bodies .

[0015] According to preferred embodiments , this function is achieved through speci fic embodiments . In a first embodiment the coupling member comprises lateral plates above and below the connection elements of the toroidal bodies , positioning the decorative element "above " the respective profile . In a further embodiment , the coupling member itsel f acts as main body, positioning the decorative element "between" the rings . Both the aesthetic ef fects are particularly evident when the connected toroidal bodies are arranged with coplanarity .

[0016] The aforesaid drawbacks are solved by the present invention according to at least one of the appended claims .

[0017] According to some embodiments of the present invention, there is implemented a coupling member extending prismatically along a longitudinal direction and provided with a first housing and with a second housing shaped to couple a pair of toroidal bodies , each of which having a first groove provided with a first cylindrical element that extends longitudinally according to said direction to engage one of said first housing and second housing; characterised by comprising a separator element placed between said first housing and second housing and having an extension measured according to said direction that approximates by default a longitudinal extension of said first cylindrical element to constrain the angular position of said toroidal bodies .

[0018] According to a possible construction variant of the present invention, a first plate and a second plate are connected at respective ends by a first C-shaped cylindrical portion and by a second C-shaped cylindrical portion with respective concavities mutually opposite ; said separator element comprising a pin arranged between said first plate and second plate .

[0019] According to a possible construction variant of the present invention, said first plate and second plate are parallel to said direction and transverse to said pin .

[0020] According to a possible construction variant of the present invention, said pin is cylindrical and has a diameter of a length that approximates by default a longitudinal extension of said first cylindrical element .

[0021] According to a possible construction variant of the present invention, at least one of said first plate and second plate has an extension along said direction that approximates by excess said diameter of said pin to encircle each said toroidal body above the corresponding said first groove .

[0022] According to a possible construction variant of the present invention, the coupling member is shaped symmetrically relative to a plane transverse to said direction .

[0023] According to a possible construction variant of the present invention, a seat shaped to house an ornamental body on the opposite side to said pin is associated with at least one of said first plate and second plate .

[0024] According to a possible construction variant of the present invention, said seat is concave and obtained in the respective said first plate or second plate or is defined through the application of an annular bead that extends on the opposite side to the corresponding end of said pin . According to a possible construction variant of the present invention, at least one of said first plate and second plate carries a prismatic body that extends parallel to said given direction and is internally hollow to house at least one said ornamental body .

[0025] According to a possible construction variant of the present invention, each of said first plate and second plate carries one said prismatic body .

[0026] According to a possible construction variant of the present invention, said first housing and second housing are contained inside respective annular bodies placed side by side and said separator element comprises a hollow cylindrical body to be suitable to house an ornamental body through a respective proj ecting part .

[0027] According to a possible construction variant of the present invention, the coupling member has a first part and a second part symmetrical relative to a plane parallel to said direction for requirements of coupling to said toroidal bodies .

[0028] According to a possible construction variant of the present invention, said separator element comprises a flat body that carries above and below a covering member to define two opposite seats separated by said flat body, each of said opposite seats being suitable to house one said ornamental body through said proj ecting part .

[0029] According to a possible construction variant of the present invention, said annular bodies and said separator element have the same extension in said direction .

[0030] According to a possible construction variant of the present invention, said annular bodies and said hollow body have the same extension in said direction; said hollow body being of modular type , comprising two cylindrical portions of longitudinal extension that is halved relative to a longitudinal extension of said annular bodies ; said annular bodies being modular and produced in two semi-cylindrical parts relative to a plane parallel to said given direction, each connected to one said cylindrical portion .

[0031] According to a possible construction variant of the present invention, said toroidal body is obtained by rotating a first circle , which has a first radius of given length, or a polygon about a respective central axis .

[0032] According to a possible construction variant of the present invention, said toroidal body has at least one second groove .

[0033] According to some embodiments of the present invention there is implemented a j ewel comprising a number X of toroidal bodies according to claim 17 coupled two-by-two by one said coupling member based on what has been described above .

[0034] According to a possible construction variant of the present invention, between said tubular bodies it is possible to distinguish two said tubular bodies provided with a single said groove, a number X-2 of tubular bodies provided with two said grooves and a number X- l of said coupling members , where all said intermediate bodies have two said cylindrical elements diametrically opposite , each for one said coupling member .

[0035] According to some embodiments of the present invention, there is implemented an end toroidal body comprising a tubular body curved with a constant radius by an angle of given size approximating by default 360 ° , having respective ends that rigidly house an elongated member of a shape and si ze similar to those of an inner section of said tubular body to produce a respective groove in which fixing with each said elongated member is determined by interlocking, gluing or welding .

[0036] According to some embodiments of the present invention, there is implemented an intermediate toroidal body comprising a given number N of tubular bodies , each curved with a constant radius by an angle of given si ze approximating by default 360 ° / N and having respective ends that rigidly house an elongated member of a shape and size similar to those of an inner section of said tubular body to produce a respective groove in which fixing with each elongated member is determined by interlocking, gluing or welding .

[0037] According to a possible construction variant of the present invention, the intermediate toroidal body comprises two tubular bodies each curved with a constant radius by an angle of given si ze approximating by default 360 ° / 2 = 180 ° . BRIEF DESCRIPTION OF THE FIGURES Further features and advantages of the j ewel according to the present invention will be more apparent from the following description, provided with reference to the accompanying figures , which illustrate at least one nonlimiting example of embodiment thereof , wherein identical or corresponding parts of the jewel are identified by the same reference numbers. In particular:

[0038] Fig. 1 is a schematic perspective view of a first embodiment of the present invention represented in a specific configuration;

[0039] - Fig. 2 is a sectional view of Fig. 1 represented in a different configuration in enlarged scale and with parts not represented for clarity; and

[0040] - Fig. 3 is an extracted view of a detail of Fig. 1 in enlarged scale;

[0041] - Fig. 4 is a rotated view in enlarged scale of a part of Fig. 1 with parts represented partially for clarity;

[0042] - Fig. 5 is a side elevation view of Fig. 3;

[0043] - Fig. 6 illustrates Fig. 1 with the detail of Fig. 3 in section and with the external part missing;

[0044] - Fig. 7 illustrates Fig. 4 in enlarged scale and a detail missing;

[0045] - Figs. 8a and 8b are plan views, respectively, of a second and of a third embodiment of Fig. 1 in reduced scale and represented with details represented in line;

[0046] - Fig. 9 illustrates a third embodiment of Fig. 1;

[0047] - Fig. 10 is a three-dimensional schematic view of a first variant of Fig. 3 represented in enlarged scale and with parts removed for clarity;

[0048] - Fig. 11 is a three-dimensional schematic view of a second variant of Fig. 3 with parts removed for clarity;

[0049] - Fig. 12 is a three-dimensional schematic view of a third variant of Fig. 3 with parts removed for clarity;

[0050] - Fig. 13 is a first front view of a detail extracted from Fig. 12 with parts removed for clarity;

[0051] - Fig. 14 is a second front view of a detail extracted from Fig. 12 with parts removed for clarity;

[0052] - Fig. 15 is a three-dimensional schematic and partially exploded view of a fourth variant of Fig . 3 with parts removed for clarity;

[0053] - Fig . 16 illustrates the components shown in Fig . 15 in a second partial distribution and with parts removed for clarity;

[0054] - Fig . 17 is a first front view of a detail extracted from Fig . 16 with parts removed for clarity;

[0055] - Fig . 18 is a plan view of a particular embodiment of a first detail of Fig . 8a; and

[0056] - Fig . 19 is a plan view of a particular embodiment of a second detail of Fig . 8a .

[0057] DETAILED DESCRIPTION OF THE PRESENT INVENTION

[0058] In Fig . 1 , the reference number 1 indicates , as a whole, a j ewel according to the present invention and comprising at least one toroidal body 10 extending about a central axis AX and having a first annular portion 11 with a larger section interrupted by at least one groove 120 ( Figs . 3 and 6 ) . The groove 120 is provided centrally with an element 1200 with a circular section placed at the centre of the groove 120 , the longitudinal extension of which is so limited that it can be considered cylindrical , and in particular transverse and skewed relative to the axis AX . Therefore , with particular reference to Fig . 6, the groove 120 could be considered part of a substantially rectilinear elongated body, hence cylindrical and identifiable with this expression here and hereunder without limiting the scope of the present invention .

[0059] In particular, with reference to Fig . 2 , each body 10 consists of a circular ring with a section in the form of a circle interrupted by the respective groove 120 .

[0060] With particular reference to Figs . 1-5 , the j ewel 1 comprises an internally hollow coupling member 30 that extends prismatically along a longitudinal direction D, in the sense that the respective sections transverse to the direction D are geometrically shaped identically, and is provided with a separator element 320 that divides the inner space into a first housing 34 and a second housing 36, shaped to couple the cylindrical elements 1200 of a pair of toroidal bodies 10 .

[0061] This separator element 320 has an extension, measured according to the direction D that approximates by default a longitudinal extension of the cylindrical element 1200 . Without limiting the scope of the present invention, the extension of the separator element 320 in the direction D coincides with its diameter, as can be seen in Fig . 6.

[0062] With particular reference to Figs . 4 and 5 , the member 30 comprises a first plate 38 and a second plate 39 connected at respective ends by a first C-shaped portion 31 , corresponding to the first housing 34 and cylindrically profiled, and by a second C-shaped portion 33 , corresponding to the second housing 36 and cylindrically profiled, with respective concavities mutually opposite . It must be noted, in particular, that the pin 320 rigidly connects the first plate 38 and second plate 39 through respective ends .

[0063] Again with particular reference to Figs . 4 and 5 , the first plate 38 and second plate 39 are parallel to the direction D and transverse to the pin 320 . Moreover, at least one of the first plate 38 and second plate 39 has an extension that , measured along said direction D, approximates by excess the diameter of the pin 320 to encircle each elongated body 10 above the corresponding groove 120 , as can be seen in Fig . 6 . In other words , the extension in the direction D of the C-shaped portions 31 and 33 exceeds the longitudinal extension of the elements 1200 in the direction D that engage the grooves 120 ( Fig . 6 ) , allowing the groove 120 to be encircled and covered and guaranteeing a stable coupling . In this way the member 30 covers the annular portion 11 on both sides of the element 1200 .

[0064] In Figs . 3 , 5 and 6 it can be seen that the member 30 is symmetrically shaped relative to a plane M on which the direction D lies and is parallel to the axis AX . Moreover, from Fig . 6 it is clear that the member 30 carries two adj acent tubular bodies 10 producing the coupling between each respective element 1200 and the respective first housing 34 and second housing 36 in a freely rotatable and axially / circumf erentially fixed manner, so that through each member 30 two toroidal bodies 10s are stably constrained in the same circumferential reference position and remain free to rotate relative to each other .

[0065] With particular reference to Fig . 7 , at least one of the first plate 38 and second plate 39 has a concave seat 380 / 390 obtained in the respective first plate 38 / second plate 39 or, alternatively, can be defined by application of an annular bead 382 / 392 on the first plate 38 / second plate 39 that extends on the opposite side to the corresponding end of the pin 320 starting from an outer face of the first plate 38 / second plate 39 , in both cases to house an ornamental body 3800 / 3900 .

[0066] Based on what has been described above , with particular reference to Fig . 3 , the embodiment of the coupling member 30 has been speci fically conceived to position any ornamental bodies 3800 / 3900 in a raised or lowered position . In particular, the first plate 38 and the second plate 39 are arranged respectively above and below an ideal plane defined by the axes of the corresponding cylindrical elements 1200 of the adj acent tubular bodies 10 connected by the coupling member 30 . More precisely, the geometrical plane on which the axes of the cylindrical elements 1200 lie when the toroidal bodies 10 that form the j ewel 1 are coplanar is defined as reference level . In this embodiment , the first plate 38 is arranged above this level and the second plate 39 is arranged below this level . This structure , when the two adj acent toroidal bodies are arranged coplanar, thus allows the plates 38 / 39 to support ornamental bodies 3800 / 3900 that are visibly positioned above said reference level . It can be easily understood that for the interpretation of the above with reference to Figs . 4-7 , the terms "above" and "below" must be replaced by the terms "on the left" and "on the right", however without limiting the scope of the present invention . It may be useful to speci fy that here and hereunder the expression "at the same level" means that the centre of the ornamental body lies on a plane very close to , or coincident with, the plane that contains the axes of the cylindrical elements 1200 .

[0067] Based on what has been described above, it can be easily understood that, as in Figs . 8a and 8b and 9, the j ewel 1 can comprise any number of tubular bodies 10 coupled two- by-two by members 30 , hence arranged in series , and among these it is possible to identi fy a number X given by the sum of the end toroidal bodies 10 , provided with a single groove 120 , and of the intermediate toroidal bodies 10 ' , each of which provided with two grooves 120 . In particular, the j ewel 1 comprises X tubular bodies , of which 2 are end toroidal bodies 10 and X-2 are intermediate toroidal bodies 10 ' , as well as a number X-l of members 30 , three and four for practicality in Figs . 8a and 8b and 9. In this case , each intermediate toroidal body 10 ' has a pair of opposite grooves 120 , where each groove 120 comprises a cylindrical element 1200 shaped as described above to be couplable with a member 30 as described above . For this reason, all the X-2 intermediate toroidal bodies 10 ' have two grooves 120 , and hence two cylindrical elements 1200 , diametrically opposite . For economy of drawing, a single tubular body 10 ' provided with two grooves 120 has not been illustrated, given that this embodiment can be easily understood by considering Fig . 3 in association with Figs . 8a and 8b .

[0068] The use of the j ewel 1 can be easily understood from the description above and does not require further explanations . Naturally, the j ewel 1 can be placed on a single finger by folding the respective toroidal bodies 10 on top of one another in a concertina-like manner, as shown in Fig . 9 .

[0069] Moreover, it may be useful to specify that , based on the number of the toroidal bodies 10 , the j ewel 1 can be placed on three adj acent fingers and in the case of four rings can be placed on four adj acent fingers , or, irrespective of the number of rings , as in Fig . 9 , on a single finger or in other ways by folding part of adj acent rings on top of one another also producing more than one group of "superimposed" rings for adj acent or separated fingers .

[0070] Naturally, the case in which an intermediate toroidal body 10 has the respective opposite grooves 120 angularly spaced by less than 180 ° to compensate for any particularities of the hand of the person wishing to wear the j ewel 1 in its "open" configuration, hence on more than one adj acent finger based on the spatial arrangement of the metacarpal bones of the hand on which the j ewel 1 is to be worn, is also considered part of the present invention .

[0071] Finally, it is clear that modi fications and variations can be made to the j ewel 1 described and illustrated herein without departing from the scope of protection of the present invention .

[0072] In a di fferent embodiment of the same inventive concept of the present invention visible in Fig. 10, the coupling member 30 can be modified into the coupling member 30' , in which at least one of the relative first plate 38 and second plate 39, in particular the first plate 38, carries a prismatic body 384 that extends parallel to the given direction D and is internally hollow to house in a formfitting manner at least one ornamental body 3800 through a respective tang, known and not illustrated, having a section geometrically similar to that of the prismatic body 384 based on what has been described above. Fig. 10 shows a single ornamental body 3800, but the hollow shape of the prismatic body 384 makes it possible to carry an ornamental body 3800 and an ornamental body 3900 mutually opposite. Additionally, the coupling member 30' can be modified into the coupling member 30' ’ shown in Fig. 11, where both the first plate 38 and the second plate 39 carry a prismatic body 384 / 394 for a pair of opposite ornamental bodies 3800 / 3900. In this embodiment, each coupling member 30' ’ can carry two pairs of opposite ornamental bodies 3800 / 3900.

[0073] According to a further embodiment of the coupling member 30'' ' visible in Figs. 12-17, the function of separator element of the pin 320 is implemented through a separator element 320' (Figs. 15-17) that comprises a hollow cylindrical body 322, to be suitable to house an ornamental body 3800 / 3900 through a respective projecting part 3802 that engages the respective cylindrical cavity thereof; moreover, with reference to Figs. 12-14, a flat body 324 carries above and below a covering member 323 / 323' to define two opposite seats 326 / 326' separated by the flat body 324, where each of the opposite seats 326 / 326' is suitable to carry an ornamental body 3800 / 3900 by housing in a formfitting manner a respective projecting part 3802 / 3804. It can be noted that the coupling member 30' '' of Figs. 12-14 has a first part A and a second part B symmetrical relative to a plane parallel to the direction D for requirements of coupling to the toroidal bodies 10 / 10' .

[0074] The coupling members 30' '' and the separator elements 320' of Figs. 12-17 have the same extension in the direction D. Moreover, the hollow cylindrical body 322 of Figs. 15-17 is of modular type and comprises two cylindrical portions 3220, 3222 of longitudinal extension that is halved relative to a longitudinal extension of the coupling member 30'' ' which, in this case is modular and produced in two semi-cylindrical parts, symmetrical relative to an ideal geometrical plane parallel to the given direction D (horizontal with reference to Figs. 15-17) , each of the two parts being connected to a cylindrical portion 3220, 3222 to define a modular seat 326' ' for the projecting part 3802, 3804 of an ornamental body 3800 / 3900.

[0075] Alternatively, to construct a jewel 1 it would be possible to use a body 10 produced by calendering or moulding of a portion of a linear tubular body 100 of given length, made of metal or of any other material. With particular reference to Fig. 18, this shows a curved tubular body 100 with a constant radius of a constant radius angle and of a given angular extension approximating by default 360°, where respective ends 104 are connected through an elongated member 102 (represented with a dashed line in Fig. 18) , with a shape and size that approximate those of the inner section of the tubular body 100 to produce a respective groove 120', preferably, but without limitation, cylindrical like the element 1200, depending on the shape of the cavity of the tubular body 100 where the respective fixing is performed by gluing or welding, or in any other way. Naturally, the same procedure can be followed to produce an intermediate body 10 ' with two grooves 120 ' at 180 ° , shaped as in Fig . 19, simply by putting together two sections of tubular body 100 with an extension approximating by default 180 ° , as well as using an elongated connecting member 102 for each of the free ends of each tubular body 100 with an extension approximating by default 180 ° .

[0076] Based on what has been described and illustrated above in the various embodiments , it is easily understood that the coupling member 30 / 30 ' / 30 ' ' / 30 ' ' ' of the present invention is not a simple connection element , ma forms an actual functional platform . This platform is structurally defined by the combination of components such as the separator element 320 / 320 ' and the lateral plates 38 / 39 or other support portions , and is conceived to perform a dual function : on the one hand, to connect and stably constrain the toroidal bodies 10 / 10 ' , and on the other, to provide a dedicated seat for housing in a form- fitting manner the ornamental bodies 3800 / 3900 in the space delimited by the external profiles of the toroidal bodies 10 / 10 ' , as can be seen in Figs . 1 , 3 , 6 , 8a, 8b, 9-17 .

[0077] In the claims , any reference mark placed in parentheses must not be interpreted as a limitation of the claim. The word "comprises" does not exclude the presence of other elements or steps besides those listed in a claim . Further, the terms "an" or "a" , as used in this context, are defined as one or more than one . Moreover, the use of introductory expressions such as "at least one" and "one or more" in the claims must not be interpreted in the sense that the introduction of another claim element identified using the indefinite articles "an" or "a" limits any particular claim in which this claim element appears individually, even when this claim comprises the introductory phrases "one or more" or "at least one" and indefinite articles such as "an" or "a" . The same applies to the use of definite article . Unless otherwise established, terms such as " first" and " second" are used to arbitrarily distinguish the elements that these terms describe . Therefore , these terms are not necessarily destined to indicated the priority, temporal or of another type , of these elements . The simple fact that some measurements are present in mutually di fferent claims does not indicate that a combination of these measurements cannot be advantageously used .

Claims

CLAIMS1. A modular jewel (1) , comprising at least two toroidal bodies (10) (10' ) , each having a first groove (120) provided with a first cylindrical element (1200) that extends in a given direction (D) ; at least one coupling member (30, 30', 30' ', 30' ' ' ) provided with a first (34) and with a second (36) housing to couple said first cylindrical elements (1200) of two said toroidal bodies so as to constrain their relative angular positions; characterised in that each said coupling member (30, 30', 30' ', 30' ' ') comprises at least one seat (380, 390) shaped to house an ornamental body (3800, 3900) .

2. The jewel according to claim 1, characterised in that each said coupling member (30) comprises a first (38) and a second (39) lateral plate arranged respectively above and below a plane defined by the axes of the corresponding said cylindrical elements (1200) , so that, when said connected toroidal bodies are coplanar, said seat for the ornamental body is positioned above the level of said cylindrical elements (1200) .

3. The jewel according to claim 2, characterised in that said coupling member (30) comprises a pin separator element (320) arranged between said first (38) and second (39) plate .

4. The jewel according to claim 2 or 3, characterised in that at least one of said first (38) and second (39) plate has an extension in said direction (D) to encircle a portion of each said toroidal body (10) above the corresponding said first groove (120) .

5. The jewel according to claim 1, characterised in that said coupling member (30' ' ' ) comprises a main body that extends between said toroidal bodies (10) (10') , so that, when said connected toroidal bodies (10) (10' ) are coplanar,said seat for the ornamental body (3800, 3900) is positioned between said toroidal bodies (10) (10') .

6. The jewel according to claim 5, characterised in that said coupling member ( 30 ’ ’ ’ ) comprises a hollow cylindrical body (322) that internally delimits said seat.

7. The jewel according to claim 6, characterised in that said hollow cylindrical body (322) is of modular type and comprises two cylindrical portions (3220, 3222) of longitudinal extension that is halved relative to a longitudinal extension of said coupling member (30' ' ') , being formed by two symmetrical semi-cylindrical parts, each of which connected to a respective cylindrical portion (3220, 3222) .

8. The jewel according to claim 5, characterised in that said coupling member ( 30 ’ ’ ’ ) is a flat body (324) that carries covering members (323, 323' ) to define said seat.

9. The jewel according to claim 8, characterised in that said covering members (323, 323') define two opposite seats (326, 326' ) separated by said flat body (324) , where each of said opposite seats (326, 326' ) is suitable to carry one said ornamental body (3800, 3900) by housing in a formfitting manner a respective projecting part (3802,3804) .

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