EP3555359B1 - Steam ironing apparatus - Google Patents

Steam ironing apparatus Download PDF

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Publication number
EP3555359B1
EP3555359B1 EP17822376.4A EP17822376A EP3555359B1 EP 3555359 B1 EP3555359 B1 EP 3555359B1 EP 17822376 A EP17822376 A EP 17822376A EP 3555359 B1 EP3555359 B1 EP 3555359B1
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EP
European Patent Office
Prior art keywords
steaming
steam
straightening apparatus
wall
steaming chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17822376.4A
Other languages
German (de)
French (fr)
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EP3555359A1 (en
Inventor
Thomas Cordier
Arnaud Bochard
Jean-Pierre Lavoine
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SEB SA
Original Assignee
SEB SA
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Publication of EP3555359A1 publication Critical patent/EP3555359A1/en
Application granted granted Critical
Publication of EP3555359B1 publication Critical patent/EP3555359B1/en
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00—Hand irons
    • D06F75/30—Hand irons of special external shape or form
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D06F75/14—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water in a reservoir carried by the iron
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F87/00—Apparatus for moistening or otherwise conditioning the article to be ironed or pressed
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D06F75/14—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water in a reservoir carried by the iron
    • D06F75/16—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water in a reservoir carried by the iron the reservoir being heated to produce the steam
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/24—Arrangements of the heating means within the iron; Arrangements for distributing, conducting or storing the heat

Definitions

  • the present invention relates to the field of portable steam ironing devices comprising a handle connected to a steam emitting head comprising a treatment face intended to come vertically opposite a garment to be ironed and comprising at least one steam outlet.
  • the invention relates more particularly to an apparatus in which the steam emission head comprises a heating body comprising a vaporization chamber comprising a bottom wall forming an angle of between 45° and 90° with the treatment face and comprising means for projecting liquid into the vaporization chamber.
  • a steam ironing device comprising a handle surmounted by a steam emitting head comprising a treatment face provided with a steam outlet orifice intended to come vertically opposite a garment to be ironed.
  • the steam emission head comprises a heating body comprising a vaporization chamber comprising a bottom wall forming an angle of the order of 90° with the treatment face and comprises a nozzle, fed by a pump, which Allows you to project water from the reservoir into the vaporization chamber.
  • Such a steaming device is intended to be held in the hand with the handle slightly inclined forwards so that the steam-diffusing treatment face is placed vertically, opposite the garment to be steamed, and that the wall bottom of the vaporization chamber is arranged substantially horizontally.
  • the following invention aims to overcome these drawbacks by proposing in particular a portable steamer that can produce a high steam output and that can be used in any position with a limited risk of water droplets spitting out of the steam outlet.
  • a steam ironing device comprising a handle connected to a steam emitting head comprising a treatment face intended to come vertically opposite a garment to be ironed and comprising at least one steam outlet, the steam emission head comprising a heating body comprising a vaporization chamber comprising a bottom wall forming an angle of between 45° and 90° with the treatment face and comprising means for injecting liquid in the vaporization chamber, characterized in that the means for injecting liquid comprise at least two nozzles injecting liquid into two distinct vaporization zones of the vaporization chamber.
  • Such a characteristic makes it possible to simultaneously inject liquid into two distinct zones of the vaporization chamber, which makes it possible to obtain faster vaporization of the liquid in the vaporization chamber.
  • such a characteristic makes it possible to have a more homogeneous temperature in the vaporization chamber, which promotes the production of steam.
  • the temperature of the heating body is regulated by means of the thermostat, the more homogeneous distribution of the temperature in the vaporization chamber allows a faster reaction of the thermostat, conducive to a better vaporization of the water injected into the vaporization chamber. .
  • the heating body comprises an electrical resistor whose power supply is regulated by means of a thermostat.
  • the bottom wall comprises a front end oriented towards the treatment face and a rear end located opposite, the vaporization zones being surrounded on part of their periphery by a retention wall which forms a cavity in which liquid can be trapped when the bottom wall is tilted vertically backwards or vertically to the side.
  • tilting the bottom wall vertically backwards it is meant that the bottom wall is arranged vertically by pivoting its rear end down.
  • tilting the bottom wall vertically to the side it is meant that the bottom wall is arranged vertically by causing the bottom wall to pivot around a longitudinal axis passing through the front end and the rear end of the heating body.
  • the vaporization chamber is bordered laterally by a peripheral wall and is closed at its upper end by a lid attached to the peripheral wall, the lid comprising the nozzles.
  • the vaporization chamber thus produced has the advantage of being simple and economical to produce.
  • the peripheral wall comprises an opening establishing communication between the interior of the vaporization chamber and a steam distribution circuit in which the steam diffuses as far as the steam outlet orifice. , the opening being provided at a rear end of the vaporization chamber arranged opposite the treatment face.
  • Such a construction makes it possible to prevent any droplets of water stored in the vaporization chamber from flowing through the steam outlet orifice when the bottom wall is tilted forwards.
  • the retention wall extends from the peripheral wall towards the interior of the vaporization chamber passing behind the vaporization zone, then on the side of the vaporization zone and finally at the least partially in front of the vaporization zone without however joining the peripheral wall so that a passage results between a distal end of the retention wall and the peripheral wall.
  • the passages of the vaporization zones communicate with a central channel for the diffusion of the vapor extending longitudinally in the center of the vaporization chamber, the two vaporization zones being arranged symmetrically on either side. else of center channel.
  • Such a construction makes it possible to have a central channel which is not obstructed by the water present in the vaporization chamber when the bottom wall is tilted to the side.
  • the central channel opens opposite a deflecting wall which is arranged opposite the opening, the deflecting wall deflecting the flow of vapor from the central channel in the direction of two side channels of steam outlet which extend along the peripheral wall and emerge on either side of the opening.
  • Such a construction makes it possible to prevent the flow of steam from the central channel from escaping directly through the opening, entraining droplets of water.
  • the vaporization chamber comprises, at the edge of the opening, two end walls which project towards the inside of the vaporization chamber.
  • Such a construction makes it possible to limit the risk of water flowing when the bottom wall is tilted vertically rearward.
  • the vaporization chamber protrudes in the middle of an enclosure of the heating body, the enclosure defining a distribution circuit around the vaporization chamber.
  • the treatment face is carried by an end plate arranged at one longitudinal end of the head, the heating body comprising a front face which comes into contact with the end plate, the front face comprising a slot placing the steam outlet hole of the treatment face in communication with the enclosure of the heating body.
  • Such a characteristic makes it possible to thermally couple the treatment face with the heating body in order to maintain the temperature of the treatment face at a temperature above 100° C. and to prevent the condensation of the vapor thereon.
  • the two nozzles inject liquid onto two distinct vaporization zones of the bottom wall of the vaporization chamber.
  • Such a feature makes it possible to optimize the operation of the vaporization chamber when the steaming head is arranged substantially horizontally with the handle of the device facing downwards.
  • the bottom wall forms an angle with the treatment face of between 75° and 90° and preferably of the order of 90°.
  • Such a characteristic has the advantage of optimizing the distribution of the liquid on the bottom wall of the vaporization chamber in the most common position of use of the device.
  • the two nozzles are arranged symmetrically on either side of a median plane P perpendicular to the front face and to the bottom wall of the vaporization chamber.
  • Such a characteristic makes it possible to obtain equivalent performance of the device when the device is tilted on one or the other of its sides.
  • the whole of the vaporization chamber is symmetrical with respect to the plane P.
  • the device comprises a portable box comprising the head, the handle and a reservoir of liquid, the vaporization chamber being supplied with liquid from the reservoir by means of a pump, advantageously electric, integrated in the box.
  • Such a construction allows the production of a compact device with very good vaporization performance.
  • the pump supplies the vaporization chamber with water coming from the reservoir with a flow rate of between 10 and 35 g/min and preferably of the order of 25 g/min.
  • the figure 1 represents an ironing appliance comprising a portable case made of plastic material comprising a base 1 surmounted by a handle 2 and a head 3 for emitting steam, the base 1 comprising a flat underside provided with feet on which the device can come to rest stably in a substantially vertical position.
  • the base 1 of the appliance comprises an electric power cord 11 enabling it to be connected to a domestic electric network and the head 3 for emitting steam comprises a rear face provided with a button 4, visible on the picture 2 , to turn on the device.
  • the base 1 contains an electric pump 5, illustrated in dotted lines on the figure 1 , the operation of which is controlled by means of a trigger 52 disposed at the top of the handle 2, the trigger 52 actuating, in a manner known per se, a switch connected to an electronic card for controlling the pump 5, not shown in the figures.
  • the pump 5 is supplied with liquid by a reservoir 10 formed partially in the base 1 and in the lower part of the handle 2, this reservoir 10 being advantageously removable from the device to facilitate its filling.
  • the steam emitting head 3 has a slender shape extending transversely to the longitudinal direction of the handle 2 and has a longitudinal end provided with a flat end plate 30 having a treatment face 30A intended to come vertically into next to the garment to be smoothed, this end plate 30 comprising a slot 31 for emitting a stream of steam.
  • the steam emission head 3 encloses a heating body 6 which is closed at its upper end by a cover 7 receiving two nozzles 50 connected by a Y-shaped silicone pipe 51 to the pump 5, the heating body 6 having a generally rectangular parallelepiped shape comprising a front face coming into thermal contact with the end plate 30.
  • the heating body 6 defines an enclosure at the center of which is arranged a vaporization chamber 60, the latter being delimited laterally by a peripheral wall 61 having a semi-circular front end and a straight rear end, the vaporization chamber 60 being closed at its upper end by the cover 7, the latter coming to rest in a sealed manner on the top of the peripheral wall 61.
  • the heating body 6 consists of an aluminum foundry in which is embedded an electrical resistor 62, of the U-shaped shielded resistor type, with a power of the order of 1000W, the supply of the resistor electric 62 being regulated by means of a thermostat around a set temperature, measured at the center of the vaporization chamber 60, between 110°C and 150°C.
  • the heating body 6 can also comprise a fuse circuit breaker which cuts the electrical supply to the electrical resistance 62 in the event of failure of the thermostat, such a circuit breaker being able for example to act when the temperature of the heating body 6 exceeds 250°C.
  • the enclosure of the heating body 6 comprises, outside the peripheral wall 61, a volume which defines a distribution circuit 8, on either side of the vaporization chamber 60, in which the steam can flow. in the direction of a slot 80 provided in the front face of the heating body 6, visible on the figure 4 , this light 80 having a shape corresponding to the shape of the vapor emission slot 31 of the treatment face 30A of the head 3.
  • the vaporization chamber 60 communicates with the steam distribution circuit 8 through an opening 63 provided at a rear end of the vaporization chamber 60, the steam exiting through this opening 63 being able to flow into the steam distribution circuit 8, on either side of the vaporization chamber 60 to then be diffused through the slot 31.
  • the heating body 6 comprises a bottom wall 64, having multiple projecting studs 64A, which constitutes both the bottom wall of the steam distribution circuit 8 and the bottom wall of the vaporization chamber 60, the latter having two vaporization zones 60A, 60B coming opposite the two nozzles 50 carried by the cover 7, the water coming from the nozzles 50 being projected onto the bottom wall 64 at the level of an injection zone 50A, 50B illustrated by a checkered circle.
  • the two nozzles 50, as well as the two associated vaporization zones 60A, 60B, are arranged symmetrically with respect to a longitudinal plane P extending perpendicularly to the front face and to the bottom wall 64 of the chamber. vaporization 60.
  • the vaporization chamber 60 comprises for each of the two vaporization zones 60A, 60B, a retention wall 65A, 65B which surrounds the vaporization zone 60A, 60B on part of its periphery, the retention wall 65A, 65B forming a cavity around the vaporization zone 60A, 60B in which liquid can be trapped when the bottom wall 64 is tilted vertically rearward, that is to say by pivoting its rear end down as shown in the Fig. 6C , but also when the bottom wall 64 is tilted vertically to the side, that is to say by causing the bottom wall 64 to pivot about a longitudinal axis passing through the front end and the rear end of the body heater 6, as shown in figure Figure 6A .
  • the two retention walls 65A, 65B extend symmetrically with respect to the plane P, each retention wall 65A, 65B originating on the peripheral wall 61 and comprising a first part along the rear edge of the vaporization zone 60A, 60B, extending globally in a plane perpendicular to the plane P, then a second part running along the vaporization zone 60A, 60B, extending longitudinally in the direction of the front end of the vaporization chamber 60, and a third part which is curved towards the interior of the vaporization zone 60A, 60B and which has a distal end which is separated from the peripheral wall 61 by a passage allowing the escape of the vapor.
  • the third part of the retention wall 65A, 65B extends substantially parallel to the peripheral wall 61 and delimits with the latter a circular front channel 60C, 60D which connects the vaporization zone 60A, 60B with a central channel 60E formed between the second parts of the retention walls 65A, 65B, this central channel 60E opening out into a rear cavity 60F arranged behind the first part of the retention wall 65A, 65B.
  • the first part of the retention wall 65A, 65B has a curved shape towards the interior of the vaporization zone 60A, 60B which forms a cavity 65C, 65D in which liquid, illustrated by a series of horizontal lines on the Figure 6B , can be stored when the vaporization chamber 60 is arranged vertically with its front end facing downwards.
  • the curved shape is obtained by giving an angular shape to the first part of the retaining wall 65A, 65B, the latter having two rectilinear portions meeting at an angle projecting inwards from the vaporization zone 60A, 60B.
  • the rear cavity 60F of the vaporization chamber 60 advantageously comprises a deflecting wall 66 which is arranged in the middle of the rear cavity 60F, facing the opening 63, the deflecting wall 66 deflecting the flow of vapor from the central channel 60E by direction of two side channels 60G, 60H which run along the first parts of the two retention walls 65A, 65B then the peripheral wall 61 by winding around the deflecting wall 66.
  • the deflecting wall 66 comprises two rectilinear portions which form between them a salient angle, of the order of 140°, facing the central channel 60E, the two rectilinear portions being extended by two end portions extending in the direction from the rear of the vaporization chamber 60, parallel to the longitudinal axis of the vaporization chamber 60.
  • the side channels 60G, 60H run along the front face of the deflecting wall 66, then the rear face of the deflecting wall 66 by performing a 180° turn around the end part of the deflecting wall 66, the vaporization chamber 60 comprising, at the edge of the opening 63, two end walls 67 which project towards the interior of the vaporization chamber 60 and define between them an outlet channel communicating with a common end of the side channels 60G, 60H.
  • the vaporization chamber 60 also advantageously comprises two side walls 68 arranged symmetrically with respect to the plane P and which extend from the peripheral wall 61 by projecting towards the interior of the vaporization chamber 60, the two side walls 68 extending obliquely forwards at an angle of the order of 45° with respect to the plane P. These two side walls 68 are arranged at the height of the end walls 67 of the deflecting wall 66 and limit the passage section of the side channels 60G, 60H by locally reducing their width by half.
  • the user When the user wishes to smooth out a garment, he fills the tank 10, preferably with water, then presses the button 4 to start the device.
  • the electrical resistor 62 of the heating body 6 is then supplied electrically until the vaporization chamber 60 reaches the set temperature of the thermostat, the treatment face 30A then reaching a temperature greater than 100° C. by thermal conduction with the heating body 6.
  • this causes the starting of the pump 5 which then injects water into the vaporization chamber 60 with a flow rate advantageously between 10 and 35 g/min and preferentially of the order of 25 g/min.
  • This flow is distributed between the two nozzles 50 at the level of the Y branch of the pipe so that the water is distributed over the two vaporization zones 60A, 60B making it possible to obtain a better distribution of the volume of water injected on the bottom wall 64 in the vaporization chamber 60.
  • the thermostat for regulating the heating body 6 is more often active, which allows an optimum heat supply to vaporize the water in the vaporization chamber 60 and limits the quantity of non-vaporized liquid water.
  • the vaporization chamber 60 thus produced has shapes that make it possible to trap the water droplets not yet vaporized in dedicated areas and thus to prevent them from being entrained with the flow of vapor outside of it. the vaporization chamber 60.
  • the vaporization chamber 60 when the vaporization chamber 60 is arranged in a lateral position, that is to say inclined to the side so that the bottom wall 64 is arranged vertically with one of its side edges facing downwards, the water injected into the vaporization chamber 60, and which is not yet vaporized, is stored in a front side retention tank provided in front of the retention wall 65A, 65B and a rear side retention tank provided behind the wall of retention 65A, 65B.
  • the two retention tanks are advantageously sized to be able to respectively collect a volume of liquid of the order of 2 and 4 cm 3 .
  • the water stored in these retention tanks is gradually vaporized by the heat given off by the heating body 6, the heat exchange with this water being favored by the presence of the side wall which projects towards the interior of the vaporization chamber. 60.
  • the vapor produced by the vaporization of the water injected into the evaporation zones and by the vaporization of the water collected in the side tray can then escape through the central channel 60E then through the side channel 60G, bypassing the deflecting wall 66 to reach the opening 63 and join the distribution circuit formed outside the vaporization chamber 60.
  • the deflecting wall 66 arranged upstream of the opening 63 has the advantage of avoiding any direct projection of water droplets through the outlet.
  • the path of the steam takes place in a similar and symmetrical manner when the vaporization chamber 60 is arranged in a lateral position with the other side edge facing down.
  • the vaporization chamber 60 when the vaporization chamber 60 is arranged in a vertical position with its front end facing downwards, the vaporization chamber 60 has three retention tanks that can store the water that has not yet been vaporized.
  • the three retention tanks consist of two median tanks formed by the first part of the retention walls 65A, 65B and a front tank formed by the circular front part of the peripheral wall 61.
  • the vaporization chamber 60 When the vaporization chamber 60 is in this vertical position, the vapor can escape freely following the path illustrated by the arrows to exit through the slot 31 without risk of expulsion of a large quantity of liquid.
  • the vaporization chamber 60 when the vaporization chamber 60 is arranged in a vertical position with its front end facing upwards, the vaporization chamber 60 has four retention tanks can store water not yet vaporized. These four retention tanks are constituted by two vaporization zones 60A, 60B and by two rear tanks formed on either side of the opening 63 by the end wall.
  • the device thus produced therefore has the advantage of providing improved performance, the geometry of the vaporization chamber making it possible in particular to use the vapor emission head in substantially all positions without risk of water spitting.
  • the device may comprise a series of steam outlet holes in place of the steam emission slot.
  • the flow rate of the pump, and therefore the flow rate of steam produced by the vaporization chamber may be adjustable by means of a button provided for this purpose.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)
  • Cookers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Devices For Medical Bathing And Washing (AREA)

Description

La présente invention concerne le domaine des appareils portatifs de défroissage à la vapeur comportant une poignée reliée à une tête d'émission de vapeur comportant une face de traitement destinée à venir verticalement en regard d'un vêtement à défroisser et comprenant au moins un orifice de sortie de vapeur. L'invention se rapporte plus particulièrement à un appareil dans lequel la tête d'émission de vapeur comporte un corps chauffant comprenant une chambre de vaporisation comportant une paroi de fond formant un angle compris entre 45° et 90° avec la face de traitement et comporte des moyens pour projeter du liquide dans la chambre de vaporisation.The present invention relates to the field of portable steam ironing devices comprising a handle connected to a steam emitting head comprising a treatment face intended to come vertically opposite a garment to be ironed and comprising at least one steam outlet. The invention relates more particularly to an apparatus in which the steam emission head comprises a heating body comprising a vaporization chamber comprising a bottom wall forming an angle of between 45° and 90° with the treatment face and comprising means for projecting liquid into the vaporization chamber.

Il est connu de la demande de brevets FR 2 169 206 A1 et WO 2016/090538 A1 , un appareil de défroissage à la vapeur comprenant une poignée surmontée d'une tête d'émission de vapeur comportant une face de traitement munie, d'un orifice de sortie de vapeur, destinée à venir verticalement en regard d'un vêtement à défroisser. Dans ce document la tête d'émission de vapeur comporte un corps chauffant comprenant une chambre de vaporisation comportant une paroi de fond formant un angle de l'ordre de 90° avec la face de traitement et comprend une buse, alimentée par une pompe, qui permet de projeter de l'eau en provenance du réservoir dans la chambre de vaporisation.It is known from the patent application EN 2 169 206 A1 and WO 2016/090538 A1 , a steam ironing device comprising a handle surmounted by a steam emitting head comprising a treatment face provided with a steam outlet orifice intended to come vertically opposite a garment to be ironed. In this document, the steam emission head comprises a heating body comprising a vaporization chamber comprising a bottom wall forming an angle of the order of 90° with the treatment face and comprises a nozzle, fed by a pump, which Allows you to project water from the reservoir into the vaporization chamber.

Un tel appareil de défroissage est prévu pour être tenu dans la main avec la poignée légèrement inclinée vers l'avant de manière à ce que la face de traitement diffusant de la vapeur soit disposée verticalement, en regard du vêtement à défroisser, et que la paroi de fond de la chambre de vaporisation soit disposée sensiblement horizontalement.Such a steaming device is intended to be held in the hand with the handle slightly inclined forwards so that the steam-diffusing treatment face is placed vertically, opposite the garment to be steamed, and that the wall bottom of the vaporization chamber is arranged substantially horizontally.

Cependant, l'utilisateur peut être tenté d'incliner la tête de l'appareil sur le côté, voire vers le bas, lorsqu'il effectue une séance de défroissage. Or, une telle inclinaison de l'appareil peut amener à des crachements d'eau par l'orifice de sortie de vapeur, en même temps que la vapeur, notamment lorsque l'utilisateur actionne fréquemment la gâchette pour obtenir un débit de vapeur important. L'invention qui suit vise à pallier ces inconvénients en proposant notamment un appareil de défroissage portatif qui permette de produire un débit de vapeur important et qui puisse être utilisé dans toutes les positions avec un risque limité de crachements de gouttelettes d'eau par l'orifice de sortie de vapeur.However, the user may be tempted to tilt the head of the device to the side, or even downwards, when performing a steaming session. However, such an inclination of the device can cause water to spit through the steam outlet, at the same time as the steam, in particular when the user frequently activates the trigger to obtain a high steam flow. The following invention aims to overcome these drawbacks by proposing in particular a portable steamer that can produce a high steam output and that can be used in any position with a limited risk of water droplets spitting out of the steam outlet.

Le but de l'invention est atteint par un appareil de défroissage à la vapeur comportant une poignée reliée à une tête d'émission de vapeur comportant une face de traitement destinée à venir verticalement en regard d'un vêtement à défroisser et comprenant au moins un orifice de sortie de vapeur, la tête d'émission de vapeur comportant un corps chauffant comprenant une chambre de vaporisation comportant une paroi de fond formant un angle compris entre 45° et 90° avec la face de traitement et comportant des moyens pour injecter du liquide dans la chambre de vaporisation, caractérisé en ce que les moyens pour injecter du liquide comprennent au moins deux buses injectant du liquide sur deux zones de vaporisation distinctes de la chambre de vaporisation.The object of the invention is achieved by a steam ironing device comprising a handle connected to a steam emitting head comprising a treatment face intended to come vertically opposite a garment to be ironed and comprising at least one steam outlet, the steam emission head comprising a heating body comprising a vaporization chamber comprising a bottom wall forming an angle of between 45° and 90° with the treatment face and comprising means for injecting liquid in the vaporization chamber, characterized in that the means for injecting liquid comprise at least two nozzles injecting liquid into two distinct vaporization zones of the vaporization chamber.

Une telle caractéristique permet d'injecter simultanément du liquide sur deux zones distinctes de la chambre de vaporisation ce qui permet d'obtenir une vaporisation plus rapide du liquide dans la chambre de vaporisation. En particulier une telle caractéristique permet d'avoir une température plus homogène dans la chambre de vaporisation ce qui favorise la production de vapeur. Enfin, lorsque la température du corps chauffant est régulée au moyen du thermostat, la répartition plus homogène de la température dans la chambre de vaporisation permet une réaction plus rapide du thermostat, propice à une meilleure vaporisation de l'eau injectée dans la chambre de vaporisation.Such a characteristic makes it possible to simultaneously inject liquid into two distinct zones of the vaporization chamber, which makes it possible to obtain faster vaporization of the liquid in the vaporization chamber. In particular, such a characteristic makes it possible to have a more homogeneous temperature in the vaporization chamber, which promotes the production of steam. Finally, when the temperature of the heating body is regulated by means of the thermostat, the more homogeneous distribution of the temperature in the vaporization chamber allows a faster reaction of the thermostat, conducive to a better vaporization of the water injected into the vaporization chamber. .

Selon une autre caractéristique de l'invention, le corps chauffant comporte une résistance électrique dont l'alimentation est régulée au moyen d'un thermostat.According to another characteristic of the invention, the heating body comprises an electrical resistor whose power supply is regulated by means of a thermostat.

Selon une autre caractéristique de l'invention, la paroi de fond comporte une extrémité avant orientée vers la face de traitement et une extrémité arrière située à l'opposé, les zones de vaporisation étant entourées sur une partie de leur pourtour par une paroi de rétention qui forme une cavité dans laquelle du liquide peut être piégé lorsque la paroi de fond est basculée verticalement vers l'arrière ou verticalement sur le côté.According to another characteristic of the invention, the bottom wall comprises a front end oriented towards the treatment face and a rear end located opposite, the vaporization zones being surrounded on part of their periphery by a retention wall which forms a cavity in which liquid can be trapped when the bottom wall is tilted vertically backwards or vertically to the side.

Par basculement de la paroi de fond verticalement vers l'arrière, on entend que la paroi de fond est disposée verticalement en faisant pivoter son extrémité arrière vers le bas.By tilting the bottom wall vertically backwards, it is meant that the bottom wall is arranged vertically by pivoting its rear end down.

Par basculement de la paroi de fond verticalement sur le côté, on entend que la paroi de fond est disposée verticalement en faisant pivoter la paroi de fond autour d'un axe longitudinal passant par l'extrémité avant et l'extrémité arrière du corps chauffant.By tilting the bottom wall vertically to the side, it is meant that the bottom wall is arranged vertically by causing the bottom wall to pivot around a longitudinal axis passing through the front end and the rear end of the heating body.

Selon une autre caractéristique de l'invention, la chambre de vaporisation est bordée latéralement par une paroi périphérique et est fermée à son extrémité supérieure par un couvercle rapporté sur la paroi périphérique, le couvercle comportant les buses.According to another characteristic of the invention, the vaporization chamber is bordered laterally by a peripheral wall and is closed at its upper end by a lid attached to the peripheral wall, the lid comprising the nozzles.

La chambre de vaporisation ainsi réalisée présente l'avantage d'être simple et économique à réaliser.The vaporization chamber thus produced has the advantage of being simple and economical to produce.

Selon une autre caractéristique de l'invention, la paroi périphérique comporte une ouverture établissant une communication entre l'intérieur de la chambre de vaporisation et un circuit de distribution de vapeur dans lequel la vapeur se diffuse jusqu'à l'orifice de sortie de vapeur, l'ouverture étant ménagée à une extrémité arrière de la chambre de vaporisation disposée à l'opposé de la face de traitement.According to another characteristic of the invention, the peripheral wall comprises an opening establishing communication between the interior of the vaporization chamber and a steam distribution circuit in which the steam diffuses as far as the steam outlet orifice. , the opening being provided at a rear end of the vaporization chamber arranged opposite the treatment face.

Une telle construction permet d'éviter que les éventuelles gouttelettes d'eau stockées dans la chambre de vaporisation ne s'écoulent par l'orifice de sortie de vapeur lorsque la paroi de fond est basculée vers l'avant.Such a construction makes it possible to prevent any droplets of water stored in the vaporization chamber from flowing through the steam outlet orifice when the bottom wall is tilted forwards.

Selon encore une autre caractéristique de l'invention, la paroi de rétention s'étend depuis la paroi périphérique vers l'intérieur de la chambre de vaporisation en passant derrière la zone de vaporisation, puis sur le côté de la zone de vaporisation et enfin au moins partiellement devant la zone de vaporisation sans toutefois rejoindre la paroi périphérique de sorte qu'il résulte un passage entre une extrémité distale de la paroi de rétention et la paroi périphérique.According to yet another characteristic of the invention, the retention wall extends from the peripheral wall towards the interior of the vaporization chamber passing behind the vaporization zone, then on the side of the vaporization zone and finally at the least partially in front of the vaporization zone without however joining the peripheral wall so that a passage results between a distal end of the retention wall and the peripheral wall.

Selon encore une autre caractéristique de l'invention, les passages des zones de vaporisation communiquent avec un canal central pour la diffusion de la vapeur s'étendant longitudinalement au centre de la chambre de vaporisation, les deux zones de vaporisation étant disposées symétriquement de part et d'autre du canal central.According to yet another characteristic of the invention, the passages of the vaporization zones communicate with a central channel for the diffusion of the vapor extending longitudinally in the center of the vaporization chamber, the two vaporization zones being arranged symmetrically on either side. else of center channel.

Une telle construction permet d'avoir un canal central qui n'est pas obstrué par l'eau présente dans la chambre de vaporisation lorsque la paroi de fond est basculée sur le côté.Such a construction makes it possible to have a central channel which is not obstructed by the water present in the vaporization chamber when the bottom wall is tilted to the side.

Selon encore une autre caractéristique de l'invention, le canal central débouche en regard d'une paroi déflectrice qui est disposée en regard de l'ouverture, la paroi déflectrice déviant le flux de vapeur issu du canal central en direction de deux canaux latéraux de sortie de vapeur qui s'étendent le long de la paroi périphérique et débouchent de part et d'autre de l'ouverture.According to yet another characteristic of the invention, the central channel opens opposite a deflecting wall which is arranged opposite the opening, the deflecting wall deflecting the flow of vapor from the central channel in the direction of two side channels of steam outlet which extend along the peripheral wall and emerge on either side of the opening.

Une telle construction permet d'éviter que le flux de vapeur issu du canal central ne s'échappe directement par l'ouverture en entrainant des gouttelettes d'eau.Such a construction makes it possible to prevent the flow of steam from the central channel from escaping directly through the opening, entraining droplets of water.

Selon encore une autre caractéristique de l'invention, la chambre de vaporisation comporte, en bordure de l'ouverture, deux parois d'extrémité qui font saillie vers l'intérieur de la chambre de vaporisation.According to yet another characteristic of the invention, the vaporization chamber comprises, at the edge of the opening, two end walls which project towards the inside of the vaporization chamber.

Une telle construction permet de limiter le risque d'écoulement d'eau lorsque la paroi de fond est basculée verticalement vers l'arrière.Such a construction makes it possible to limit the risk of water flowing when the bottom wall is tilted vertically rearward.

Selon encore une autre caractéristique de l'invention, la chambre de vaporisation fait saillie au milieu d'une enceinte du corps chauffant, l'enceinte définissant un circuit de distribution autour de la chambre de vaporisation.According to yet another characteristic of the invention, the vaporization chamber protrudes in the middle of an enclosure of the heating body, the enclosure defining a distribution circuit around the vaporization chamber.

Selon encore une autre caractéristique de l'invention, la face de traitement est portée par une plaque d'extrémité disposée à une extrémité longitudinale de la tête, le corps chauffant comportant une face avant qui vient au contact de la plaque d'extrémité, la face avant comprenant une lumière mettant en communication le trou de sortie de vapeur de la face de traitement avec l'enceinte du corps chauffant.According to yet another characteristic of the invention, the treatment face is carried by an end plate arranged at one longitudinal end of the head, the heating body comprising a front face which comes into contact with the end plate, the front face comprising a slot placing the steam outlet hole of the treatment face in communication with the enclosure of the heating body.

Une telle caractéristique permet de coupler thermiquement la face de traitement avec le corps chauffant pour maintenir la température de la face de traitement à une température supérieure à 100°C et éviter la condensation de la vapeur sur celle-ci.Such a characteristic makes it possible to thermally couple the treatment face with the heating body in order to maintain the temperature of the treatment face at a temperature above 100° C. and to prevent the condensation of the vapor thereon.

Selon encore une autre caractéristique de l'invention, les deux buses injectent du liquide sur deux zones de vaporisation distinctes de la paroi de fond de la chambre de vaporisation.According to yet another characteristic of the invention, the two nozzles inject liquid onto two distinct vaporization zones of the bottom wall of the vaporization chamber.

Une telle caractéristique permet d'optimiser le fonctionnement de la chambre de vaporisation lorsque la tête de défroissage est disposée sensiblement horizontalement avec la poignée de l'appareil orientée vers le bas.Such a feature makes it possible to optimize the operation of the vaporization chamber when the steaming head is arranged substantially horizontally with the handle of the device facing downwards.

Selon une autre caractéristique de l'invention, la paroi de fond forme un angle avec la face de traitement compris entre 75° et 90° et préférentiellement de l'ordre de 90°.According to another characteristic of the invention, the bottom wall forms an angle with the treatment face of between 75° and 90° and preferably of the order of 90°.

Une telle caractéristique présente l'avantage d'optimiser la répartition du liquide sur la paroi de fond de la chambre de vaporisation dans la position d'utilisation la plus courante de l'appareil.Such a characteristic has the advantage of optimizing the distribution of the liquid on the bottom wall of the vaporization chamber in the most common position of use of the device.

Selon encore une autre caractéristique de l'invention, les deux buses sont disposées symétriquement de part et d'autre d'un plan P médian perpendiculaire à la face avant et à la paroi de fond de la chambre de vaporisation.According to yet another characteristic of the invention, the two nozzles are arranged symmetrically on either side of a median plane P perpendicular to the front face and to the bottom wall of the vaporization chamber.

Une telle caractéristique permet d'obtenir des performances équivalentes de l'appareil lorsque l'appareil est basculé sur l'un ou l'autre de ses côtés.Such a characteristic makes it possible to obtain equivalent performance of the device when the device is tilted on one or the other of its sides.

Selon encore une autre caractéristique de l'invention, l'ensemble de la chambre de vaporisation est symétrique par rapport au plan P.According to yet another characteristic of the invention, the whole of the vaporization chamber is symmetrical with respect to the plane P.

Selon encore une autre caractéristique de l'invention, l'appareil comporte un boitier portatif comprenant la tête, la poignée et un réservoir de liquide, la chambre de vaporisation étant alimentée en liquide du réservoir au moyen d'une pompe, avantageusement électrique, intégrée dans le boitier.According to yet another characteristic of the invention, the device comprises a portable box comprising the head, the handle and a reservoir of liquid, the vaporization chamber being supplied with liquid from the reservoir by means of a pump, advantageously electric, integrated in the box.

Une telle construction permet la réalisation d'un appareil compact avec de très bonnes performances de vaporisation.Such a construction allows the production of a compact device with very good vaporization performance.

Selon encore une autre caractéristique de l'invention, la pompe alimente la chambre de vaporisation avec de l'eau en provenance du réservoir avec un débit compris entre 10 et 35 gr/min et préférentiellement de l'ordre de 25gr/min.According to yet another characteristic of the invention, the pump supplies the vaporization chamber with water coming from the reservoir with a flow rate of between 10 and 35 g/min and preferably of the order of 25 g/min.

On comprendra mieux les buts, aspects et avantages de la présente invention d'après la description donnée ci-après d'un mode particulier de réalisation de l'invention présenté à titre d'exemple non limitatif, en se référant aux dessins annexés dans lesquels :

  • la figure 1 est une vue en perspective d'un appareil de repassage selon un mode particulier de réalisation de l'invention ;
  • la figure 2 est une autre vue en perspective de l'appareil de la figure 1 démunie d'une partie du boîtier recouvrant la tête de l'appareil ;
  • la figure 3 est une vue de côté du corps chauffant équipant l'appareil de la figure 1 accouplé à la plaque d'extrémité ;
  • la figure 4 est une vue en perspective éclatée de l'ensemble illustré à la figure 3 ;
  • la figure 5 est une vue de dessus du corps chauffant démuni de son couvercle de fermeture ;
  • Les figures 6A à 6C sont des vues du corps chauffant lorsque ce dernier est disposé verticalement selon différentes positions.
The aims, aspects and advantages of the present invention will be better understood from the description given below of a particular embodiment of the invention presented by way of non-limiting example, with reference to the appended drawings in which :
  • the figure 1 is a perspective view of an ironing appliance according to a particular embodiment of the invention;
  • the picture 2 is another perspective view of the device from the figure 1 devoid of a part of the casing covering the head of the device;
  • the picture 3 is a side view of the heating body equipping the apparatus of the figure 1 mated to end plate;
  • the figure 4 is an exploded perspective view of the assembly shown in picture 3 ;
  • the figure 5 is a top view of the heating body stripped of its closure cover;
  • The figures 6A to 6C are views of the heating body when the latter is arranged vertically in different positions.

Seuls les éléments nécessaires à la compréhension de l'invention ont été représentés. Pour faciliter la lecture des dessins, les mêmes éléments portent les mêmes références d'une figure à l'autre.Only the elements necessary for understanding the invention have been represented. To facilitate reading of the drawings, the same elements bear the same references from one figure to another.

On notera que dans ce document, les termes "horizontal", "vertical", "inférieur", "supérieur", "avant", "arrière", "fond, "plafond" employés pour décrire l'appareil de défroissage font référence à cet appareil lorsqu'il repose à plat sur ses pieds.It will be noted that in this document, the terms "horizontal", "vertical", "lower", "upper", "front", "rear", "bottom", "ceiling" used to describe the steaming device refer to this device when it is lying flat on its feet.

La figure 1 représente un appareil de repassage comportant un boîtier portatif en matière plastique comprenant une embase 1 surmontée d'une poignée 2 et d'une tête 3 d'émission de vapeur, l'embase 1 comprenant une face inférieure plane munie de pieds sur lesquels l'appareil peut venir reposer stablement dans une position sensiblement verticale.The figure 1 represents an ironing appliance comprising a portable case made of plastic material comprising a base 1 surmounted by a handle 2 and a head 3 for emitting steam, the base 1 comprising a flat underside provided with feet on which the device can come to rest stably in a substantially vertical position.

L'embase 1 de l'appareil comporte un cordon 11 d'alimentation électrique permettant son raccordement à un réseau électrique domestique et la tête 3 d'émission de vapeur comporte une face arrière munie d'un bouton 4, visible sur la figure 2, permettant de mettre l'appareil sous tension.The base 1 of the appliance comprises an electric power cord 11 enabling it to be connected to a domestic electric network and the head 3 for emitting steam comprises a rear face provided with a button 4, visible on the picture 2 , to turn on the device.

L'embase 1 renferme une pompe 5 électrique, illustré en pointillé sur la figure 1, dont le fonctionnement est commandé au moyen d'une gâchette 52 disposée au sommet de la poignée 2, la gâchette 52 actionnant, de manière connue en soi, un interrupteur relié à une carte électronique de pilotage de la pompe 5, non représentés sur les figures. La pompe 5 est alimentée en liquide par un réservoir 10 ménagé partiellement dans l'embase 1 et dans la partie inférieure de la poignée 2, ce réservoir 10 étant avantageusement amovible de l'appareil pour faciliter son remplissage.The base 1 contains an electric pump 5, illustrated in dotted lines on the figure 1 , the operation of which is controlled by means of a trigger 52 disposed at the top of the handle 2, the trigger 52 actuating, in a manner known per se, a switch connected to an electronic card for controlling the pump 5, not shown in the figures. The pump 5 is supplied with liquid by a reservoir 10 formed partially in the base 1 and in the lower part of the handle 2, this reservoir 10 being advantageously removable from the device to facilitate its filling.

La tête 3 d'émission de vapeur présente une forme élancée s'étendant transversalement à la direction longitudinale de la poignée 2 et comporte une extrémité longitudinale munie d'une plaque d'extrémité 30 plane présentant une face de traitement 30A destinée à venir verticalement en regard du vêtement à défroisser, cette plaque d'extrémité 30 comprenant une fente 31 pour l'émission d'un flux de vapeur.The steam emitting head 3 has a slender shape extending transversely to the longitudinal direction of the handle 2 and has a longitudinal end provided with a flat end plate 30 having a treatment face 30A intended to come vertically into next to the garment to be smoothed, this end plate 30 comprising a slot 31 for emitting a stream of steam.

Conformément à la figure 2, la tête 3 d'émission de vapeur renferme un corps chauffant 6 qui est fermé à son extrémité supérieure par un couvercle 7 recevant deux buses 50 reliées par un tuyau 51 en silicone en forme de Y à la pompe 5, le corps chauffant 6 présentant une forme générale en parallélépipède rectangle comprenant une face avant venant au contact thermique de la plaque d'extrémité 30.In accordance with the picture 2 , the steam emission head 3 encloses a heating body 6 which is closed at its upper end by a cover 7 receiving two nozzles 50 connected by a Y-shaped silicone pipe 51 to the pump 5, the heating body 6 having a generally rectangular parallelepiped shape comprising a front face coming into thermal contact with the end plate 30.

Conformément aux figures 4 et 5, le corps chauffant 6 définit une enceinte au centre de laquelle est disposée une chambre de vaporisation 60, cette dernière étant délimitée latéralement par une paroi périphérique 61 présentant une extrémité avant semi-circulaire et une extrémité arrière rectiligne, la chambre de vaporisation 60 étant fermée à son extrémité supérieure par le couvercle 7 , ce dernier venant reposer de manière étanche sur le sommet de la paroi périphérique 61.In accordance with figures 4 and 5 , the heating body 6 defines an enclosure at the center of which is arranged a vaporization chamber 60, the latter being delimited laterally by a peripheral wall 61 having a semi-circular front end and a straight rear end, the vaporization chamber 60 being closed at its upper end by the cover 7, the latter coming to rest in a sealed manner on the top of the peripheral wall 61.

De manière préférentielle, le corps chauffant 6 est constitué par une fonderie en aluminium dans laquelle est noyée une résistance électrique 62, de type résistance blindée en forme de U, d'une puissance de l'ordre de 1000W, l'alimentation de la résistance électrique 62 étant régulée au moyen d'un thermostat autour d'une température de consigne, mesurée au centre de la chambre de vaporisation 60, comprise entre 110°C et 150°C. Le corps chauffant 6 peut également comporter un coupe circuit fusible qui coupe l'alimentation électrique de la résistance électrique 62 en cas de défaillance du thermostat, un tel coupe circuit pouvant par exemple agir lorsque la température du corps chauffant 6 dépasse 250°C.Preferably, the heating body 6 consists of an aluminum foundry in which is embedded an electrical resistor 62, of the U-shaped shielded resistor type, with a power of the order of 1000W, the supply of the resistor electric 62 being regulated by means of a thermostat around a set temperature, measured at the center of the vaporization chamber 60, between 110°C and 150°C. The heating body 6 can also comprise a fuse circuit breaker which cuts the electrical supply to the electrical resistance 62 in the event of failure of the thermostat, such a circuit breaker being able for example to act when the temperature of the heating body 6 exceeds 250°C.

L'enceinte du corps chauffant 6 comporte, à l'extérieur de la paroi périphérique 61, un volume qui définit un circuit de distribution 8, de part et d'autre de la chambre de vaporisation 60, dans lequel la vapeur peut s'écouler en direction d'une lumière 80 ménagée dans la face avant du corps chauffant 6, visible sur la figure 4, cette lumière 80 présentant une forme correspondant à la forme de la fente 31 d'émission de vapeur de la face de traitement 30A de la tête 3.The enclosure of the heating body 6 comprises, outside the peripheral wall 61, a volume which defines a distribution circuit 8, on either side of the vaporization chamber 60, in which the steam can flow. in the direction of a slot 80 provided in the front face of the heating body 6, visible on the figure 4 , this light 80 having a shape corresponding to the shape of the vapor emission slot 31 of the treatment face 30A of the head 3.

La chambre de vaporisation 60 communique avec le circuit de distribution 8 de vapeur par une ouverture 63 ménagée à une extrémité arrière de la chambre de vaporisation 60, la vapeur sortant par cette ouverture 63 pouvant s'écouler dans le circuit de distribution de vapeur 8, de part et d'autre de la chambre de vaporisation 60 pour être ensuite diffusée au travers de la fente 31.The vaporization chamber 60 communicates with the steam distribution circuit 8 through an opening 63 provided at a rear end of the vaporization chamber 60, the steam exiting through this opening 63 being able to flow into the steam distribution circuit 8, on either side of the vaporization chamber 60 to then be diffused through the slot 31.

Comme on peut le voir sur la figure 5, le corps chauffant 6 comporte une paroi de fond 64, présentant de multiples plots 64A en saillies, qui constitue à la fois la paroi de fond du circuit de distribution 8 de vapeur et la paroi de fond de la chambre de vaporisation 60, cette dernière présentant deux zones de vaporisation 60A, 60B venant en regard des deux buses 50 portées par le couvercle 7, l'eau issue des buses 50 étant projetée sur la paroi de fond 64 au niveau d'une zone d'injection 50A, 50B illustrée par un cercle quadrillé.As can be seen on the figure 5 , the heating body 6 comprises a bottom wall 64, having multiple projecting studs 64A, which constitutes both the bottom wall of the steam distribution circuit 8 and the bottom wall of the vaporization chamber 60, the latter having two vaporization zones 60A, 60B coming opposite the two nozzles 50 carried by the cover 7, the water coming from the nozzles 50 being projected onto the bottom wall 64 at the level of an injection zone 50A, 50B illustrated by a checkered circle.

De manière préférentielle, les deux buses 50, ainsi que les deux zones de vaporisation 60A, 60B associées, sont disposées symétriquement par rapport à un plan P longitudinal s'étendant perpendiculairement à la face avant et à la paroi de fond 64 de la chambre de vaporisation 60.Preferably, the two nozzles 50, as well as the two associated vaporization zones 60A, 60B, are arranged symmetrically with respect to a longitudinal plane P extending perpendicularly to the front face and to the bottom wall 64 of the chamber. vaporization 60.

La chambre de vaporisation 60 comporte pour chacune des deux zones de vaporisation 60A, 60B, une paroi de rétention 65A, 65B qui vient entourer la zone de vaporisation 60A, 60B sur une partie de son pourtour, la paroi de rétention 65A, 65B formant une cavité autour de la zone de vaporisation 60A, 60B dans laquelle du liquide peut être piégé lorsque la paroi de fond 64 est basculée verticalement vers l'arrière, c'est-à-dire en faisant pivoter son extrémité arrière vers le bas ainsi que cela est illustré sur la figure 6C, mais également lorsque la paroi de fond 64 est basculée verticalement sur le côté, c'est-à-dire en faisant pivoter la paroi de fond 64 autour d'un axe longitudinal passant par l'extrémité avant et l'extrémité arrière du corps chauffant 6, ainsi que cela est illustré sur la figure 6A.The vaporization chamber 60 comprises for each of the two vaporization zones 60A, 60B, a retention wall 65A, 65B which surrounds the vaporization zone 60A, 60B on part of its periphery, the retention wall 65A, 65B forming a cavity around the vaporization zone 60A, 60B in which liquid can be trapped when the bottom wall 64 is tilted vertically rearward, that is to say by pivoting its rear end down as shown in the Fig. 6C , but also when the bottom wall 64 is tilted vertically to the side, that is to say by causing the bottom wall 64 to pivot about a longitudinal axis passing through the front end and the rear end of the body heater 6, as shown in figure Figure 6A .

De manière préférentielle, les deux parois de rétention 65A, 65B s'étendent symétriquement par rapport au plan P, chaque paroi de rétention 65A, 65B prenant naissance sur la paroi périphérique 61 et comprenant une première partie longeant le bord arrière de la zone de vaporisation 60A, 60B, en s'étendant globalement dans un plan perpendiculaire au plan P, puis une deuxième partie longeant la zone de vaporisation 60A, 60B, en s'étendant longitudinalement en direction de l'extrémité avant de la chambre de vaporisation 60, et une troisième partie qui est incurvée vers l'intérieur de la zone de vaporisation 60A, 60B et qui présente une extrémité distale qui est séparée de la paroi périphérique 61 par un passage permettant l'échappement de la vapeur.Preferably, the two retention walls 65A, 65B extend symmetrically with respect to the plane P, each retention wall 65A, 65B originating on the peripheral wall 61 and comprising a first part along the rear edge of the vaporization zone 60A, 60B, extending globally in a plane perpendicular to the plane P, then a second part running along the vaporization zone 60A, 60B, extending longitudinally in the direction of the front end of the vaporization chamber 60, and a third part which is curved towards the interior of the vaporization zone 60A, 60B and which has a distal end which is separated from the peripheral wall 61 by a passage allowing the escape of the vapor.

La troisième partie de la paroi de rétention 65A, 65B s'étend sensiblement parallèlement à la paroi périphérique 61 et délimite avec cette dernière un canal avant circulaire 60C, 60D qui relie la zone de vaporisation 60A, 60B avec un canal central 60E ménagé entre les deuxièmes parties des parois de rétention 65A, 65B, ce canal central 60E débouchant dans une cavité arrière 60F disposée derrière la première partie de la paroi de rétention 65A, 65B.The third part of the retention wall 65A, 65B extends substantially parallel to the peripheral wall 61 and delimits with the latter a circular front channel 60C, 60D which connects the vaporization zone 60A, 60B with a central channel 60E formed between the second parts of the retention walls 65A, 65B, this central channel 60E opening out into a rear cavity 60F arranged behind the first part of the retention wall 65A, 65B.

De manière préférentielle, la première partie de la paroi de rétention 65A, 65B présente une forme incurvée vers l'intérieur de la zone de vaporisation 60A, 60B qui forme une cavité 65C, 65D dans laquelle du liquide, illustré par une série de lignes horizontales sur la figure 6B, peut être stocké lorsque la chambre de vaporisation 60 est disposée verticalement avec son extrémité avant orientée vers le bas.Preferably, the first part of the retention wall 65A, 65B has a curved shape towards the interior of the vaporization zone 60A, 60B which forms a cavity 65C, 65D in which liquid, illustrated by a series of horizontal lines on the Figure 6B , can be stored when the vaporization chamber 60 is arranged vertically with its front end facing downwards.

Dans l'exemple illustré, la forme incurvée est obtenue en donnant une forme angulaire à la première partie de la paroi de rétention 65A, 65B, cette dernière présentant deux portions rectilignes se rejoignant au niveau d'un angle faisant saillie vers l'intérieur de la zone de vaporisation 60A, 60B.In the example illustrated, the curved shape is obtained by giving an angular shape to the first part of the retaining wall 65A, 65B, the latter having two rectilinear portions meeting at an angle projecting inwards from the vaporization zone 60A, 60B.

La cavité arrière 60F de la chambre de vaporisation 60 comporte avantageusement une paroi déflectrice 66 qui est disposée au milieu de la cavité arrière 60F, en regard de l'ouverture 63, la paroi déflectrice 66 déviant le flux de vapeur issu du canal central 60E en direction de deux canaux latéraux 60G, 60H qui longent les premières parties des deux parois de rétention 65A, 65B puis la paroi périphérique 61 en s'enroulant autour de la paroi déflectrice 66.The rear cavity 60F of the vaporization chamber 60 advantageously comprises a deflecting wall 66 which is arranged in the middle of the rear cavity 60F, facing the opening 63, the deflecting wall 66 deflecting the flow of vapor from the central channel 60E by direction of two side channels 60G, 60H which run along the first parts of the two retention walls 65A, 65B then the peripheral wall 61 by winding around the deflecting wall 66.

De manière préférentielle, la paroi déflectrice 66 comporte deux portions rectilignes qui forment entre elles un angle saillant, de l'ordre de 140°, faisant face au canal central 60E, les deux portions rectilignes se prolongeant par deux parties terminales s'étendant en direction de l'arrière de la chambre de vaporisation 60, parallèlement à l'axe longitudinal de la chambre de vaporisation 60.Preferably, the deflecting wall 66 comprises two rectilinear portions which form between them a salient angle, of the order of 140°, facing the central channel 60E, the two rectilinear portions being extended by two end portions extending in the direction from the rear of the vaporization chamber 60, parallel to the longitudinal axis of the vaporization chamber 60.

Les canaux latéraux 60G, 60H longent la face avant de la paroi déflectrice 66, puis la face arrière de la paroi déflectrice 66 en effectuant un virage à 180° autour de la partie terminale de la paroi déflectrice 66, la chambre de vaporisation 60 comportant, en bordure de l'ouverture 63, deux parois d'extrémité 67 qui font saillie vers l'intérieur de la chambre de vaporisation 60 et définissent entre elles un canal de sortie communiquant avec une extrémité commune des canaux latéraux 60G, 60H.The side channels 60G, 60H run along the front face of the deflecting wall 66, then the rear face of the deflecting wall 66 by performing a 180° turn around the end part of the deflecting wall 66, the vaporization chamber 60 comprising, at the edge of the opening 63, two end walls 67 which project towards the interior of the vaporization chamber 60 and define between them an outlet channel communicating with a common end of the side channels 60G, 60H.

La chambre de vaporisation 60 comporte également avantageusement deux parois latérales 68 disposées symétriquement par rapport au plan P et qui s'étendent depuis la paroi périphérique 61 en faisant saillie vers l'intérieur de la chambre de vaporisation 60, les deux parois latérales 68 s'étendant obliquement vers l'avant en faisant un angle de l'ordre de 45° par rapport au plan P. Ces deux parois latérales 68 sont disposées à hauteur des parois d'extrémité 67 de la paroi déflectrice 66 et limitent la section de passage des canaux latéraux 60G, 60H en réduisant localement leur largeur de moitié.The vaporization chamber 60 also advantageously comprises two side walls 68 arranged symmetrically with respect to the plane P and which extend from the peripheral wall 61 by projecting towards the interior of the vaporization chamber 60, the two side walls 68 extending obliquely forwards at an angle of the order of 45° with respect to the plane P. These two side walls 68 are arranged at the height of the end walls 67 of the deflecting wall 66 and limit the passage section of the side channels 60G, 60H by locally reducing their width by half.

Le fonctionnement de l'appareil ainsi réalisé va maintenant être décrit.The operation of the apparatus thus produced will now be described.

Lorsque l'utilisateur souhaite défroisser un vêtement il remplit le réservoir 10, de préférence avec de l'eau, puis appui sur le bouton 4 de mise en marche de l'appareil. La résistance électrique 62 du corps chauffant 6 est alors alimentée électriquement jusqu'à ce que la chambre de vaporisation 60 atteigne la température de consigne du thermostat, la face de traitement 30A atteignant alors une température supérieure à 100°C par conduction thermique avec le corps chauffant 6.When the user wishes to smooth out a garment, he fills the tank 10, preferably with water, then presses the button 4 to start the device. The electrical resistor 62 of the heating body 6 is then supplied electrically until the vaporization chamber 60 reaches the set temperature of the thermostat, the treatment face 30A then reaching a temperature greater than 100° C. by thermal conduction with the heating body 6.

Si l'utilisateur actionne la gâchette 52, cela provoque la mise en marche de la pompe 5 qui injecte alors de l'eau dans la chambre de vaporisation 60 avec un débit avantageusement compris entre 10 et 35 gr/min et préférentiellement de l'ordre de 25 gr/min.If the user activates the trigger 52, this causes the starting of the pump 5 which then injects water into the vaporization chamber 60 with a flow rate advantageously between 10 and 35 g/min and preferentially of the order of 25 g/min.

Ce débit est réparti entre les deux buses 50 au niveau de la branche en Y du tuyau de sorte que l'eau est répartie sur les deux zones de vaporisation 60A, 60B permettant d'obtenir une meilleure répartition du volume d'eau injecté sur la paroi de fond 64 dans la chambre de vaporisation 60. Il en résulte une répartition plus homogène des calories perdues par le corps chauffant 6 pour vaporiser l'eau injectée sur la paroi de fond 64 et donc un moins grand gradient thermique entre les différents points de la paroi de fond 64. Ainsi, le thermostat de régulation du corps chauffant 6 est plus souvent actif, ce qui permet un apport calorifique optimal pour vaporiser l'eau dans la chambre de vaporisation 60 et limite la quantité d'eau liquide non vaporisée.This flow is distributed between the two nozzles 50 at the level of the Y branch of the pipe so that the water is distributed over the two vaporization zones 60A, 60B making it possible to obtain a better distribution of the volume of water injected on the bottom wall 64 in the vaporization chamber 60. This results in a more homogeneous distribution of the calories lost by the heating body 6 to vaporize the water injected on the bottom wall 64 and therefore a smaller thermal gradient between the different points of the bottom wall 64. Thus, the thermostat for regulating the heating body 6 is more often active, which allows an optimum heat supply to vaporize the water in the vaporization chamber 60 and limits the quantity of non-vaporized liquid water.

De plus, la chambre de vaporisation 60 ainsi réalisée possède des formes qui permettent de piéger les gouttelettes d'eau non encore vaporisées dans des zones dédiées et d'éviter ainsi qu'elles ne soient entrainées avec le flux de vapeur à l'extérieur de la chambre de vaporisation 60.In addition, the vaporization chamber 60 thus produced has shapes that make it possible to trap the water droplets not yet vaporized in dedicated areas and thus to prevent them from being entrained with the flow of vapor outside of it. the vaporization chamber 60.

En effet, comme cela est illustré sur la figure 6A, lorsque la chambre de vaporisation 60 est disposée en position latérale, c'est-à-dire inclinée sur le côté de telle sorte que la paroi de fond 64 se trouve disposée verticalement avec l'un de ses bords latéraux orienté vers le bas, l'eau injectée dans la chambre de vaporisation 60, et qui n'est pas encore vaporisée, est stockée dans un bac de rétention latéral avant ménagé devant la paroi de rétention 65A, 65B et un bac de rétention latéral arrière ménagé derrière la paroi de rétention 65A, 65B. Dans l'exemple particulier de réalisation illustré sur les figures, les deux bacs de rétention sont avantageusement dimensionnés pour pouvoir respectivement recueillir un volume de liquide de l'ordre de 2 et 4 cm3.Indeed, as illustrated in the Figure 6A , when the vaporization chamber 60 is arranged in a lateral position, that is to say inclined to the side so that the bottom wall 64 is arranged vertically with one of its side edges facing downwards, the water injected into the vaporization chamber 60, and which is not yet vaporized, is stored in a front side retention tank provided in front of the retention wall 65A, 65B and a rear side retention tank provided behind the wall of retention 65A, 65B. In the particular embodiment illustrated in the figures, the two retention tanks are advantageously sized to be able to respectively collect a volume of liquid of the order of 2 and 4 cm 3 .

L'eau stockée dans ces bacs de rétention est progressivement vaporisée par la chaleur dégagée par le corps chauffant 6, l'échange thermique avec cette eau étant favorisée par la présence de la paroi latérale qui fait saillie vers l'intérieur de la chambre de vaporisation 60.The water stored in these retention tanks is gradually vaporized by the heat given off by the heating body 6, the heat exchange with this water being favored by the presence of the side wall which projects towards the interior of the vaporization chamber. 60.

Conformément aux flèches qui illustrent, sur la figure 6A, le parcours du flux de vapeur dans cette position latérale de la chambre de vaporisation 60, la vapeur produite par la vaporisation de l'eau injectée dans les zones d'évaporations et par la vaporisation de l'eau recueillie dans le bac latéral peut alors s'échapper par le canal central 60E puis par le canal latéral 60G, en contournant la paroi déflectrice 66 pour atteindre l'ouverture 63 et rejoindre le circuit de distribution ménagé à l'extérieur de la chambre de vaporisation 60. Lors de ce cheminement de la vapeur, la paroi déflectrice 66 disposée en amont de l'ouverture 63 présente l'avantage d'éviter toute projection directe de gouttelettes d'eau au travers de la sortie.In accordance with the arrows which illustrate, on the Figure 6A , the path of the steam flow in this lateral position of the vaporization chamber 60, the vapor produced by the vaporization of the water injected into the evaporation zones and by the vaporization of the water collected in the side tray can then escape through the central channel 60E then through the side channel 60G, bypassing the deflecting wall 66 to reach the opening 63 and join the distribution circuit formed outside the vaporization chamber 60. During this progression of vapor, the deflecting wall 66 arranged upstream of the opening 63 has the advantage of avoiding any direct projection of water droplets through the outlet.

Bien entendu, compte tenu de la symétrie de la chambre de vaporisation 60 par rapport au plan P longitudinal, le parcours de la vapeur s'effectue de manière semblable et symétrique lorsque que la chambre de vaporisation 60 est disposée en position latérale avec l'autre bord latéral orienté vers le bas.Of course, given the symmetry of the vaporization chamber 60 with respect to the longitudinal plane P, the path of the steam takes place in a similar and symmetrical manner when the vaporization chamber 60 is arranged in a lateral position with the other side edge facing down.

Comme cela est illustré sur la figure 6B, lorsque la chambre de vaporisation 60 est disposée en position verticale avec son extrémité avant orientée vers le bas, la chambre de vaporisation 60 dispose de trois bacs de rétention pouvant stocker l'eau non encore vaporisée. Les trois bacs de rétention sont constitués par deux bacs médians formés par la première partie des parois de rétention 65A, 65B et un bac avant formé par la partie avant circulaire de la paroi périphérique 61.As illustrated in the Figure 6B , when the vaporization chamber 60 is arranged in a vertical position with its front end facing downwards, the vaporization chamber 60 has three retention tanks that can store the water that has not yet been vaporized. The three retention tanks consist of two median tanks formed by the first part of the retention walls 65A, 65B and a front tank formed by the circular front part of the peripheral wall 61.

Lorsque la chambre de vaporisation 60 est dans cette position verticale, la vapeur peut s'échapper librement en suivant le parcours illustré par les flèches pour sortir par la fente 31 sans risque d'expulsion d'une grande quantité de liquide.When the vaporization chamber 60 is in this vertical position, the vapor can escape freely following the path illustrated by the arrows to exit through the slot 31 without risk of expulsion of a large quantity of liquid.

Comme cela est illustré sur la figure 6C, lorsque la chambre de vaporisation 60 est disposée en position verticale avec son extrémité avant orientée vers le haut, la chambre de vaporisation 60 dispose de quatre bacs de rétention pouvant stocker l'eau non encore vaporisée. Ces quatre bacs de rétention sont constitués par deux zones de vaporisation 60A, 60B et par deux bacs arrière formés de part et d'autre de l'ouverture 63 par la paroi d'extrémité.As illustrated in the Fig. 6C , when the vaporization chamber 60 is arranged in a vertical position with its front end facing upwards, the vaporization chamber 60 has four retention tanks can store water not yet vaporized. These four retention tanks are constituted by two vaporization zones 60A, 60B and by two rear tanks formed on either side of the opening 63 by the end wall.

L'appareil ainsi réalisé présente donc l'avantage de procurer des performances améliorées, la géométrie de la chambre de vaporisation permettant notamment d'utiliser la tête d'émission de vapeur dans sensiblement toutes les positions sans risque de crachement d'eau.The device thus produced therefore has the advantage of providing improved performance, the geometry of the vaporization chamber making it possible in particular to use the vapor emission head in substantially all positions without risk of water spitting.

Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention.Of course, the invention is in no way limited to the embodiment described and illustrated which has been given only by way of example. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without thereby departing from the scope of protection of the invention.

Ainsi dans une variante de réalisation non représentée, l'appareil pourra comporter une série de trous de sortie de vapeur à la place de la fente d'émission de vapeur.Thus, in a variant embodiment not shown, the device may comprise a series of steam outlet holes in place of the steam emission slot.

Ainsi dans une variante de réalisation non représentée, le débit de la pompe, et donc le débit de vapeur produit par la chambre de vaporisation, pourra être réglable au moyen d'un bouton prévu à cet effet.Thus, in a variant embodiment not shown, the flow rate of the pump, and therefore the flow rate of steam produced by the vaporization chamber, may be adjustable by means of a button provided for this purpose.

Claims (14)

  1. Steam straightening apparatus comprising a handle (2) connected to a steam-emitting head (3) comprising a treatment surface (30A) intended to vertically face a garment to be straightened and comprising at least one steam outlet port (31), the steam-emitting head (3) comprising a heating body (6) comprising a steaming chamber (60) which comprises a bottom wall (64) forming an angle of 45° to 90° with the treatment surface (30A) and comprising means (50) for injecting liquid into the steaming chamber (60), characterised in that said means (50) for injecting liquid comprise at least two nozzles (50) injecting liquid onto two separate steaming areas (60A, 60B) of the steaming chamber (60).
  2. Straightening apparatus according to claim 1, characterised in that the bottom wall (64) comprises a front end oriented towards the treatment surface (30A) and a rear end situated opposite, and in that the steaming areas (60A, 60B) are surrounded on a portion of their circumference by a retention wall (65A, 65B) which forms a cavity (65C, 65D) in which liquid can be trapped when the bottom wall (64) is tilted vertically towards the rear or vertically to the side.
  3. Straightening apparatus according to claim 2, characterised in that the steaming chamber (60) is laterally bordered by a peripheral wall (61) and is closed at its upper end by a lid (7) attached to the peripheral wall (61), the lid (7) comprising the nozzles (50).
  4. Straightening apparatus according to claim 3, characterised in that the peripheral wall (61) comprises an opening (63) establishing communication between the interior of the steaming chamber (60) and a steam distribution circuit in which the steam is diffused to the steam outlet port and in that said opening (63) is provided at a rear end of the steaming chamber (60) arranged opposite the treatment surface (30A).
  5. Straightening apparatus according to claim 4, characterised in that the retention wall (65A, 65B) extends from the peripheral wall (61) into the interior of the steaming chamber (60), passing behind the steaming area (60A, 60B), then to the side of the steaming area (60A, 60B), and finally at least partially in front of the steaming area (60A, 60B), but without reaching the peripheral wall (61), resulting in a passage between a distal end of the retention wall (65A, 65B) and the peripheral wall (61).
  6. Straightening apparatus according to claim 5, characterised in that said passages of the steaming areas (60A, 60B) communicate with a central channel (60E) for steam diffusion extending longitudinally in the centre of the steaming chamber (60) and in that the two steaming areas (60A, 60B) are arranged symmetrically on either side of the central channel (60E).
  7. Straightening apparatus according to claim 6, characterised in that the central channel (60E) discharges opposite a deflecting wall (66) which is arranged opposite the opening (63), the deflecting wall (66) diverting the steam flow from the central channel (60E) towards two lateral steam outlet channels (60F), (60G) which extend along the peripheral wall (61) and discharge on either side of the opening (63).
  8. Straightening apparatus according to any of claims 4 to 7, characterised in that the steaming chamber (60) comprises, at the edge of the opening (63), two end walls (67) which project towards the interior of the steaming chamber (60).
  9. Straightening apparatus according to any of claims 1 to 8, characterised in that the steaming chamber (60) projects in the middle of an enclosure of the heating body (6), the enclosure defining a distribution circuit around the steaming chamber (60).
  10. Straightening apparatus according to claim 9, characterised in that the treatment surface (30A) is borne by an end plate (30) arranged at a longitudinal end of the head (3) and in that the heating body (6) comprises a front face which comes into contact with the end plate (30), the front face comprising an aperture (80) bringing the steam outlet hole of the treatment surface (30A) into communication with the enclosure of the heating body (6).
  11. Straightening apparatus according to any of claims 1 to 10, characterised in that the two nozzles (50) inject liquid onto two separate steaming areas (60A, 60B) of the bottom wall (64) of the steaming chamber (60).
  12. Straightening apparatus according to any of claims 1 to 11, characterised in that the two nozzles (50) are arranged symmetrically on either side of a median plane P perpendicular to the front face and to the bottom wall (64) of the steaming chamber (60).
  13. Straightening apparatus according to claim 12, characterised in that the steaming chamber (60) as a whole is symmetrical with respect to the plane P.
  14. Straightening apparatus according to any of claims 1 to 13, characterised in that it comprises a portable housing comprising the head (3), the handle (2) and a liquid reservoir (10), the steaming chamber (60) being supplied with liquid from the reservoir (10) by means of a pump (5), which is advantageously electric, integrated into the housing.
EP17822376.4A 2016-12-13 2017-12-07 Steam ironing apparatus Active EP3555359B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1662358A FR3060027B1 (en) 2016-12-13 2016-12-13 STEAM DEFROSTING APPARATUS
PCT/FR2017/053428 WO2018109325A1 (en) 2016-12-13 2017-12-07 Steam ironing apparatus

Publications (2)

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EP3555359A1 EP3555359A1 (en) 2019-10-23
EP3555359B1 true EP3555359B1 (en) 2022-08-10

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EP17822376.4A Active EP3555359B1 (en) 2016-12-13 2017-12-07 Steam ironing apparatus

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US (1) US10604888B2 (en)
EP (1) EP3555359B1 (en)
JP (1) JP6827543B2 (en)
CN (3) CN108611836B (en)
FR (1) FR3060027B1 (en)
WO (1) WO2018109325A1 (en)

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CN113818224A (en) 2021-12-21
FR3060027B1 (en) 2018-11-23
WO2018109325A1 (en) 2018-06-21
US20190316289A1 (en) 2019-10-17
CN113818224B (en) 2023-11-24
CN108611836B (en) 2021-09-28
EP3555359A1 (en) 2019-10-23
FR3060027A1 (en) 2018-06-15
CN208266547U (en) 2018-12-21
CN108611836A (en) 2018-10-02
US10604888B2 (en) 2020-03-31
JP6827543B2 (en) 2021-02-10
JP2020500666A (en) 2020-01-16

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