The present invention relates to a mixing unit, a mixer valve comprising such a mixing unit and manufacturing method of such a mixer tap.

The invention relates to the field of valves for sanitary use. In particular, said valves "mixers" are used to send a mixed stream of running water by mixing a hot water flows and a cold water flow within a cartridge mounted in the body of tap. The respective flow rate of the cold water flow and hot water admitted to the cartridge can be adjusted using a control lever in order to enable a temperature control flow mixed by rotation of the lever around an axis, and the rate of flow mixed by a lever rotation about a second axis.

The cartridge includes in most cases a pair of perforated ceramic discs, one being fixed and the other being movable under the action of the lever while being in planar contact, sliding and sealed with the fixed disc. Depending on the position of the movable disk on the fixed disk, the channels are formed to allow the admission of cold and hot water flows within the cartridge, with a more or less large flow rate, and thereby cause their mixture the formation of the mixed stream.

Some cartridges can be known with a separate additional housing and is reported against the cartridge. For example, patent FR-B1 2,876,433 discloses a cartridge for a mixing valve equipped with an additional sealing thermostat module coupled to the base of the cartridge. The additional thermostat module is provided with thermostatically controlled means for, when the mixed flow temperature exceeds a predetermined threshold value, to close the passage of hot water before it enters the cartridge, to automatically limit the temperature of the stream.

In general, conveniently, sealing coupling the cartridge and its additional housing can be difficult to the extent that the body is generally of a relatively narrow diameter, which complicates the gripping of additional housing.

US 5,853,023 A discloses a mixture multifunction unit for sanitary apparatus, comprising a cartridge with a coupling base. Different rotational positioning means and translationally additional housings with various functions are provided. These positioning means include fingerprints provided on the cartridge coupling base, and complementary shapes provided on the additional box. This complementarity of shapes does not facilitate the mounting of the cartridge and its housing in the body of a valve, in so far as it is necessary that the additional housing and the cartridge being positioned in a correct relative orientation to be coupled, this which can be difficult to get in a valve body.

US 2002 / 100510A1 discloses a mixing valve equipped with a mixing unit comprising a cartridge and an additional housing, the additional housing being fixed by screw or nut to the cartridge. The housing and the cartridge being so bound, the sealing means provided between them are biased even when the housing and the cartridge are not introduced into the valve body.

Accordingly, the object of the invention is to propose a new mixing unit, for a mixer tap, which is easier to assemble.

The invention relates to a mixing unit of the invention for a mixer tap, comprising a cartridge, which includes fluid flow mixing means, and is provided with a coupling base with a first input a first incoming stream of fluid having a first temperature, a second input of a second incoming stream of fluid having a second temperature higher than the first temperature, and an output for an output stream obtained using mixing means, for mixing of the first inflow and the second inflow.

The invention of the mixing unit also comprises an additional housing which is designed to be placed in a coupling position with the coupling base, the housing containing additional thermostatic means which, when the additional housing is in position coupling, are designed to change the flow of the first incoming stream and / or second incoming stream as a function of the temperature of the output flow.

According to the invention, the mixing unit further comprises attachment means for carrying the additional housing in a configuration for attaching the additional housing on the coupling base, configuration wherein the fastening means permit a deflection of the additional housing relative to the cartridge between the coupling position and a separation position of the additional housing relative to the cartridge. In addition, in spread position, the fastening means are designed to retain the additional housing attachment configuration.

Thanks to the invention, the additional housing can be positioned on the cartridge prior to its introduction into a valve body. The mixing unit can thus be preassembled prior to installation in the valve body. The attachment means hold, that is to say capture the additional housing, so that the additional housing remains attached to the coupling base when the additional housing is attachment configuration. The additional housing can be manipulated through the cartridge during insertion into the valve body, which facilitates mounting. Finally, the attachment means of the additional housing on the cartridge allows a deflection movement of the latter, they n ' not interfere with the clamping of the accessory housing between the cartridge and the bottom of the valve body. This ensures sealing of the coupling of the cartridge and the additional housing, while discharging the attachment means of their fastening function of the cartridge with the additional housing, which function is thus assured by the clamping in question. However, when the mixing unit in attachment configuration is not inserted and clamped in the body of a faucet, the additional casing is not constrained to remain in the coupling position, which allows the prevent premature wear of the mixing unit before being introduced into the valve body. coupling of the cartridge and the additional housing, while discharging the attachment means of their position of attachment of the cartridge with the additional housing, which function is thus assured by the tightening in question. However, when the mixing unit in attachment configuration is not inserted and clamped in the body of a faucet, the additional casing is not constrained to remain in the coupling position, which allows the prevent premature wear of the mixing unit before being introduced into the valve body. coupling of the cartridge and the additional housing, while discharging the attachment means of their position of attachment of the cartridge with the additional housing, which function is thus assured by the tightening in question. However, when the mixing unit in attachment configuration is not inserted and clamped in the body of a faucet, the additional casing is not constrained to remain in the coupling position, which allows the prevent premature wear of the mixing unit before being introduced into the valve body.

According to other advantageous features of the invention, taken individually or in combination:

- the cartridge has a generally cylindrical shape, defining an axis of cartridge and ending with the coupling base which is crossed by the cartridge axis, the fastening means being designed so that the displacement of the additional housing is effected according to a displacement direction substantially parallel to the axis of cartridge;

- the coupling base includes means for positioning the additional housing in rotation relative to the cartridge around the cartridge axis, the positioning means allowing a translation of the additional housing relative to the cartridge, along the cartridge axis;

- the positioning means comprise a parapet protruding from the coupling base parallel to the cartridge axis, the housing further comprising at its periphery a parapet portion of the receiving recess;

- the fastening means comprise at least one retaining claw secured to the coupling base and at least one lug projecting from the additional housing, the lug being adapted to be retained between the claw and the basis of coupling attachment configuration, the gripper being positioned so as to allow a displacement of the additional housing between two end positions along the cartridge axis related to the displacement;

- the attachment means comprise firstly at least one lug projecting from the additional housing, and secondly a hook arranged on the coupling base, and adapted to receive the tab configuration of attachment, so as to maintain said tab therein while permitting deflection of the lug in the hook between two end positions defining the clearance;

- the mixing unit comprises at least one coupling seal between the additional housing and the coupling base, the setting in the coupling position of additional housing causing compression of the joint to ensure sealing the coupling of additional housing on the coupling base;

- the additional housing includes:

- a first side intended to bear against the coupling base when the additional housing is in the coupling position, - a second side opposite the first side, and

- at least a first conduit and a second conduit extending through the housing from the first side to the second side and being adapted to be connected respectively to the first input and second input at the first side when the additional housing is coupling position.

The invention also relates to a mixer tap comprising a docking body of a mixing unit as defined above, the host body comprising an annular wall defining a body axis and being adapted to receive the unit mixture therein, slidingly along the body axis. The host body also includes a coupling plate of the additional housing, which is fixedly disposed within the annular wall, and clamping means along the axis of the body, the mixing unit against the platen of coupling, allowing on one hand a bid in the coupling position of additional housing with the coupling base, and secondly setting a coupling position of additional housing with the coupling plate.

The invention finally relates to a method for producing a mixer valve as defined above, the method comprising the following successive steps:

a) patterned attachment of additional housing on the coupling base, in spaced position by means of fastening means which are then solicited,

b) introduction of the mixing unit, thus formed in the receiving body until the mixing unit comes into abutment against the coupling plate,

c) clamping the mixing unit against the coupling plate, for passing the additional housing of the spacer position to the coupling position with the coupling base, so that the fastening means are not solicited.

The invention will be better understood from reading the description which follows, given solely as non-limiting and non-limiting example and with reference to the drawings:

- Figure 1 is a longitudinal section of a mixing valve comprising a mixing unit according to a first embodiment of the invention;

- Figure 2 is a longitudinal section of the mixer tap of Figure 1, according to another cutting plane;

- Figure 3 is a perspective view from below of the mixing unit of Figures 1 and 2;

- Figure 4 is a view similar to Figure 3, wherein an additional housing of the mixing unit is omitted;

- Figure 5 is a perspective view of additional housing omitted in FIG 4;

- Figure 6 is a partial perspective view of a mixing unit according to a second embodiment of the invention;

- Figure 7 is an exploded perspective view of the FIG mixing unit

6 ;

- Figures 8 and 9 are perspective views from below, in two different orientations, of a mixing unit according to a third embodiment of the invention;

- Figure 10 is an exploded perspective view, as oriented in Figure 9, the mixing unit of Figure 9; and

- Figure 1 1 is a perspective view of an additional housing belonging to the figures of the mixer unit 8 to 10.

Figures 1 and 2 illustrate a mixing valve 1 into which is inserted a mixing unit 2 shown only in Figure 3. The mixer tap 1 is preferably designed to be installed on a tray of the sink type, or more generally within ' a sanitary facility. The mixing valve 1 comprises, typically, a 3 to spout from which a mixed flow of water shown by the arrow M1 is to be transmitted. The valve 1 also includes a host 4 body comprising an annular wall 309 defining an axis X4 body which is intended to be disposed vertically when the valve is mounted on the plumbing. The mixing unit 2 is in turn a generally cylindrical shape with a circular base, defining an axis coaxial cartridge X2, and is complementarily shaped with the annular wall 309 so as to be received therein, slidably along the axis X4 of the body, so that, as illustrated in Figures 1 and 2, the axes X2 and X4 are confused. The mixing unit 2 is inserted into the body 4 through an upper opening 9 of the wall 309 along the axis X2 cartridge.

For convenience, the following description is oriented relative to the axis X2, considering that the terms "upper" and "top" correspond to an axial direction directed towards the upper part of Figure 1, while the terms " lower "and" bottom "correspond to an axial direction in opposite directions.

The mouthpiece 3 form a curved conduit which extends from the wall 309 obliquely with respect to the axis X2 cartridge upwardly, the curvature of the spout 3 to guide the mixed water flow M1 down. The mixed water flows and progresses obliquely upwardly within the spout of the arrow M2 until the free end of the latter.

The mixer tap 1 also comprises a cold water inlet 5, which is visible in Figure 2, and a hot water inlet 6 which is visible in Figure 1, which are connected to the body 4 at a lower end of the body 4. the cold water inlet 5 and the hot water inlet 6 are provided for connection to conventional water supply means of the sanitary installation, which are not detailed in the present description . Cold water progresses upwardly in the inlet 5, along arrow F1, at a temperature Tf. Hot water progresses in turn upwardly in the inlet 6, according to arrow C1, to a temperature Te. C1 and F1 flows are mixed within the mixer tap 1 to form the M1 flow, a temperature T Mbetween T and Te, and debit supplemented C1 and F1 flows. In this case, the mixture of the F1 and C1 incoming stream to form the outflow M1 is carried out in the mixing unit 2.

The mixing unit 2 comprises firstly a cartridge 1 1 shown apart in Figure 4 and on the other hand an additional housing 15, shown separately in Figure 5. The housing 15 is adapted to be mounted on support upwards against a coupling base 45 which terminates in the bottom of cartridge 1 1 along the axis X2 cartridge, which corresponds to a coupling position of said additional box 15 with the coupling base 45, as illustrated in figures 1 to 3. in this case, the coupling base 45 is of discoid overall shape centered on the axis X2 cartridge. The housing 15 and the cartridge 1 1 are also adapted to be decoupled from each other, and thus be handled independently.

When mounted within the body 4, the cartridge 1 1 is located in the upper part thereof, above the accessory housing 15 which is located in the lower part of the body 4. In order for the valve 1 to operate, it is expected that the cartridge 1 1 and the additional housing 15 are in the coupling position and mounted within the body 4

as shown in Figures 1 and 2. In this case, the additional module 15 comprises a first side 20 intended to come to bear axially against a mating base 45 and a second side 24 opposite and parallel to the first side 20, through which it is itself bearing axially downwardly against the mating plate 23 of the body 4. the latter is substantially discoid, extends radially with respect to the axis X2 cartridge and is integrally disposed within the annular wall 309. the cartridge 1 1 comprises a cover 53 containing mixing means 13, described below, and forming an outer cylindrical shell having a circular base about the axis X2 cartridge, so that the cartridge 1 1 is itself generally cylindrical.

As is particularly visible in figure 5, the additional housing 15 includes two pins 313, which protrude outwardly from the housing 15 in opposite directions along an axis of pins X313 which is parallel to sides 20 and 24, and which is intended to be orthogonal to the X2 and X4 axes. In this case, the pins 313 are each projecting from the outer surface of one of the conduits 25 and 32. The pins 313 are for example generally cylindrical with a circular base, coaxially with the axis X313. Furthermore, two clamps 315, particularly visible in figure 4, protrude from the base 45 parallel to the axis X2 cartridge coupling, down, and each have a notch 317 oriented parallel to the axis X2 and downwardly open.

The each of the slots 317 includes an extremal collar 319, which forms a pair of claws for retaining the pin 313 within the slot 317, between the bottom of the notch and the extremal collar 319. In effect, the width of each notch 317 is substantially constant from the bottom of the notch 317 to the collar 319, which is an extremal tightening of the notch. The pin 313 can be captured in the notch 317 by passing the neck 319 further towards the bottom of the latter, which causes a temporary local deformation of neck 319. Once captured, the pin 313 can move freely between the bottom and the collar 319 in a parallel movement stroke to the X2 axis, and orthogonal to the axis X313, while however being retained by the collar 319. the two pins being captured in the notch,

- firstly a separated position wherein the pins 313 are captured within their respective slot 317, into abutment against the collar 319 associated extremal,

this separated position corresponding to a position in which the housing 15 and the farthest axially from the cartridge 1 1 while being in attachment configuration, and

- secondly the coupling position, which corresponds to an intermediate position of the pins 313 between the collar 319 and the extremal bottom of the notches

317.

To release the pin 313 of the neck 319, it is necessary to perform traction of the housing 15 away from the cartridge 1 1 aiming to locally and temporarily deform the collar 319 and the pin 313 passing through the cervix 319 thus deformed . The two pins 313 released from notch 317, it is said that the housing 15 is detached from the cartridge 1 1 Configuration.

The pins 313 and clamps 315 thus form attachment means of the housing 15 of the coupling base 45 of the cartridge 1 1. Configuration of attachment, the housing 15 is positioned at least approximately radially relative to the axis X2 cartridge while being axially "float". The movement of the housing 15 is therefore carried out according to a displacement direction substantially parallel to the X2 axis, between two extreme positions defined passes extremal 319 on the one hand, and contacting the first face 20 with the surface of the coupling base 45. These two extreme positions define the maximum positions between which the deflection takes place.

Configuration of attachment, that is said the fastening means are in a state

"Requested". In this case, the fastening means are biased to the extent that the pins 313 interact with the clamps 315 to retain the housing 15 attached to the cartridge 1 1. Indeed, the pins 313 rest on the collar 319 when attempting to remove the housing 15 of the cartridge 1 1 attachment configuration and thus mechanically loaded.

Similarly, if one attempts to move the housing 15 radially with respect to the cartridge 1 1, and the notches 312 are mechanically stressed laterally.

Thus, thanks to the attachment means described above, the housing 15 may be integral with the cartridge 1 1 temporarily, which facilitates the mounting of the unit 2 within the body 4, to the extent that the unit 2 may be mounted integrally. When putting the housing 15 in spaced position, said fastening means, and in particular the grippers 315, securing the housing 15 by fastening configuration, via the pins 313.

The sliding of the mixing unit 2 in the body 4 is thus carried out through the cover 53 sliding within the wall 309, so that rotation of the unit 2 about the axis X4 is allowed. In order to easily position the unit 2 about the axis X4, two positioning pins January 31 protrude from the coupling base 45 downwardly parallel to the axis X2, so as to extend beyond the second side 24 of the housing 15. the barbs January 31 are distributed around the axis X2, and are provided to be inserted into corresponding positioning holes, not shown, formed through the coupling plate 23, so forming a rotational positioning system around the axis X4 of the unit 2. The barbs 31 1 allow to position both the housing 15 and the cartridge 1 1 when they are in attachment configuration. To facilitate assembly, the pins January 31 are shaped to slide within the coupling plate the positioning holes 23 so as not to impede the axial displacement of the unit 2 into the body 4.

The mixing unit 2 may be made integrally axially sliding along the axis X4 in the body 4 until it abuts against the coupling plate 23.

The cap 53 includes a shoulder 63 near its upper end, through which a nut 65 centered about the axis X2 cartridge, allows to press the mixing unit 2 against the coupling plate 23 . in practice, the nut 65 has an external thread 67 which is screwed into an internal thread 69 of the upper opening 9 of the body 4, the threads 67 and 69 being centered on the axis X2 cartridge. The nut 65 and the threads 67 and 69 thus form the clamping means along the axis of the body, the mixing unit 2 against the coupling plate 23. The tightening of the nut 65 permits a a hand setting position of the coupling housing 15 with the coupling base 45, and secondly a positioning of

In summary, to make the mixing valve 1, first configuration is brought into fastening the additional housing 15 in spaced position. We then introduced the mixing unit 2, thus formed, to slide in the body of host 4, until the housing 15 comes into axial abutment against the coupling plate 45. Finally, it clamps the unit mixture 2 against the coupling plate 45 with the nut 65, which has the effect of moving the housing 15 from its spacer position to the coupling position with the coupling base, and also coupling the second side 24 of the housing 15 with the coupling plate 23.

When the unit 2 is clamped between the nut 65 and the coupling plate 23, each of the pins 313 is in an intermediate position between the bottom of the notch 317 and the extremal neck 319, that is to say that the pins 313 are away from the neck 319, so that the fastening means are no longer solicited, and that the holding in position

coupling the housing 15 with the cartridge 1 1 inside the body 4 is predominantly or completely provided by tightening the nut 65.

The operation of the valve 1 and in particular the mixing unit 2 described below corresponds to operation in the case where the mixing unit 2 is in the coupling position in the body 4, under the pressure of the nut 65.

sealing between arrivals 5 and 6 and the inputs 19 and 21 respectively. It is understood that insertion of the pins 31 1 position into the coupling plate 23 for positioning the inputs 19 and 21 with respect to arrivals 5 and 6 respectively, to ensure proper connection.

As shown in Figure 2, the first incoming stream progresses along arrow F1 to the first inlet 19 and continues its travel through the additional housing 15 from bottom to top according to arrow F2 in a first conduit 25 which passes through the housing 15 from side 24 to side 20 and extending parallel to the cartridge axis X2 from the first inlet 19. the duct 25 guides the first incoming stream F2 to a mixing chamber 27 the cartridge 1 1.

The conduit baffle 32 then comprises a closable portion 29, by a shutter 33 which is described in more detail below, the closable portion 29 extending the first portion 31. Finally, the baffle duct 32 comprises a third portion 35 parallel to the axis X2 cartridge conducting the second inflow C2 until the cartridge 1 1 when in the coupling position with the housing 15. The third portion 35 extends the closable portion 29, the latter extending orthogonally to the first portion 31 and third portion 35 so that the baffle duct 32 form an "S". The third portion 35 opens into the mixing chamber 27 through the side 20, in the coupling position. by a shutter 33 which is described in more detail below, the closable portion 29 extending the first part 31. Finally, the baffle duct 32 comprises a third portion 35 parallel to the axis X2 cartridge conducting the second inflow C2 until the cartridge 1 1 when in the coupling position with the housing 15. The third portion 35 extends the closable portion 29, the latter extending orthogonally to the first portion 31 and third portion 35 so that the baffle duct 32 form an "S". The third portion 35 opens into the mixing chamber 27 through the side 20, in the coupling position. by a shutter 33 which is described in more detail below, the closable portion 29 extending the first part 31. Finally, the baffle duct 32 comprises a third portion 35 parallel to the axis X2 cartridge conducting the second inflow C2 until the cartridge 1 1 when in the coupling position with the housing 15. The third portion 35 extends the closable portion 29, the latter extending orthogonally to the first portion 31 and third portion 35 so that the baffle duct 32 form an "S". The third portion 35 opens into the mixing chamber 27 through the side 20, in the coupling position. axis X2 cartridge conducting the second inflow C2 until the cartridge 1 1 when in the coupling position with the housing 15. The third portion 35 extends closable portion 29, the latter extending orthogonally to the first portion 31 and third portion 35 so that the baffle duct 32 form an "S". The third portion 35 opens into the mixing chamber 27 through the side 20, in the coupling position. axis X2 cartridge conducting the second inflow C2 until the cartridge 1 1 when in the coupling position with the housing 15. The third portion 35 extends closable portion 29, the latter extending orthogonally to the first portion 31 and third portion 35 so that the baffle duct 32 form an "S". The third portion 35 opens into the mixing chamber 27 through the side 20, in the coupling position.

The mixing chamber 27 includes a first input 39 to the first flow F1, a second inlet 41 for the second flow C1, and an output 43 for outgoing flow M1. The inputs 39, 41 and the outlet 43 open surface of the coupling base 45 of the cartridge 1 1. The inputs 39 and 41 and the output 43 are distributed around the axis X2 cartridge.

Thus, in summary, the conduits 25 and 32 are connected respectively to the inputs 39 and 41 at the first side 20 when the housing 15 is in the coupling position with the coupling base 45 of the cartridge 1 1. It is understood that attachment configuration, the conduits 25 and 32 are already positioned opposite entries 39 and 41 respectively, so as to prepare the connection of these elements to each other by tightening the nut 65.

CLAIMS

mixing unit (2; 102; 202) for a mixer valve (1), comprising:

- a cartridge (1 1), which includes mixing means (13) for fluid flow, and is provided with a coupling base (45) having:

o a first input (39) of a first incoming stream (F1, F2, F3) of fluid having a first temperature (Tf),

o a second input (41) of a second inflow (C1, C2, C3) of fluid having a second temperature (Tc) higher than the first temperature, and

o an outlet (43) for an output stream (M1, M2, M3, M4) obtained using the mixing means (13) by mixing of the first inflow and the second inflow, and

- an additional housing (15) which is adapted to be in a coupling position with the coupling base (45), the housing containing additional thermostatic means (73, 87) which, when the additional housing is coupling position is arranged to change the flow of the first incoming stream and / or second incoming stream as a function of the temperature of the output flow,

the mixing unit (2) being characterized in that it further comprises fastening means (313, 317; 313, 327; 413, 414, 415, 417) for carrying the additional housing (15) in an attachment configuration of additional housing on the coupling base (45) configuration in which the fastening means allow movement of the additional housing relative to the cartridge (1 1) between the coupling position and a position the spacer further housing relative to the cartridge, and in that, in the separated position, the fastening means are designed to retain the additional housing attachment configuration.

2. - Mixing unit (2; 202) according to claim 1, characterized in that the cartridge (1 1) has a generally cylindrical shape, defining an axis of cartridge

(X2) and ending with the coupling base (45) through which the cartridge axis, the fastening means (313, 317; 413, 414, 415, 417) being designed so that the deflection of additional housing (15) is effected in a direction of movement substantially parallel to the axis of cartridge.

3. - The mixing unit (202) according to claim 2, characterized in that the coupling base (45) comprises positioning means (71B, 421) of additional housing (15) in rotation relative to the cartridge (1 1) around the cartridge axis (X2), the positioning means allowing a translation of the additional housing relative to the cartridge along the cartridge axis.

4. - mixing unit (202) according to claim 3, characterized in that the positioning means (421) comprises a railing (421) projecting from the coupling base (45) parallel to the axis of cartridge ( X2), the additional housing (15) comprising, at its periphery, a recessed portion (423) for receiving the parapet (421).

5. - The mixing unit (202) according to any one of claims 2 to 4, characterized in that the attachment means (413, 414, 415, 417) comprise at least one retaining claw (414) secured the coupling base (45) and at least one lug (415) projecting from the additional housing (15), the lug being adapted to be retained between the claw and the coupling base (45) in configuration attachment, the claw being positioned so as to allow a displacement of the additional housing (15) between two end positions along the cartridge axis (X2) defining the clearance.

6.- mixing unit (2; 202) according to any one of the preceding claims, characterized in that the attachment means (413, 414, 415, 417) comprise firstly at least one tab (413) projecting the additional housing (15), and secondly a hook (417) disposed on the coupling base (45) and adapted to receive the tab in attachment configuration, so as to keep this lug therein while permitting deflection of the lug in the hook between two end positions defining the clearance.

7.- mixing unit (2) according to any one of the preceding claims, characterized in that it comprises at least one seal (305, 307) of the coupling between the additional housing (15) and coupling base (45), placing in the coupling position of additional housing causing compression of the joint to ensure sealing of the coupling of additional housing on the coupling base.

8. - mixing unit (2) according to any one of the preceding claims, characterized in that the additional housing (15) comprises:

- a first side (20) intended to bear against the coupling base (45) when the additional housing is in the coupling position,

- a second side (24) opposite the first side, and

- at least a first conduit (25) and a second conduit (32) through the housing from the first side to the second side and being adapted to be connected respectively to the first input (39) and to the second input (41 ) at the first side when the additional housing is in the coupling position.

9. - Mixing valve (1) comprising a reception body (4) of a mixing unit (2) according to any one of the preceding claims, the host body comprising:

- an annular wall (309) defining a body axis (X4) and being adapted to receive the mixing unit therein, slidingly along the body axis,

- a coupling plate (23) of additional housing (15), which is fixedly disposed within the annular wall,

- clamping means (65), along the axis of the body, the mixing unit against the coupling plate, allowing on one hand a bid in the coupling position of additional housing with the coupling base (45), and secondly setting a coupling position of additional housing with the coupling plate.

10. - Method for manufacturing a mixer tap (1) according to claim 9, the method comprising the following successive steps:

a) patterned attachment of additional housing (15) on the coupling base (45) in spaced position by means of attachment means (313, 317; 323, 327; 413, 414, 415, 417) which are then requested, b) introduction of the mixing unit (2) thus formed in the receiving body (4) until the mixing unit comes into abutment against the linking plate, c) clamping the mixing unit against the coupling plate, for passing the additional housing of the spacer position to the position

coupling with the coupling base (45), so that the fastening means (313, 317; 313, 327; 413, 41 14, 415, 417) are no longer solicited.