EP0287976B1 - Dispositif d'épilation - Google Patents

Dispositif d'épilation Download PDF

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Publication number
EP0287976B1
EP0287976B1 EP88106086A EP88106086A EP0287976B1 EP 0287976 B1 EP0287976 B1 EP 0287976B1 EP 88106086 A EP88106086 A EP 88106086A EP 88106086 A EP88106086 A EP 88106086A EP 0287976 B1 EP0287976 B1 EP 0287976B1
Authority
EP
European Patent Office
Prior art keywords
tweezer
carriage
blades
epilating appliance
sliding block
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.)
Revoked
Application number
EP88106086A
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German (de)
English (en)
Other versions
EP0287976A3 (en
EP0287976A2 (fr
Inventor
Karl Erbert
Erwin Roth
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Braun GmbH
Original Assignee
Braun GmbH
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Filing date
Publication date
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Application filed by Braun GmbH filed Critical Braun GmbH
Publication of EP0287976A2 publication Critical patent/EP0287976A2/fr
Publication of EP0287976A3 publication Critical patent/EP0287976A3/de
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Publication of EP0287976B1 publication Critical patent/EP0287976B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D26/00—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers
    • A45D26/0066—Tweezers
    • A45D26/0071—Tweezers the hair being extracted automatically, i.e. without manual traction by the user
    • A45D26/0076—Tweezers the hair being extracted automatically, i.e. without manual traction by the user power-driven

Definitions

  • the invention relates to a hair removal device for grasping and plucking hair from the skin with a housing, a drive device and a pair of tweezers, the clamping heads of which can be driven in an oscillating, expandable and closable manner by means of the drive device, the housing having a feed opening for the hair and a support device for the placement and movement of the housing in a feed direction on the skin.
  • Such a hair removal device is known from US 4,575,902 A.
  • the document discloses a hair removal device with movable plucking organs for removing hair, the plucking organs being driven by an electric motor which is arranged inside a housing which can be held by the user in the hand.
  • the plucking organs consist of a row of disks arranged next to one another with little play and form a rotatable cylinder which is arranged behind a slot, a grid or a similar element on the housing.
  • the discs of the cylinder are periodically oscillatingly spread and closed by means of control cams, so that hair coming between the spreading discs is clamped when the discs are closed and plucked out of the skin by the rotating movement of the discs.
  • the clamping heads consist of two jaws, which are arranged opposite each other.
  • the jaws are connected to a drive part, by means of which they can be set in an alternating longitudinal movement along an axis parallel to the edges of the jaws. Guiding means of these jaws ensure that the two jaws are moved apart and pressed together in succession during their longitudinal movement in one and in the other direction.
  • the entire tweezer system with spread clamping heads can be moved in the direction of the support device and thus also on the skin, the hair to be plucked can easily get into the clamping gap of adjacent clamping heads.
  • the clamping heads in the vicinity of the support device they are moved towards each other by the drive device and brought into the clamping position, so that the previously threaded hair is securely clamped.
  • the clamping heads in the clamping position are then moved away from the support device and thus also away from the skin, so that the previously clamped hair can be plucked out of the skin essentially vertically.
  • the clamping heads are moved back into a spread position, so that the previously plucked hair can be ejected from the gap between the clamping heads.
  • a particularly advantageous embodiment of the hair removal device according to the invention is characterized by a first and a second bearing for the tweezer system, of which the first bearing an oscillating longitudinal displacement of the tweezer system in the direction of an axis of symmetry S1-S1 and the second bearing of an oscillating pivoting movement of the tweezers block about an axis of symmetry vertical and parallel to the expansion direction of the slats axis A1-A1.
  • the tweezers block Due to the oscillating longitudinal displacement, the tweezers block is moved towards the surface of the skin when the lamellas are in a spread state and, after the clamping has been brought about, is pulled away from the surface of the skin by pulling out the hair.
  • This movement is superimposed on the oscillating pivoting movement of the tweezer block, the procedure being very particularly expedient in such a way that the tweezer block generates a comb-like movement essentially parallel to the skin surface, at least when its approach to the skin surface has ended when the lamellae are in a spread position, so that these frequently occur very tangled hair is to a certain extent brushed into the spaces between the lamellae.
  • the desired pulling out of the pinched hair can be brought about in the retracting movement of the tweezer block.
  • the hair is drawn between the lamellae by the relative movement of the hair removal device still supported against the skin in the feed direction. In operation, the hair removal device is guided over the skin surface to be depilated like a dry shaver.
  • the above three control functions of the drive device alternate the "pulling in - clamping - pulling out - ejecting" processes cyclically.
  • clamping jaws are preferably arranged at their free ends on both sides of the slat block, the opening and closing movement of which can be controlled by a crank mechanism.
  • the clamping jaws are parts of two mirror-symmetrically arranged angle levers, the legs of which are directed towards one another and are connected to a crank rod which runs essentially parallel to the axis of symmetry of the tweezers block and is connected to a driven crank with its end facing away from the angle levers.
  • the tweezer block is expediently guided in a tweezer frame which surrounds the entirety of the lamellae with a play sufficient for their spreading and is pivotably mounted with the lamellae on the axis A1-A1.
  • the tweezers block can then be pivoted either with or without the tweezers frame, but preferably with the tweezers frame, in a tweezers carriage which is arranged on a parallel guide which is stationary relative to the housing.
  • the correlation of the movement of the tweezers slide on the one hand and the clamping jaws for the tweezers block on the other hand can take place in a mechanically defined form by means of a rigid coupling, for example by driving the tweezers slide by means of a cam disk which can be rotated synchronously with the crank of the crank mechanism for the movement of the clamping jaws is.
  • the cam disk and the crank are arranged particularly coaxially on a common drive shaft.
  • mechanical positive control can also be replaced by a play of mass and spring forces, not only reducing the structural outlay, but also the driving forces, since the springs required for such a system act as an energy store the relaxation of the springs restores at least part of the energy applied during the tensioning process recovered.
  • Such a system is characterized according to the further invention in that the tweezers slide in the direction of the support device under the action of at least one spring, by which it is displaceable until a further stop, that the crank rod at the connection point with the angle levers with a sliding block is provided, which engages with a limited stroke in a slide guide, which in turn is attached to the tweezers slide, and that the design of the spring and the path limitation of the sliding block in the slide guide are made such that the opening movement of the clamping lacquers arranged on the angle levers before the stopping of the Tweezer carriage is terminated at the further stop, and that the closing movement of the clamping jaws is initiated after the tweezer block with spread slats has arrived near the support device.
  • the design of the spring and the mass of all the parts moving with the tweezers slide are given in a particularly suitable manner at a given operating frequency so that the sliding block pushes the tweezers slide against the front end of the slide guide when the jaws are open, so that the tweezers block moves in front of the tweezers slide when the jaws are open is initially closed via the angle lever by means of the sliding block after its passage through the front dead center, and that the sliding block on its retraction movement on the rear end of the link guide comes to a standstill due to the reaction force of the clamping jaws relative to the link guide and pulls the tweezers slide away from the support device when the clamping jaws are closed, whereupon the tweezers block is opened again after briefly continuing its retraction movement by means of the sliding block after it has passed through the rear dead center.
  • the movement correlation between the tweezers slide on the one hand and the clamping jaws on the other hand is due to the structural union of the mounting of the angle lever with the tweezers slide described above.
  • the construction instructions described above can be expressed in a simplified manner in such a way that the spring or springs acting on the tweezers slide are so weak that the tweezers slide lags the sliding block and thus the parts driven by the crank mechanism so as to be out of phase. Only in the periods in which the sliding block rests either at one or the other end of the sliding guide does the sliding block and tweezers slide move exactly in the same direction and speed. It then only depends on the so-called "dead gear" of the sliding block in the sliding guide and on the path limitation of the tweezers carriage to what extent the tweezers carriage with the slats and the sliding block so that the crank mechanism can lag for a limited time.
  • the design of the spring or springs already described is essential. Knowing the relationships, however, the determination of the spring characteristic is a measure which is relatively easy to carry out by a person skilled in the art.
  • the characteristics of the leaf springs that are preferably used can be determined solely by the choice of length, curvature and section modulus. However, these possibilities of influence are familiar to the person skilled in the art, so that further explanations can be dispensed with.
  • the tweezer system is advantageously mounted such that it can be tilted about a pivot axis and can be set into a tilting movement by means of the drive device, the tilting movement being able to be initiated when the clamping bodies are spread apart.
  • the movement curve of a clamping head can be controlled by means of the drive device in such a way that the clamping head can be moved approximately on a rectangular path with narrow and long sides, with the movement of the hair and the clamping or tapping out of the hair along the narrow sides Hair and during the movement along the long sides an approach of the spread position.
  • located clamp body to the skin or a path of the clamp body located in the clamping position can be carried out by the skin.
  • FIG. 1 shows a hair removal device 1 which has a housing 2 with a lower housing part 3, a cover 4, a switch 5 and a housing extension 6. On the underside of the lower housing part 3 there is a plug-in device 7, which is shown in FIG. 2 and is used for inserting an electrical lead.
  • the housing attachment 6 has in its front face 8 a feed opening 9 which is filled with a support device 10 which consists of a row arrangement of thin, U-shaped sheet metal strips which leave relatively narrow gaps between them for the introduction of the hair to be removed.
  • the support device 10 is used to place and move the device on the skin surface, as is known from dry shavers.
  • the direction of feed to be used here is indicated by the arrow 11.
  • the gaps within the support device 10 run parallel to this feed direction.
  • On the top of the support device there is a strip-shaped brush which has been left out for the sake of clarity and which serves to straighten the hair and to facilitate insertion into the gaps.
  • FIG. 2 shows a chassis 12 made of plastic, to which the plug device 7 is also molded.
  • An electric motor 13 is structurally connected to the chassis 12, as is known from motor-driven dry shavers. Due to the increased power requirement, a 50 to 100% larger design is recommended.
  • the stator winding of the electric motor 13 is designated 13a.
  • This gearwheel is fastened together with a cam disk 16 and a crank with crank pin 17 on a further axis of rotation.
  • a so-called eccentric can also take the place of the crank pin 17.
  • the axis of rotation runs parallel to the motor axis.
  • crank pin 17 is in turn surrounded by a bearing ring 18 which engages in a slide 19 with the least possible play.
  • This slide is connected to a crank rod 20, the free end of which is connected in a mirror-symmetrical arrangement to two angle levers 21 and 22 which are extended downwards on their lever arms on the other side by clamping jaws 23 and 24.
  • the angle levers 21 and 22 are pivotally mounted on axes 25 and 26, the fastening location of which will be discussed in more detail below. It can be seen that a retraction of the crank rod 20 causes the clamping jaws to be pressed together and an advance of the crank rod 20 causes the clamping jaws 23 and 24 to spread.
  • the chassis 12 has a parallel guide 27 on its upper side, which consists of two metallic, parallel guide pins 27a and 27b.
  • a tweezer slide 28 is guided on these guide pins, on the upper side of which a guide sleeve 29 for the crank rod 20 is firmly attached.
  • a tweezer frame 30 is now pivotally mounted in the tweezers slide 28, the pivot axis 31 running perpendicular to the guide pins 27a and 27b and to the axes 25 and 26. 4 and 5, the pivot axis 31 runs parallel to the plane of the drawing.
  • a tweezer system P here designed as a tweezer block 32, is in turn mounted in the tweezer frame 30 on the same pivot axis 31, which consists of individual lamellae 33 that can be spread and compressed relative to one another. Details of the Tweezer systems are explained in more detail with reference to Figure 6.
  • the tweezers slide 28 carries at its front end the axes 25 and 26 for the angle levers 21 and 22, so that these axes can be moved together with the tweezers slide.
  • the speed and direction of movement of the tweezers carriage 28 are determined by the angular speed and the course of the cam disk 16, which acts on the tweezers carriage via a roller (not visible here).
  • the correlation of the course of the cam disk 16 and the relative angular position of the crank pin 17 results in a positive coupling between the movement of the tweezers slide 28 and the clamping jaws 23 and 24 in the sense shown above.
  • the free ends of the tweezers block 32 are located between the jaws 23 and 24, as can be seen particularly clearly from FIGS. 2 and 3. It can thereby be achieved that, during the oscillating linear movement of the tweezers slide 28, the tweezers block 32 can perform a spreading or clamping movement in certain areas of this linear movement, the plane in which this clamping or spreading movement takes place runs through all the lamellae of the tweezers block 32 . With reference to FIGS. 4 and 5, the plane of the spreading movement again runs parallel to the plane of the drawing.
  • the tweezer frame is provided on its upper side with swivel levers 33 which, after a partial stroke of the tweezers slide 28, abut a stop 34 which consists of a wire bracket. This forces the tweezer frame 30 and with it the tweezer block 32 to perform an upward tilting movement about the pivot axis 31. It is understood that this tilting movement is carried out before the clamping jaws 23 and 24 press the tweezer block 32 together.
  • FIG. 4 the crank rod 20 leads the movement of the tweezers slide 28 by a small amount, and the clamping jaws 23 and 24 are at such a distance that the individual lamellae of the tweezers block 32 are in the spread position.
  • the tweezers block 32 is in its lowest position with respect to the clamping jaws 23 and 24.
  • the stable position of this lowest position is brought about by a compression spring which - not visible here - is arranged between the tweezers slide 28 and the tweezers frame 30. This spring lies under the guide sleeve 29.
  • the crank pin 17 is already advanced by such an angle of rotation that the crank rod 20 has carried out part of its total retraction movement and the entire relative retraction movement with respect to the tweezers slide 28.
  • the free legs 21a and 22a of the angle levers 21 and 22 were pulled backwards and the clamping jaws 23 and 24 moved toward one another while clamping the lamellae 35.
  • the hairs located between the lamellae are pinched extremely reliably in this way and are reliably torn out during the further retraction movement, which is triggered by the rotation of the cam disk 16 and the crank pin 17 in the same direction.
  • FIG. 6 shows the tweezers block 32 with the fins 35 and their free ends 35a on an enlarged scale and with an excessive spread.
  • the points of action of the jaws 23 and 24 are indicated by the arrows 23 ⁇ and 24 ⁇ .
  • the plane in which the spreading or clamping takes place runs parallel to the plane of the drawing, and lies in this plane also the pivot axis 31, defined by the geometric axis A1-A1.
  • the tweezer frame 30, which is also mounted on the pivot axis 31, has also been omitted for the sake of simplicity.
  • the individual lamellae 35 have an upright cross section with flat sides 35b and 35c, which lie opposite one another.
  • the two outer slats are extended at their rear ends by extensions 35d and 35e, in which a tension spring 36 is suspended to support the expansion effect.
  • the entire arrangement is mirror-symmetrical to an axis of symmetry S1-S1, which runs through the middle of the tweezers block and to which the direction of movement of the tweezers slide 28 runs parallel.
  • the number and dimensions of the slats 35 are not too critical: 10 to 60 slats with a thickness of 0.2 to 0.5 mm, a height of 3 to 6 mm and a length of 25 to 60 mm can preferably be used .
  • Spring steel can be used as the material, but preferably a highly elastic light metal alloy.
  • FIG. 7 shows a plan view of a lamella 35 in the same viewing direction as in FIG. 6, but on a greatly enlarged scale.
  • a clamping head 35f which is delimited from the remaining part of the lamella 35 by two lateral recesses 35g and 35h. This makes it a very defined one Force attack on the hair to be torn out, and hair already torn out can escape into the two recesses without impairing a subsequent clamping process.
  • a bore 351 for receiving the swivel axis 31. Beyond the bore 351, the lamella 35 is tapered up to its end 35m, which facilitates spreading by means of the tension spring 36.
  • FIG. 8 first shows that there is no mechanically rigid positive control between the controls for the clamping jaws 23 and 24 and those for the tweezers slide 28.
  • the crank rod 20 is connected to the angle levers 21 and 22 without play, in this case, however, via a sliding block 37 which is mounted in a sliding block guide 38 with a dead gear "T". Details can be seen more clearly from FIG. 11, so that reference is first made to this figure.
  • crank rod 20 engages on the link block 37 via a pivot pin 39 which is mounted in the link guide 38 with a dead gear "T".
  • the relative direction of displacement is indicated by the double arrow 40 and runs parallel to the axis of symmetry S1-S1 of the tweezers block (FIG. 6) or parallel to Parallel guide 27, of which only the guide pin 27a is shown in Figure 10.
  • the sliding block guide 38 is rigidly connected to the tweezers slide 28 and engages around the sliding block 37 in the form of a "C", so that it is impossible for the sliding block to move up or down.
  • the link guide 38 has two lateral slots 38a and 38b, through which the free ends of the angle levers 21 and 22 are passed with a corresponding range of motion.
  • the arcuate ends of the angle levers are shown in dashed lines, as are corresponding pocket-shaped recesses 37a and 37b in the sliding block. It follows from this that the angle levers 21 and 22 can perform pivoting movements in the sense of the arcuate double arrows during an oscillating movement in the sense of the double arrow 40 - driven by the crank rod 20.
  • a relative movement with respect to the tweezers slide 28 or the tweezers frame 30 is also possible.
  • the tweezers slide 28 is under the action of two weakly curved leaf-shaped springs 41 which are firmly connected at one end to the tweezers slide 28 and engage at their opposite end in abutments 42 which are designed as cutting edge bearings.
  • Figure 9 shows the springs 41 and 41 ⁇ once in the unhooked state (solid lines) and once in the pretensioned state (dashed lines). As a result, the tweezers slide 28 is biased to the right in relation to FIGS. 8 and 9.
  • the clamping jaws 23 and 24 necessarily exert a corresponding clamping pressure on the tweezer block 32, because a stop prevents the axes 25 and 26 from evading to the left and thereby opening the clamping jaws 23 and 24.
  • the tweezers slide 28 has two stops to its stroke limit, of which the stop limiting the retraction movement lies in the area of the parallel guide 27 and is not visible here, while the stop 43 for limiting the forward movement has the shape of a bracket which interacts with an adjustable counter stop , which is not visible here because it lies under the crank rod 20.
  • the adjustability of the counter stop for the stop 43 is necessary because the maximum approach of the tweezers block to the support device 10 must be adjusted in order to avoid damage.
  • two leaf-shaped return springs 44 are provided, which are fastened at one end to the tweezer slide 28 (via the bow-shaped stop 43) and rest resiliently on the tweezer frame 30 with their other end, so that push it down.
  • a boom 46 is located on the chassis 12, the longitudinal axis of which extends parallel to the direction of movement of the tweezers slide 28.
  • This boom 46 carries a stop 47, which in the present case is formed by a lifting cam 48, which is mounted in the boom 46 so as to be pivotable about an axis 49.
  • the lifting cam 48 is held in the position shown in FIG.
  • a return spring 50 which partly runs parallel to the extension 46, partly runs in an arc around its free end and engages in a groove of the lifting cam 48.
  • the lifting cam 48 is approximately V-shaped and is mounted on the axis 49 near its apex.
  • a projection 51 On the underside of the tweezers frame 30 there is a projection 51, which consists of two eyelets and a cylindrical pin extending between the eyelets. In Figures 9 and 10 only one of these eyelets and the end face of the cylinder pin is shown.
  • the relative position of the lifting cam 48 and the projection 51 is selected such that the projection 51 runs into the recess of the V-shaped lifting cam 48 during its forward movement and thereby pivots into the position as shown in FIG. 10.
  • the lifting cam 48 is pivoted into the position shown in FIG. 10 by tensioning the return spring 50, the projection 51 and thus the tweezer frame 30 being pivoted about the pivot axis 31, the free ends of the fins 35 being moved by several millimeters, for example by 4 up to 5 mm.
  • crank pin 17 lifts the front end 37c of the sliding block 37 from the stop 38c of the sliding block guide 38, so that the dead gear "T" is restored.
  • This process is not only due to the inertia of all the components connected to the tweezers slide 28, but also to the tension of the springs 41.
  • the angle levers 21 and 22 are accordingly torn about the axes 25 and 26 accordingly, so that a correspondingly high clamping pressure Jaws 23 and 24 is the result.
  • the tweezer block 32 with the pinched hair is now pulled back into the position shown in FIG. 8, the hair being torn out.
  • the sliding block 37 cannot be moved beyond the position shown in FIG. 8 beyond the open side of the sliding block guide 38.
  • the tweezers block 32, the clamping jaws 23 and 24 and the angle levers 21 and 22 form a stop, at least in effect.
  • the tweezers slide 28 is inevitably taken along by the sliding block 37 because any further relative movement between the sliding block 37 and the sliding block guide 38 is prevented by the reaction forces of the tweezer block 32 acting on the angle levers 21 and 22.
  • an extraordinarily effective clamping of the lamellae is achieved with the tweezer block during the retraction movement of the tweezers slide. Due to the wide mass and spring forces described above, this state is not only reached in a position according to FIG. 8, but also already in a position in which the tweezers block 32 is still in the immediate vicinity of the support device 10.
  • FIG. 12 shows, in a side view, details of two variants of the support device 10. In both cases, this consists of a congruent arrangement of sheet metal strips which are bent essentially in a U-shape. In the following definition, reference is made to the direction of arrow 11, which indicates the direction of advance.
  • Each individual sheet metal strip consists of a rear leg 10a and a front leg 10b and a yoke 10c connecting these two legs. At their free ends, the legs 10a and 10b are firmly connected to one another in order to maintain defined gaps for the insertion of the hair and are inserted in their entirety into the housing attachment 6 (FIG. 1).
  • the tweezer block 32 also executes its movements described above between the legs 10a and 10b.
  • the yoke 10c is extended in the feed direction beyond the straight extension (dash-dotted lines) of the front leg 10b to a reversal point 10d from which the metal strips are returned to the front leg 10b at an acute angle to the yoke.
  • the dash-dotted lines indicate the course of the leg 10b, as it is given in the embodiment of Figure 1.
  • the approximately triangular course of the projection in the area of the reversal point 10d can be made much more acute than this is shown in Figure 12.
  • FIG 13 shows, on an enlarged scale, further details of the tweezer frame 30: from a front frame part 30a, which encloses a cuboid cavity 30b, two parallel rockers 30c protrude inward, which have bores 30d in their free ends, the axes of which align with the axis A1-A1 coincide in Figure 6, ie
  • the tweezer frame 30 is mounted on the pivot axis 31 by means of the bores 30d and thus carries out the same pivoting movements as the tweezer block 32. This tweezer block protrudes forward from the frame part 30a, as is shown in part of the other figures.
  • tweezers slide 28 essential parts of the tweezers slide 28 are two parallel guide tubes 28a and 28b which can be moved on the guide pins 27a and 27b.
  • the guide tubes 28a and 28b are rigidly connected to one another by two cross members 28c and 28d. In which 8, the rear crossmember 28d is replaced by the bow-shaped stop 43.
  • the guide tubes 28a and 28b carry the two axes 25 and 26 with the angle levers 21 and 22 at their front ends.
  • a tweezer system P is shown, which is formed from only two clamping heads K1 and K2, of which the lower clamping head K1 in the drawing is firmly connected to a carriage S, while the upper clamping head K2 in the drawing by two pivot bearings 52 and 53 is pivotally attached to the carriage S.
  • the mutually facing inner surfaces of the clamping heads K1 and K2 are provided with a fine rib-shaped profile 54, which form the two boundary walls of a clamping gap KS. These walls form a narrow rectangle, the longest axis of which runs perpendicular to the direction of oscillation of the carriage S, which is indicated by the double arrow 55.
  • the chassis 12 is also provided here with two guide pins 27a and 27b which, together with guide sleeves of the carriage S, which are not described in more detail, form a parallel guide 27.
  • the tweezers system P can be withdrawn from this outer end position by means of a crank rod 57, the end of which is not shown and is connected to a crank mechanism. As a result, the crank rod 57 executes superimposed pivoting movements in the direction of the double arrow 58.
  • the crank rod 57 is connected via a joint 59 to a tension and compression member 60, which is connected via two brackets 61 to two levers 62, which are rigidly attached to the clamping head K2.
  • the tabs 61 can only perform a limited pivoting movement between the levers 62.
  • the lower pivot pin 63, on which the pulling and pushing member 60 engages, lies below a pivot axis defined by the swivel bearings 52 and 53, so that a pull on the pulling and pushing member 60 narrows or closes the clamping gap KS with firm clamping of hair.
  • This side guide can consist, for example, of a fork-shaped rocker which prevents transverse deflection of the tension and compression member 60.
  • the force with which the tweezer system P is closed depends on the preload of the leaf springs 41, but not least on the inertial forces which exert a reaction force on the tension and compression member 60. In any case, however, the clamping gap KS is closed first and then the carriage S with the clamping heads K1 and K2 and pinched hair moves to the right, the hair is reliably pulled out.
  • FIGS. 15 and 16 show a fourth exemplary embodiment of a tweezer system P, which in this case, however, has a plurality of clamping gaps lying next to one another, and this is also the case with the subject of FIG. 6.
  • the tweezers system P has a row arrangement R of alternately arranged lamella pairs L1 / L2.
  • Each pair of lamellae is pivotally mounted between its ends on a respective hinge pin G, which is mounted in a carriage S, which is displaceably displaceable in the direction of the feed opening (not shown here), of which only a frame part is shown here.
  • the on the The ends of the lamellae aligned with the feed opening are designed as clamping heads K1 and K2, while the opposite ends of the lamellae have control surfaces F1 and F2 which are arranged in pairs and which can be expanded by a control body C.
  • the control bodies C are also provided in a row arrangement and fastened to a cross strut 64, which in turn is connected via a tension and compression member 65 to a drive device, not shown.
  • the lamella pairs L1 / L2 are supported by a pressure roller 66 on the respectively adjacent lamella pair. While the hinge pins G are firmly connected to the slide S, the pressure rollers 66 can execute a small relative movement, predetermined by the lever ratios, transversely to a plane through the axes of all the hinge pins G. It is of course also possible to firmly connect the pressure rollers 66 to the carriage S, but then the hinge pins G must be able to perform the required relative movement.
  • clamping heads K1 and K2 are first brought up to the surface of the skin to take up the hair in a spread state. Subsequently, the clamping heads near the surface of the skin are moved into the clamping position by pinching the hair. This end position is shown in Figure 15. Immediately again, in the closed state, the clamping heads are pulled away from the skin surface into a retracted position, pulling the hair out, and finally the clamping heads in the area of the retracted position are thrown back into the spread position, with the hair being ejected emotional.
  • This movement mechanism takes place through targeted relative movements of the carriage S on the one hand and the tension and compression members 60 and 65 on the other hand.
  • FIG 16 finally shows a single lamella L2.
  • the clamping head K2 has a bevel 67 at its front end (based on the movement of the dehairing device in operation) which explains the insertion of the hair to be torn out.
  • the clamping head K2 is also provided with a profiling 54, and above this profiling there is a recess 68 which facilitates the ejection of the hair and ensures that the closing movement of the clamping gap KS is not hindered by hair accumulations.

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  • Surgical Instruments (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Physical Water Treatments (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Claims (21)

  1. Dispositif d'épilation pour saisir et arracher des poils de la peau et comprenant un boîtier (2), un mécanisme d'entraînement (13) et un système de pincettes (P), dont les têtes de serrage (K1, K2, 35f) peuvent être entraînées de manière a s'écarter et à se fermer en oscillant au moyen du mécanisme d'entraînement (13), le boîtier (2) présentant un orifice de rentrage (9) pour les poils et un dispositif d'appui (10) pour poser et mouvoir le boitier (2) vers l'avant sur la peau, caractérisé en ce que le système de pincettes (P) peut être mû de manière oscillante par le mécanisme d'entraînement (13) vers le dispositif d'appui (10) et éloigné du mécanisme d'appui (10) et en ce que les têtes de serrage (K1, K2, 35f) peuvent être fermées à proximité du dispositif d'appui (10) et écartées à distance du dispositif d'appui (10).
  2. Dispositif d'épilation selon la revendication 1, caractérisé en ce qu'avec un dispositif d'épilation posé sur la peau, les têtes de serrage (K1, K2, 35f) peuvent être commandées périodiquement, de manière mobile, comme suit au moyen du mécanisme d'entraînement (13):
    a) les têtes de serrage (K1, K2, 35f) peuvent être approchées, à l'état écarté, de la surface de la peau pour saisir les poils,
    b) les têtes de serrage (K1, K2, 35f) peuvent être mues à proximité de la surface de la peau pendant le pinçage des poils en position de serrage,
    c) les têtes de serrage (K1, K2, 35f) peuvent être tirées à l'état fermé en position de retrait pendant l'arrachage des poils de la surface de la peau, et
    d) les têtes de serrage (K1, K2, 35f) peuvent être à nouveau amenées en position d'écartement dans la zone de la position de retrait pendant l'évacuation des poils.
  3. Dispositif d'épilation selon la revendication 1, caractérisé en ce que le système de pincettes (P) est formé d'un bloc de pincettes (32) qui est constitué de lamelles (35) essentiellement parallèles, pouvant se tendre les unes contre les autres et face à face le long de leur côté plat (35b, 35c), logées à une de leurs extrémités et pouvant être écartées de manière oscillante à leur autre extrémité libre (35a).
  4. Dispositif d'épilation selon la revendication 3, caractérisé en ce que le bloc de pincettes (32) est orienté avec son axe de symétrie S1-S1 et les extrémités libres (35a) des lamelles (35) vers l'orifice (9) de rentrage.
  5. Dispositif d'épilation selon la revendication 1, caractérisé en ce que les têtes de serrage (K1, K2) sont disposées aux extrémités d'un chariot (S) pouvant être déplacé entre une fin de course intérieure et une fin de course extérieure, en ce qu'au moins une des têtes de serrage (K1) au moins est montée sur le chariot de manière pivotante, en ce que le chariot est chargé par un ressort dans la direction de la fin de course extérieure et en ce que le mécanisme d'entraînement (13) s'engrène par traction et pression au moins sur ladite une tête de serrage (K2) pivotante de telle manière que les têtes de serrage peuvent être fermées lors d'une traction dans le sens opposé à celui de la force du ressort et peuvent être amenées à l'état fermé avec le chariot en fin de course intérieure de celui-ci, et peuvent toutefois être amenées en position d'écartement par une poussée au-delà de la fin de course extérieure du chariot.
  6. Dispositif d'épilation selon la revendication 1, caractérisé en ce que le système de pincettes (P) est formé par un alignement (R) de paires de lamelles (L1/L2) disposées en alternance, en ce que chaque paire de lamelles pouvant pivoter entre ses extrémités par rapport l'une à l'autre s'appuie respectivement sur un axe d'articulation (G), qui est placé dans chariot (S) pouvant coulisser dans le sens de l'orifice de rentrage (9), en ce que les extrémités des lamelles (L1 et L2) orientées vers l'orifice de rentrage (9) sont conformées comme des têtes de serrage (K1, K2) et en ce que les extrémités opposées des lamelles présentent des gouvernes (F1 et F2) disposées par paire qui peuvent être écartées respectivement par un corps de commande (C) qui est connecté au mécanisme (13) d'entraînement.
  7. Dispositif d'épilation selon la revendication 3, caractérisé par un premier (27) et un second logement de palier (31) pour le bloc de pincettes (32), dont le premier logement de palier (27) permet un déplacement longitudinal oscillant du bloc de pincettes dans le sens de son axe de symétrie S1-S1 et le deuxième logement de palier (31) permet un mouvement pivotant oscillant du bloc de pincettes autour d'un axe (A1-A1) perpendiculaire à l'axe de symétrie et parallèle au sens d'écartement des lamelles (35).
  8. Dispositif d'épilation selon la revendication 3 ou 6, caractérisé par un mécanisme (13) d'entraînement ayant au moins trois fonctions de commande pour
    - l'écartement et le serrage oscillants des lamelles (35; L1, L2),
    - le déplacement longitudinal oscillant des lamelles et
    - le mouvement pivotant oscillant des lamelles et avec une corrélation telle des fonctions de commande que les lamelles (35; L1, L2) peuvent être écartées au plus tard lors de leur approche de la surface de la peau et être tournées en position écartée avec leurs extrémités libres (35a) parallèlement au sens de d'avancement et à la surface de la peau, que les lamelles peuvent être mises en position de serrage au plus tard à la fin de ce mouvement pivotant et être retirées dans cette position de la surface de la peau et que les lamelles (35) peuvent être à nouveau mise en position d'écartement au plus tard à la fin de leur mouvement de retrait et au plus tard à la fin de ce mouvement pivotant.
  9. Dispositif d'épilation selon la revendication 3, caractérisé en ce que des mâchoires de serrage (23, 24) dont le mouvement d'ouverture et de fermeture peut être commandé par un mécanisme à bielle-manivelle (17, 20), sont disposées, pour la fonction du mouvement d'écartement et de serrage des lamelles (35), aux extrémités libres de celles-ci des deux côtés du bloc de lamelles (32).
  10. Dispositif d'épilation selon la revendication 9, caractérisé en ce que les mâchoires de serrage (23, 24) font partie de deux leviers coudés (21, 22) disposés de manière symétrico-orthogonale dont les branches (21a, 22a) orientées l'une vers l'autre sont reliées par une bielle (20) qui s'étend essentiellement en parallèle avec l'axe de symétrie S1-S1 du bloc de pincettes (32) et qui est reliée à son extrémité opposée aux leviers coudés (21, 22) par une manivelle entraînée (17).
  11. Dispositif d'épilation selon la revendication 7, caractérisé en ce que le bloc de pincettes (32) est introduit dans un cadre de pincettes (30) qui entoure la totalité des lamelles (35) en laissant une marge de manoeuvre suffisante pour leur écartement et qui est placé avec les lamelles sur l'axe (A1-A1) de manière pivotante.
  12. Dispositif d'épilation selon la revendication 7, caractérisé en ce que le bloc de pincettes (32) est placé de manière pivotante dans un chariot de pincettes (28) qui est disposé sur un guide parallèle (27) stationnaire par rapport au boîtier (2).
  13. Dispositif d'épilation selon les revendications 10 et 12, caractérisé en ce que le chariot de pincettes (28) est entraîné par un disque à cames (16) qui peut tourner de manière synchrone avec la manivelle (17) du mécanisme à bielle-manivelle (17, 20).
  14. Dispositif d'épilation selon les revendications 10 et 12, caractérisé en ce que le chariot (28) de pincettes se trouve, dans le sens du dispositif d'appui (10), sous l'influence au moins d'un ressort (41) par lequel il peut être déplacé jusqu'à une butée ultérieure (43), en ce que la bielle (20) est pourvue au point de jonction avec les leviers coudés (21, 22) d'un coulisseau (37) qui a une course limitée dans un guide de coulisse (38), lequel est lui-même fixé au chariot (28) de pincettes, et en ce que la conception du ressort (41) et la limitation de la course du coulisseau (37) dans le guide de coulisse (38) sont réalisés de manière telle que le mouvement de l'ouverture des mâchoires de serrage (23, 24) disposées sur les leviers coudés (21, 22) est terminé avant même l'arrêt du chariot des pincettes à la butée suivante (43) et en ce que le mouvement de fermeture des mâchoires de serrage est amorcé après l'arrivée du bloc (32) de pincettes avec les lamelles (35) écartées à proximité du dispositif d'appui (10).
  15. Dispositif d'épilation selon la revendication 14, caractérisé en ce que la conception du ressort (41) et la masse de toutes les pièces pouvant se mouvoir avec le chariot (28) de pincettes à une fréquence de fonctionnement donnée sont réalisées de telle manière que le coulisseau (37) pousse devant lui le chariot (28) des pincettes aux mâchoires de serrage ouvertes (23, 24) lors du mouvement de déplacement en avant du chariot des pincettes (28) vers l'extrémité avant du guide de coulisse (38), en ce que le bloc de pincettes (32) est fermé dans un premier temps par les leviers coudés (21, 22) au moyen du coulisseau (37) après son passage par le point mort avant et en ce que le coulisseau (37) lors de son mouvement de retrait vers l'extrémité arrière du guide de coulisse est immobilisé par rapport au guide de coulisse (38) par la force de réaction des mâchoires de serrage (23, 24) et que le chariot des pincettes (28) aux mâchoires de serrage fermées (23, 24) s'éloigne du dispositif d'appui (10), après quoi, pendant la brève poursuite de son mouvement de retrait, le bloc de pincettes (32) est à nouveau ouvert par le coulisseau (37) après passage de celui-ci par le point mort arrière.
  16. Dispositif d'épilation selon la revendication 12, caractérisé en ce que le chariot de pincettes (28) présente deux tubes conducteurs (28a, 28b) qui sont guidés de manière mobile sur les goupilles de guidage (27a, 27b) des glissières (27) parallèles, qui portent sur leurs extrémités antérieures les axes (25, 26) avec les leviers coudés (21, 22) et qui sont reliés l'un à l'autre par au moins une traverse (28c, 28d).
  17. Dispositif d'épilation selon la revendication 1, caractérisé en ce que le dispositif d'appui (10) est constitué d'un alignement de fentes parallèles entre des rubans de tôle en forme de U se refermant sur lui-même avec des branches (10a, 10b) et d'un joug reliant les branches.
  18. Dispositif d'épilation selon la revendication 14, caractérisé en ce que le guide de coulisse (38) est constitué d'un logement en forme de C qui est fixé au chariot (28) de pincettes et accueille le coulisseau (37) avec un mouvement relatif, dont le sens s'étend parallèlement au sens de déplacement du chariot (28) de pincettes, en ce que la bielle (20) s'engrène dans le coulisseau (37) et en ce que des évidements (37a, 37b) sont disposés dans le coulisseau (37) pour l'engrenage des extrémités libres des leviers coudés (21, 22) et des fentes (38a, 38b) sont disposées dans le guide de coulisse (38) pour le passage mobile desdites extrémités libres des leviers coudés (21, 22) et en ce qu'entre le coulisseau (37) et le guide de coulisse (38) il y a une course morte T déterminée, limitée par des butées.
  19. Dispositif d'épilation selon la revendication 14, caractérisé en ce que le ressort (41) entre le chariot de pincettes (28) et le châssis (12) est conformé comme une paire de ressorts à lame courbés, laquelle s'appuie sur une paire de butées (42) s'appuyant sur le châssis.
  20. Dispositif d'épilation selon l'une quelconque des revendications précédentes, caractérisé en ce que le système de pincettes est placé de manière à pouvoir tourner autour d'un pivot (30) et peut être déplacé en un mouvement basculant au moyen du mécanisme d'entraînement (13) le mouvement de bascule pouvant être amorcé lorsque les têtes de serrage (K1, K2, 35f) sont écartées.
  21. Dispositif d'épilation selon l'une quelconque des revendications précédentes, caractérisé en ce que la courbe du mouvement d'une tête de serrage (K1, K2, 35f) peut être commandée par le mécanisme d'entraînement de telle manière que la tête de serrage (K1, K2, 35f) peut être mue sensiblement suivant une trajectoire rectangulaire avec de petits et de grands côtés, la rétraction et le serrage des poils ou encore l'évacuation des poils par tapotage étant réalisable pendant le mouvement le long des petits côtés et une approche du corps de serrage (K1, K2, 35f) en position écartée de la peau ou encore un éloignement du corps de serrage (K1, K2, 35f) en position fermée de la peau étant réalisable pendant le mouvement le long des grands côtés.
EP88106086A 1987-04-18 1988-04-16 Dispositif d'épilation Revoked EP0287976B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873713287 DE3713287A1 (de) 1987-04-18 1987-04-18 Enthaarungsvorrichtung
DE3713287 1987-04-18

Publications (3)

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EP0287976A2 EP0287976A2 (fr) 1988-10-26
EP0287976A3 EP0287976A3 (en) 1989-12-27
EP0287976B1 true EP0287976B1 (fr) 1994-08-31

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EP88106086A Revoked EP0287976B1 (fr) 1987-04-18 1988-04-16 Dispositif d'épilation

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EP (1) EP0287976B1 (fr)
AT (1) ATE110540T1 (fr)
DE (2) DE3713287A1 (fr)
ES (1) ES2058166T3 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2643240B1 (fr) * 1989-02-17 1991-05-10 Demeester Jacques Appareil a epiler
FR2646065B1 (fr) * 1989-04-21 1991-06-21 Demeester Jacques Appareil a epiler
BE1004386A3 (nl) * 1990-08-20 1992-11-10 S Mcd Murphy & Partners Ltd Epileerapparaat.
DE3939874A1 (de) * 1989-12-02 1991-06-06 Klaus Dipl Ing Becker Haarentfernungsvorrichtung
FR2663520A1 (fr) * 1990-06-22 1991-12-27 Bois Jean Luc Structure de tete d'appareil a epiler ou a plumer les volailles.
IL96540A0 (en) * 1990-12-04 1991-09-16 Product Dev Z G S Ltd Electric tweezers
DE19521585A1 (de) * 1995-06-14 1996-12-19 Braun Ag Gerät zum Auszupfen von Haaren der menschlichen Haut
IL131536A0 (en) 1999-08-23 2001-01-28 Ultra Cure Ltd Method and apparatus for hair removal
IL132867A0 (en) 1999-11-11 2001-03-19 Ultra Cure Ltd Epilation method and device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2215914A1 (fr) * 1973-02-07 1974-08-30 Warde Jacques
FR2334320A1 (fr) * 1975-12-09 1977-07-08 Daar Yair Dispositif d'epilation
EP0147285A2 (fr) * 1983-12-22 1985-07-03 Braun Aktiengesellschaft Appareil à épiler

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2215914A1 (fr) * 1973-02-07 1974-08-30 Warde Jacques
FR2334320A1 (fr) * 1975-12-09 1977-07-08 Daar Yair Dispositif d'epilation
EP0147285A2 (fr) * 1983-12-22 1985-07-03 Braun Aktiengesellschaft Appareil à épiler

Also Published As

Publication number Publication date
EP0287976A3 (en) 1989-12-27
DE3851252D1 (de) 1994-10-06
ATE110540T1 (de) 1994-09-15
ES2058166T3 (es) 1994-11-01
DE3713287A1 (de) 1988-11-03
EP0287976A2 (fr) 1988-10-26

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