ES2244632T3 - DEVILIZATION APPARATUS WITH STARTER CLAMPS. - Google Patents

Abstract

The invention concerns a depilatory apparatus comprising a housing (1), an electric motor (2) powering a depilatory head including plucking members, each plucking member comprising at least a mobile blade (11) actuated by mechanical means to close and open the plucking members. Said mechanical means comprise at least a flange (40) of the first control means (400), acting as a cam on the second means actuating the mobile part of the depilatory head along a direction substantially parallel to the flanges. The surface of the cams is perpendicular to the flanges (40, 41) and the second actuating means include a crank assembly (15) transforming the displacement parallel to the flanges into a movement of the lips of the mobile blades (11) substantially perpendicular to the flanges.

Description

Apparatus for depilating with starter tweezers.

The present invention relates to an apparatus to epilate with starter tweezers, which can be held in the hand and intended to remove superfluous hairs from the body human.

This type of hair removal device includes, generally, tweezers, in the form of sheets or discs, arranged on a rotating roller, the clamps being closed to close and open periodically so that they tighten the hairs next to the skin to be ripped off by the rotation of the roller and, respectively, to evacuate the plucked hairs.

Such apparatus is described in EP document. 0403315, in the name of the requesting firm. This document describes a depilator with starter pliers carried by a rotating roller dragged by an electric motor. Everything is contained in one housing that forms the manual grip means of the device. Each clamp It is formed by a sheet belonging to a series of sheets in association with a fixed disk belonging to a series of disks. Each blade can pivot around its retained base in a notch of the roller hub. Two bars, which slide parallel to the axis of rotation of the roller and that each one is associated with a series of sheets, include slots, each applied to the edge of a central opening of each sheet of the same series. During the rotation of the roller, the bars actuated in parallel to the axis thereof by a cam against a forwarding spring makes pivot the sheets so that the latter come into contact with the fixed disks. At each turn of the roller, two are observed tightening corresponding to the closure of the two series of tweezers.

Document FR 2,678,822 describes another type of hair removal apparatus, comprising a rotating roller formed by a series of solidarity outer plates with a push button exterior and by a series of opposing mounted inner sheets and solidarity with an internal push button. The push buttons, parallel to the axis of rotation of the roller, they are separated by a calibrated spring, so that they keep the sheets tight. During the rotation of the roller, the inner push button and the external push button temporarily perform simultaneous support on the cams carried by the plates that support the axis of the roller to compress the spring and cause the opening of the tweezers, which allows the introduction of hairs between sheets with a view to its start.

In these two devices, all the clamps of a row are actuated simultaneously when they pass in front of a Housing window open towards the area to be shaved. This implies an important engine power that simultaneously drives the series of tweezers, power that also varies greatly over time, between a maximum value corresponding to the operation of the clamps and a minimum value when the latter are no longer activated. By consequently, such devices have the inconvenience of needing a powerful, expensive and bulky engine, whose duration is reduced to cause of the continuous variation of its power between these two extreme values.

The efforts put into play correspond to the which are necessary for the closure of a whole series of tweezers. These efforts are not balanced on the inside of the roller and it transmitted to the plates and the roller support or the body of the apparatus, which must, at the same time, be resistant and able to withstand elastically career variations, which may be due to wear or blockage of a clamp.

Another drawback of devices of this type, It is due to the fact that such a start causes significant pain for the person experiencing simultaneous hair removal of all the hairs present in the area of skin near the window of hair removal. This is all the more obvious to people who have a strong sensitivity to the start of the hairs and also for People who have a strong hairiness.

In order to alleviate these inconveniences, they have already presented some solutions in the state of the art.

Thus, WO 98/05234 describes a apparatus for depilating with a rotating roller consisting of a stacking parallel discs arranged in juxtaposition and that they carry tightening plates, arranged in pairs to form tweezers angularly displaced relative to each other. Each clamp It comprises its own closing control means. The disks are traversed by push rods of the mobile, parallel blades to the roller shaft. The blades pivot around a support central, when the push rod comes into contact with the protruding surface of a cam carried by one or another plate, what which allows two clamps on the same generatrix of the roller. Due to the angular displacement, in operation, only two clamps are active during the step in front of the window to depilate.

Such a device has, by the way, a start punctual at the time of the passage of the tweezers in front of the hair removal window, but at the expense of a complex construction. Moreover, the device also induces axial stresses. on the roller support plates, which causes a structure heavy

Another device of the same type is presented in the EP 0558438, apparatus for depilating whose head of hair removal is provided with pairs of tweezers that cross periodically an opening of the housing, when said head is dragged in rotation by an electric motor. The head of hair removal comprises six circular tweezers, each having several radial arms, arranged in juxtaposition so that they form three pairs of claws arranged displaced on the epilation head circumference. Each clamp comprises protrusions that come into contact with cams located on the internal walls of the housing. The claws pivot around its fixing point in the center of the head, opening and closing periodically so that only one clamp is closed during the step in front of the housing window.

The effectiveness of this device is quite limited, seen the friction of the cams on the outline of a large wheel that carries the tweezers, and that the width of the hair removal window It is very small. The cams also induce axial stresses of tighten that impact on the housing. In addition, such an apparatus makes use of clamping plates in a complex and therefore difficult to industrialize at a reasonable manufacturing cost.

JP-4005908 describes a hair removal head comprising fixed disks mounted equidistant on a rotating shaft, keeping two discs apart adjacent thanks to sleeves mounted on the rotating shaft. The mobile foils are mounted on said sleeves and are maintained in open position in relation to fixed disks thanks to solidarity springs with the inner face of the mobile blades. Every mobile blade forms a hair removal clip with the neighboring disk, each clamp being closed by a push rod parallel to the axis of the roller and that is its own, going through the fixed disk. He rod rests on the axial protrusion of a cover cam by one of the roller support plates.

The cams induce here also efforts of tighten perpendicular to the plates that impact the housing. In this document, as in the two preceding ones, the stems blade drive through all other discs or tweezers, which makes the pieces that make up the device complex, its drive, as well as mounting all these components between yes.

A simplified solution for this type of apparatus is described in JP-7313243. In this document, the tweezers are constituted by shanks of form cylindrical, split radially and supported along the periphery of a cylinder dragged in rotation. The stems are parallel to the axis of the cylinder. During the rotation of the cylinder, the Tweezers pass successively in front of the hair removal window of the housing, contacting its ends with the cams supported by the side walls of the housing. This produces the axial displacement of its ends and, consequently, the closure of the clamp.

The disadvantages of such an apparatus are mainly related to the shape of the tweezers, which they present in this case an important contact surface with the skin during hair removal, brushing them on the skin, which it can produce irritations and can generate a sensation unpleasant or painful on the skin of the user. Further, these rubs on the skin impose an additional tension to the drive motor of the device.

In all these types of apparatus, the cams covers on the plates print a movement that is of the same order of magnitude as the displacement of the lips of these clamps, even lower, therefore, small in front of the tweezers size. For this, on the one hand, the efforts of tightening or loosening exerted by the cams are important and frequently lead to rapid wear and loss of efficiency, on the other hand, the efforts produced axially by a plate are balanced by the other plate or by an end stop opposite of the roller, which needs a solid structure to join the plates or the cams. Also, it is necessary to regulate perfectly the axial precision of the components of the epilation head and the rigidity of the structure.

On the other hand, US Pat. number 5,254,124 describes a depilator, whose tweezers are formed by claws that are applied on the inside edge of a hollow cylinder under the action of a spring. The end of the cylinder is applied on the skin to be shaved. Each clamp is equipped with a lever drive that is its own. The efforts of a cam on the lever allow the cyclic opening of the clamps by which They introduce the hairs. This effort is directed towards the axis of rotation, so that the cylinder is mechanically balanced and it does not transmit any effort to the structure of the apparatus.

But as the hollow cylinder bothers to introduce the hairs on the small tongs, and the tweezers remain permanently in contact with the skin, the evacuation of the hairs torn inside a cylinder is difficult. Also, the The effectiveness of this device is limited in relation to those in which the clamps are placed in the external generatrices of the epilation head

The objective of the present invention is to remedy the above mentioned drawbacks and propose an apparatus for depilating comprising starter tweezers formed by blades mobile in association or with other mobile sheets, or with sheets fixed, driven by mechanical control means dragged by a electric motor, the device having a good efficiency, a improved duration and a construction that allows tolerances of larger manufacturing.

These objectives are achieved with an apparatus to depilate comprising a housing, an electric motor that puts in movement a hair removal head with starter tweezers, having the moving part of the head a ruled enveloping surface whose rectilinear generatrices are perpendicular to the movement, and being supported by two side plates, moving each clamp along the enveloping surface in a plane perpendicular to the hair removal zone and parallel to the plates, each comprising clamp at least one mobile blade driven by mechanical means to obtain the closing or opening of the clamps, comprising said mechanical means, in at least one plate, first means of command that do the cam function, and on the mobile part of the hair removal head, a few second drive means that they receive the movement due to the cam and transmit it to the plates mobile, because said first means acting on said second means follow a direction substantially parallel to the plates.

By ruled envelope surface, it is understood a surface that surrounds the hair removal head and that is generated by a line that moves in translation or in rotation, or by a combination of the two movements.

On the contrary, in an analogous and evident way, and without out of the scope of the invention, the means that function of cam can be on the moving part of the epilation head and participate in the transfer to the movement clamps, while the plate may be provided with a fixed means that acts on the cam following an essentially parallel direction to the plates, the relative movement obtained being the same and in the same direction.

While known effective devices they are rollers whose clamps are operated by push buttons that they act on the plates and tend to separate them, the means of proposed device do not generate a component of efforts normal to the plates that affects the moving part of the head of hair removal The structure of the device is lightened, not depending on the race of the clamps of the games between the part Mobile and plates. When the efforts are perpendicular to the general movement, the corresponding wear is suppressed, and the assembly accuracy is less critical for a good functioning.

The moving part of the hair removal head it includes tweezers formed by the edges of two sheets, moving on the enveloping surface, also called lips, being mobile at least one in relation to the other. The tweezers are aligned in a known manner on the enveloping surface of the hair removal head, one of whose parts constitutes the active surface applied to the skin to be depilated. This surface envelope is classically a ruled surface whose generatrices are, at the same time, perpendicular to the movement and the side plates. In what follows, lips are called the edges of the sheets that tighten the hairs and are tangent to the wrapping surface of the hair removal head.

Preferably, the second means of drive comprise a motion forwarding that transforms the initial movement substantially parallel to the plates, due to the first means, in a movement of the lips of the sheets mobile sensibly perpendicular to the plates.

This arrangement avoids inducing the efforts that tend to move the moving part of the hair removal head and to separate the plates that can be mechanically requested from the device structure.

Preferably, the control means are constituted by one or some cams in solidarity with the plates sides of the epilation head, the work surface being of these cams perpendicular to the plates.

Being the work surface of the cams perpendicular to the plates, the main efforts exerted on this surface they are parallel to the plates and do not tend to separate them.

Preferably, the movement forwarding is a lever that pivots around an axis.

The use of a lever allows forwarding of the movement. The lip of a moving sheet moves parallel to the skin, and the end of the lever moves substantially in a plane parallel to the plates. The efforts Longitudinal clamps tightening are balanced by the shaft of rotation belonging to the moving part of the head of hair removal. On the other hand, the use of a lever allows amplify the movement of the clamp and reduce efforts on The cam of command. The movements, when amplified, become large compared to the manufacturing tolerances of parts and games, as well as against wear. The reliability of the apparatus.

Preferably, the apparatus comprises so many drive means such as mobile blades there are, to which they are associated respectively, these second means being activated by the same first means of command.

When the mobile blades are operated independently of each other, a locked clamp does not affect the squeeze the other tweezers. The efficiency is increased. The efforts over each drive means are weak, the engine is requested regularly and the duration is increased.

Preferably, each mobile sheet is associated to a lever, which forms a partial set with the latter monobloc that pivots around an axis.

Each sheet is then mobile in oscillation around the axis. The construction is very simple, robust and not it needs more than an easily controllable operating game. In a variant, the end of the lever comprises a wheel to limit friction on the control cam.

In another version, the mobile sheets, whose lips are located on the same surface generatrix hair removal head envelope, are associated with at least one slide subject to the movement forwarding action.

The slide moves perpendicular to the plates and drag the moving blades on a swing around the base of each sheet or in a translation. Motion forwarding it is preferably a lever that transforms this displacement in a parallel movement to the plates acting, for example, on a projection or a sliding gear.

Preferably, the clamps are normally closed under the action of an elastic means, such as a spring, and the mechanical means act to open the clamps.

When the clamps are closed under the action of a spring, the pressure of tightening of the hairs is constant in the time and is well regulated, without adjustments being necessary during assembly or use. By not depending on the career of the sheets or the degree of wear of the mechanical means of opening, reliability is increased. The closing effort of the Tweezers by the spring is determined so as to ensure a tightening optimal that allows you to grip all types of hair well, without cutting it by this, during startup.

When opening the clamps, the mechanical means act against the tightening spring, whose effort is noticeably constant. The opening efforts put into play are, so So much, perfectly controlled.

The springs can be applied directly against the mobile clamp or on a piece of media drive, such as the slide or lever.

Preferably, the clamps are offset from so that from a clamp of a generatrix to that of the next one, the tightening zones are completed at the top of the surface to shave.

Moving the clamping area of the clamps that they are presented successively, a complete sweep of the area to depilate.

Preferably, the clamps are distributed by generatrices different from the mobile part of the hair removal head, two clamps being arranged in each affected generatrix.

Each clamp then has its movement of opening commanded by the cam of the nearest plate. The tweezers they are evenly distributed along the surface contour hair removal head envelope, distributed so equally uniform in time the effort of tightening, hence, a lower engine drag request and lower cost of your electrical power supply.

Preferably, at least two starter clamps they close simultaneously at the time of their passage to the zone to depilate

Preferably, the tweezers for depilating located in the same generatrix, its drive means and its means elastics are mounted on a common support with which they form a unit set.

These unit assemblies are mounted on the periphery of the surrounding surface of the epilation head. This modular conception of the epilation head allows the realization of numerous device variants, changing the number of modules the number of clamps is changed and the hair removal head size. Only one tool of manufacturing to get different versions.

Preferably, the hair removal head is a roller dragged in rotation around its axis.

The hair removal head comes in the form of a roller comprising a hub around which they are arranged the unit assemblies, the hub having an axis supported by the plates.

In another version, the hair removal head is composed of unit assemblies rigidly mounted on juxtaposition, being animated all of an alternative movement that move the clamps on a ruled surface.

The ruled surface can be flat or cylindrical The alternative movement is parallel to said surface.

In another version, the hair removal head is composed of unit assemblies articulated with each other in juxtaposition and forming a chain.

The invention will be better understood in view of the following examples and the accompanying drawings.

Figure 1 is a simplified sectional view. transverse part of a first apparatus according to the invention.

Figure 2 is a simplified sectional view. transverse part of a second apparatus according to the invention.

Figure 3 is a view from one end of the moving part of the epilation head of the apparatus represented in the figure 2.

Figure 4 is a view from one end of the moving part of the hair removal head of a third device according to the invention.

Figure 5 is a partial sectional view cross section of the apparatus of figure 4.

Figure 6 is a perspective view of a hair removal head of a fourth apparatus according to the invention.

Figure 7 is another perspective view of the hair removal head of figure 4.

In a first embodiment of the invention shown in figure 1, the apparatus comprises a housing 1 with a motor 2 that draws the hair removal head through a pinion set 3. An internal structure 4 to the housing 1 supports the motor 2, the pinions 3 and two plates 40, 41, between which displaces the moving part of the hair removal head.

The moving part of the hair removal head is composed of a drive shaft 5 on which a hub is mounted 6 and modules, such as 7, mounted on the periphery of hub 6 following the generatrices parallel to the axis, to form a roller substantially cylindrical axis 5.

Each module comprises a body, such as 9 or 9 ', which carries a series of fixed sheets 10 arranged on the periphery of the roller and associated with a series of mobile sheets 11 for form a series of tweezers to depilate. The mobile sheets are covers by a slide 12 that is pushed back thanks to a spring 13, so that the clamps formed by the sheets 10, 11 They are normally closed. Each module body, such as 9, supports an axis 14 around which a lever 15 oscillates. This lever is attached to the slide 12 by a gear. The extreme 151 free of the lever 15 is oriented so that its movement of oscillation is substantially perpendicular to the movement of the slide 12 and, therefore, of the mobile sheets 11.

The mobile sheets are embedded, by example, by overmolding on the slide 12. In one version different, the plates are articulated at their base on the body 9, and the slider drags them in a swinging motion to separate the outer lips from the tweezers.

In a similar version, the slide 12 does not It comprises more than one movable sheet only.

Advantageously, the first sheet 101 of each module, such as 7, is located at a different distance 17 from the end 16 of the movable part of the head for depilating. Preferably, the sheets of different series are separated following the same step 18. This distance 17 is chosen so that the different series of sheets sweep from tightening areas of width 19 to different and complementary locations on the skin.

A plate 40 carries a cylindrical cam 400 provided with a radial protuberance 401. The bump It corresponds to an area where the clamps must be opened. The ends of the levers 15 circulate in the vicinity of the contour of cam 400, so that they are operated by the bump 401.

In a similar version, the two plates 40, 41 they are provided with a cam, such as 400, and modules 7 are alternatively mounted, so that the levers 15 are affected to the right and then to the left by one or the other of the cams 400.

In another version obtained from the previous one, each one of the two plates 40 and 41 is provided with a cam 400 and each module comprises two slides 12, each attached to a lever. The levers of each module are affected, respectively, by the cams of plates 40 and 41. In this version, a module It comprises two series of one or more tweezers. The module presents then symmetry in relation to an average plane of the head of hair removal.

When the user starts the apparatus, axis 5 is in rotation, dragging modules 7 to length of cam 400. Mobile sheets 11 are normally in tight contact against the fixed sheets 10, which are being made rewind thanks to spring 13. End 151 of lever 15 It is free, but closely follows the surface of cam 400.

When a module arrives at the window of depilation, the bulge 401 of the cam 400 acts on the lever 15, pivoting it around axis 14. Lever 15 then move the slide 12 against the action of the spring 13 which draws the plates 11 in an opening movement of the career tweezers 19. The hairiness can then be introduced between the sheets 10, 11. When the end 151 of the lever 15 is Pound the action of the 401 boss, the tweezers formed by sheets 10, 11 are closed again by tightening the hairs, under the spring action 13. The drag movement of the head of hair removal then starts the hairs.

In these movements, lever 15 transforms the movement of sheets 11 and slide 12 into a perpendicular movement of end 151 in contact with the cam 400. With axis 14 attached to module 7, any effort in the Direction of sheet displacement is not transmitted to the cam nor to the structure of the device. The perpendicular efforts to the surface of cam 400 and substantially parallel to plate 40 they are essentially balanced by axis 5 through the plate 40, which is, therefore, the only piece requested primarily to rule the plates.

On the other hand, the lever 15 allows to amplify the sliding movement of the sheets and decrease the efforts on cam 400. In order to ensure a good closure of the tweezers, there is play between the end 151 of the lever 15 and the cam 400, during this closure. The spring 13 can then exert fully your effort on the tight hairs between the sheets. The friction of lever 15 on cam 400 is reduced to a rubbing on the bump 401.

Reduction of friction, efforts, regulation of your address and poor structure solicitation of the device make the latter a reliable and efficient tool.

In a second preferred embodiment represented in figure 2, the apparatus comprises, as in the preceding embodiment, a housing 1, an engine 2, a set of pinions 3, an internal structure 4 and two plates 40, 41, between the that the mobile part of the hair removal head moves.

The moving part of the hair removal head, also represented in figure 3, it is composed of an axis of drag 5, on which a cube 6 is mounted, and of some modules, such as 7, mounted on the periphery of the hub 6 following the generatrices parallel to the axis to form a roller substantially cylindrical shaft 5.

Each module comprises a body, such as 9, that carries two fixed sheets 10 arranged on the periphery of the roller and associated, respectively, with two mobile sheets 11 to form two hair removal tweezers Each movable sheet is carried by a lever 15 which is pushed back by a spring 13, so that the clamps formed by sheets 10, 11 are normally closed. Each lever 15 oscillates around an axis 14 supported by the module body, such as 9. The free end 151 of the lever 15 is oriented relative to axis 14, so that its movement of swing is substantially perpendicular to the movement of the lip external of the mobile sheet 11.

Each mobile sheet is embedded, for example, by overmolding on its lever 15, with which it forms a monobloc partial set.

Advantageously, the first sheet 10 is located at a different distance 17 on each module 7 from the end 16 of the moving part of the head for hair removal. This distance 17 is choose so that the clamps of the different modules 7 sweep from the width 19 zones to the different locations and Complementary on the skin.

Thus, levers 15 have dimensions different depending on the distance at which a sheet relative to the end 16. Advantageously, it can be determine an optimal relationship between the dimensions of the levers and the angular offset of the modules, so that a maximum number of identical levers, which reduces the costs of manufacturing and facilitates assembly.

Each of the plates 40, 41 carries a cam 400 cylindrical provided with a radial protuberance 401. The bump corresponds to an area where the clamps must be open. The ends 151 of the levers 15 circulate in the around the contour of cam 400 closest to the blade corresponding mobile, so that they are powered by the bump 401.

When the user starts the apparatus, axis 5 is in rotation, dragging modules 7 to length of cam 400. Mobile sheets 11 are normally in tight contact against the fixed sheets 10, which are being made rewind thanks to springs 13, as illustrated in the part Bottom of the epilation head of Figure 2. Ends 151 of levers 15 are free, but closely follow the surface of cams 400.

When a module arrives at the window of depilation, the bulge 401 of the cam 400 acts on the lever 15, swinging it around axis 14, as illustrated at the top of the hair removal head of figure 2. The lever 15 then moves pivoting against the action of spring 13 and drag the sheets 11 in an opening movement of the career tweezers 19. The hairiness can then be introduced between the sheets 10, 11. When the end 151 of the lever 15 is Pound the action of the 401 boss, the tweezers formed by sheets 10, 11 are closed again by tightening the hairs, under the spring action 13. The drag movement of the head of hair removal then starts the hairs.

In these movements, lever 15 transforms the movement of the plates 11 into a movement perpendicular to end 151 in contact with cam 400. Being fixed axis 14 to module 7, any effort in the direction of sheet displacement is not transmitted to the cam or to the device structure. Therefore, the same advantages as with the preceding embodiment.

The recoil in the closed position thanks to a Spring in each clamp allows to regulate well the tightening of the hairs. The use of a drive means to open each clamp Simplify parts and allow manufacturing tolerances more easy to satisfy, not being critical the opening race of the blades to obtain a good tightening of the tweezers.

In a third embodiment of the invention, about modules 7 similar to those of the preceding embodiment are mounted in juxtaposition, as indicated in figure 4, for that the set of the lips of the sheets be on the same active surface S. The set is animated by means motorized, not represented, of an alternative movement following the direction of the arrows f parallel to the surface S active, intended to be applied to the skin. The figure represents a lively substantially active surface S of a movement rectilinear. In a similar version, the surface is cylindrical and is animated by an alternative curvilinear movement in a plane diametral.

Figure 5 shows a partial view of the apparatus in cut by a plane of symmetry of a module. The shell 1 it contains two plates 40, 41 provided with a groove 20 longilinear parallel to the displacement of the modules 7 and that ensures their guidance. The plates carry a cam 400 substantially parallel to the groove 20, but comprising one or more protuberances 401 that is extend parallel to the plates in the areas where the Tweezers must be open.

The cams 400 act on the levers 15 of the same way as in the preceding embodiments. The efforts developed by cams 400 in planes parallel to the plates they are balanced by the efforts exerted by the slots 20, of so that the plates are the only pieces to transmit the main command efforts. Similar advantages are obtained to those of the preceding embodiments.

In a fourth embodiment, the modules are chain mounted, as can be seen in figures 6 and 7. The dragging of the modules is continuous, as if it were a caterpillar, and the operation is similar to that of the realization described above.

These descriptions do not show exhaustive the diversity of possible accomplishments, leaving all within the scope of the invention, as defined by the claims. This diversity is essentially permitted by the relief of the control voltages of the mobile blades.

Claims (15)

1. Apparatus for depilating, comprising a housing (1), an electric motor (2), which sets in motion a hair removal head with starter pliers (10, 11), the moving part of the head having a regulated wrapping surface whose rectilinear generatrices are perpendicular to the movement, and being supported by two lateral plates (40, 41), each clamp moving along the surrounding surface in a plane perpendicular to the depilation zone parallel to the plates (40, 41), comprising each clamp at least one movable sheet (11) driven by mechanical means to obtain the closure or opening of the clamps, said mechanical means, comprising at least one plate (40), first control means (400) that make the cam function, and on the mobile part of the epilation head, a few second drive means (15) that receive the movement due to the cam and transmit it to the mobile blades, characterized in that said first s control means (400) acting on said second actuation means (15) follow a direction substantially parallel to the plates. 2. Apparatus for depilating according to claim 1, characterized in that the second actuating means comprise a movement forwarding (15) that transforms the initial movement substantially parallel to the plates (40, 41), due to the first means (400), in a movement of the lips of the mobile sheets (11) substantially perpendicular to the plates. 3. Apparatus for depilating according to claim 2, characterized in that said control means are constituted by one or some cams (400) in solidarity with the side plates of the epilation head, the surface of these cams being perpendicular to the plates (40, 41 ). 4. Apparatus for depilating according to the preceding claim, characterized in that the movement forwarding is a lever (15) that pivots around an axis (14). 5. Apparatus for depilating according to one of claims 3 to 4, characterized in that it comprises as many actuating means as there are mobile plates (11), to which they are associated respectively, these second means being actuated by the same first control means (400 ). 6. Apparatus for depilating according to the preceding claim, characterized in that each movable sheet (11) is associated with a lever (15) that forms a partial monobloc assembly that pivots around an axis (14). 7. Apparatus for depilating according to one of claims 3 to 5, characterized in that the mobile sheets (11), whose lips are located in the same generatrix of the envelope surface of the epilation head, are associated with at least one slide (12) submitted to the action of the forwarding (15) of movement. 8. Apparatus for depilating according to one of claims 3 to 7, characterized in that the clamps are normally closed under the action of an elastic means, such as a spring (13), and the mechanical means act to open the clamps. 9. Apparatus for depilating according to one of claims 3 to 8, characterized in that the clamps are displaced, so that, from a clamp of one generatrix to that of the next, the clamping zones (19) are completed in the part of above the surface to be shaved. 10. Apparatus for depilating according to the preceding claim, characterized in that the tweezers are distributed by different generatrices of the mobile part of the epilation head, two tweezers are arranged in each affected generatrix. 11. Apparatus for depilating according to the preceding claim, characterized in that the two starter clamps are closed simultaneously at the time of their passage to the area to be depilated. 12. Apparatus for depilating according to one of the preceding claims, characterized in that the tweezers for depilating closed simultaneously at the time of their passage to the area to be depilated, their actuation means and their elastic means are mounted on a common support (9) with which form a unit set (7). 13. Apparatus for depilating according to claim 12, characterized in that the depilation head is a roller driven in rotation about its axis. 14. Apparatus for depilating according to claim 12, characterized in that the depilation head is composed of unit assemblies rigidly mounted in juxtaposition, all of which is animated by an alternative movement that displaces the tweezers on a regulated surface. 15. Apparatus for depilating according to one of claims 3 to 12, characterized in that the depilation head is composed of unit assemblies articulated in juxtaposition and forming a chain.