ES2741556T3 - System of coupling, fixation and relative rotation between lid and ring of a toilet - Google Patents

Abstract

Coupling, fixing and relative rotation system between a toilet lid and ring formed by two rotating parts, lid (11) and ring (12), and by one or more axis-pieces (13,14,15,16,17, 18) that is or are coupled in the housings (21,23) of the lid (11) and of the ring (12) of the toilet, or of its extensions, to allow rotation between said rotating parts, lid (11) and ring (12), wherein the system contains: - at least one movable part-axis (13), where said movable part-axis (13) has at least one protuberance or groove (19), - a first rotating part (12 ) on which the first introduction of the movable shaft-part (13) is carried out, which has a housing (21) with at least as many recesses or protuberances (22) complementary to the surface forms arranged in the body (20) of the movable part-axis (13), as protuberances or slits (19) has the movable part-axis (13) to be inserted in it, - a second rotating part (11) of the system ma, second to introduce the movable shaft-part (13), which has a housing (23), characterized in that the housing (23) of the second rotating part (11) comprises at least as many recesses or protuberances (22) complementary to the surface forms (19) arranged in the area of the body of the shaft (13) to be inserted into it, as protrusions or slits (19) has the area of the body (20) of the shaft-part (13) to be inserted in it, being offset at an angle (α) with respect to the recesses or protuberances (22) of the housing of the rotating part (12) on which the first introduction of the part-axis (13) is made, - and in which , the recesses or protuberances (22) of the housings (21,23) of the two rotating parts (11,12) coincide at least at an angle (α), remaining in phase, and allowing the displacement of the part-axis ( 13) through the two pieces (11,12) at the same time, and outside said angle (α) blocks their movement, both coupling preventing it, such as disassembly by fixing the coupling position of the part-shaft (13) without being able to remove it.

Description

DESCRIPTION

System of coupling, fixation and relative rotation between lid and ring of a toilet

More specifically, the invention relates to a system of coupling, fixing and relative rotation between the cover and ring assembly of a toilet.

Background of the invention

The assembly between the lid and the ring of a toilet is done by turning systems that allow the relative displacement between the two from a rotation axis.

Among the known turning systems installed in the toilet hoop and lid assemblies, there are shafts that are totally or partially hidden when they are introduced into a housing of both parts (toilet hoop and lid) acting as an integrated rotation axis in them , and forming an assembly where the hinge is formed by the ring, the cover and said relative axis of rotation. These types of turning systems have auxiliary means to fix their position, such as a clipping, a prisoner or similar that ensures the continuity of the hinge device in the desired position.

French patent application No. FR 2927135 A1 discloses a rotation system that has axle parts with protuberances that are complementary to the recesses of the cover housings, but which are not complementary to the recesses of the hoop housings by a side. These protrusions of the shaft pieces are blocked by clipping. Patent No. CN201743611 U discloses a system according to the preamble of claim 1.

This turning system at the time of being mounted has several drawbacks, such as the fact that the relative turning axes are not anchored in their final mounting position without clipping or auxiliary fixing, and therefore having to perform said fixing operation in the assembly and release of the auxiliary element in disassembly.

Also known are hinges, which have their own axis of rotation outside the parts of the ring and the lid of the toilet.

All these systems of relative rotation between the lid and the toilet ring can be complemented with dampers, said dampers acting as part of the axis of rotation between the ring and the lid of the toilet.

The cushioned rotation axes between cover and ring, which are usually used to form part of the system of cover and ring rotation, have protuberances on their surface to carry out the drag of one of the pieces, ring or cover, which form the set.

Description of the invention

The purpose of the present invention is to have a system of coupling, fixing and relative rotation between the cover and ring assembly, which does not make it necessary to use auxiliary means for fixing the mounting position of the elements used as shafts, achieving the fixing of said position of the axles with the coupling system itself between the parts of the assembly, having a quick and safe method of assembly, and with fewer steps to execute.

This invention is obtained thanks to a system comprising at least the features of claim 1 and having in particular that the covers and hoops of toilets have a coupling system between them, fixing said coupling position and relative rotation between both rotating parts, ring and cover, for normal operation. This coupling, fixing and turning system is formed by the cover, or its extension towards the axis of rotation, by the ring, or its extension towards the axis of rotation, and by the aforementioned relative axis of rotation between the two pieces, ring and cover, which will form pieces as axes.

Therefore, we can have a system of coupling, fixation and relative rotation between the two pieces, ring and cover, which has the axis of rotation contained in own parts of said pieces, forming coupling systems, fixation and partial or totally hidden rotation , or we can also have said parts, ring and cover, have extensions of themselves, coupling arms to the axis of rotation, to form a system of coupling, fixation and rotation seen, the axis of rotation remaining outside said parts .

In both cases, the system of coupling, fixing and relative rotation between the two rotating parts, hoop and cover, has in said parts a common area, housings, through which the axis-pieces that form the relative axis of rotation will run between both, either in the piece itself or in the extension thereof, whereby said area is usually constituted by housings in both pieces that coincide alignedly with each other, so that the relative axis of rotation is common for both pieces, and the axle parts that form said axis of rotation pass through said housings, so that said axis of rotation is integrated into the structure of the lid and the hoop itself, forming a kind of hinge totally or partially hidden, or that it does so in the extensions of said pieces externally to them, forming a kind of view hinge.

In this way, the system of coupling, fixing and relative rotation between the lid and the toilet ring is formed by two rotating parts, the lid and the ring, which have housings, either in the pieces themselves or in their extensions, said housings being communicated between them, facing and aligned longitudinally to allow the coupling of one or more axis-pieces that form the axis of rotation, which allows the relative rotation between said rotating parts. These housings are usually found at the two lateral ends of the rear part, of the cover and ring hoop rotation, in the case of containing the axis of rotation inside the structure of the rotating parts, or at the end of the arms that form the extensions of said rotating parts to have the axis of rotation on the outside thereof.

The axle parts that form the shaft, which are installed in the indicated housings, consist of at least one body that is coupled to said housings of the rotating parts, cover and ring, creating a relative axis of rotation between both rotating parts, which allows said rotation once the axle pieces are coupled between the housings of the two rotating parts, cover and ring. This coupling, fixing and turning system is preferably formed by two shaft-pieces that fit separately into each of the two housing assemblies, which are formed between the two rotating parts, cover and ring, at each of the rear ends. of rotation and dejection of said rotating parts.

The coupling body of the shaft pieces has at least one protuberance and / or a longitudinal groove, where said protuberance and / or groove can be of various shapes and sizes, and can be repeated at various points on the surface of the body of coupling, creating a significant alteration in the surface of said coupling body, capable of engaging in a groove or protuberance in a complementary manner arranged in another element.

The rotating part where the introduction of the shaft parts is first carried out, usually the toilet ring, has in its housings at least as many recesses as protuberances arrange the body of the shaft parts, and / or as many protrusions available in the housing as longitudinal grooves has said body, said recesses and / or protuberances of the housings coinciding with the complementary shape of the protuberance and / or groove of the coupling body of the shaft pieces, and at the same angles between them, allowing the coupling without auxiliary elements between the part and the axle parts, said axle parts remaining inserted in each housing of said rotating part where its introduction was first made.

These housings can be to keep the shaft-pieces coupled in one position, and for the coupling to be made in the housing of the second rotating part by introducing the part of the shaft-pieces that is outside the housing of the first rotating part, or allowing the displacement of said shaft-pieces to be introduced in a more considerable way in the housing of the second rotating part, allowing the passage of the protuberances and / or longitudinal grooves of the coupling body of the shaft-pieces.

The second rotating part where the shaft-part is inserted in the second instance, usually the toilet lid, has at least one housing prepared to allow the movement of a shaft-piece, having at least as many recesses and / or protrusions, as protrusions and / or longitudinal grooves have the area of the body of the shaft-piece to be introduced therein, offset with respect to the recesses and / or protuberances of the housing of the first rotating coupling piece, with respect to the axis of rotation with said first piece rotating coupling, so that in a specific offset position in the relative rotation between the two rotating parts, ring and cover, the coupling body of the shaft-piece can be introduced into the housing of the second rotating coupling part, being fixed in both rotating parts and forming a set that allows relative rotation between them.

This coupling will be maintained once made and can only be decoupled at the same offset angle between the two rotating parts, cover and ring, since the recesses or protuberances of the housings of the two rotating parts, which coincide at least at an angle , remain in phase, and allow the displacement of the shaft-piece through the two pieces at the same time, and outside of this angle its displacement is blocked, both from coupling preventing it, and from disassembly by fixing the coupling position of the piece -axis without being able to be extracted.

The housing of the first and / or second rotating coupling part may have more than one offset and / or protrusion out of phase with those of the other rotating coupling part, so that there are various options for introducing and fixing the shaft in said second piece of coupling

In this way, and thanks to the longitudinal protrusions and / or recesses of the coupling body, and the complementary recesses and / or protuberances of the housings of the two rotating parts, cover and ring, a coupling and fixing between the cover is achieved , the ring and the pieces-axis that unites them, without need of auxiliary elements, saving in materials and complexity of assembly.

The application of the advantageous features of the cover, ring and pivot shaft assembly can be carried out in various shapes. The protuberances can be achieved by means of a sheath that is placed on a smooth or grooved coupling body, providing a standard shaft-piece with the advantageous characteristic of the protuberances. It is even possible to have protuberances that fit into the body of the standard axle parts by auxiliary fixing means. In the same way, in the case of the grooves, there are covers that increase the size of the shaft body and that introduce said longitudinal grooves into its outer coupling form.

Similarly, the housings of the rotating parts may have recesses or protuberances formed in their own structure, or be added therein by means of parts that are coupled to the housing providing said recesses or protuberances.

The axle parts, in this way, act as the hinge of a hinge, as the axis of rotation of the system as a whole, but can also act as a shock absorber at the same time, if a shock absorber shaft is used for this purpose.

The application of the various mounting options of the axle parts in the different and possible housings of the rotating parts, hoop and cover, can be combined in different ways but having at least one movable axle part. Therefore, a fixed axle part may be available in the system, that is to say that the housing of the second rotating coupling part does not allow the movement of the axle part inside, and the other movable part-axis is say that it allows the coupling between the two rotating parts by entering the axle part and fixing the second rotating coupling part, the axle piece being the one with the ring or the ring drive and the movable part-axis being the opposite. It is also possible to have the two displaceable axle parts.

It is also possible to use a single axle part to couple and fix the rotating parts and form the axis of rotation of the system as a whole, in a manner analogous to the operation of the two axle parts.

Other details and features will be revealed in the course of the description given below, in which reference is made to the accompanying drawings, which are shown by way of illustration, but not limitation, a graphic representation of the invention.

Brief description of the figures

Figure 1 is a bottom perspective view of the two rotating parts (ring and cover) aligned.

Figure 2 is a perspective view of the axle part before being introduced into the hoop housing, in a system in which said axle part is movable and will drag to the cover, while the other axis part of the rotation system It will be fixed and drag to the hoop.

Figure 3 is a perspective view with a partial section of the hoop housing, of the movable shaft-piece inserted into the hoop housing, in a system such as that specified in the description of Figure 2.

Figure 4 is a perspective view of the fixed part-shaft that drags the ring before entering the hoop housing, in a system such as that specified in the description of Figure 2.

Figure 5 is a perspective view with a partial section of the hoop housing, of the fixed shaft-piece that drives the hoop into the hoop housing, in a system as specified in the description of Figure 2.

Figure 6 is a bottom perspective view of the alignment of the ring in the toilet lid, in a system such as that specified in the description of Figure 2.

Figure 7 is a partial sectional view of the hoop and cover housings, prior to the displacement of the shaft-piece, in a system such as that specified in the description of Figure 2.

Figure 8 is a perspective view with partial section of the hoop and cover housings, in the position in which the protuberance and recess are in phase, in a system as specified in the description of Figure 2. Figure 9 is a perspective view of the axle part before being introduced into the hoop housing, in a system in which said axle part is movable and will drag the ring, while the other axis part of the rotation system will be fixed and will drag the lid.

Figure 10 is a perspective view with a partial section of the hoop housing, of the movable axle part introduced into the hoop housing, in a system such as that specified in the description of Figure 9.

Figure 11 is a perspective view of the fixed part-shaft that drags the cover before being introduced into the hoop housing, in a system such as that specified in the description of Figure 9.

Figure 12 is a perspective view with a partial section of the hoop housing, of the fixed part-axle that drags the cover inserted in the hoop housing, in a system like the one specified in the description of figure 9.

Figure 13 is a bottom perspective view of the alignment of the ring in the toilet lid, in a system as specified in the description of Figure 9.

Figure 14 is a partial sectional view of the hoop and cover housings, after displacement of the axle piece, in a system such as that specified in the description of Figure 9.

Figure 15 is a perspective view with partial section of the hoop and cover housings, in the position where the protuberance and recess are in phase, in a system such as that specified in the description of Figure 9. Figure 16 it is a perspective view of the shaft-piece before being introduced into the hoop housing, in a system in which said shaft-piece is movable and will drag the ring, while the other shaft-part of the rotation system will also be movable and will drag the lid.

Figure 17 is a perspective view with a partial section of the hoop housing, of the movable shaft-piece that drives the hoop into the hoop housing, in a system such as that specified in the description of Figure 16.

Figure 18 is a perspective view of the movable shaft-piece that draws the cover before entering the hoop housing, in a system such as that specified in the description of Figure 16.

Figure 19 is a perspective view with a partial section of the hoop housing, of the movable shaft-piece that pulls the cover introduced into the hoop housing, in a system such as that specified in the description of Figure 16.

Figure 20 is a bottom perspective view of the alignment of the ring in the toilet lid, in a system such as that specified in the description of Figure 16.

Figure 21 is a partial sectional view of the hoop and cover housings, prior to the displacement of the piezaseje, in a system such as that specified in the description of Figure 16.

Figure 22 is a perspective view with partial section of the hoop and cover housings, in the position where the protuberance and recess are in phase, in a system as specified in the description of Figure 16. Description of a preferred embodiment

In one of the preferred embodiments of the invention, as shown in Figures 1 to 8, the system (10) for coupling, fixing and relative rotation between the lid (11) and toilet ring (12), and shaft-pieces (13,14) of rotation, as can be seen in figures 2 and 3, of a movable shaft-piece (13) that drags into the cover (11), which is completely inserted into the housing (21) of the ring (12), matching the protuberances (19) of the coupling body (20) of the shaft-piece (13), with the recesses (22) of the housing (21) of the ring (12) .

Said system (10), as shown in figures 4 and 5, also has a fixed part-shaft (14) for driving the ring (12) which is inserted into the housing (21) of said ring (12) matching the protuberances (19) of the body (20) of coupling of the shaft-piece (14), with the recesses (22) of the housing (21) of the ring (12). In this case, the coupling body (20) is partially out so that, as it does not move towards the inside of the cover (11), the body portion (20) that is outside the housing (21) of the ring ( 12) be the one that acts as the axis of rotation. The coupling, having the movable part-shaft (13) fully inserted in the housing (21) of the ring (12), and the fixed part-part (14) shown partially, must be carried out, as shown in 6, so that the exposed portion of the fixed part-shaft (14) is inserted into the housing (23) of the cover (11), in order to then be able to align the movable part-axis (13) with the housing ( 23) of the cover (11).

In this aligned coupling position, as shown in Figure 7, the movable shaft-piece (13) is locked without being able to enter the housing (23) of the cover (11), since the protuberances (19) of the body (20) of the shaft-piece (13) do not coincide with the position of the recesses (22) of the housing (23) of the cover (11), which are offset by an angle (a). At the moment when the ring (12) and the cover (11) rotate in relation to each other, and the cover (11) is arranged at an angle (a) with the ring (12), the protuberances (19) of the body (20) of the axle part (13) will be aligned with the position of the recesses (22) of the housing (23) of the cover (11), and the axle part (13) can be introduced into the housing (22) of the cover (11) and thus fix it.

In this way the two axle parts (13,14) are fixed without auxiliary elements to them, and acting as a relative axis of rotation between ring (12) and cover (11), only allowing its disassembly if the angle is reached ( a) between said rotating parts, since when attempting to move the movable shaft part (13) again towards the outside of the housing (23) of the cover (11), at another angle between ring (12) and cover (11), would be the inner wall of the housing (23) of the cover (11).

Alternatively and as another embodiment of the invention, and as can be seen in Figures 9 to 15, the toilet lid assembly (11) and toilet ring (12), and pivot part (15,16) it has, as can be seen in figures 9 and 10, a movable shaft-piece (15) that draws the ring (12), which is completely inserted into the housing (21) of the ring (12), matching the protuberances (19,24) of the coupling body (20) of the axle piece (15), with the recesses (22,25) of the housing (21) of the ring (12). In this embodiment, the movable part-shaft (15), having to drag the ring (12) and move to fix it on the cover (11), has two sets of outdated protuberances (19,24) and therefore two recesses ( 22.25) in the hoop (12).

Said assembly, as shown in figures 11 and 12, also has a fixed part-shaft (16) for driving the cover (11) which is inserted into the housing (21) of said ring (12). In this case, as in the previous embodiment, the coupling body (20) is partially out so that, as it does not move into the lid (11), the body portion (20) that remains in the The outer housing (21) of the ring (12) is the one that acts as the axis of rotation.

The coupling, having the movable part-shaft (15) fully inserted in the housing (21) of the ring (12), and the fixed part-part (16) shown partially, must be carried out, as shown in Figure 13, so that the exposed portion of the fixed part-shaft (16) is inserted into the housing (23) of the cover (11), in order to then be able to align the movable part-axis (15) with the housing ( 23) of the cover (11).

In this aligned position of coupling, the movable shaft-piece (15) is locked without being able to enter the housing (23) of the cover (11), since the protuberances (24) of the body (20) of the shaft-piece (15) do not match the position of the recesses (22) of the housing (23) of the cover (11), which are offset by an angle (a). At the moment when the ring (12) and the cover (11) rotate in relation to each other, and the cover (11) is arranged at an angle (a) with the ring (12), such and as shown in figure 15, the protrusions (24) of the body (20) of the shaft-piece (15) will be aligned with the position of the recesses (22) of the housing (23) of the cover (11), being able to insert the axle part (15) into the housing (23) of the cover (11) and thus fix it, as shown in figure 14.

In this way the two axle parts (15,16) are fixed without auxiliary elements to them, and acting as a relative axis of rotation between ring (12) and cover (11), only allowing its disassembly if the angle is reached ( a) between said parts, since when attempting to move the movable shaft (15) out of the housing (23) of the cover (11) again, at another angle between the ring (12) and cover (11), it would be the inner wall of the housing (23) of the cover (11).

As another alternative to the two previous embodiments, and as can be seen in Figures 16 to 22, the toilet lid assembly (11) and toilet ring (12), and turning parts (17,18), as can be seen in figures 16 and 17, of a movable shaft-piece (17) that draws the ring (12), which is completely inserted into the housing (21) of the ring (12), matching the protuberances (19,24) of the coupling body (20) of the axle piece (15), with the recesses (22,25) of the housing (21) of the ring (12). In this embodiment, the movable part-shaft (17), having to drag the ring (12) and move to fix it on the cover (11), has two sets of outdated protuberances (19, 24) and therefore two recesses ( 22.25) in the hoop (12).

Said assembly, as shown in Figures 18 and 19, also has a movable shaft-piece (18) that drags into the cover (11), which is completely inserted into the housing (21) of the ring (12). ), matching the protuberances (19) of the body (20) of coupling of the shaft-piece (18), with the recesses (22) of the housing (21) of the ring (12).

The coupling, having the two movable axle parts (17,18) fully inserted in the respective housings (21) of the ring (12), as shown in Figure 20, is carried out directly without having to insert a part- axis (17,18) before the other, directly aligning the two movable axes (17,18) with the housings (23) of the cover (11).

In this coupling position, the movable axle parts (17,18), as shown in Figure 21, are locked without being able to enter the respective housings (23) of the cover (11), since the protuberances (19,24) of the body (20) of the shaft pieces (17,18) do not match the position of the recesses (22,25) of the housings (23) of the cover (11), which are out of date An angle At the moment when the ring (12) and the cover (11) rotate in relation to each other, and the cover (11) is arranged at an angle (a) with the ring (12), such and as shown in figure 22, the protrusions (19,24) of the body (20) of the shaft-pieces (17,18) will be aligned with the position of the recesses (22,25) of two housings (23) of the cover (11), the shaft-pieces (17,18) being able to be inserted into individual housings (23) of the cover (11) and thus fixed to it.

In this way the two axle parts (17,18) are fixed without auxiliary elements to them, and acting as a relative axis of rotation between ring (12) and cover (11), only allowing its disassembly if the angle is reached ( a) between said parts, since when trying to move the movable axle parts (17,18) out of the housings again (23) of the cover (11), at another angle between ring (12) and cover (11), the inner wall of the housings (23) of the cover (11) would be found.

As an alternative to the previous configuration of the axle parts (13,14,15,16,17,18) and in an applicable way to all the previous alternative embodiments, said axle part (13,14,15,16,17 , 18) is formed by a shock absorber that performs, in addition to the axis of rotation function between the lid (11) and the ring (12) of the toilet, it also acts as a regulator and damper of the fall of said ring (12) and cover (11), the coupling body (20) of said axle part (13,14,15,16,17,18) having the bump of the protuberances (19,24) characterizing.

Also in an alternative way to the previous configuration of the shaft-piece (13,14,15,16,17,18) and in a way applicable to all the previous alternative embodiments, the protuberances (19 and / or 24) are included in a cover that is coupled to a conventional smooth shaft, without any relief, and that adapts to the advantageous system of the invention by means of a cover, cover or ring that is coupled and fixed in the desired position of the body (20).

With respect to the alternatives of previous embodiment, it is to be noted that it is possible to exchange the protuberances on the shaft-pieces and in the housings for the recesses and grooves, provided they form a complementary set. In the same way, bumps and recesses can be alternated in the same body or housing, with the same complementary result between forms of the housing and the body of the shaft-piece.

In the same way, the assembly can also be carried out starting with the cover and then moving on to the ring, although it is not the preferred option of the invention.

Finally, a single axle part can be used to perform the coupling, fixation and relative rotation, using in said single axle part protrusions and / or grooves at both ends thereof to perform said coupling and fixation.

Described sufficiently the present invention in correspondence with the attached figures, it is easy to understand that any modifications of detail that are deemed convenient may be made therein, as long as no variations of detail are introduced that alter the scope of the invention that is defined by The following claims.

Claims (13)

1. System of coupling, fixing and relative rotation between lid and ring of a toilet formed by two rotating parts, lid (11) and ring (12), and by one or more pieces-axis (13,14,15,16, 17,18) which are or are coupled in the housings (21,23) of the lid (11) and the ring (12) of the toilet, or its extensions, to allow rotation between said rotating parts, lid (11) and ring (12), where the system contains: - at least one movable part-axis (13), wherein said movable part-axis (13) has at least one protrusion or groove (19), - a first rotating part (12) on which the first introduction of the movable shaft-piece (13) is made, which has a housing (21) with at least as many recesses or protrusions (22) complementary to the surface shapes arranged in the body (20) of the movable part-axis (13), such as protuberances or grooves (19) has the movable part-part (13) to be introduced therein, - a second rotating part (11) of the system, second to introduce the movable shaft part (13), which has a housing (23), characterized in that the housing (23) of the second rotating part (11) comprises at least so many recesses or protuberances (22) complementary to the surface shapes (19) arranged in the area of the body of the axle part (13) to be introduced into it, as protuberances or grooves (19) has the area of the body (20) of the shaft piece (13) to be introduced therein, being offset at an angle (a) with respect to the recesses or protuberances (22) of the housing of the rotating part (12) on which the first introduction of the shaft part (13) is made, - and in that, the recesses or protuberances (22) of the housings (21,23) of the two rotating parts (11,12) coincide at least in an angle (a), remaining in phase, and allowing the displacement of the shaft-piece (13) through the two pieces (11,12) at the same time, and outside said angle (a) it blocks its displacement, both from coupling preventing it, and from disassembly by fixing the coupling position of the piece- shaft (13) without it can be removed. 2. System of coupling, fixing and relative rotation between lid and ring of a toilet according to the 1st claim characterized in that each of the housing assemblies (21,23) of the two rotating parts (11,12), ring and lid , or their extensions, are communicated with each other, aligned and facing longitudinally. 3. System of coupling, fixation and relative rotation between lid and ring of a toilet according to claim 1 characterized in that the rotation system (10) is formed by two shaft-pieces (13,14) that fit separately in each one of the two housing assemblies (21,23) of the rotating parts (11,12). 4. System of coupling, fixing and relative rotation between lid and ring of a toilet according to claim 1 characterized in that the shaft-piece (13,14) consists of at least one body (20) coupling to the housings (21, 23) of the rotating parts (11,12), said body having at least one protuberance and / or a longitudinal groove (19). 5. System of coupling, fixing and relative rotation between lid and ring of a toilet according to claim 1 characterized in that the housing (21,23) of one of the rotating parts (11,12) has more than one recess and / or protuberance (22) at an outdated angle with respect to the recesses and / or protuberances (22) of the other rotating part (11,12), having different angles (a) of encounter in phase between the recesses and / or protuberances (22 ) of both rotating parts (11,12). 6. System of coupling, fixing and relative rotation between lid and ring of a toilet according to the 1st and 2nd claims characterized in that the protuberances and / or grooves (19,24) of the shaft-piece (13,14,15,16 , 17,18) have a significant alteration of the surface of said shaft-piece (13,14,15,16,17,18), capable of engaging in a groove or protuberance (22,24) in a complementary manner arranged in the accommodation (21,23). 7. System of coupling, fixing and relative rotation between lid and ring of a toilet according to claim 1 characterized in that the protuberances, grooves and recesses (19,24) are achieved by a cover that is coupled to the shaft-piece (13 , 14) and to the housing of the rotating parts (11,12). 8. System of coupling, fixing and relative rotation between lid and ring of a toilet according to the 1st claim characterized in that the rotation system (10) is formed by a single shaft-piece (13,14) that fits into the housings ( 21,23) of the rotating parts (11,12). 9. System of coupling, fixing and relative rotation between lid and ring of a toilet according to the 1st claim characterized in that the rotating part where the introduction of the shaft part (13) is first performed, is the ring (12) of the toilet . 10. System of coupling, fixing and relative rotation between lid and ring of a toilet according to the 1st claim characterized in that the rotating part where the introduction of the shaft-pieces (13) is performed in second instance, is the lid (11) of the toilet 11. System of coupling, fixing and relative rotation between lid and ring of a toilet according to claim 1 characterized in that the axle parts (13,14,15,16,17,18) are formed by a shock absorber the rotating parts (11,12). 12. System of coupling, fixing and relative rotation between lid and ring of a toilet according to the 3rd claim characterized in that of the two shaft pieces (13,14) that fit in the two housing assemblies (21,23), a It is movable (13) and the other is fixed position (14), dragging a shaft piece to a rotating piece, and the other shaft piece to the other rotating piece. 13. System of coupling, fixing and relative rotation between lid and ring of a toilet according to the 3rd claim characterized in that the two axle pieces (17,18) that fit in the two housing assemblies (21,23), are movable , dragging a shaft piece to a rotating piece, and the other shaft piece to the other rotating piece.