Smoothing device

Abstract

A smoothing device comprising a handle and a smoothing head connected to the handle, the device further comprising a steam circuit having a steam generator and an air intake circuit having a fan designed to rotate by a motor, the smoothing head being designed to be arranged facing a fabric product to be smoothed and comprising a treatment surface and a back surface on the opposite side of the treatment surface, the smoothing head extending in the longitudinal direction between the treatment surface and the back surface, the treatment surface comprising at least one steam vent connected to the steam circuit and at least one intake port connected to the air intake circuit, the treatment surface being non-planar and orthogonal to the longitudinal direction, and an outer plane passing through the outermost point of the treatment surface being spaced apart from an inner plane parallel to the outer plane passing through at least one intake port of the treatment surface by at least 1 mm.

Description

Technical Field

[0001] The present invention relates to the field of small household appliances, and more specifically, to a smoothing device.

Background Art

[0002] Conventionally, an iron has been used to iron clothes. Since there are restrictions on the use of an iron (for example, an ironing board is required), portable smoothing devices that do not require an ironing board and can be used quickly and easily have been developed. These devices are generally called "steamers". A smoothing device removes wrinkles by applying a hot smoothing surface to the clothes while the clothes are hanging on a hanger and releasing steam. A smoothing device can be used to remove wrinkles from clothes when used correctly.

[0003] In practice, it has been observed that the effect of the device is limited because the user does not sufficiently stretch the clothes and does not firmly press the smoothing surface against the clothes. This means that even when ironing goes well if the device is used correctly, it may not. As a result, smoothing devices that suck, heat, and release steam have been provided. However, suction can sometimes cause wrinkles, which is particularly undesirable. Furthermore, during use, despite suction, the clothes are not completely pressed against the processing surface, and optimal smoothing cannot be performed.

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide a portable smoothing device incorporating a suction technique combined with steam release in order to ensure optimal smoothing.

Means for Solving the Problems

[0005] According to the first embodiment, a smoothing device is provided that includes a handle and a smoothing head connected to the handle. The device includes a steam circuit with a steam generator, and an air intake circuit with a fan designed to rotate by a motor. The device further includes The smoothing head is designed to be arranged facing the fabric product to be smoothed, and includes a treatment surface arranged facing the fabric product to be smoothed and a back surface on the opposite side of the treatment surface. The smoothing head extends in the longitudinal direction between the treatment surface and the back surface. The treatment surface includes at least one steam vent connected to the steam circuit and at least one intake port connected to the air intake circuit. The treatment surface is non-planar, orthogonal to the longitudinal direction, and the outer plane passing through the outermost point of the treatment surface is at least 1 mm away from the inner plane passing through at least one intake port of the treatment surface and parallel to the outer plane.

[0006] According to advantageous and non-limiting features, the following features may be mentioned, alone or in any combination.

[0007] The handle can be held with only one hand and has a shape that allows the device to be moved facing the fabric product to be smoothed. Advantageously, the handle has an elongated shape and a circumference of less than 20 cm.

[0008] The weight of the smoothing device is less than 2 kg, preferably less than 1.5 kg.

[0009] The outer plane is at least 2 mm away from the inner plane.

[0010] The outer plane is at least 4 mm away from the inner plane.

[0011] At least one intake port is arranged at a peripheral point of the treatment surface.

[0012] The device includes at least two intake ports arranged at two peripheral points of the opposing treatment surfaces.

[0013] The suction ports on the processing surface are arranged only around the edge of the processing surface.

[0014] The device includes a plurality of suction ports arranged around the edge of the processing surface. The suction ports are concentrated in two peripheral regions of the opposing processing surface.

[0015] At least one suction port can be in the shape of a slit or a hole.

[0016] The suction ports extend along at least one straight or curved suction line.

[0017] The processing surface has a curved profile.

[0018] At least one suction port is separated from at least one vapor vent by a distance of at least 15 mm in a plane orthogonal to the longitudinal direction.

[0019] At least one vapor vent is arranged in an outer plane orthogonal to the longitudinal direction.

[0020] The air intake circuit is configured to allow an air intake flow rate greater than 10 m 3 / h and less than 60 m 3 / h.

[0021] The air intake circuit is configured to allow an air intake flow rate greater than 20 m 3 / h and less than 50 m 3 / h.

[0022] The processing surface includes a sole plate on which at least one vapor vent is arranged, and at least one suction port is arranged around the sole plate.

[0023] The processing surface has a substantially rectangular shape and includes a plurality of suction ports arranged along two long sides of the rectangular shape.

[0024] The processing surface has a substantially triangular shape and is provided with a plurality of suction ports arranged along one side of the triangular shape.

[0025] The device further comprises at least one suction port arranged at an angle opposite to one side of the triangular shape.

Brief Description of the Drawings

[0026] Other features and advantages of the present invention will become apparent from the following description of the preferred embodiments. This description is made with reference to the accompanying drawings.

[0027]

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0028] Note that in this document, the terms "vertical", "down", "up", "front", and "rear" used to describe the smoothing device refer to the state when the device is placed flat on the base plate.

[0029] Figure 1 shows a smoothing device 1 comprising a portable housing 10 with a handle 4 on top and a smoothing head 2 provided with a processing surface 20 designed to move facing a fabric product to be smoothed. The side surface of the portable housing 10 where the processing surface 20 is arranged corresponds to the front part of the portable housing 10.

[0030] Also, the smoothing device is characterized in that it further comprises a base plate 6 extending from the handle 4 on the opposite side of the smoothing head 2.

[0031] Referring to FIG. 2, the portable housing 10 further comprises an air intake circuit including a fan 21 designed to be rotated by a motor 23. The fan 21 and the motor 23 are preferably arranged on the smoothing head 2.

[0032] The portable housing 10 also comprises a steam circuit including a steam generator 61. Such a steam generator 61 is preferably arranged on the base plate 6.

[0033] The steam circuit is designed to discharge steam at the treatment surface 20, and the air intake circuit is designed to intake air at the treatment surface 20.

[0034] Preferably, the portable housing is made of plastic. For example, the portable housing can be made of polypropylene or polycarbonate.

[0035] As the name implies, the housing is portable. Thus, it is designed to be held by an individual, and the appliance is in particular designed to be operated with one hand while holding the handle 4.

[0036] The portable housing 10 preferably comprises control means 8 (such as buttons) for controlling the release of steam and the intake of air. The control means 8 are preferably arranged on the handle 4. These control means 8 are preferably designed to be operable by the hand used to hold the portable housing of the smoothing device.

[0037] Furthermore, the handle 4 is designed to include, for example, electrical wiring for supplying power to the motor 23.

[0038] Preferably, the weight of the handle 4 is about 50 grams.

[0039] As shown in FIG. 3, the base plate 6 is designed with a flat outer surface 60 so that the device can be placed on a substantially flat surface S in the "rest" position. This surface 60 is preferably on the distal side of the base plate 6.

[0040] When the device 1 is in the rest position, the longitudinal axis P of the handle 4 (see FIG. 3) is preferably slightly inclined forward. Specifically, the portable housing 10 is configured such that the longitudinal axis P forms a non-zero angle, for example, an angle of about 15°, with the axis perpendicular to the outer surface 60 (corresponding to the surface S of the device).

[0041] According to another embodiment, the longitudinal axis P of the handle 4 is perpendicular to the outer surface 60.

[0042] Preferably, the base plate 6 has a button on the back for turning on the device.

[0043] Preferably, further, the base plate 6 also includes a power cord for connecting to a household power network. The cord is removable.

[0044] The length of the cord is preferably 200 cm or more. Preferably, when the user holds the device 1 at a height of about 1.5 meters from the floor, the weight of the cord is about 150 grams.

[0045] As described above, the base plate 6 preferably includes a steam generator 61 that is part of the steam circuit. The steam generator 61 is suitable for converting liquid from the liquid tank 62 into steam. The steam generator 61 defines an enclosure designed to hold the liquid, and the steam generator 61 preferably includes at least one shielded heating element 65 for heating the liquid from the tank 62 within the enclosure. Preferably, the steam generator 61 is connected to a pipe 41 in the steam circuit arranged such that steam flows from the steam generator 61 to the smoothing head 2.

[0046] The steam generator 61 is typically manufactured from a metal body, such as aluminum, for example, and preferably has a weight of approximately 250 grams. This weight includes the weight of the aluminum structure, the shielded heating element 65, the electrical safety and temperature control elements, which are preferably provided in the steam generator 61.

[0047] The liquid tank 62 is preferably part of the steam circuit and is provided in the portable housing 10 and is arranged on the base plate 6. According to an embodiment not shown, the tank 62 is removable.

[0048] According to the embodiment shown in FIG. 2, the tank 62 is arranged at the front of the portable housing 10, or more specifically, at the front of the base plate 6.

[0049] The tank 62 preferably comprises a transparent container defining the outer wall of the tank 62, and a removable cap 620 is attached so that the tank 62 can be filled. The tank 62 is suitable for holding a liquid, usually water or a liquid solution diluted in water.

[0050] The capacity of the tank 62 is preferably about 100 mL. In the empty state, the tank preferably has a weight of about 50 grams. For example, if the tank 62 contains about 100 grams of water and is 100% filled, it has a weight of about 150 grams.

[0051] Also, preferably, the steam circuit comprises a pump 63 designed to circulate the liquid from the tank 62 to the steam generator 61, and this pump 63 is preferably arranged on the base plate 6.

[0052] The weight of the pump 63 is preferably about 50 grams.

[0053] The smoothing head 2 is connected to the upper end of the handle 4, and the base plate 6 is connected to the lower end on the side opposite to the upper end of the handle 4. According to the embodiment shown in FIG. 1, the lower part of the handle 4 has a flare shape with a gradually increasing cross-section as it approaches the base plate 6.

[0054] The smoothing head 2 includes a front processing surface 20 designed to move facing the fabric product to be smoothed. The smoothing head 2 also has a rear end with a back surface on the side opposite to the processing surface 20. Thus, as shown in FIG. 3, the smoothing head 2 extends along the longitudinal direction T between the processing surface 20 and the back surface.

[0055] The processing surface 20 preferably comprises a processing plate 200, and preferably a metal one such as a processing plate 200 made of aluminum, for example.

[0056] This processing plate 200 can be, for example, a sole plate 200 for improving smoothing as described below. Such a sole plate 200 can be heated by one or more heating elements 26 arranged within the smoothing head near the processing surface 20.

[0057] The processing surface 20 comprises at least one steam vent 24 connected to a steam circuit and at least one suction port 22 connected to an air intake circuit. Preferably, it comprises a plurality of steam vents 24 and a plurality of suction ports 22.

[0058] The various steam vents 24 and suction ports 22 can be in the shape of holes or slits. In the example shown in FIG. 1, the steam vent 24 is in the shape of a hole and the suction port 22 is in the shape of a slit.

[0059] Preferably, the various vapor vents 24 and inhalation ports 22 extend along at least one straight line or curve. Thus, if the vent or port is in the shape of a slit, the slit can extend along a straight line or curve. In another possible case, the vents or ports in the set are each in the shape of a hole and can be arranged to extend along a straight line or curve. The vents and ports in this set of vents and ports are arranged close to each other. That is, each vent and port is preferably arranged at a distance of less than 5 mm from an adjacent vent or port on the line. Advantageously, the aforementioned set of vents and ports comprises only vents and ports of the same type, for example, inhalation ports 22, and they are said to extend along an inhalation line.

[0060] The entire processing surface 20 is preferably non-planar. For example, the processing surface 20 can have a curved profile. Preferably, the processing surface 20 has a concave profile. According to an embodiment, the processing surface 20 is designed with a plurality of planes, its profile is non-linear, has different continuous segments, and each segment can form an angle different from 0° and 180° with an adjacent segment. As another example, the processing surface 20 can have a partially curved profile comprising one or more curved segments and one or more straight segments.

[0061] The processing plate 200 can be planar as shown in the figure or non-planar (e.g., concave).

[0062] Referring to FIG. 4, the distance between the outer plane P1, which is orthogonal to the longitudinal direction T and passes through the outermost point of the processing surface 20 with respect to the longitudinal direction T, and the inner plane P2 (parallel to the outer plane P1) passing through at least one suction port 22 of the processing surface 20 is non-zero, preferably at least 1 mm. Preferably, the outer plane P1 is at least 2 mm away from the inner plane P2, and more preferably at least 4 mm away. The distance between the outer plane P1 and the inner plane P2 is preferably 10 mm or less, and more preferably 6 mm or less. In other words, at least one suction port 22 is arranged at a position recessed from the plane P1. Therefore, when the processing surface 20 approaches and faces the fabric product, at least one recessed suction port 22 will not be the first contact point between the processing surface 20 and the fabric product. The fact that at least one suction port 22 is recessed means that the processing surface 20 is generally non-planar.

[0063] Advantageously, at least one vapor vent 24 is arranged in the outer plane P1 orthogonal to the longitudinal direction T. In other words, the vapor vent 24 is separated from the suction port 22 by a non-zero distance in the longitudinal direction T. Preferably, the vapor vent 24 is separated from the suction port 22 by a distance of 1 mm or more, and more preferably 2 mm or more, and even more preferably 4 mm or more. Preferably, the vapor vent 24 is separated from the suction port 22 by a distance of 10 mm or less, and more preferably 6 mm or less.

[0064] Preferably, at least one vapor vent 24 is arranged on the processing plate 200.

[0065] Preferably, the suction port 22 is separated from the vapor vent 24 by a distance of at least 10 mm in a plane orthogonal to the longitudinal direction T. Preferably, the suction port 22 is separated from the vapor vent 24 by a distance of 50 mm or less in a plane orthogonal to the longitudinal direction T. More preferably, the suction port 22 is separated from the vapor vent 24 by a distance of 15 mm to 35 mm in a plane orthogonal to the longitudinal direction T.

[0066] When referring to the distance between vents or ports, or the distance to a vent or port, it should be noted that these are understood to be the distance between the centers of the vents or ports, or the distance to the center of the vent or port.

[0067] Advantageously, at least one suction port 22 is located at a peripheral point of the treatment surface 20. "Peripheral" means a point close to one end of the treatment surface 20. Preferably, the peripheral point is separated by a distance of 10 mm or less, more preferably 7 mm or less, and even more preferably 5 mm or less from one end of the treatment surface 20 in a plane perpendicular to the longitudinal direction T. Preferably, the peripheral point is separated by a distance of 1 mm or more, more preferably 3 mm or more, and even more preferably 5 mm or more from one end of the treatment surface 20 in a plane perpendicular to the longitudinal direction T.

[0068] Preferably, the suction port 22 is arranged at the upper or lower part of the treatment surface 20. The lower part of the treatment surface 20 is the end of the treatment surface 20 located on the handle 4 side. The upper part of the treatment surface 20 is the end of the treatment surface 20 located on the opposite side of the lower part. In other words, when the device 1 is in the rest position, the upper part of the treatment surface 20 is at a higher (farther from the floor) position than the lower part.

[0069] In fact, it is preferable that the suction port 22 is not arranged at the side part of the treatment surface. Therefore, it is preferable that the suction port 22 is arranged at the upper and / or lower part of the treatment surface 20. In other words, there is no side suction port on the treatment surface 20, that is, there is no suction port arranged on the side surface.

[0070] Preferably, the processing surface 20 comprises at least two suction ports 22 located at two peripheral points of the processing surface 20. These suction ports face each other. Advantageously, the first suction port 22 is arranged at the upper part of the processing surface 20, and the second suction port 22 is arranged at the lower part of the processing surface 20. According to the embodiment shown in FIG. 1, the processing surface 20 includes a first slit-shaped suction port 22A arranged at the upper part and a second slit-shaped suction port 22B arranged at the lower part.

[0071] Preferably, the processing surface 20 comprises a plurality of suction ports 22 located around the edge of the processing surface 20, and these suction ports 22 are concentrated in two opposite peripheral regions of the processing surface 20, usually at the upper and lower parts of the processing surface 20.

[0072] According to the embodiment shown in FIG. 1, the suction ports 22A, 22B are arranged around the processing plate 200. In other words, the suction ports 22 are not arranged on the processing plate 200.

[0073] The processing surface 20 can have various shapes, for example, rectangular or triangular. According to an embodiment, the processing surface 20 is substantially rectangular and comprises a plurality of suction ports 22 arranged along the long side of the rectangle. The "long side" refers to the two longest sides among all the sides of the rectangle.

[0074] According to another embodiment, the processing surface 20 is substantially triangular and comprises a plurality of suction ports 22 arranged along one side of the triangle. Further, at least one suction port 22 is preferably arranged at the corner opposite to this side of the triangle.

[0075] According to this embodiment, advantageously, when the device 1 is in the rest position, the processing surface 20 is arranged such that one side of the triangle (referred to as the main side) is parallel to the floor. Preferably, the triangle is an isosceles triangle, and the base of this isosceles triangle (the side with a length different from the two equal sides) is the main side. Also, advantageously, some of the suction ports 22 are arranged along the main side. Further, at least one suction port 22 is preferably arranged at the corner opposite to the main side.

[0076] The structure of the processing surface 20 shown facilitates pressing the fabric product against the processing surface 20 during smoothing. In fact, the fabric product is drawn towards the suction ports 22, and since these ports are "recessed" as described above, the fabric product adheres more closely to the processing surface 20 than in the case of an embodiment where the processing surface 20 is flat.

[0077] Advantageously, the suction port 22 includes a filter.

[0078] Advantageously, the secondary steam generator 25 is arranged in the smoothing head 2. The secondary steam generator 25 is part of the steam circuit. The secondary steam generator 25 is preferably connected to the pipe 41. In fact, the secondary steam generator 25 is used to re-evaporate the liquid from the steam generator 61 (referred to as the "primary steam generator") that has flowed through the pipe 41. Certainly, when flowing through the pipe 41, the steam can be cooled to the point where a part of it condenses. Thus, the steam condensate flows to the secondary steam generator 25. The secondary steam generator 25 preferably evaporates this condensate and prevents the liquid from being released through the steam vent 24. Preventing the release of the liquid is particularly advantageous because if the liquid is released through the steam vent 24, the fabric product to be processed will get wet and will not be properly smoothed. To evaporate the condensate, the secondary steam generator 25 preferably includes at least one PTC thermistor or a shielded heating element 26. The secondary steam generator 25 may sometimes also be referred to as an "evaporator" because it reheats the steam generated by the steam generator 61.

[0079] Preferably, the shielded heating element 26 of the secondary steam generator 25 is in thermal contact with the treatment surface 20. Thus, the treatment surface 20, and more specifically, the sole plate 200, can be heated by the heating element 26 of the secondary steam generator 25, enabling more effective smoothing when the treatment surface 20 is disposed facing the fabric product.

[0080] According to an embodiment not shown, silicon components are disposed between the heating element 26 of the secondary steam generator 25 and the treatment surface 20 so that the temperature of the treatment surface 20 does not exceed a specific temperature threshold, usually 150°C.

[0081] The secondary steam generator 25 is typically manufactured with a metal body, for example, made of aluminum.

[0082] The secondary steam generator 25 preferably also includes electrical safety and temperature control elements.

[0083] Thus, the assembly comprising the treatment surface 20 and the secondary steam generator 25 preferably has a weight of approximately 100 grams.

[0084] The smoothing head 2 includes a motor 23 that is part of the air intake circuit. Preferably, the motor 23 is disposed within the smoothing head 2 along the axial extension of the treatment surface 20. The motor 23 extends along the longitudinal axis M shown in FIG. 3.

[0085] According to FIG. 3, the smoothing head 2 has an elongated shape extending laterally with respect to the handle 4 and preferably has an angle α of approximately 65° with respect to the longitudinal axis P of the handle. Preferably, the handle 4 extends along an axis passing through at least a part of the motor 23. The P-axis and the M-axis advantageously intersect.

[0086] The motor 23 is suitable for rotating the fan 21. The fan 21 is part of the air intake circuit and takes in air from the intake port 22.

[0087] The assembly comprising the motor 23 and the fan 21 preferably has a weight of about 300 grams.

[0088] Preferably, the air intake circuit is 10 m 3 / hour or more and less than 60 m 3 / hour, and further preferably 20 m 3 / hour or more and less than 50 m 3 / hour of air intake flow rate.

[0089] The operation of the device is described as follows.

[0090] When the user wants to use the device, the tank 62 is filled with a liquid (preferably water), and then the power button is pressed to turn on the device 1. Assume that the device is connected to the household power network via a power cord. Further, the heating elements of the primary steam generator 61 and the secondary steam generator 25 are heated to the operating temperature, which is advantageously controlled by a thermostat.

[0091] When the user wants to use the device in the vertical smoothing position, the processing surface 20 is moved vertically with respect to the fabric product to be smoothed, and then the control means 8 (in this case, preferably a button) that operates the pump 63 to allow the liquid to flow from the tank 62 to the primary steam generator 61 is pressed.

[0092] The steam generated in the primary steam generator 61 then flows through the pipe 4 to the secondary steam generator 25 (if present), and further escapes through the steam vent 24. Then, the steam is diffused onto the fabric product and combined with the heating and drying action of the processing plate 200 to be smoothed.

[0093] At the same time, it is possible to set the control means 8 to activate air inhalation in combination with steam release. For example, by pressing the control means 8, the motor 23 starts to operate. As a result, the fan 21 rotates and air is drawn in from the suction port 22. In particular, air inhalation helps to press the fabric product against the treatment surface 20. Pressing the fabric product against the treatment surface 20 is also possible depending on the structure of the treatment surface 20. Thus, the combination of steam release and air inhalation optimizes smoothing. Furthermore, air inhalation also helps to dry the part of the fabric product to which steam has been applied. It has been found that the smoothing effect lasts longer after the fabric product has been processed by this specific process.

[0094] According to another embodiment, the control means 8 can be instructed to the user to control inhalation independently of the control of steam release. Thus, the user can control steam release alone or in combination with air inhalation.

[0095] During processing, the user can move the device 1 in the vertical direction, for example, up and down, to process the whole or part of the fabric product.

[0096] The device 1 can also be used occasionally in the horizontal smoothing position by moving the treatment surface 20 horizontally over the fabric product, for example, to smooth a fabric product placed horizontally on a table.

[0097] The present invention is not limited to the embodiments shown and described in the accompanying drawings. Changes can be made without departing from the overall teachings, particularly with respect to the configuration of various technical elements or by substituting technical equivalents.

Claims

1. A smoothing device (1) comprising a portable housing (10) including a base plate (6), a handle (4), and a smoothing head (2) connected to the handle (4), wherein the smoothing head (2) is above the handle (4), the base plate (6) is on the extension of the handle (4) on the opposite side of the smoothing head (2), and the device further comprises: A steam circuit comprising a steam generator (61); An air intake circuit comprising a fan (21) designed to rotate by a motor (23), wherein the fan (21) and the motor (23) are arranged in the air intake circuit within the smoothing head (2); And further comprises: The smoothing head (2) comprises a treatment surface (20) designed to move facing a fabric product to be smoothed and a back surface on the opposite side of the treatment surface (20). The smoothing head (2) extends in the longitudinal direction between the treatment surface (20) and the back surface. The treatment surface (20) comprises at least one steam vent (24) connected to the steam circuit and at least one intake port (22) connected to the air intake circuit. A smoothing device (1), wherein an outer plane (P1) orthogonal to the longitudinal direction and passing through the outermost point of the treatment surface (20) is at least 1 mm away from an inner plane (P2) passing through the at least one intake port (22) of the treatment surface (20).

2. The device according to claim 1, wherein the outer plane (P1) is at least 2 mm away from the inner plane (P2).

3. The device according to claim 2, wherein the outer plane (P1) is at least 4 mm away from the inner plane (P2).

4. The device according to any one of claims 1 to 3, wherein the at least one intake port (22) is located at a point around the edge of the treatment surface (20).

5. The device according to any one of claims 1 to 4, comprising at least two intake ports located at two peripheral points of the treatment surface (20) facing each other.

6. The device according to any one of claims 1 to 5, comprising a plurality of intake ports located around the edge of the treatment surface (20), and the intake ports are concentrated around two peripheral regions of the treatment surface (20) facing each other.

7. The device according to any one of claims 1 to 6, wherein the at least one suction port (22) is in a slit shape or a hole shape.

8. The device according to any one of claims 1 to 7, wherein the suction port (22) extends along at least one straight or curved suction line.

9. The device according to any one of claims 1 to 8, wherein the processing surface (20) has a curved profile.

10. The device according to any one of claims 1 to 9, wherein the at least one suction port (22) is separated from the at least one vapor vent (24) by a distance in a plane orthogonal to the longitudinal direction of at least 10 mm, preferably at least 15 mm.

11. The device according to any one of claims 1 to 10, wherein the at least one vapor vent (24) is located in the outer plane orthogonal to the longitudinal direction.

12. The air intake circuit allows an air intake flow rate of 10 m ３ / hour or more and less than 60 m ３ / hour. The apparatus according to any one of claims 1 to 11.

13. The air intake circuit allows an air intake flow rate of 20 m ３ / h or more and less than 50 m ３ / h. The apparatus according to claim 12, which is configured as such.

14. The device according to any one of claims 1 to 13, wherein the processing surface (20) comprises a sole plate (200) on which the at least one vapor vent (24) is arranged, and the at least one suction port (22) is arranged around the sole plate (200).

15. The device according to any one of claims 1 to 14, wherein the processing surface (20) has a substantially rectangular shape and comprises a plurality of suction ports arranged along two long sides of the rectangular shape.

16. The device according to any one of claims 1 to 14, wherein the processing surface (20) has a substantially triangular shape and comprises a plurality of suction ports (22) arranged along one side of the triangular shape.

17. The device according to claim 16, further comprising at least one suction port (22) arranged at a corner opposite to the one side of the triangular shape.

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