EP3869993A1 - Hairstyling appliance having a liquid evacuation device - Google Patents

Abstract

The invention relates to a hairstyling appliance having a housing (111) comprising a liquid transporting device and/or a liquid storage device and at least one electrical or electronic component, characterized in that the housing (111) comprises a liquid evacuation device (114) designed to evacuate the liquid out of the housing (111) in the event of a leak of liquid from the liquid transporting device and/or liquid storage device, and in that said evacuation device is designed such that the liquid cannot come into contact with said at least one electrical or electronic component.

Description

 HAIRDRESSING APPARATUS WITH LIQUID DISCHARGE DEVICE

Technical Field The present invention relates to the field of household appliances and more specifically to hairdressing apparatus, and more particularly to hairdressing apparatus equipped with a device for transporting liquid, in particular water, such as for example hairstyle using steam to optimize the shaping of the hair.

 Such a hairdressing appliance comprises a box comprising a liquid transport device and / or a liquid storage device and at least one electrical or electronic component.

State of the art

It is known, for example, from document WO 2004/002262 to use steam to improve the efficiency of hairdressing appliances, and in particular straighteners. For example, as described in this document, the hair styling device is in the form of straightening pliers, one of the arms of which includes a liquid reservoir, a vaporization device and a vapor ejection device. towards the hair. In this example, the liquid is conveyed to the vaporization device by capillary action, using a wick transporting the liquid.

It is also known, in particular from patent EP 2 449 910, to use a peristaltic pump in a hairdressing appliance to transport the liquid from the reservoir. In particular, this document teaches the use of a peristaltic pump to regulate the fluid flow rate in order to supply a means for vaporizing the fluid. Thus, according to the apparatus described in this document, a peristaltic pump makes it possible to transport a fluid, in particular water, so as to produce steam.

Other devices, such as that described by US 4,341,229 A disclose the use of a reservoir inside a housing of a hairdressing appliance in order to be able to produce steam intended for the hair.

These different constructions generally give satisfaction to the users of the devices concerned, in particular with regard to the performance and the hairdressing result obtained.

However, these constructions both present a risk in the event of liquid leakage. Indeed, at least one of the arms comprises the vaporization device as well as one or more liquid transport devices, such as for example pipes, conduits, a wick, or even a pump. In addition, as is the case in the first document mentioned, for example, one of the arms of the device also includes the liquid reservoir. In other words, the hairstyling device has inside its housing at least one liquid transport device, or even several elements containing liquid. Consequently, there is a significant risk of liquid leakage. For example, the connection between the tank and the pipe connecting it to the spray device may be faulty (poor connection, wear on the connectors, etc.) and leak, the pipe may also disconnect, for example following an overpressure due to scaling of the device, or the pipe itself may be defective (punctured, split, etc.). The reservoir may also itself be defective (punctured, split, etc., for example following an impact) and allow liquid to escape. If the device has a pump, it may also fail and allow liquid to escape. There are therefore several causes that could cause fluid to leak inside one of the arms of the aircraft.

However, the presence of liquid, and in particular water, inside this type of device is not desirable. In fact, these devices are generally electrical devices, at least insofar as they include a heating element for electrically heating a hair shaping surface, or even various electrical and electronic components. Consequently, the presence of liquid inside these devices risks destroying their electrical and / or electronic components and therefore causing a malfunction or even a total breakdown of the hairdressing device. In addition, the risk of electrocution for the user cannot be totally excluded, especially since he holds his devices in his hand and that he manipulates them in the immediate vicinity of his head.

There is therefore a need to further secure this type of device, whether for the components of the device itself or for the user.

Summary of the invention

The present invention aims to overcome the aforementioned drawbacks.

An objective of the invention is to provide a hair styling device which is particularly safe, whether for the electrical and / or electronic components of the device itself or for the user who manipulates the device.

Another objective of the invention is to propose a hairstyling device which is particularly reliable and robust.

Another objective of the invention is to propose a hairstyling device which is particularly simple and inexpensive to manufacture.

Another objective of the invention is to propose a hairstyling device which is particularly efficient. The objectives are achieved using a hairdressing apparatus comprising a housing comprising a liquid transport device and / or a liquid storage device and at least one electrical or electronic component, characterized in that the housing comprises a liquid evacuation device designed to evacuate, outside the case, the liquid in the event of liquid leaking from the liquid transport device and / or the liquid storage device, and in that said device evacuation is arranged so that the liquid cannot come into contact with said at least one electrical or electronic component. According to the invention, the hairdressing apparatus therefore comprises a liquid transport device, that is to say any device making it possible to transport liquid, either by mechanical action, using a pump for example, or by capillary action, to the area of a wick for example, or by gravitational action, for example by simple flow through a pipe or by any other means known to those skilled in the art or by a combination of one or the other of these means. Alternatively or additionally, the device which is the subject of the invention comprises a device for storing liquid, such as for example a tank intended to contain liquid, preferably water. However, one could imagine without departing from the scope of the invention that the reservoir can also store a cosmetic product, possibly diluted in water.

The invention makes it remarkably possible to secure the operation of the device insofar as the designers have provided, during the design of the device, a device for discharging liquid which would be found impromptu or accidentally in the inside the housing, the evacuation of the liquid taking place in a controlled and reflected manner, for example by precisely controlling the trajectory of evacuation of the liquid and / or the precise place where the liquid is evacuated. In other words, it is thus possible, thanks to the invention, to evacuate the liquid which would be impromptu inside the housing before the liquid is in contact with an electrical or electronic component. Consequently, any accidental contact between the liquid and this component is remarkably avoided and, the safety, of the device, but also of the user are greatly improved. Indeed, the electrical or electronic components are not likely to be damaged and the risk of electrocution of the user is considerably reduced, not to say eliminated.

Such a control of the evacuation of the liquid which would be abnormally inside the casing of a hairdressing apparatus constitutes a quite remarkable difference compared to the apparatuses of the prior art in which the liquid were to be evacuated by the one or only exits that it could meet, generally at the interface of several parts, and in particular between the housing and a smoothing plate of the device. However, this is a particularly sensitive area because comprising an electrical power component, the heating element of the smoothing plate, so that the liquid then came into contact with said electrical component.

It would be easy for a person skilled in the art to verify the result of the invention by means of a simple test. It could indeed for example pierce or disconnect (that is to say disconnect) the liquid transport device in order to simulate a leak of liquid inside the case. It would then suffice for a person skilled in the art to manipulate the hairdressing apparatus in different positions, as he would do during normal use. Then, the skilled person could check if the liquid flows well through the evacuation device. A person skilled in the art could also check, for example by dismantling the casing of the device, whether an electrical or electronic component of the device has been touched by the liquid, in other words, whether the liquid has come into contact. said component when handling the device. Such a check is simple since the component in question would, in the event of contact with the liquid, have significant sequelae (burns, corrosion, explosion, etc.). Preferably, the liquid discharge device comprises at least one orifice, and preferably two orifices, passing through the housing. This makes it possible to control, and preferably to increase the discharge rate of the liquid in a particularly reliable and inexpensive manner. The opening can have any shape. However, said at least one orifice is, preferably, a hole whose diameter is between 0.5 mm and 4 mm, preferably between 1 mm and 1.5 mm. Given the plurality of orifices, the discharge section is advantageously between 1 mm ² and 4 mm ² and preferably between 2 mm ² and 2.5 mm ² .

Advantageously, the liquid evacuation device is permanently open with the environment, in this case, the atmosphere. In other words, the liquid evacuation device does not have a plug or any other obstructing or sealing element.

According to a preferred embodiment, the device comprises a first arm and a second arm hinged together by a hinge so as to form a hair shaping clamp. The device then forms a straightening pliers which allows great ease of use and a styling result. optimal.

In a first variant of the previous embodiment, the housing is formed by the first arm. In other words, the device for transporting liquid and / or for storing liquid, but also said at least one electrical or electronic component are integrated in the first arm, which makes it possible to obtain a relatively compact hairdressing device. Generally the first arm is designed to be grasped by the user's hand and easily manipulated by the user near his head.

According to this first variant, advantageously, the first arm comprises a reservoir and a first surface for treating hair by contact, the liquid evacuation device being located between the reservoir and the first treatment surface. Such an arrangement makes it possible to have a particularly compact hairdressing device. In addition, the arrangement of the evacuation device between the reservoir and the first treatment surface makes it possible to preserve the latter from being in contact with the liquid which could accidentally be inside the arm, which prevents the liquid from come in contact with the hair. This is also particularly useful and reassuring in the case where the first treatment surface is a surface heated by an electric heating element (CTP for example). Preferably, the liquid evacuation device is located at a distance between 10 mm and 50 mm from the edge of the first treatment surface, preferably between 20 mm and 30 mm. This allows in particular to maintain a safety distance from the first treatment surface and in particular from its electric heating element. In a second variant of the same embodiment, the housing is located at a distance from the first arm and connected to the first arm by a cord. This configuration makes it possible to propose a larger box, for example for integrating a device for transporting liquid (a pump for example) which is larger, because it is powerful for example, and / or a device for storing liquid of large capacity. In this case, the box is then generally intended to be placed on a work surface, such as a table for example, to remain there. motionless while the first arm is portable and manipulated by the user. According to this variant, the first arm comprises a first surface for treating hair by contact, the housing comprises a reservoir and the device for discharging liquid is located between the reservoir and the treatment surface. As explained above, the evacuation device can then comprise at least one orifice passing through the housing. However, it is also perfectly conceivable that, in an alternative or complementary manner, the arm comprises said orifice or another orifice of another evacuation device. Indeed, according to this variant, liquid is stored or transported in the housing (that is to say in the base) and in the arm. It may therefore be advisable to position a discharge device according to the invention in the housing and another discharge device according to the invention in the arm in order to optimize the safety of the device. Thus, according to this variant, in the event of liquid leaking into the base, the liquid will be discharged in a controlled manner so that the liquid cannot come into contact with an electrical or electronic component of the base, and in the event of leakage in the arm, the liquid will be removed in a controlled manner so that the liquid cannot come into contact with an electrical or electronic component of the arm.

The expression “treatment surface” used previously designates any type of surface, whatever its shape, its dimensions, as long as it comes into contact with the hair at least at one point. Indifferently, the treatment surface can be continuous, for example formed by a single piece, or on the contrary discontinuous, for example formed by a plurality of pieces. The treatment surface can, by way of illustration and without limitation, be:

 - smooth and flat, being for example formed by a smoothing plate,

- smooth and curved, for example by being formed by a mandrel, a roller or a tile,

 - corrugated for example by including a succession of hollows and bumps

 - damaged for example by including pins or teeth,

- etc. According to an advantageous embodiment of the invention, the liquid transport device comprises a peristaltic pump which comprises a pump body defining a chamber in which there is a deformable pipe intended to contain a liquid to be displaced, as well as a device liquid draining device designed to, in the event of a rupture of the deformable pipe of the pump, drain the liquid from the chamber towards the outside of the pump according to a controlled path, and said draining device communicates with said drainage device. Advantageously, the liquid draining device comprises at least one hole which makes it possible to control the flow path of the liquid very economically and safely. By "controlled trajectory" is meant that the place through which the liquid will drain, that is to say flow, is defined in advance, chosen by the designers. In other words, we know precisely where and how the liquid will drain. Advantageously, the diameter of the hole is between 0.5 mm and 4 mm, preferably between 1 mm and 1.5mm. Preferably, the liquid draining device comprises two holes, advantageously arranged one near the other, for example separated by a distance of between 1 mm and 5 mm, which makes it possible to increase the flow rate and therefore the speed drain. The presence of a plurality of holes also makes it possible to guarantee the emptying of the pump even if one of the holes were to be closed. The total evacuation section is thus between 2 mm ² and 2.5 mm ² ,

By “rupture of the deformable pipe” is meant any deterioration which could lead to a loss of tightness of said pipe, that is to say to a leak of the liquid contained in the deformable pipe. For example, this could be caused by an explosion in the pipe, a crack in the pipe, a hole in the pipe, excessive porosity in the pipe, or accidental disconnection or disconnection of the pipe. hose, for example as a result of overpressure due to scaling of the device. By "room" is meant any three-dimensional space intended to accommodate at least one element, in this case the deformable pipe of the pump.

Thus, thanks to this embodiment of the invention, in the event of an impromptu or accidental presence of liquid inside the pump, the liquid is quickly evacuated according to a path controlled in advance by the designers and at a precise location defined in advance, thus avoiding any accidental contact between the liquid and any electrical or electronic component. More precisely, the liquid is first evacuated from the pump at a precise location and chosen using the liquid emptying device, then evacuated from the device using the evacuation device, the latter communicating with the emptying device of the pump. Thus, the emptying and evacuation devices communicate with each other by any sealed means. For example, the pump emptying device can be connected to the device evacuation device by means of a pipe or else the emptying device and the evacuation device can be attached to each other. other, for example one being on top of the other.

Preferably, the liquid draining device is arranged through the pump body.

Advantageously, the peristaltic pump comprises a cover cooperating with the pump body and the liquid draining device can be arranged through the cover. This construction then makes it possible to propose a peristaltic pump, the installation and / or possible maintenance of which are facilitated, thanks to the presence of the cover, while guaranteeing a controlled evacuation of the liquid which could be inside the chamber.

In other words, the draining device can be constituted by any device passing through the pump body, the cover or the pump body and the cover, i.e. any device capable of connect the chamber and the exterior of the pump in a place defined in advance by design.

Preferably, the liquid draining device comprises at least one hole, said at least one orifice, and at least one hole, being arranged opposite one another, that is to say one facing the other. This arrangement makes it possible to have a particularly compact and inexpensive device insofar as the distance between the emptying and evacuating devices is minimized.

Advantageously, the liquid draining device comprises an element sealing disposed between said emptying and evacuation devices, which guarantees the sealing between the pump and the device housing, thus avoiding any risk of accidental contact between the liquid and the electrical component (s) of the device. In other words, according to this arrangement, the liquid which could be inside the pump chamber in the event of rupture of the deformable pipe is directly evacuated outside the casing containing the pump, and this so considered and controlled, in particular by having defined during the design the precise place where the liquid should be evacuated. In addition to improving safety, evacuating the liquid outside the device will alert the user, at least visually, that a malfunction has occurred inside his device. hairstyle (in this case that the deformable hose broke for example). Preferably, the sealing element comprises an O-ring

According to an advantageous embodiment, said peristaltic pump comprises a sealing device designed to contain the liquid inside the chamber in the event of rupture of the deformable pipe. Thus, in the event of a rupture of the deformable pipe, the liquid is contained, that is to say maintained, stored, in the pump chamber and does not spread outside the pump in an uncontrolled manner, but only by the pump draining device. Consequently, a possible rupture of the hose of the peristaltic pump has limited consequences since the liquid remains contained inside the pump and does not spread outside the pump, as would normally be the case for pumps. known from the prior art. The liquid is evacuated only by the emptying device, that is to say at a well-defined location and advantageously according to a controlled trajectory, the location and advantageously the emptying trajectory having been carefully defined in advance by the designers of the pump. In addition, taking into account the sealing device, the emptying device constitutes the only possible passage point for the liquid which could be inside the chamber, the latter being also sealed. Consequently, the evacuation of the liquid only by the drainage device is guaranteed, regardless of the orientation of the pump in space. It is therefore possible to install a pump as defined by the invention in spaces where any presence of liquid is normally to avoid, for example in the immediate vicinity of electrical or electronic components as will be detailed later.

According to a preferred embodiment, the chamber comprises a rotor in contact with the deformable pipe, said rotor is connected to a drive shaft passing through the pump body, and the sealing device comprises a first sealing element which is disposed between the drive shaft and the pump body. Consequently, the liquid, in the event of rupture of the deformable hose, cannot escape through the zone situated between the drive shaft, which is a moving moving part, and the pump body, which is a part fixed. According to this preferred embodiment, the first sealing element comprises a lip seal (s), and preferably a seal with two lips. This type of seal, and in particular the double lip seal, ensures a very good seal between a rotating shaft, in this case the drive shaft, against which the lip (s) of the seal rests and a fixed part, in this case the pump body, in which the seal is held.

According to another preferred embodiment, the peristaltic pump comprises a cover cooperating with the pump body, and the sealing device comprises a second sealing element arranged between the pump body and the cover. This construction then makes it possible to propose a peristaltic pump whose assembly and / or possible maintenance are facilitated, thanks to the presence of the cover, while guaranteeing a seal between the pump body and the cover in the event of rupture of the deformable pipe. Advantageously, the second sealing element comprises a seal of circular section disposed at least partially on the periphery of the pump body and the cover.

It is also conceivable that, instead of passing through the pump body as described above, the drive shaft passes through the cover and that the first sealing element is located between the drive shaft and the cover.

According to another preferred embodiment, the peristaltic pump comprises an inlet connector intended to receive a suction duct of liquid, and an outlet connector intended to receive a liquid delivery conduit, connected to the deformable pipe. The sealing device comprises a third sealing element disposed between the pump body and at least one of the inlet or outlet connectors. Alternatively, the third sealing element is disposed between the cover and at least one of the input or output connectors. Alternatively, the third sealing element is disposed between the pump body, the cover, and at least one of the inlet or outlet connectors. Such a construction ensures sealing between the chamber and the exterior of the pump at the pump connectors, regardless of the orientation of the pump in space. For example the pump can be positioned with at least one of its connectors, or even both, arranged at the bottom, and, even in the event of rupture of the deformable pipe, there will be no leakage of liquid at the connectors. that is to say between the connectors and the pump body or the cover for example.

According to a first variant of the preceding preferred embodiment, the third sealing element comprises a plate, preferably made of silicone, traversed by each of said input and output connectors. Said plate is then placed between the pump body and / or the pump cover and around at least one of the inlet or outlet connectors. Advantageously, the plate comprises two orifices, and preferably two holes, each of the orifices receiving one of the connectors. This construction makes it possible to guarantee the tightness of the chamber including at the level of the connectors, in the case where these are attached parts to the pump (for example are not molded with the pump body or the cover, as it is frequently the case for pumps). In addition, this solution makes it possible to dismantle the connectors without any damage either to the connectors or to the pump itself. The use of a silicone plate is particularly advantageous and inexpensive in the case where the two connectors are located close to each other and on the same plane forming a surface of the pump as will be detailed by the after.

According to a second variant of the preceding preferred embodiment, the third sealing element is disposed between the pump body and / or optionally the cover and each of the input and output connectors, said third sealing element comprising two O-rings. In other words, according to this variant, each connector has its own O-ring disposed between the connector and the pump body and / or the cover so as to seal the chamber at the connectors. This solution is particularly advantageous in the case where the connectors are attached to the pump (for example are not molded with the pump body or the cover) and are separated from each other and / or are not in the same plan. Advantageously, the input and output connectors are arranged in the same plane belonging to one and the same external face of the peristaltic pump. This makes it possible to have a particularly compact pump and the connections of which are assembled on the same face, thus limiting the length of the conduits necessary for the departure and arrival of the pump. Preferably, the input and output connectors each have a bend advantageously of substantially 90 °. Such connectors make it possible to facilitate the integration of the pump by arranging the latter transversely to the suction and discharge pipes, respectively at the inlet and at the outlet of the pump. It is thus possible to limit the size of the pump and liquid conduit assembly. Of course, the embodiments described above are perfectly compatible with each other, and other advantageous embodiments can result from their different combinations. One can in particular envisage a peristaltic pump which would result from the combination of the three embodiments described above. This would then result in a particularly compact peristaltic pump, easy to manufacture and maintain since it is equipped with a cover, inexpensive and completely sealed, whatever its orientation in space, in the event of rupture of its deformable pipe. The sealing device would then include said first, second and third sealing elements described above. Brief description of the figures

The following description of a preferred and nonlimiting embodiment of the hairstyling appliance highlights the characteristics of the present invention. This description is based on figures, among which: - Figure 1 illustrates a hairdressing device as described by the invention according to a perspective view.

- Figure 2 illustrates the apparatus of Figure 1 in another orientation.

- Figure 3 illustrates in perspective the first arm of the device of Figure 1. - Figure 4 is a detailed perspective view of area A of the figure

3

- Figure 5 shows the same detail A as Figure 4 but with some parts that have been hidden to see the internal components of the arm. - Figure 6 is a perspective view of a peristaltic pump as defined by the invention.

- Figure 7 is an exploded view of the components of the pump of Figure 6.

detailed description

As illustrated in FIG. 1, the household appliance 1 as defined by the invention is a hairdressing appliance and more precisely a straightening pliers equipped with a liquid consumption device 4. More precisely, the consumption of liquid 4 comprises a vaporization means 41, in this case a vaporization chamber, and a means 42 for diffusing the vapor thus produced, in the direction of a lock of hair. Way to diffusion 42 can in particular be formed by a series of orifices, as illustrated, or even by a slot or a diffusion groove. Such elements are well known to those skilled in the art, and are for example detailed in patent EP 2 449 909 of the applicant.

The household appliance 1 comprises a first arm 1 1 and a second arm 12 linked together by a hinge 13 disposed substantially at the end of each of said first arms 1 1, and second arm 12. Thus the arms are movable one relative to each other in a rotational movement and more precisely of gripper.

As can be seen in FIG. 3, the first arm 11 includes a first surface for treating hair 12 by contact, in this case a heating plate. The second arm 12 comprises a second hair treatment surface 122 by contact, which can be seen in FIG. 2, complementary to the first treatment surface 1 12. Preferably, the second contact treatment surface 122 is also heating .

In a manner well known as such, the hinge 13 allows the user to open the straightening pliers to introduce a lock of hair between the treatment surfaces 1 12, 122, then to close the clamp on the lock of hair to carry out the shaping, generally a smoothing.

As can be seen in FIG. 2, the household appliance 1 also comprises a liquid storage device, in this case a reservoir 3. Preferably the reservoir is intended for storing water. However, one could imagine without departing from the scope of the invention that the reservoir can also store a cosmetic product, possibly diluted in water.

According to the illustrated invention, the reservoir is integrated into the first arm 11. But it is perfectly possible, and this without departing from the scope of the invention, for the reservoir to be separate from the first arm 11 and from the second arm 12. The reservoir can indeed be located at a distance from the first arms 11, and second arm 12, and be for example in a remote base (that is to say located at a distance from the clamp) connected to one of the arms by a cord capable of transporting the liquid. Such an arrangement is for example described in patent EP 2 449 912 of the applicant.

As can be seen in Figures 3 and 4, the appliance 1 comprises a housing 1 1 1 formed by the first bottom 1 1. However, although this is not illustrated, it is perfectly possible, without departing from the scope of the invention, for the case to be formed by the deported base mentioned previously.

The box 1 1 1 thus forms an envelope, for example made of plastic material, containing at least one electrical or electronic component, such as for example a heating element (PTC for example), an electric motor 5, a temperature sensor, a capacitor , an electronic card, etc. Generally these elements are very sensitive to any contact with a liquid, and in particular water, such contact can cause their damage, even their destruction and even generate a risk of electric shock.

As can be seen in Figure 4, the housing 1 1 1 comprises a liquid discharge device 1 14 designed to discharge, outside the housing 1 1 1, the liquid in the event of liquid leaking from a device liquid transport 32, 6, 33, in this case a peristaltic pump 6 or a conduit 32, 33, and / or liquid storage, in this case a reservoir 3. The discharge device 1 14 is arranged so that the liquid cannot come into contact with the electrical or electronic component. More specifically, the liquid discharge device 1 14 comprises two orifices 1 141 arranged one next to the other. Each of the orifices 1 141 crosses the box 1 1 1, so as to put the inside of the box 1 1 1 into communication with the outside. The fact of using two separate orifices makes it possible to ensure a sufficient discharge flow and to guarantee a minimum flow if one of the orifices 1 141 were to be obstructed. As illustrated in Figure 4, each orifice 1 141 is a hole whose diameter is substantially equal to 1 .2 mm. Thus the possible discharge section is approximately 2.26 mm ² . The holes are separated by about 2.5 mm.

The liquid discharge device 1 14 is located at a distance of approximately 25 mm from the edge of the first treatment surface 1 12 which makes it possible to guarantee a safety distance during the flow of water through the discharge device 1 14 and to prevent the discharged liquid from coming into contact with the first treatment surface 1 12. liquid discharge 1 14 is located opposite the second arm 12 which makes it possible to hide it when the straightening pliers are closed, thus improving the overall aesthetics.

In order to supply the liquid consumption device 4 with liquid, and preferably with water, the household appliance 1 comprises a liquid transport device, in this case a peristaltic pump 6. According to the illustrated invention, the peristaltic pump 6 is integrated in the first arm as can be seen in Figure 5, but it is also possible, without departing from the scope of the invention, that the peristaltic pump 6 be integrated in the remote base mentioned above.

As can be seen in FIGS. 5 and 6, the peristaltic pump 6 notably comprises a pump body 60. An inlet connector 61 is arranged on the pump body 60 in order to connect the peristaltic pump 6 to a conduit. suction 32, itself connected to the reservoir 3. An outlet connector 62 is arranged on the pump body 60 in order to connect the peristaltic pump to the liquid consumption device 4, by means of a discharge conduit 33. More specifically, each of the input 61 and output 62 connectors pass through the pump body 60. Thus, a part of each of the input 61, and output 62 connectors protrudes outside the pump and a part of each of the input 61, and output 62 connectors protrudes inside the pump, that is to say in a chamber 68. The portion of the input 61, and output 62 connectors protrudes outside the pump is then connected resp ectively to the suction duct 32 and to the discharge duct 33, as can be seen in FIG. 5. The part of the inlet 61 and outlet 62 connectors projecting into the chamber 68 is then connected to a deformable pipe 63 .

Advantageously, as can be seen in FIGS. 6 and 7, each of the input 61 and output 62 connectors comprises a bend, preferably oriented at 90 °. Preferably, the elbow is outside the peristaltic pump 6, in contact with the pump body 60. Advantageously, the elbow is rigid as are the connectors, which ensures good resistance and avoids the phenomenon of untimely bending. The input 61 and output 62 connectors can then be positioned on the same face of the pump body 60, even if said face is of limited size. In fact, the input 61 and output 62 connectors can be positioned one beside the other, as illustrated, or even be in contact with each other, which makes it possible to limit the size of the peristaltic pump 6 and to simplify the routing of the suction 32 and discharge 33 conduits. In fact, the inlet 61 and outlet 62 connectors can, thanks to their 90 ° bend, be oriented in diametrically opposite directions , while being next to each other, which makes it possible to have a particularly simple and space-saving circuit of liquid outside the pump. Indeed, the suction duct 32 and the discharge duct 33 are found practically aligned with respect to each other, that is to say in the same plane and practically along the same straight line. In addition each of these conduits enters and leaves the peristaltic pump 6 by the same face of the pump, that is to say by one and the same side. It is thus possible to position the peristaltic pump 6 in a particularly cramped location and difficult to access since it suffices that only one side of the pump is accessible to connect the suction 32 and discharge 33 conduits.

As illustrated in FIG. 6, the pump also comprises a cover 64 cooperating with the pump body 60. More specifically, the cover 64 is mounted on the pump body 60 which makes it possible to have a pump that is easy to assemble. In particular, the assembly of the various internal components such as the components of a rotor 65 for example is facilitated. In addition, the peristaltic pump 6 can be dismantled and reassembled at will, without any deterioration, for example to intervene on the internal components. The peristaltic pump 6 is also connected to an electric motor 5 intended to set in motion the various moving parts of the peristaltic pump 6 and therefore to move the liquid from the reservoir 3 to the liquid consumption device 4. FIG. 7 shows the different components of the peristaltic pump 6. Thus, the pump body 60 forms a chamber 68, that is to say a space, a recess or a housing in which different elements are found. In this case, the chamber 68 is defined by the pump body 60 and is closed by the cover 64. The chamber thus contains a deformable pipe 63, a rotor 65 comprising one or more pressure elements 651 connected to the rotor by a support 653 and one or more springs 652. The deformable pipe 63 is fixed and is connected on the one hand to the input connector 61 and on the other hand to the output connector 62 so as to form a loop. The rotor 65 is located in the center of the loop and is rotated by a drive shaft 51 passing through the pump body 60 and connected to the motor shaft of the electric motor 5. The rotor is guided in rotation by a bearing 645 housed in the cover. During the rotation of the drive shaft, the pressing elements 651, such as rollers for example, then punctually punctually deformable pipe 63, and under the effect of their displacement following the rotation of the rotor 65, this created a phenomenon of aspiration but also a displacement of the liquid which is inside the deformable pipe 63. Thus the liquid is sucked from one side of the pump and discharged from the other. This operation is entirely conventional and characteristic of peristaltic pumps known to those skilled in the art, so that it is not further detailed here. The peristaltic pump 6 and the electric motor are both connected to a fixing plate 52 for example by means of screws 53.

As can be seen in FIG. 7, the peristaltic pump 6 comprises a sealing device 661, 662, 663. The latter constitutes a safety device forming an integral part of the pump described in detail below.

More specifically, the sealing device of the peristaltic pump 6 comprises a first sealing element 661 disposed between the drive shaft 51 and the pump body 60 (or, alternatively, the cover 64). More specifically, the first sealing element 661 is a lip seal and preferably a seal with two lips. Such a seal is indeed very effective in ensuring perfect sealing against any liquid between a rotating part, in this case the drive shaft 51, and a fixed part, in the occurrence the pump body 60 (or possibly the cover 64). Thus, thanks to the presence of this first sealing element 661, the liquid which could possibly be inside the chamber 68, for example in the event of rupture of the deformable pipe 63 (or accidental disconnection of the inlet connector and / or outlet), could not escape outside the chamber, that is to say outside the peristaltic pump 6, through the gap, that is to say the functional clearance located between the drive shaft 51 (rotating part) and the pump body 60 (fixed part). The first sealing element 661 guarantees both the correct rotation of the drive shaft 51 relative to the pump body 60 (or possibly to the cover) while guaranteeing sealing between these two parts.

According to the illustrated embodiment, the peristaltic pump 6 also comprises a second sealing element 662 disposed between the pump body 60 and the cover 64, as can be seen in FIG. 7. This second sealing element 662 is advantageously formed by a circular cross-section joint. The second sealing element 662 is then placed around the chamber 68, near the edge, that is to say the periphery of the pump body 60 and the cover. As can be seen in Figure 7, the second sealing element 662 follows the contour of the pump body 60 and the cover 64, and therefore resumes its shape. The second sealing element 662 almost forms a loop on itself, however the latter has two edges, that is to say that it is not closed on itself. Thus, once installed between the pump body and the cover, the second sealing element 662 takes substantially the form of a horseshoe or even the capital Greek letter Omega. The presence of this second sealing element 662 thus makes it possible to ensure sealing between the pump body 60 and the cover 64, while allowing disassembly and reassembly of the cover 64. However, it will be noted that this second element d sealing 662 does not go all around the pump body 60. In other words, the second sealing element is not located on the entire periphery of the chamber 68 but on at least 60% and preferably 80% of the periphery of the chamber 68. The portion of the remaining periphery is then closed by a third sealing element 663, as will be more precisely described below, which makes it possible to ensure a total tightness between the pump body 60 and the cover 64, and therefore a tightness of the chamber 68.

As can be seen in FIG. 7, the peristaltic pump also includes a third sealing element 663. The latter comprises a plate crossed by the inlet 61 and outlet 62 connectors. Preferably, the plate is made of silicone, or in any other material capable of sealing. The plate then comprises two orifices allowing the passage of the input 61 and output 62 connectors. The plate is made of a sufficiently elastic material to ensure sealing around said input 61, and output 62 connectors. The plate is then in contact with the input 61 and output 62 connectors, the pump body 60, but also the cover 64 as can be seen in FIG. 7. This plate makes it remarkable, in association with the second element sealing 662 described above, to complete the sealing of the chamber 68, that is to say to complete the sealing between the cover 64 and the pump body 60, by closing the periphery of the chamber.

Thus, thanks to the combined presence of the previously described sealing elements, namely the first sealing element 661, the second sealing element 662, and the third sealing element 663, the chamber 68 is completely sealed. Consequently, if liquid accidentally (rupture or disconnection of the deformable pipe 63) escapes from the deformable pipe 63 and ends up in the chamber 68, the liquid, generally water, would be trapped in the room 68 without being able to escape from it. This makes it possible to obtain a particularly safe peristaltic pump because it is completely sealed, that is to say which cannot allow any liquid to escape, even if its deformable pipe is broken. It is then possible to use the peristaltic pump of the invention in locations where the presence of liquid is prohibited, such as for example in the immediate vicinity of electrical or electronic components.

However, the invention as illustrated includes another safety device, which may moreover constitute an invention as such. Indeed, the pump illustrated in FIGS. 6 and 7 comprises a drainage device 67 designed to, in the event of the deformable pipe 63 of the peristaltic pump 6 breaking, drain the liquid from the chamber 68 towards the outside of the peristaltic pump 6 along a trajectory controlled. This safety device is particularly effective when associated with a household appliance 1 which includes a device for discharging liquid 14, as detailed below.

As can be seen in FIGS. 5 to 7, the peristaltic pump 6 comprises two holes 671 which then form a drainage device 67 bringing the chamber 68 into contact with the exterior of the pump at a precise location, judiciously selected by the designers. Each of the holes has a diameter of approximately 1.2 mm, which corresponds to a discharge section of 2.26 mm ² . The holes are spaced 2.5 mm apart. Thus, when liquid is accidentally found (for the reasons mentioned above) in chamber 68, it is possible to control the flow path of the liquid in a precise place, reflected and selected in advance by the designers. For example, it is then possible to move the liquid, during its flow, away from any electrical or electronic component, thanks to the location of the drainage device.

By combining the emptying device 67 with the sealing elements 661, 662, 663 defined above, as illustrated, the controlled emptying of the chamber 68, after a rupture of the deformable pipe 63, only by the emptying device 67, is guaranteed regardless of the orientation of the pump in space. Indeed, if the pump is oriented in accordance with Figure 6, then the liquid will naturally, by gravity, flow through the drain device 67 which is then located at a low point of the pump body. The presence of the first sealing element 661 and the third sealing element 663 is, in this case, not necessary for proper flow only by the draining device since these elements are then located above the draining device 67 On the other hand, if the pump is in another orientation, for example with the inlet 61 and outlet 62 connectors at the bottom, the drain device 67 is then found at a high point of the pump. In the absence of a third sealing element 663, the liquid could then flow through the gap between the pump body 60 and the inlet 61 and outlet 62 connectors. In the absence of a second sealing element 662, the liquid could also escape through the gap between the drive shaft 51 and the pump body 60, even before reaching the drain device 67. The flow of liquid would then be uncontrolled, as is the case with the pumps of the art anterior in the event of a break in the deformable pipe. Thanks to the sealing elements 661, 662, 663, previously described, the water cannot flow through these interstices and is therefore forced to flow through the drain device 67 and only through the drain device 67. in addition, the presence of said sealing elements 661, 662, 663 makes it possible to avoid any flow of undesired liquid, that is to say elsewhere than through the draining device, if the latter were to become blocked or fail to ensure sufficient flow to empty the chamber fairly quickly.

According to the embodiment of the invention illustrated, the emptying device 67 of the peristaltic pump 6 communicates with the evacuation device 1 14 from the housing 1 1 1. In this case, as can be seen in FIGS. 4 and 5, the emptying device 67 is located opposite the evacuation device 1 14. In other words, the emptying device 67 is located opposite vis-à-vis the evacuation device 1 14. More specifically, the emptying device 67 has two holes 671, the evacuation device 1 14 also has two orifices 1 141, each of the holes 671 belonging to the emptying device 67 being disposed opposite, that is to say vis-à-vis, an orifice 1 141 of the discharge device 1 14.

Advantageously and remarkably, the discharge section of the drain device 67 and that of the discharge device 1 14 are substantially identical and of the order of 2.26 mm ² which guarantees the total flow of the liquid which could be in room 68 without the funnel phenomenon.

The emptying devices 67 and evacuation 1 14 are then separated by a sealing element 664 ensuring the sealing, in this case an O-ring, between the emptying device and the evacuation device 1 14. The sealing element 664 is held in a housing around the emptying device 67 and is then in contact with the housing 1 1 1 and the peristaltic pump 6, and in particular of the pump body 60. Thanks to this embodiment of the invention, in the event of rupture of the deformable pipe 63 of the peristaltic pump 6 of the household appliance 1, the liquid would then be discharged in a controlled manner, defined by design , that is to say in a reflective manner, only by the evacuation device 114, and via the emptying device 67 of the peristaltic pump 6, so that the liquid cannot come into contact with any electrical component or electronics located inside the housing 111. In other words the interior of the housing 111 is protected from any possible liquid, even in the event of a failure within the peristaltic pump 6, which considerably improves safety of the household appliance 1, whether for the appliance itself (its electrical or electronic components) and for the user (risk of electric shock).

Claims

1. Hairdressing appliance (1) comprising a housing (1 1 1) comprising a liquid transport device (32, 6, 33) and / or a liquid storage device (3) and at least one electrical or electronic component, characterized in that the housing (1 1 1) comprises a liquid evacuation device (1 14) designed to evacuate, outside the housing (1 1 1), the liquid in the event of liquid leaking from the liquid transport (32, 6, 33) and / or the liquid storage device (3), and in that said discharge device is arranged so that the liquid cannot come into contact with said at least one electrical or electronic component. 2. Hairdressing device (1) according to the preceding claim characterized in that the evacuation device (1 14) of liquid comprises at least one orifice (1 141), and preferably two orifices, passing through the housing (1 1 1) . 3. Hairdressing apparatus (1) according to the preceding claim characterized in that said at least one orifice (1141) is a hole whose diameter is between 0.5 mm and 4 mm, preferably between 1 mm and 1.5 mm. 4. Hairdressing apparatus (1) according to any one of the preceding claims, characterized in that it comprises a first arm (1 1) and a second arm (12) hinged together by a hinge (13) so as to form hair shaping forceps. 5. Hairdressing device (1) according to the preceding claim characterized in that the housing (1 1 1) is formed by the first arm (1 1). 6. Hairdressing apparatus (1) according to the preceding claim wherein the first arm (1 1) comprises a reservoir (3) and a first treatment surface (1 12) of hair by contact, characterized in that the device liquid discharge (1 14) is located between the reservoir (3) and the first treatment surface (1 12). 7. Hairdressing device (1) according to the preceding claim characterized in that the evacuation device (1 14) of liquid is located at a distance included between 10 mm and 50 mm from the edge of the first treatment surface (1 12), preferably between 20 mm and 30 mm. 8. Hairdressing apparatus (1) according to any one of the preceding claims, characterized in that the liquid transport device comprises a peristaltic pump (6) which comprises a pump body (60) defining a chamber (68) in which there is a deformable pipe (63) intended to contain a liquid to be displaced, as well as a liquid draining device (67) designed to, in the event of a rupture of the deformable pipe (63) of the pump, drain the liquid from the chamber (68) to the outside of the pump according to a controlled path, and in that said drain device (67) communicates with said discharge device (1 14). 9. Hairdressing apparatus (1) according to the preceding claim characterized in that the liquid draining device (67) is arranged through the pump body (60). 10. Hairdressing apparatus (1) according to claim 8 characterized in that the peristaltic pump (6) comprises a cover (64) cooperating with the pump body (60) and in that the liquid draining device (67) is arranged through the cover (64). 1 1. Hairdressing appliance (1) according to any one of claims 8 to 10 attached to claim 2 characterized in that the liquid draining device (67) comprises at least one hole (671), said at least one orifice (1 141), and at least one hole (671), being arranged opposite one another. 12. Hairdressing device (1) according to one of claims 8 to 1 1 characterized in that the liquid draining device (67) comprises a sealing element (664) disposed between said draining and evacuation devices . 13. Hairdressing appliance (1) according to the preceding claim characterized in that the sealing element (664) comprises an O-ring. 14. Hairdressing apparatus (1) according to any one of claims 8 to 13 characterized in that said peristaltic pump (6) comprises a device sealing (661, 662, 663) designed to contain the liquid inside the chamber (68) in the event of rupture of the deformable pipe (63).