ES2260704T3 - SANITARY FAUCET ACCESSORY. - Google Patents

Abstract

Sanitary fitting comprises an assembly base (2) connected to at least one water supply, and an outer part (3) placed over the assembly base and consisting of a fitting housing and an outlet. Water flows from the assembly base to the outer part via at least one bore (11) in the assembly base. At least one seal (12) prevents the escape of water between the assembly base and the outer part. The bore opens into the casing of the assembly base. The seal surrounds the opening of the bore into the casing and points with its axis in the radial direction. A tensioning device (28, 29) laterally moves the outer part relative to the assembly base so that the seal is compressed between the outer part and the assembly base. Preferred Features: The seal is a stepped annular part with a region of small diameter and a region of greater diameter.

Description

Sanitary faucet accessory.

The invention concerns an accessory of sanitary faucet comprising

to)

       a mounting base that can be fixed to a support structure, especially to a sink or sink, and that you can join with at less a water supply pipe;

b)

       an outer part comprising a housing of the accessory of faucet and a spout and that can be plugged into the socket mounting,

C)

       at least one hole is provided in the mounting socket by the that water can flow from said mounting base to the part Exterior; Y

d)

       at least one joint is provided that acts between the socket of assembly and the outer part and that prevents water leakage.

In the sanitary fittings of this class, such as those described, for example, in documents WO 97/14853 A1, AT 347 866 A, EP 1,094 161 A2, EP 0 808 952 A1 or either DE 35 31 935 A, assembly in the structure of support fixing the latter first only the mounting base, on which the outer part can be plugged in later of the fitting of fitting and it can be put in communication of Water passage with mounting socket. This kind of accessory sanitary faucet also admits that during the completion of the inside a building first install just the socket of assembly and connect this to the domestic pipe while leave the assembly of an outer part for a later time correspondent. The user then has time relatively long to choose one that, among a large number of external parts available, must be used. For the manufacturer of sanitary fittings this mode of construction is linked to the additional advantage that they can be fix to the support structure sanitary fittings different with the same mounting base, which reduces costs of manufacturing.

Among these sanitary fittings accessories known are pure tap fittings with spout output in which the mounting socket is ultimately a simple coupling piece to transfer water to the spout exit. In other of these known sanitary fittings the outer part comprises, apart from the accessory housing of tap and outlet pipe, a complete valve; the socket of assembly is presented here also as a coupling piece pure. Finally, it is also possible to use the mounting base at the same time as a support for the control valve of the water flow, for example for a control cartridge, so that the outer part is constituted at the last end only by the faucet fitting housing and the attached spout with this.

In all sanitary fittings accessories known from the class cited at the beginning the boards that prevent the water outlet between the mounting socket and the outer part are placed in a ring shape around the enveloping surface of a cylindrical area of the mounting base, that is to say that they are arranged coaxially with respect to it. These boards are radially compressed by the cylindrical inner surface of the outer piece when plugging the latter. There is then the risk of the joints are damaged by existing edges on the surface inside of the outer piece.

The purpose of the present invention is to set up a sanitary fitting of the class mentioned at principle in such a way that damage is avoided to a very large extent caused to the joint arranged between the mounting base and the outer piece when plugging the latter.

This problem is solved according to the invention by the fact that

and)

       the water conduction hole of the mounting socket flows into the envelope surface thereof;

F)

         the gasket surrounds the mouth of the hole in the surface enclosure of the mounting socket and look with its axis in the direction radial;

g)

       a clamping device with which you can move is provided laterally the outer part with respect to the mounting base of such that the gasket is compressed between the outer part and the mounting socket.

Document DE8531987U describes a clamping device used to fix an outlet pipe to a sanitary mixer battery.

Unlike the state of the art, it is possible in the execution of the sanitary fitting according to the invention that, by plugging the outer part onto the socket of assembly, maintain such a gap between the joint and the surface internal of the outer piece that moves ahead of it that a contact between the piece can be avoided to a great extent outside and the board or, in any case, this is not done under the action of destructive forces. In the present invention causes compression of the seal that produces the sealing function only when the outer part is completely plugged in over the mounting base and then moves only in one direction in which said joint is compressed axially. So, the board is not then especially exposed to forces of shear of any kind.

It is convenient that the clamping device understand:

to)

       a transverse drill that extends through the socket of assembly and that, in an angular area, flows into the surface enclosure of the mounting socket in front of the area angle in which the water conduction hole flows into the wraparound surface, and that is provided with a thread inside;

b)

       a screwing piece arranged in the cross hole, which cooperates with its internal thread and can be unscrewed from the cross drill with one end and pressed against an inner surface of the outer piece.

Therefore, in this embodiment at screw the screwing piece into the internal thread of the cross hole of the mounting base moves the part outer laterally, that is, perpendicular to the axis of the mounting socket. Thus, the inner surface of Sealing of the outer part is then applied against the joint.

The joint can be a staggered ring piece with an area of smaller diameter and an area of greater diameter. To the less the area of smaller diameter is introduced in the hole of water conduction of the mounting socket, possibly under certain compression, with what is fixed there at least provisionally without the help of more fixing means. The step between the two zones of different diameters limits the extent to which you can insert the gasket into the hole. The largest diameter area is then the area that is compressed to produce the action of sealed.

Socket water conduction drill assembly can be configured in a manner complementary to the way of the seal in the vicinity of the mouth of said hole on the enclosure surface of the mounting base, that is to say it can be doubly staggered and present a first zone widened with respect to the area located upstream and a second zone again widened with respect to the first zone widened. In this case, the gasket is introduced in the hole of water conduit mounting socket not only with its area of smaller diameter, but also to a large extent with its larger area diameter, so, before the application of the outer part on the mounting base, only the outer area of the joint protrudes from the enclosure surface of the mounting base.

The outer part may have a drill of step through which a tool can be introduced to operate the clamping device.

The sanitary fitting according to the invention can also be configured as a faucet accessory with tilting spout. In this case, the spout is tiltable with respect to a non-rotating part of the piece outside and the joint cooperates with the rotating part of the piece Exterior.

A more detailed explanation is given below. exemplary embodiment of the invention using the drawing; show:

Figure 1, an axial section through a single lever basin mixer tap fixture;

Figure 2, an axial section through a gasket used in the fitting of figure 1; Y

Figure 3, an axial section through a kitchen faucet accessory with tilting spout.

The sanitary fitting shown in figure 1 and identified in conjunction with the symbol of reference 1 consists of a mixer tap fitting single lever that is intended as a fixed faucet accessory for your I use a sink. It comprises as main components a mounting socket 2 and an outer part in the form of a housing faucet accessory 3, described below with more detail.

The mounting socket 2 serves substantially for fixing to the sink not shown and also as a support for all functional parts of the fitting. Be it is in this case a substantially symmetrical piece in rotation with three coaxial zones of different diameters. Applies with the lowest zone 2a of maximum diameter on the upper side of the sink. A slot 4 on the lower front side of this zone 2a serves to receive a seal ring not shown. While this lower zone 2a has a relatively axial height small, zone 2b of mounting socket 2 located immediately above the anterior zone extends over most of the axial dimension of said socket. The uppermost zone 2c is a even smaller diameter neck with an outer thread 5.

A threaded drill 6 that runs parallel to the axis and that ends blind part of the lower front side of the socket mounting 2, and in this hole a bolt of fixing 7. A hole 9 of a mounting plate 8 receives the fixing bolt 7. The mounting plate 8 can be pressed against the underside of the sink not shown with the help of a screwing piece 10 that is bolted from the outside onto the fixing bolt 7. In this way, the mounting socket 2 and, therefore, ultimately all the fitting 1 can be fixed to the sink.

All mounting socket 2 is crossed by above and below the plane of the drawing in figure 1, symmetrically with respect to this, by a respective drill of water passage that extends from the lower front side of the mounting socket 2 to the upper front side surrounded by the 2c neck These feed holes are fed in a known way hot and cold water through rigid or flexible pipes that are not They have represented either.

In addition, the mounting socket 2 is crossed in its central zone 2c by a layered water conduction hole 11 which, starting from the frontal surface surrounded by the neck 2c, runs first down in a direction parallel to the axis, then it bends at a right angle and empties radially on the surface enclosure of zone 2c of mounting socket 2. Drill 11 is widens in the vicinity of the envelope surface of the socket of assembly 2 providing a first zone 11a with diameter somewhat enlarged and a second zone 11b with newly enlarged diameter. In the widenings 11a and 11b a gasket 12 is inserted which It presents an approximately complementary form of the widenings 11a, 11b of hole 11, as can be deduced especially also from figure 2. This means that the board 12 has an axial zone 12a whose outer diameter is slightly larger than the inside diameter of zone 11a of the drill, as well as an area 12b whose outer diameter is slightly larger than the inside diameter of zone 11b of the drill. The gasket 12 can be driven in this way, under a slight compression, in zones 11a, 11b of the drill. The length complete axial of the joint 12 is somewhat larger than the sum of the axial lengths of the zones 11a, 11b of the hole, so that, In the non-deformed state, the joint 12 protrudes slightly radially of hole 11 of mounting socket 2.

In the neck 2c of the mounting socket 2 is insert from the top the bottom of a control cartridge that it carries together the reference symbol 13 and which contains known way at least three command disks by whose relative movement you can adjust the amount and proportion of mixed of the water that comes out of it. The control cartridge 13 presents for this on its lower front side, which is applied to the upper front side - surrounded by neck 2c- of the socket assembly 2, some mouths of water channels that are aligned with the mouths of the socket holes Mounting 2 that feed water. Also, on the front side bottom of the control cartridge 13 is an opening of outlet for mixed water that communicates with drill 11 which extends through mounting socket 2.

The control cartridge 13 remains held in the mounting base 2 with the aid of a screw-in piece 14 a cap shape presenting an inner thread 15 in its lower wrap surface. If you screw the piece of screwing 14 with its inner thread 15 over the outer thread 5 of the neck 2c of the mounting socket, said part presses the control cartridge 13 down through a step formed in its outer contour. They are then compressed together that are arranged between the lower front side of the control cartridge 13 and the upper front side of the mounting socket 2 and that provide the correct transfer of water between the socket of assembly 2 and the control cartridge 13.

An upper cylindrical area 16 of the cartridge knob 13, reduced in diameter, extends through a drill axial 17 of the screwing piece 14. From this area 16 an adjustment rod 18 on which a handle 19 is seated by a positive coupling of shape. With the help of the handle 19, the shank of the fit 18 around a horizontal axis, so you can vary the amount of mixed water leaving the control cartridge 13. In addition, with the help of handle 19, zone 16 of the control cartridge 13 around a vertical axis, thereby can adjust the mixing ratio of cold water and water hot and therefore the temperature of the mixed water outgoing.

The control cartridge 13 described above and fixed to the bolting piece 14 from the mounting base 2 and with the help of it represents in itself and in itself an accessory of faucet capable of operating substantially completely, if well, of course, the aesthetic would not be satisfactory and the cantilever spout generally desired. For this reason, the separate housing 3 of the fitting is provided. This may consist of a casting or injection body of a single piece consisting of metal or plastic. The basic form of the faucet fitting housing 3 is in a known manner a cylinder 3a in which a blown spout 3b is formed. A substantially cylindrical housing space 20 of the Faucet accessory housing 3 contains the unit above mentioned constituted by the mounting socket 2, the cartridge knob 13 and screwing piece 14. A radially 21 rib protruding inward in the lower surface area housing space envelope 20 rests in assembled state on the step formed in the transition between zones 2a and 2b of the mounting socket.

The uppermost area 3c of the housing 3 of the faucet fitting is configured in a dome shape and it found substantially inside a skirt 22 formed in the handle 19. A step drill 23 in the dome-shaped zone 3b of the housing 3 of the fitting allows the union of the adjusting rod 18 of the control cartridge 13 with the handle 19.

The interior space 23 of the outlet pipe 3b it is separated from the accommodation space 20 by an inner wall 24 of the housing 3 of the fitting. The only union between the interior space 23 of the outlet pipe 3b and the space of housing 20 is formed by a radial passage bore 25 of the wall 24 that runs coaxially to zones 11a, 11b of the hole 11 of the mounting socket 2 when the housing 3 of the accessory faucet is mounted on the mounting socket 2. On the side of the hole 25 in which it flows into the space of housing 20 an annular flat sealing surface is formed 26 cooperating with the board 12.

The mounting socket 2 is crossed in its zone 2b by a step 27 bore somewhat inclined with respect to the horizontal, which is located in the plane of symmetry represented in figure 1. Its extreme area away from the pipe of outlet 3b is provided with an inner thread 28 in which it is arranged a rotating screwdriver 29. The piece of Screwing 29 is provided on its inner front surface, that is, oriented towards the side of the outlet pipe, of a polygonal opening that can cooperate with a tool corresponding screwing 30. To rotate the workpiece screwing 29, the screwing tool 30 is introduced first through a hole 30 of the housing 3 of the faucet fitting - which is aligned with the drill step 27 of the mounting socket 2- and then through the drill step 27 until it reaches the polygonal opening of the bolting piece 29.

The faucet accessory 1 above described is mounted as follows:

First, the mounting base 2 is fixed in the sink with the help of the fixing bolt 7, the mounting plate 8 and the screwing piece 10. Next, the control cartridge 13 on the mounting base 3 and said cartridge with the aid of the screwing piece 14. A Then, the housing 3 of the fitting is installed from above on mounting socket 2 until your nerve 21 protruding inwards rest on the step of the socket assembly 2 between zones 2a and 2b.

The diameter of the accommodation space 20 of the Faucet accessory housing 3 is so large - in the area that it has to pass through the joint 12 during this plugging movement- that gasket 12 cannot be damaged by surface edges enclosure of accommodation space 20 that travel by In front of her. Therefore, for the moment a slack between the outer front surface of the gasket 12 and the surface housing space envelope 20. However, when the Faucet accessory housing 3 is in position correct axial, the screw tool 30 is coupled with the screwing piece 29. The screwing tool 30 is now rotated so that the screwing piece get out of step 27 of the socket mounting 2 and apply pressure against the surrounding surface of the accommodation space 20. During this process the housing 3 of the faucet fitting in figure 1 substantially to the left, bringing the sealing surface 26 of the mouth of the hole 25 in the wall 24 between the space 23 of the outlet pipe 3b and the accommodation space 20 is pressed against the outer front surface of the seal 12. It is possible now a safe transfer of mixed water - which travel the hole 11 of the mounting socket 2- to the interior space 23 of the outlet pipe 3b. You can then remove the screwing tool 30.

The sanitary fitting 101 depicted in figure 3 consists of a fitting of taps kitchen with tilting spout. It is constituted in broad grade in the same way as the sink fitting 11 described above with reference to figures 1 and 2. By therefore, the corresponding pieces are identified with the same reference symbols increased by 100.

While in the first embodiment the complete outer part 3 was integral, in the example of embodiment of figure 3 the outer part comprises a bushing 103f plugged in a non-rotating manner over the mounting socket 102. On this bushing the housing 103 has been cut from above of the faucet built in one piece with the spout output 103b. The housing 103 of the faucet fitting is fixed to the mounting socket 102 in the axial direction through a ring 140 that is placed inside a surface groove outer shell of mounting socket 102 and inside a slot of the inner enveloping surface of the area 103a of the housing 103 of the faucet fitting, but said housing can be made swing around the shaft of bushing 103f. Between zone 103a of the housing 103 of the faucet fitting and mounting socket 102 O-rings 141, 142 are also located which form known way a friction brake and a guide and sealing the Slit between these two pieces.

The joint 112 cooperates with the bushing 103f, the which has a step drill 143 aligned with the step drill 125 of the housing 103 of the fitting.

The operation of the fitting of kitchen 101 according to figure 3 matches that of the accessory washbasin taps 1 according to figure 1. However, in the example embodiment of figure 3 can be tilted additionally the entire housing 103 of the fitting fitting together with the outlet pipe 103b.

Claims (6)

1. Sanitary faucet accessory (1) which understands

to)

       a mounting base (2; 102) that can be fixed to a structure of support, especially to a sink or sink, and that can join with at least one water supply pipe;

b)

       an outer part (3; 103) comprising an accessory housing of taps and an outlet pipe and that can be plugged into the mounting socket;

C)

       with at least one assembly being provided in the mounting base (2; 102) hole (11; 111) through which water can flow from the mounting base (2; 102) to the outer part (3; 103); Y

d)

       at least one joint (12; 112) being provided that acts between the mounting socket (2; 102) and the outer part (3; 103) and that prevents water leakage;

and)

       opening the hole (11; 111) of the plinth water conduction for mounting (2; 102) on the surrounding surface thereof;

F)

         surrounding the gasket (12; 112) at the mouth of the hole (11; 111) on the enclosure surface of the mounting base (2; 102);

characterized because

g)

       the seal (12; 112) looks with its axis in radial direction;

h)

       a clamping device (28, 29; 128, 129) is provided with the which can move the outer part laterally (3; 103) with with respect to the mounting socket (2; 102) such that the gasket (12; 112) is compressed between the outer part (3; 103) and the mounting socket (2; 102).

2. Sanitary fitting according to claim 1, characterized in that the clamping device comprises:

to)

       a transverse drill (27; 127) that extends through the mounting base (2; 102) and which, in an angular area, flows into the surrounding surface of the mounting socket (2; 102) that remains in front of the angular area in which the hole (11; 111) of water conduction flows into the enveloping surface, and that it is provided with an internal thread (28; 128);

b)

       a screwing piece (29; 129) arranged in the hole transverse (27; 127), which cooperates with the inner thread (28; 128) and can be unscrewed from the cross hole (27; 127) with one end and press against an inner surface of the piece exterior (3; 103).

3. Sanitary fitting according to claim 1 or 2, characterized in that the joint (12; 112) is a stepped annular piece with a zone (12a; 112a) of smaller diameter and an area (12b; 112b) of greater diameter. 4. Sanitary faucet accessory according to claim 3, characterized in that the water conduction hole (11; 111) is doubly stepped in the vicinity of its mouth in the enclosure surface of the mounting base (2; 102) and has a first zone (11a; 111a) widened with respect to the upstream zone and a second zone (11b; 111b) again widened with respect to the first widened zone (11a;
111a). 5. Sanitary fitting according to one of the preceding claims, characterized in that the outer part (3; 103) has a through hole (31; 131) through which a tool (30; 130) can be introduced to drive the clamping device (28, 29; 128, 129). 6. Sanitary fitting according to one of the preceding claims, characterized in that the outlet pipe (103b) is tiltable with respect to a non-rotating part (103f) of the outer part (103) and the joint (112) cooperates with the non-rotating part (103f) of the outer part (103).