WO2023156902A1

WO2023156902A1 - Multipurpose wall-mounted wash basin

Info

Publication number: WO2023156902A1
Application number: PCT/IB2023/051336
Authority: WO
Inventors: Rihad TOLGUI
Original assignee: Tolgui Rihad
Priority date: 2022-02-15
Filing date: 2023-02-14
Publication date: 2023-08-24
Also published as: FR3132724A1; FR3132724B1

Abstract

The invention relates to a multipurpose wall-mounted wash basin comprising: - a bottom wall extending between a first and a second end across a vertical plane; - a front wall extending from the first end away from said vertical plane as far as a first height along a vertical axis; - a back wall extending from the second end away from the vertical plane as far as a second height along said vertical axis; - a first and a second side wall connecting the front wall, the back wall and the bottom wall so as to define an interior space of the wash basin; - the first and/or the second side wall having a third height along said vertical axis that is less than the first and than the second height so as to create a lateral passage toward said interior space.

Description

Multifunction wall-hung washbasin bowl

The present invention relates to a multifunction suspended washbasin bowl and to a sanitary appliance, in particular a washbasin, incorporating such a bowl.

The term “bowl” here means a tray, a basin, a basin or, more generally, a container or a hollow body intended to equip a sanitary appliance, in particular a washbasin, which is used for washing. A sink comprises, in fact, essentially a hollow body, forming said bowl, provided with a water distributor and a drain device.

A major drawback of existing suspended washbasins is that they are often intended for a specific use such as a hand wash, a forearm wash or a head wash. Improper use of the washbasin is often uncomfortable and leads to water spraying the floor around the washbasin and the edges of the bowl, something not only unpleasant but sometimes dangerous (risk of slipping or humidity for example).

Existing wall-hung washbasin bowls are not configured for comfortable foot washing. The user is forced to raise his foot above the suspended washbasin bowl to place his foot there uncomfortably in unstable support. Such acrobatics is not without risk, both for the stability of the suspended washbasin and for the user. This user can be an elderly, obese or potbellied person, a pregnant woman, a person wearing clothing that restricts the movement of their foot, or more generally a person, for various reasons, who is unable to lift their foot high enough to move it to the above the edges of the suspended bowl. If cleaning the foot by rubbing it with one or two hands is necessary, then it is even more painful for the user who puts him at risk of slipping reinforced by the humidity and his unstable balance.

As for the fixing of the suspended bowls, it is generally not intended to support a mainly vertical pressure such as that caused by the support of a foot placed in a suspended bowl by a user seeking to maintain his balance.

It is known from the state of the art of sanitary appliances placed on the floor integrating a basin allowing several grooming treatments such as washing the face, hands, forearms and/or feet. However, these devices placed on the floor require a seat acting as a seat (incorporated or not), which makes them bulky and unsuitable for small sanitary rooms. By incorporating a seat, these devices are also relatively complex and expensive to manufacture. Also, the use of these devices is limited by constraints specific to the seat such as its capacity, its accessibility, and/or its distance from the valve. In addition, washing the feet in a seated position effectively by means of the hands requires that the user's trunk be as close as possible to his thighs, a physically demanding exercise for many people, especially when both legs are stretched. .

In addition, the seat of a sanitary appliance placed on the floor is often exposed to wetting which, if not tried on beforehand, can be a source of inconvenience for the user (in heavily frequented public sanitary premises or when it is successively used by several people, the seat is almost always wet or at least damp because of its proximity to the bowl). Finally, sitting down to wash unnecessarily prolongs the time required, especially when cleanliness care is to be done several times a day, for example, as part of a ritual or to access/leave a place requiring such care. .

An object of the present invention is to at least partially overcome the aforementioned drawbacks.

Another object of the present invention is to provide a multifunctional suspended washbasin bowl allowing comfortable washing of several organs of the body.

Another object of the present invention is to provide a sanitary appliance of convenient and comfortable use for washing the face, hands, forearms, feet and/or head.

For this purpose, it is proposed, in the first place, a multifunction suspended washbasin bowl comprising
- A bottom wall extending between a first end and a second end opposite the first end, the first end and the second end being on either side of a vertical plane passing through the bottom wall;
- a front wall connected to the first end of the bottom wall;
- a rear wall connected to the second end of the bottom wall, the rear wall and the front wall facing each other;
- the front wall extending from the first end away from said vertical plane to a first height along a vertical axis of said vertical plane;
- the rear wall extending from the second end away from the vertical plane to a second height along said vertical axis;
- A first side wall and a second side wall connecting, on either side of the bottom wall, the front wall, the rear wall and the bottom wall so as to define an interior space of the washbasin bowl;
- the first side wall and/or the second side wall comprising a lower part located between the front wall and the rear wall, this lower part having a third height along said vertical axis lower than the first height and the second height so as to creating a side passage to said interior space;
- A substantially planar support rear face parallel to said vertical plane intended to be fixed to a support, the rear wall being located between said vertical plane and the support rear face.

Various additional features may be provided, alone or in combination:
- the front wall extends in a first general direction forming a first acute angle with the vertical plane, this first angle being greater than 45 degrees, between 50 and 60 degrees, or substantially equal to 56 degrees;
- the rear wall extends in a second general direction making a second acute angle with the vertical plane, this second angle being less than 45 degrees, between 20 and 30 degrees, or substantially equal to 26 degrees;
- The rear wall comprises at least one footrest intended to receive at least partially the sole of a foot, this footrest incorporating a plurality of bulges;
- the first or the second side wall has a height, along said vertical axis, decreasing from the front wall to the rear wall;
- the lower part is connected to the rear wall, the lower part having a free edge forming an obtuse angle with the rear wall;
- Said obtuse angle is between 100 and 125 degrees;
- The lower part extends between the front wall and the rear wall;
- The front wall comprises a free edge, this free edge incorporating a rounded indentation capable of receiving the neck or a calf of a user.

Secondly, there is a sanitary appliance comprising the multifunction suspended washbasin bowl presented above.

Other characteristics and advantages of the invention will appear more clearly and concretely on reading the following description of embodiments, which is made with reference to the appended drawings in which:

the figure is a perspective view of a multipurpose wall hung lavatory bowl according to various embodiments;

the figure is a side view of the lavatory bowl of figure ;

The figure is a cross-sectional view of the lavatory bowl of Figure ;

the figure schematically illustrates a use of the sink bowl of FIG. .

Referring to the appended figures, there is shown a bowl 1 of multifunction suspended washbasin integrating a wall 2 of the bottom. This bottom wall 2 extends between a first end 21 and a second end 22 . Second end 22 is opposite first end 21 .

The first end 21 and the second end 22 are on either side of a vertical plane P passing through the bottom wall 2 . The vertical plane P is a plane parallel to the direction of gravity. In one embodiment, the vertical plane P includes a longitudinal axis and/or an axis of symmetry of the bottom wall 2 . This bottom wall 2 is, for example, of generally rectangular shape, the first and second end 21 , 22 being in the direction of the length of the bottom wall 2 .

The bowl 1 of the multifunction suspended washbasin also comprises a front (or front) wall 3 and a rear wall 4 connected, respectively, to the first end 21 and to the second end 22 of the wall 2 at the bottom. The front wall 3 and the rear wall 4 face each other. The front wall 3 and the rear wall 4 are in the same half-space delimited by a horizontal plane perpendicular to the vertical plane P and passing through the bottom wall 2 .

The front wall 3 and the rear wall 4 extend, respectively, from the first end 21 and from the second end 22 while moving away from each other. Indeed, the front wall 3 and the rear wall 4 diverge from the bottom wall 2 or, in other words, converge towards the bottom wall 2 .

The front wall 3 extends from the first end 21 away from the vertical plane P to a first height h 1 along a vertical axis of the vertical plane P. The rear wall 4 extends from the second end 22 away from the vertical plane P up to a second height h 2 along said vertical axis. The front wall 3 and the rear wall 4 widen starting from the bottom wall 2 on either side of the vertical plane P. The second height h 2 is greater than the first height h 1 .

In one embodiment, the front wall 3 and the rear wall 4 are substantially planar. Alternatively, the front wall 3 may be slightly concave towards the inside of the washbasin bowl 1 or towards the rear wall 4 . The rear wall 4 can also be slightly concave towards the inside of the washbasin bowl 1 or substantially flat with two rounded opposite side edges. The rear wall 4 may, in fact, have in cross section the shape of a flattened mathematical parenthesis or that of a parenthesis hook with rounded corners.

The front wall 3 extends in a first general (or mean) direction D 1 forming a first acute angle A 1 with the vertical plane P. This first angle A 1 is, in one embodiment, greater than 45 degrees or, more preferably, between 50 and 60 degrees or between 50 and 65 degrees such as 48, 52, 56, 60, or 64 degrees.

The rear wall 4 extends in a second general (or mean) direction D 2 forming a second acute angle A2 with the vertical plane P. This second angle A2 is, in one embodiment, less than 45 degrees or, more preferably, between 15 and 40 degrees or even between 20 and 30 degrees such as 22, 24, 26, or 28 degrees.

The rear wall 4 comprises at least one footrest 5 intended to receive at least partially the sole of a foot. This footrest 5 comprises, in one embodiment, a plurality of bulges 51 (of bosses, reliefs, or projections) for good grip of the foot on the rear wall 4 . The bulges 51 are arranged so as to channel/guide the flow of water under the effect of the force of gravity towards the bottom wall 2 of the basin 1 of the washbasin. The bulges 51 are smooth in order to avoid splashing water. Advantageously, these bulges 51 promote adhesion of the user's foot to the rear wall 4 , while avoiding the retention and projection of washing water.

In one embodiment, the footrest 5 is an integral part of the rear wall 4 (attached or obtained by deformation of the rear wall 4 ). In combination or alternatively, the footrest 5 comprises a non-slip mat fixed to the rear wall 4 in a detachable or removable manner. Means for fixing and quick release of the footrest 5 can comprise, for example, suction cups. In this case, non-slip mats of different shapes, sizes, colors and/or patterns can be considered to meet the individual needs of users.

Preferably, the rear wall 4 comprises a pair of footrests 5 arranged on either side of a vertical plane of symmetry of the rear wall 4 , as illustrated by the . The footrest 5 is, in one embodiment, in the general form of a sole allowing the user to recognize intuitively where to put his foot to wash it.

A first side wall 6 and a second side wall 7 connect, on either side of the bottom wall 2 , the front wall 3 , the rear wall 4 and the bottom wall 2 so as to define an interior space of the washbasin bowl 1 . The bottom wall 2 , the front wall 3 , the rear wall 4 , and the side walls 6 , 7 together form a tray, a basin or, more generally, an interior space for collecting the washing water.

The first side wall 6 and the second side wall 7 face each other. The first side wall 6 and / or the second side wall 7 are, in one embodiment, substantially flat or concave towards the interior space of the basin 1 of the washbasin (or convex towards the outside of the basin 1 of the washbasin) . The side walls 6 , 7 are substantially vertical and perpendicular to the vertical plane P. Alternatively, the side walls 6 , 7 flare out starting from the bottom wall 2 . In other words, the side walls 6 , 7 extend from the bottom wall 2 while moving away from each other.

The first side wall 6 and / or the second side wall 7 comprise a lower part 61 , 71 located between the front wall 3 and the rear wall 4 . This lower part 61 , 71 has a third height h 3 along a vertical axis of the vertical plane P lower than the first height h1 of the front wall 3 and the second height h2 of the rear wall 4 so as to create a side passage 8 towards the interior space of the washbasin bowl 1 . In one embodiment, the lower part 61 , 71 extends between the front wall 3 and the rear wall 4 (i.e. the entire side wall 6 , 7 located between the front wall 3 and the rear wall 4 ). In another embodiment, the lower part 61 , 71 (i.e. the reduction in height) of the side wall 6 , 7 is connected to the rear wall 4 (i.e., on the side of the rear wall 4 ). More generally, at least one of the lateral parts 6 , 7 is, between the front wall 3 and the rear wall 4 , at least partially in height, along a vertical axis, lower than the first height h1 and the second height h2 so to create a side passage 8 to the interior space.

This advantageously results in the user being able to pass his foot through the side passage 8 above the lower part 61 , 71 without having to lift his foot up to the height h 1 of the front wall 3 . A user standing in front of the front wall 3 can, in fact, lift the leg bent at the knee at the level of the front wall 3 and the foot at the level of the lower part 61 , 71 and, by a substantially horizontal rotational movement, introduced via the side passage 8 , his foot in the basin 1 of the sink to put it on the footrest 5 nearest. A concave/rounded shape of the front wall 3 makes it possible to avoid sharp angles as well as to facilitate the rotation of the lower limb to place the foot on the footrest 5 .

In embodiments illustrated by the appended figures, each of the side walls 6 , 7 comprises a lower part 61 , 71 of height h 3 less than the heights h 1 , h2 of the front and rear walls 3 , 4 so as to have two passages 8 side between the walls 3 , 4 front and rear allowing access to the interior space of the bowl 1 sink.

The side wall 6 , 7 is, in one embodiment, in height, along a vertical axis of the vertical plane P , decreasing or strictly decreasing from the front wall 3 to the rear wall 4 . For example, the height of the side wall 6 , 7 is, along said vertical axis, strictly decreasing with a first non-zero slope going from the front wall 3 to an intermediate position of the side wall 6 , 7 , then constant or decreasing with a second slope lower than the first slope going from said intermediate position towards the rear wall 4 (as illustrated by the appended figures).

By having a decreasing height between the front wall 3 and the rear wall 4 , the side wall 6 , 7 advantageously makes it possible to keep the leg bent to introduce the foot into the bowl 1 of the sink. A user in a standing position can thus comfortably bring his foot into the interior space of the washbasin bowl 1 without straining his leg.

The free edge 62 , 72 (i.e. the upper edge) of the lower part 61 , 71 forms, in one embodiment, an obtuse angle A3 with the rear wall 4 so as to avoid stretching of the ankle or foot to laterally access the interior space of the basin 1 sink. This obtuse angle A3 is, for example, between 90 and 120 degrees or, preferentially, between 100 and 125 degrees or between 110 and 120 degrees such as 116 degrees. While standing in a standing position in front of the front wall 3 (see ), a user can thus pass his foot through the lateral passage 8 created by the lower part 61 , 71 without effort to stretch his ankle or his foot so that the sole of his foot is quite naturally substantially parallel to the wall 4 rear to place it on the footrest 5 . The user of a sanitary appliance incorporating the washbasin bowl 1 can thus effortlessly place his foot on the footrest 5 in stable support so as to be able to free his hands.

Advantageously, the aforementioned angle formed by the rear wall 4 with the vertical plane P makes it possible, when the washbasin bowl 1 is suspended at a suitable height (defined according to an average size of its users), to receive the plant of foot of the user without stretching effort of the latter. Indeed, given the inclination of the rear wall 4 , the user comfortably places the full sole of his foot on the footrest 5 . Such support advantageously promotes the stability of the user so as to be able to free at least one of his two hands to possibly rub his foot or easily manipulate a water dispenser 43 (a hand shower, for example ) . By having one foot resting comfortably on the footrest 5 and the other on the ground, the user can wash his feet satisfactorily without the risk of losing his balance.

Advantageously, the flare of the front wall 3 and the rear wall 4 allows, in combination with the side passage 8 created by the particular profile of the side wall 6 , 7 , the user to easily insert his foot into the 1 sink bowl and wash it without any problems.

When a user has his foot resting on the footrest 5 , the front wall 3 can constitute, thanks to the aforementioned angle that it forms with the vertical plane P , a support for the calf so as to further improve the stability. of the user and the comfort of use of the basin 1 of the washbasin. When the sink bowl 1 is suspended at a suitable predefined height, the front wall 3 advantageously allows, thanks to the angle it forms with the vertical plane P , to protect the user from splashes of washing water. The front wall 3 thus acts as a splash guard.

The arrangement of the rear wall 4 and/or of the front wall 3 with respect to the vertical plane P and/or of the free edge 62 , 72 of the wall 6 1 , 7 1 low with respect to the rear wall 4 correspond to a use in a standing position of the washbasin bowl 1 , as illustrated by the . This washbasin bowl 1 is, in fact, intended to be suspended or placed at a predefined height associated with the functional configuration of its walls. The inclined arrangement of the rear wall 4 advantageously attenuates the impact on the stability of the suspended washbasin bowl 1 of pressure exerted by a foot resting on the footrest 5 .

In one embodiment, the washbasin bowl 1 can rest on at least one support, a column or a foot. Such a support makes it possible to support the basin 1 of the washbasin and/or hide any drain pipes and/or water supply pipes.

In embodiments illustrated by the accompanying figures, the side walls 6 , 7 extend beyond the rear wall 4 to a rear face 10 of support. In other words, the side walls 6 , 7 extend towards the rear of the washbasin bowl 1 beyond the rear wall 4 to the rear face 10 of support. The rear wall 4 is located between the vertical plane P and the rear support surface 10 . The rear support face 10 is intended to be fixed to a support. This rear bearing surface 10 is, in one embodiment, substantially planar parallel to the vertical plane P. The support can be a vertical wall 11 or the back support face of another washbasin bowl 1 placed back to back at a predefined height from the ground.

In one embodiment, the rear support surface 10 comprises a plurality of fixing points allowing the fixing of the washbasin bowl 1 against a vertical wall 11 (for example, arranged in a rim of the side walls forming a frame for a installation of the washbasin bowl 1 on the wall). More generally, the rear bearing face 10 can be defined by at least a part of a substantially planar bearing edge, at least a part of a bearing edge and a bearing point or at least three points support defining a rear face 10 of substantially planar support.

In one embodiment, the rear wall 4 comprises a horizontal flange 4 1 forming a substantially horizontal surface. This rim 41 can be towards the rear of the washbasin bowl 1 in the direction of the rear support surface 10 or towards the front of the washbasin bowl 1 in the direction of the front wall 3 . In the embodiments illustrated by the appended figures, the rim 41 extends as far as the rear face 10 of support. In one embodiment, the flange 4 1 forms a shelf or a tablet.

In another embodiment, the rear wall 4 is extended vertically upwards by a backsplash 4 2 .

At least one fixing hole is provided in the rear wall 4 , in its horizontal rim 41 and/or in the backsplash 42 is configured to receive a water dispenser 43 such as a faucet, a mixer, a mixer , a pull-out spray, a spray. This water dispenser 43 is provided with a manual or automatic control device .

Furthermore, the bottom wall 2 comprises a discharge orifice 23 allowing the discharge of a liquid collected in the bowl 1 of the washbasin. To facilitate this evacuation, the bottom wall 2 is, in one embodiment, slightly inclined towards the evacuation orifice 23 , or at least slightly concave towards the inside of the basin 1 of the washbasin so as to avoid stagnations of water in sink bowl 1 . The discharge orifice 23 is arranged at the lowest point of the bottom wall 2 . A drain device (a siphon or other suitable drain fitting) can be connected to the drain port 23 . This emptying device as well as the water dispenser 43 can be provided together with the washbasin bowl 1 or independently of it .

In one embodiment, the free edge 31 of the front wall 3 comprises a rounded notch 32 capable of receiving the neck (neck rest) of the user so that his head is bent forward in the interior space of washbasin bowl 1 . The basin 1 of the sink can thus be used as a head wash.

The rounded indentation 3 2 is also capable of receiving a user's calf (calf rest), in particular when he places his foot on the footrest 5 . This advantageously improves the stability and comfort of the posture of the user for washing his feet.

Various accessories can be fitted to the washbasin bowl 1 such as a towel rail attached to one or other of the side walls 6 , 7 , a soap dish arranged on the rear wall 4 , an overflow orifice ( overflow or drain hole) arranged in the front wall 3 or in the rear wall 4 .

A lining 33 of the front wall 3 extends from the free edge 31 of the front wall 3 to at least partially below the bottom wall 2 . In one embodiment, the lining 33 extends as far as the rear bearing surface 10 passing under the bottom wall 2 . The liner 33 may comprise an access hatch to the emptying devices and/or to the water supply means to which the water dispenser 43 is connected, and/or to attachment points on the rear face of the support.

A connection between the lining and the side walls 6 , 7 improves the stability of the basin 1 of the washbasin. In the example of the embodiments illustrated by the appended figures, the side walls 6 , 7 extend downwards from the washbasin bowl 1 beyond the bottom wall 2 and the front wall 3 up to the lining 33 . The extension of the side walls 6 , 7 to the rear bearing face 10 and the lining 33 of the front wall 3 form a housing capable of receiving the piping for the water supply and drain means.

The washbasin bowl 1 can be made of any material suitable for sanitary appliances. It can, for example, be made of ceramic (such as earthenware or iron clay), natural stone, stainless steel, composite material, plastic, polyester reinforced with fiberglass and/or enamel. . The washbasin bowl 1 can be made in a single piece or be composed of several parts assembled in a sealed manner.

A sanitary device, in particular a washbasin, incorporating the washbasin bowl 1 provided with a water distributor 43 and a draining device can be installed in an individual bathroom or , more generally, in any sanitary room for washing, in particular, of the hands, forearms, feet or head.

This sanitary device can, in particular, be installed at any place where a washing of the feet (or of objects covering at least partially these feet such as boots or flip flops) is required or desirable such as at the exit of a beach , at the entrance to a swimming pool or a sauna, or at the entrance/exit of an environment where the feet and/or the objects covering them are likely to be soiled by microbes or undesirable products ( construction sites, farms, food factories, quarantine areas, or slaughterhouses for example).

Advantageously, a sanitary appliance incorporating the washbasin bowl 1 presented above
- provides comfort of use by minimizing the physical effort required;
- promotes, thanks to the particular arrangement of the walls of the washbasin bowl, the balance of the user;
- limits washing water splashes;
- has a small footprint so that it can be installed in a space intended for a traditional suspended washbasin;
- is easy to maintain.

Claims

Bowl ( 1 ) of multifunction suspended washbasin comprising
- a bottom wall ( 2 ) extending between a first end ( 21 ) and a second end ( 22 ) opposite the first end ( 21 ), the first end ( 21 ) and the second end ( 22 ) being on either side and on the other side of a vertical plane ( P ) passing through the bottom wall ( 2 );
- A front wall ( 3 ) connected to the first end ( 21 ) of the bottom wall ( 2 );
- a rear wall ( 4 ) connected to the second end ( 22 ) of the bottom wall ( 2 ), the rear wall ( 4 ) and the front wall ( 3 ) facing each other;
- the front wall ( 3 ) extending from the first end ( 21 ) away from said vertical plane ( P ) to a first height ( h 1 ) along a vertical axis of said vertical plane ( P );
- the rear wall ( 4 ) extending from the second end ( 22 ) away from the vertical plane ( P ) to a second height ( h2 ) along said vertical axis;
- a first side wall ( 6 ) and a second side wall ( 7 ) connecting, on either side of the bottom wall ( 2 ), the front wall ( 3 ), the rear wall ( 4 ) and the wall ( 2 ) bottom so as to define an interior space of the washbasin bowl ( 1 );
- the first side wall ( 6 ) and/or the second side wall ( 7 ) comprising a lower part ( 61 , 71 ) located between the front wall ( 3 ) and the rear wall ( 4 ), this part ( 61 , 71 ) base having a third height ( h 3 ) along said vertical axis lower than the first height ( h 1 ) and the second height ( h 2 ) so as to create a lateral passage ( 8 ) towards said interior space;
- a substantially planar rear bearing face ( 10 ) parallel to said vertical plane ( P ) intended to be fixed to a support, the rear wall ( 4 ) being located between said vertical plane ( P ) and the rear face ( 10 ) of 'support.
Washbasin bowl ( 1 ) according to the preceding claim, characterized in that the front wall ( 3 ) extends in a first general direction ( D 1 ) making a first acute angle ( A 1 ) with the said vertical plane ( P ) , this first angle ( A 1 ) being greater than 45 degrees, between 50 and 60 degrees, or substantially equal to 56 degrees.
Washbasin bowl ( 1 ) according to Claim 1 or 2, characterized in that the rear wall ( 4 ) extends in a second general direction ( D 2 ) forming a second acute angle ( A 2 ) with the said plane ( P ) vertical, this second angle ( A 2 ) being less than 45 degrees, between 20 and 30 degrees, or substantially equal to 26 degrees.
Washbasin bowl ( 1 ) according to any one of the preceding claims, characterized in that the rear wall ( 4 ) comprises at least one footrest ( 5 ) intended to receive at least partially the sole of a foot, this footrest incorporating a plurality of bulges ( 51 ).
Washbasin bowl ( 1 ) according to any one of the preceding claims, characterized in that the first or the second lateral wall ( 6 , 7 ) is of height, according to the said vertical axis, decreasing in height from the wall ( 3 ) front towards the rear wall ( 4 ).
Washbasin bowl ( 1 ) according to any one of the preceding claims, characterized in that the lower part ( 61 , 71 ) is connected to the rear wall ( 4 ), the lower part ( 61 , 71 ) having an edge ( 62 , 72 ) free forming an obtuse angle ( A3 ) with the rear wall ( 4 ).
Washbasin bowl ( 1 ) according to the preceding claim, characterized in that said obtuse angle ( A3 ) is between 100 and 125 degrees.
Washbasin bowl ( 1 ) according to any one of the preceding claims, characterized in that the lower part ( 61 , 71 ) extends between the front wall ( 3 ) and the rear wall ( 4 ).
Washbasin bowl ( 1 ) according to any one of the preceding claims, characterized in that the front wall ( 3 ) comprises a free edge ( 31 ), this free edge ( 31 ) incorporating a rounded indentation ( 32 ) capable of receive the neck or calf of a user.
Sanitary appliance comprising the multi-function wall-hung washbasin bowl ( 1 ) of any preceding claim.