CN109629208B

CN109629208B - Smoothing head comprising an internal chamber equipped with a steam discharge duct

Info

Publication number: CN109629208B
Application number: CN201811166471.4A
Authority: CN
Inventors: 马克西姆·雅威特
Original assignee: SEB SA
Current assignee: SEB SA
Priority date: 2017-10-05
Filing date: 2018-10-08
Publication date: 2023-02-03
Anticipated expiration: 2038-10-08
Also published as: CN109629208A; EP3467189A1; FR3072101A1; CN209468611U; FR3072101B1; EP3467189B1

Abstract

The smoothing head (6) comprises a front wall (10) equipped with a treatment face (12) and a steam distribution circuit (16), said steam distribution circuit (16) comprising an inlet duct (17), said inlet duct (17) having an inlet (18) intended to be connected to a steam conduit, said treatment face (12) comprising at least one steam outlet hole (13) and being intended to be opposite to the laundry to be smoothed. The inlet pipe (17) has an outlet (19), the outlet (19) opening into an inner chamber (21) tangentially to the front wall (10) such that steam exiting the outlet (19) flows along the front wall (10), the inner chamber (21) comprising a steam outlet pipe (29), the steam outlet pipe (29) extending transversely to the front wall (10) and communicating with the at least one steam outlet hole (13) such that steam present in the inner chamber (21) passes through the steam outlet pipe (29) and escapes towards the at least one steam outlet hole (13).

Description

Smoothing head comprising an internal chamber equipped with a steam discharge duct

Technical Field

The invention relates to a smoothing head of steam smoothing equipment.

Background

A steam smoothing device is known comprising a base unit intended to produce a flow of steam and a smoothing head connected to the base unit by a steam duct in which the steam produced by the base unit escapes freely towards the smoothing head, the smoothing head comprising a rear portion forming a grip handle and a front portion comprising a front wall containing a treatment face intended to be opposite the garment to be smoothed and equipped with a plurality of steam outlet holes through which the flow of steam from the base unit spreads. Such a plant is described, for example, in patent application US 2015252518.

When such a smoothing head is used, water droplets driven by the steam flow generated by the base unit are likely to be erupted or caught by capillary action through the at least one steam outlet hole and thus soil the laundry or cloth to be smoothed.

Disclosure of Invention

The present invention aims to overcome this disadvantage.

The technical problem on which the present invention is based is, in particular, to provide a smoothing head that is structurally simple and economical, while allowing to limit the risk of water droplets being erupted or caught by capillary action on the garment or cloth to be smoothed.

To this end, the invention relates to a smoothing head comprising a front wall equipped with a treatment face intended to be opposite a garment to be smoothed, the treatment face comprising at least one steam output hole, the steam distribution circuit comprising an inlet duct comprising an inlet intended to be connected to a steam conduit, characterized in that the inlet duct comprises an outlet opening tangentially to the front wall into an inner chamber so that the steam exiting the outlet flows along the front wall, the inner chamber comprising a steam outlet duct extending transversely to the front wall and communicating with the at least one steam output hole so that the steam present in the inner chamber passes through the steam outlet duct and escapes towards the at least one steam output hole.

Such a configuration of the pacifier, more particularly of the steam outlet duct and the outlet, is such that steam entering the inner chamber flows around the steam outlet duct and thus heats the steam outlet duct before the steam escapes outside the pacifier without the steam outlet duct and the at least one steam outlet hole. Such heating of the steam outlet pipe, in turn, greatly limits the condensation of water droplets on the inner wall of the steam outlet pipe and thus limits the water droplets from being erupted and/or intercepted by capillary action through the at least one steam outlet hole.

In addition, the configuration of the steam outlet pipe transversally to the front wall, and therefore perpendicularly to the configuration of the flow of steam exiting the outlet at the outlet, facilitates the flow in the inner chamber before the steam enters the steam outlet pipe, which allows to separate at least a portion of the water droplets driven by the steam from the steam flow, and even limits the risk of the water droplets erupting through the at least one steam outlet aperture.

The advantages of the smoothing head according to the invention are therefore simple and economical to implement, while at the same time greatly limiting the risk of water droplets spraying on the clothing or cloth to be smoothed.

The stroking head may additionally have one or more of the following features, taken alone or in combination.

According to one embodiment of the invention, the outlet opens into the interior chamber at a position which is adjusted such that trajectories of water droplets which are driven by the steam flow and which are sprayed at the outlet into the interior chamber do not pass through the at least one steam outlet aperture.

According to one embodiment of the invention, the steam outlet pipe extends substantially perpendicular to the front wall.

According to one embodiment of the invention, the outer surface of each steam exhaust pipe comprises ribs, preferably longitudinal ribs, in order to increase the heat exchange surface area between steam and said steam exhaust pipe. The outer surface of each steam exhaust pipe may be serrated, for example.

According to one embodiment of the invention, the treatment surface is flat and has a substantially triangular shape in profile.

According to one embodiment of the invention, the inlet duct has a constant passage cross-section. The configuration of the inlet pipe allows to ensure that the steam maintains a constant velocity throughout its passage through the inlet pipe, avoiding cooling by depressurization in large spaces.

According to one embodiment of the invention, the inlet pipe has a round passage cross-section at the inlet and a flat passage cross-section at the outlet.

According to one embodiment of the invention, the inlet pipe has a 90 ° bend upstream of the outlet. The presence of such bends causes an acceleration of the steam flow flowing in the inlet pipe and therefore promotes the separation of the water droplets driven by the steam flow from said steam flow. More specifically, these separated water droplets are sprayed onto the outer wall of the elbow and then blown out by the steam flow along the front wall and in the opposite direction to said outlet.

According to one embodiment of the invention, the bend has an inner radius of curvature of between 3.5 and 4.5mm and an outer radius of curvature of between 9 and 11 mm. Advantageously, the bend has an inner radius of curvature of 4mm and an outer radius of curvature of 10mm.

According to one embodiment of the invention, the inner chamber comprises a first diffusion chamber arranged between the inner face of the front wall and a first face of the separating wall extending inside the inner chamber, and a second diffusion chamber partially delimited by a second face of the separating wall opposite to the first face of the separating wall, the second diffusion chamber being in communication with the first diffusion chamber.

According to one embodiment of the invention, the outlet opens into an upper part of the inner chamber, and preferably into the vicinity of the top end of the inner chamber.

According to one embodiment of the invention, the outlet opens into the first diffusion chamber, and for example into the vicinity of the top end of the first diffusion chamber.

According to one embodiment of the invention, the first diffusion chamber is crossed by a steam discharge pipe that protrudes from the inner face of the front wall and opens into the second diffusion chamber.

According to one embodiment of the invention, the treatment surface comprises a plurality of steam outlet holes, and each steam outlet pipe coincides with a respective steam outlet hole.

According to one embodiment of the invention, the steam outlet pipe has an accumulated passage cross section, which substantially corresponds to the passage cross section of the inlet pipe.

According to one embodiment of the invention, the passage cross-section of each steam exhaust duct is elliptical and has a decreasing width in the direction opposite to the outlet.

According to one embodiment of the invention, each steam exhaust pipe has a channel cross-section in the shape of a water droplet, the tip of which points in the opposite direction of the outlet and, for example, to the bottom.

According to one embodiment of the present invention, each steam discharge pipe has a blocking rib protruding into the interior of the steam discharge pipe and forming a blocking against the flow of water droplets in a direction along the steam discharge pipe toward the at least one steam outlet hole. These arrangements also assist in preventing water droplets from erupting through the at least one steam outlet aperture.

Advantageously, the blocking rib of each steam exhaust pipe is arranged substantially at one end of the respective steam exhaust pipe facing the at least one steam outlet hole.

According to one embodiment of the invention, each steam exhaust duct comprises a lower opening which opens into the inner chamber, and preferably into the first diffusion chamber. These arrangements allow a small amount of condensate, which may form in each steam outlet pipe, to be discharged into the inner chamber, which further limits the risk of water droplets being sprayed out of the smoothing head through the at least one steam outlet hole.

According to one embodiment of the invention, the internal chamber comprises a condensate drain communicating with a condensate return circuit. These arrangements allow condensate formed in the inner chamber to be drained outside said inner chamber and thus further limit the risk of water droplets being ejected through the at least one steam outlet hole. In particular, the separated water droplets in the bend are blown by the steam flow along the front wall and towards the condensate discharge opening.

According to one embodiment of the invention, the condensate outlet is provided in a position towards which water present in the interior chamber naturally flows due to gravity when the smoothing head is oriented in the position of daily use.

According to one embodiment of the invention, the condensate drain is provided at the base of the inner chamber.

According to one embodiment of the invention, the inner chamber comprises a lower wall having a condensate drain. The condensate discharge opening is arranged, for example, in a central portion of the lower wall of the inner chamber.

According to one embodiment of the invention, the lower wall is curved. These arrangements further promote separation of at least a portion of water droplets driven by steam flowing in the interior chamber from the steam flow and further limit the risk of water droplets erupting through the at least one steam outlet aperture. In fact, the largest water droplets transported by the steam remain stuck to the curved surface under the effect of centrifugal force.

According to one embodiment of the invention, the condensate return circuit has a condensate storage chamber which is arranged in the smoothing head, advantageously below the lower wall of the inner chamber.

According to one embodiment of the invention, the condensate storage chamber is arranged such that a wall of the condensate storage chamber prevents condensate contained in the condensate storage chamber from flowing in the internal chamber when the flat head is tilted relative to the horizontal.

According to one embodiment of the invention, the vapour discharge conduit is located remotely from the condensate drain and advantageously remotely from the condensate storage chamber.

According to one embodiment of the invention, the first diffusion chamber has a passage section that gradually decreases along the circulation direction of the steam in the first diffusion chamber. These arrangements allow to accelerate the flow of vapour in the first diffusion chamber and thus to promote the blowing of condensate opposite the inlet and in particular towards the condensate discharge.

According to one embodiment of the invention, the condensate outlet opens into the condensate storage chamber.

According to one embodiment of the invention, the condensate return circuit leads to the steam conduit or the inlet pipe. These arrangements allow the condensate to be redirected into the steam conduit so that the condensate slides along the steam conduit due to gravity and falls back into the steam generator of the base unit where it will then be evaporated again.

According to one embodiment of the invention, the condensate return circuit comprises a return pipe comprising a first end portion fluidly connected to the condensate discharge and a second end portion opposite the first end portion.

According to one embodiment of the invention, the second end portion of the return pipe protrudes into the inlet pipe, for example by a few millimetres. These arrangements allow, in particular, to prevent any condensate that would flow along the inner wall of the inlet pipe in the direction of the inlet pipe from entering the return pipe and filling it.

According to one embodiment of the invention, the second end portion of the return duct projects into the vicinity of the inlet duct.

Advantageously, the second end portion of the return duct is chamfered (biseaute é e). These arrangements allow liquid flowing in the return pipe to be directed towards the tip of the return pipe and thus help to unblock the return pipe. In addition, the chamfered shape of the return duct allows to promote the steam flow flowing in the inlet duct to pass on both sides of the obstacle. The fact that the return duct is chamfered also allows to partially avoid the entry of steam into the return duct when it passes for the first time in the smoothing head (in normal operation, the water present in the return duct prevents the steam from reaching the smoothing head again).

According to an embodiment of the invention, the return pipe is configured to be inclined with respect to the horizontal line when the front wall extends substantially vertically. These arrangements facilitate the flow of condensate contained in the condensate storage chamber towards the vapour conduit or the inlet pipe and thus avoid the accumulation of condensate in the cavity of the condensate storage chamber.

According to one embodiment of the invention, the return pipe has a substantially constant passage section.

According to one embodiment of the invention, the first end portion of the return pipe opens into the condensate storage chamber.

According to one embodiment of the invention, the smoothing head comprises a main body at least partially delimiting the internal chamber and a soleplate which is scarf-jointed to the main body and comprises a front wall and a steam outlet pipe. Advantageously, the base plate is unitary and made of a plastic material.

According to one embodiment of the invention, the floor further comprises a separating wall.

According to one embodiment of the invention, the body comprises a stop surface against which the separating wall abuts.

According to one embodiment of the invention, the smoothing head comprises a cleaning opening which opens into the condensate storage chamber and the front wall closes the cleaning opening in a removable manner.

According to one embodiment of the invention, the body comprises an internal cavity and an access opening, which opens into the internal cavity, the front wall preferably closing the access opening in a removable manner. Advantageously, the inner chamber is delimited by an inner wall of the inner cavity and the front wall.

According to one embodiment of the invention, the inlet duct comprises at least one guiding rib extending over at least a part of the length of the inlet duct and configured to guide the flow of steam in the inlet duct.

The invention further relates to a smoothing device comprising a base unit with a steam generator and a smoothing head as described above.

According to one embodiment of the invention, the condensate return circuit leads to a reservoir carried by the base unit.

Drawings

The invention will be better understood with the aid of the following description of a plurality of embodiments of this smoothing head, illustrated as non-limiting examples with reference to the schematic drawings.

Fig. 1 shows a perspective view of a steam smoothing device according to a first embodiment of the invention;

fig. 2 shows a perspective view of a smoothing head belonging to the smoothing device of fig. 1;

fig. 3 shows a longitudinal section of the smoothing head of fig. 2;

fig. 4 shows an exploded perspective view of the smoothing head of fig. 2;

fig. 5 shows a top view of the bottom plate of the smoothing head of fig. 2;

figure 6 shows a perspective view of the bottom plate of figure 5;

figure 7 shows a perspective cross-section of the bottom plate of figure 5;

fig. 8 shows an exploded perspective view of a smoothing head according to a second embodiment of the invention;

fig. 9 shows a schematic view of a smoothing device according to a third embodiment of the invention.

Detailed Description

It is noted that in this context, the terms "lower", "upper", "front" and "rear" used to describe the smoothing device refer to the smoothing device when its base plate extends vertically and in normal use.

Fig. 1 to 7 show a smoothing device 2 according to a first embodiment of the invention.

The smoothing device 2 comprises a base unit 3 and a smoothing head 6, the base unit 3 having a liquid reservoir 4 and a steam generator 5, the smoothing head 6 being connected to the base unit 3 by a steam conduit 7, for example a flexible steam conduit, such that steam produced by the steam generator 5 freely escapes to the smoothing head 6 through the steam conduit 7.

As shown more particularly in fig. 2 and 3, the smoothing head 6 has a rear portion 8 and a front portion 9, the rear portion 8 forming a gripping handle, the front portion 9 comprising a front wall 10 equipped with an inner face 11 and a treatment face 12 intended to be opposite the laundry to be smoothed, the treatment face 12 having at least one steam outlet hole 13. According to the embodiment shown in fig. 1 to 7, the treatment surface 12 is equipped with a plurality of steam outlet holes 13 and is contoured in a substantially triangular shape with curved sides. Advantageously, the treatment surface 12 is flat.

According to the embodiment shown in fig. 1 to 7, the back portion 8 and the front portion 9 of the smoothing head 6 are constituted by a combination of a body 14 made of plastic material and a base plate 15, also made of plastic material, said base plate 15 comprising a front wall 10 and being embedded on said body 14 by screwing or by any other fastening method.

The smoothing head 6 additionally comprises a steam distribution circuit 16 having an inlet pipe 17, the inlet pipe 17 comprising an inlet 18 and an outlet 19 connected to the steam conduit 7. The steam distribution circuit 16 additionally comprises an inner chamber 21, the outlet 19 opening into the inner chamber 21. Advantageously, said outlet 19 opens into the inner chamber 21 tangentially to the front wall 10, and preferably close to the top of the inner chamber 21, so that the steam coming from the steam conduit 7 and exiting the outlet 19 flows along said front wall 10. The inlet pipe 17 advantageously has a constant passage cross-section which is, for example, round at the inlet 18 and, for example, flat at the outlet 19.

According to the embodiment shown in fig. 1 to 7, the inlet pipe 17 has an elbow 22, the elbow 22 being at 90 ° and being located upstream of the outlet 19. The bend 22 may, for example, have an inner radius of curvature of about 4mm and an outer radius of curvature of about 10mm.

As shown in more detail in fig. 3, the inner chamber 21 comprises a first diffusion chamber 23 and a second diffusion chamber 25, the first diffusion chamber 23 being arranged between the inner face 11 of the front wall 10 and a first face 24.1 of an internally extending separation wall 24 of the inner chamber 21, the second diffusion chamber 25 being in communication with the first diffusion chamber 23 and being delimited in part by a second face 24.2 of the separation wall 24 opposite to the first face 24.1 of the separation wall 24. According to the embodiment shown in fig. 1 to 7, the outlet 19 opens into the first diffusion chamber 23, and the passage section of the first diffusion chamber 23 is gradually reduced along the circulation direction of the steam in the first diffusion chamber 23. Advantageously, the main body 14 has a stop surface 26 (visible in fig. 4), the separating wall 24 rests against the stop surface 26, and the separating wall 24 extends substantially parallel to the front wall 10.

According to the embodiment shown in fig. 1 to 7, the internal chamber 21 is delimited by the internal wall of an internal cavity 27 and by the internal face of the front wall 10, the internal cavity 27 being provided in the main body 14. The body 14 optionally comprises an access opening 28, which opens into the internal cavity 27 and is preferably removably closed by the front wall 10.

As shown in fig. 3,5 and 6, the inner chamber 21 comprises a steam outlet pipe 29, which steam outlet pipe 29 extends transversely to the front wall 10 and advantageously perpendicularly thereto and communicates with the steam outlet opening 13, so that the steam present in the inner chamber 21 passes through the steam outlet pipe 29 and escapes in the direction of the steam outlet opening 13. Advantageously, said first diffusion chamber 23 is crossed by a steam discharge pipe 29, and said steam discharge pipe 29 protrudes from the inner face of said front wall 10 and opens into said second diffusion chamber 25. Advantageously, the steam outlet pipe 29 has an accumulated passage section, which substantially corresponds to the passage section of the inlet pipe 17.

According to the embodiment shown in fig. 1 to 7, each steam outlet pipe 29 coincides with a respective steam outlet hole 13, and the soleplate 15 comprises a steam outlet pipe 29 and a separating wall 24.

Preferably, the passage section of each steam discharge pipe 29 is elliptical and has a decreasing width in the opposite direction of the outlet 19, more particularly towards the bottom. These arrangements facilitate the small amount of water droplets that may condense on the inner wall of each steam discharge pipe 29 to be redirected toward the lower portion thereof.

According to the embodiment shown in fig. 1 to 7, each steam outlet pipe 29 has a blocking rib 31, said blocking rib 31 projecting inside the respective steam outlet pipe 29 while advantageously being inclined towards the inside of said inner chamber 21, and said blocking rib 31 forming a counter-block to the flow of water droplets along the corresponding steam outlet pipe 29 in the direction of the steam outlet holes 13, and more particularly in the direction of the corresponding steam outlet holes 13.

As shown in fig. 6, each steam outlet pipe 29 has a lower opening 32, said lower opening 32 being open to said inner chamber 21 and, preferably, to said first diffusion chamber 23. In addition, as shown in fig. 5, the outer surface of each steam discharge pipe 29 is advantageously ribbed, preferably longitudinally ribbed, so as to increase the heat exchange surface area between the steam circulating inside said first diffusion chamber 23 and said steam discharge pipe 29. The outer surface of each steam discharge pipe 29 may be, for example, serrated.

As illustrated more particularly in fig. 3, the internal chamber 21 also has a condensate drain 33 communicating with a condensate return circuit 34. Advantageously, said inner chamber 21 comprises a lower wall 35, for example a curved lower wall 35, said condensate drain 33 being arranged in said lower wall 35.

The condensate return circuit 34 advantageously has a condensate storage chamber 36, the condensate storage chamber 36 being arranged in the smoothing head 6 and, for example, in the main body 14. More specifically, the condensate storage chamber 36 is arranged below the curved lower wall 35 of the inner chamber 21, and the condensate discharge opening 33 opens into the condensate storage chamber 36. Advantageously, the smoothing head 6 has a cleaning opening 37 (visible in fig. 4), the cleaning opening 37 opening into the condensate storage chamber 36, and the front wall 10 closing and sealing the cleaning opening 37 in a removable manner.

According to the embodiment shown in fig. 1 to 7, the condensate return circuit 34 additionally has a return pipe 38, the return pipe 38 comprising a first end portion 38.1 and a second end portion 38.2, the first end portion 38.1 leading to the condensate storage chamber 36, and the second end portion 38.2 being opposite the first end portion 38.1 and leading to the inlet pipe 17, for example in the vicinity of the inlet 18 of the inlet pipe 17. The second end section 38.2 of the return pipe 38 can, for example, be chamfered and protrude a few millimeters into the inlet pipe 17. However, according to a variant of the invention, not shown in the figures, the second end portion 38.2 may open into the steam duct 7.

As more particularly shown in fig. 3, the return pipe 38 is configured to be inclined with respect to the horizontal when the front wall 10 extends substantially vertically. The return pipe 38 may advantageously have a substantially constant passage section.

The operation of the flattening apparatus 2 thus realized will now be described.

When the user wants to smooth the laundry, he fills the liquid reservoir 4 of the base unit 3 with, for example, water and then presses a button to activate the smoothing device 2. The steam generator 5 is then powered in order to generate steam, which escapes from the steam generator 5 towards the inlet 18 of the inlet tube 17. The steam from the steam generator 5 thus flows along the inlet pipe 17, enters the inner chamber 21 through the outlet 19 and is distributed over the majority of the width of the inner face of the front wall 10 due to the inlet pipe 17 having a flat passage section at the outlet 19. The steam that has entered the inner chamber 21 then flows towards the base of said inner chamber 21 and around said steam discharge pipe 29, so as to heat said steam discharge pipe 29 before being redirected by the lower wall 35 of said inner chamber 21 towards said second diffusion chamber 25. Finally, the steam flows through the steam outlet pipe 29 and spreads out of the smoothing head 6 through the steam outlet opening 13.

The presence of the bend 22 upstream of the outlet 19 causes an acceleration of the steam flow flowing in the inlet pipe 17 and thus facilitates the separation of the steam-driven water droplets from said steam flow, whereas the configuration of said outlet 19 ensures that the separated water droplets are blown by said steam flow along the front wall 10 and towards the condensate discharge opening 33, where they are discharged into said condensate storage chamber 36.

In addition, the shape of the vapour discharge pipe 29 and the fact that the vapour discharge pipe 29 has a lower opening 32 allows the condensate that may form in the vapour discharge pipe 29 (this formation being limited by the preheating of the vapour discharge pipe 29 by the vapour flowing in the first diffusion chamber 23) to fall by gravity into said inner chamber 21 and to be discharged outside this inner chamber 21 through the condensate discharge opening 33.

The condensate contained in the condensate storage chamber 36 is then redirected by a return pipe 38 towards the steam conduit 7, so that it slides by gravity along the steam conduit 7 and falls again into the steam generator 5 of the base unit 3, where it is then evaporated again.

Fig. 8 shows a smoothing head 6 according to a second embodiment of the invention, wherein the condensate return circuit 34 has a joint 39, which joint 39 is designed on the smoothing head 6 and is connected to the condensate storage chamber 36, which joint 39 is intended to be fitted to a return conduit connected to the base unit 3 (for example to the steam generator 5), and wherein the inlet pipe 17 has at least one guide rib 41, which guide rib 41 extends along the inlet pipe 17 and is configured to guide the flow of steam in the inlet pipe 17. Advantageously, the inlet duct 17 has a plurality of guide ribs 41, the plurality of guide ribs 41 extending along the inlet duct 17.

Fig. 9 shows a smoothing device 2 according to a third embodiment of the invention, in which the condensate return circuit 34 leads to a reservoir carried by the base unit 3, for example an additional reservoir 42 placed below the liquid reservoir 4. The condensate return circuit 34 may, for example, additionally comprise a trap 43 and a return conduit 44 (e.g. a flexible return conduit), the trap 43 being connected to the additional reservoir 42, the return conduit 44 being connected on the one hand to the condensate storage chamber 36 and on the other hand to the trap 43. Such a trap 43 allows to avoid air, steam or water contained in the additional reservoir 42 from filling the return conduit 44 and preventing the condensate from descending further along the return conduit 44.

The invention is of course in no way restricted to the embodiments shown and described by way of example. Modifications are possible, in particular from the point of view of the composition of the various elements or by substitution of technical equivalents, without going beyond the scope of protection of the invention.

Claims

1. A smoothing head (6) comprising a front wall (10) equipped with a treatment face (12) and a steam distribution circuit (16), the treatment face (12) being intended to be opposite a garment to be smoothed, the treatment face (12) comprising at least one steam outlet hole (13), the steam distribution circuit (16) comprising an inlet duct (17), the inlet duct (17) comprising an inlet (18) intended to be connected with a steam duct (7), the inlet duct (17) comprising an outlet (19) opening into an inner chamber (21), the inner chamber (21) comprising a steam outlet duct (29), the steam outlet duct (29) extending transversely to the front wall (10) and communicating with the at least one steam outlet hole (13) so that steam present in the inner chamber (21) escapes through the steam outlet duct (29) and towards the at least one steam outlet hole (13), characterized in that the outlet opens into the inner chamber (21) tangentially to the front wall (10) so that steam exiting the outlet (19) flows along the front wall (10).

2. The smoothing head (6) according to claim 1, wherein the inlet duct (17) has a constant passage cross-section.

3. The smoothing head (6) according to claim 1, wherein the inlet tube (17) has a round channel cross-section at the inlet (18) and a flat channel cross-section at the outlet (19).

4. The smoothing head (6) according to claim 2, wherein the inlet tube (17) has a round channel cross-section at the inlet (18) and a flat channel cross-section at the outlet (19).

5. The smoothing head (6) according to any one of claims 1 to 4, wherein the inlet pipe (17) has a 90 ° bend (22) upstream of the outlet (19).

6. The smoothing head (6) according to claim 5, wherein the bend (22) has an inner radius of curvature between 3.5 and 4.5mm and an outer radius of curvature between 9 and 11 mm.

7. The smoothing head (6) according to any one of claims 1 to 4, wherein the outlet (19) opens into an upper portion of the inner chamber (21).

8. The smoothing head (6) according to any one of claims 1 to 4, wherein the inner chamber (21) has a first diffusion chamber (23) and a second diffusion chamber (25), the first diffusion chamber (23) being arranged between the inner face (11) of the front wall (10) and a first face (24.1) of an internally extending separating wall (24) of the inner chamber (21), the second diffusion chamber (25) being partially delimited by a second face (24.2) of the separating wall (24) opposite to the first face (24.1) of the separating wall (24), the second diffusion chamber (25) and the first diffusion chamber (23) communicating.

9. The smoothing head (6) according to claim 8, wherein the passage section of the first diffusion chamber (23) is gradually reduced along the circulation direction of the steam in the diffusion chamber (23).

10. The smoothing head (6) according to claim 8, wherein the first diffusion chamber (23) is crossed by the steam discharge pipe (29), the steam discharge pipe (29) protruding from the inner face of the front wall (10) and opening into the second diffusion chamber (25).

11. The smoothing head (6) according to claim 9, wherein the first diffusion chamber (23) is crossed by the steam discharge pipe (29), the steam discharge pipe (29) protruding from the inner face of the front wall (10) and opening into the second diffusion chamber (25).

12. The smoothing head (6) according to any one of claims 1 to 4, wherein the treatment face (12) comprises a plurality of steam outlet holes (13) and each steam outlet duct (29) coincides with a corresponding steam outlet hole (13).

13. The smoothing head (6) according to any one of claims 1 to 4, wherein the steam outlet pipe (29) has an accumulated passage cross section which substantially corresponds to the passage cross section of the inlet pipe (17).

14. The smoothing head (6) according to any one of claims 1 to 4, wherein the passage cross section of each steam outlet pipe (29) is elliptical and has a decreasing width in the opposite direction of the outlet (19).

15. The smoothing head (6) according to one of claims 1 to 4, wherein each steam outlet pipe (29) has a blocking rib (31), which blocking rib (31) protrudes inside the steam outlet pipe (29) and forms a counter-block to the flow of water droplets along the steam outlet pipe (29) in the direction of the at least one steam outlet opening (13).

16. The smoothing head (6) according to any one of claims 1 to 4, wherein the inner chamber (21) comprises a condensate drain (33), the condensate drain (33) communicating with a condensate return circuit (34).

17. The smoothing head (6) according to claim 16, wherein the inner chamber (21) comprises a lower wall (35), the lower wall (35) comprising the condensate drain (33).

18. The smoothing head (6) according to claim 17, wherein the lower wall (35) is curved.

19. The smoothing head (6) according to claim 16, wherein the condensate return circuit (34) comprises a condensate storage chamber (36) arranged in the smoothing head (6).

20. The smoothing head (6) according to claim 16, wherein the condensate return circuit (34) opens into the steam duct (7) or into the inlet pipe (17).

21. A smoothing head (6) according to any one of claims 1 to 4, the smoothing head (6) comprising a main body (14) and a floor plate (15), the main body (14) at least partially delimiting the internal chamber (21), the floor plate (15) being rabbeted to the main body (14) and comprising the front wall (10) and the steam discharge duct (29).

22. A smoothing device (2) comprising a base unit (3) and a smoothing head (6) according to any one of the preceding claims, the base unit (3) having a steam generator (5).