EP3125720B1 - Epilateur magnetique - Google Patents

Epilateur magnetique Download PDF

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Publication number
EP3125720B1
EP3125720B1 EP15725708.0A EP15725708A EP3125720B1 EP 3125720 B1 EP3125720 B1 EP 3125720B1 EP 15725708 A EP15725708 A EP 15725708A EP 3125720 B1 EP3125720 B1 EP 3125720B1
Authority
EP
European Patent Office
Prior art keywords
blade
epilating
roller according
head roller
mobile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15725708.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3125720A1 (fr
Inventor
Fabien Normand
Franck Mandica
Camille Giraud
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SEB SA
Original Assignee
SEB SA
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Publication date
Application filed by SEB SA filed Critical SEB SA
Publication of EP3125720A1 publication Critical patent/EP3125720A1/fr
Application granted granted Critical
Publication of EP3125720B1 publication Critical patent/EP3125720B1/fr
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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
    • A45D26/0023—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers with rotating clamping elements
    • A45D26/0028—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers with rotating clamping elements with rotating discs or blades

Definitions

  • the present invention relates to the technical field of hair removal apparatus used for hair removal, in particular the field of hair removal apparatus equipped with tear-off pliers.
  • the roll comprises a plurality of rows of peripheral pulling tongs, each clamp being formed of at least one movable blade cooperating alternately with a support surface facing each other to clamp the bristles and then release them.
  • the roll further comprises a tubular cage supporting the pulling tongs, coaxial with a central shaft having at least one groove of a cam forming a guide path for the movable blade during the rotational movement of the cage relative to the central tree.
  • a longitudinal peripheral bar is mounted over the row of pliers and includes a window through which the movable blade. The movable blades are actuated by moving a carriage in the guide path, said carriage having at least two movable blades interconnected in translation.
  • Such an apparatus can actually pull body hair.
  • the device generates a significant noise due to the friction of the mechanical parts during the opening and closing of the clamps.
  • EP1046355 teaches an epilator comprising a series of blades configured to pull the bristles, movable blades being adapted to oscillate relative to fixed blades.
  • the apparatus includes movable permanent magnets for interacting with fixed permanent magnets disposed in the frame.
  • the movable magnets are connected to a single walkman on which are mounted the movable blades, said player being driven in translation by force of repulsion or magnetic attraction for opening and closing the clamps.
  • the object of the present invention is to remedy at least in part the aforementioned drawbacks and to provide a hair removal apparatus having a better efficiency in pulling the hairs.
  • Another object of the invention is an epilation apparatus, all of which have substantially the same effectiveness.
  • Another object of the invention is an epilation apparatus having a faster clip closure.
  • Another object of the invention is an epilation apparatus having fewer mechanical contacts and being quieter.
  • Another object of the invention is an epilation device whose wear and power consumption are reduced.
  • Another object of the invention is a more robust epilation apparatus.
  • Another object of the invention is a more compact hair removal apparatus with low cost.
  • the training by magnetic forces acting at a distance and without contact makes it possible to reduce the number of contacts of the mechanical parts and therefore the training noise. This also makes it possible to increase the rotational speed of the roll for more effective tearing.
  • the implementation of an individual foot for each movable blade which is not rigidly connected to any other foot makes it possible to obtain independent movements of each movable blade so that the clamping force applied by a movable blade does not depend on not or is not disturbed by the clamping force applied by another blade. We are therefore in the case of an "isostatic" assembly.
  • the operating means comprise at least as many actuators as tearing pliers of the same row, each actuator being intended to respectively move a single individual foot on said row of pliers.
  • Each individual foot is thus coupled to an independent training means, which makes it possible to control the strength of pinching the bristles for each blade independently.
  • said actuators are intended to move the movable blade by magnetic forces only during the closing phase of the corresponding clamp. This limits the number of magnetic parts used in the roll and thus reduces the size of the device and its cost.
  • the opening of the clamps can be done mechanically, for example by a cam having a guide path.
  • each actuator comprises a permanent magnet and each individual foot is made of a soft ferromagnetic material. And each individual foot is made of a soft ferromagnetic material or a ferromagnetic type material exerting an attraction force of the permanent magnet type.
  • the permanent magnet forms a magnetic field for moving the individual foot by the attraction force created.
  • the use of a soft ferromagnetic material for the individual foot has the advantage of a small footprint and a reduced cost compared to an alternative construction in which each individual foot comprises a permanent magnet intended to be attracted or repulsed by the body. corresponding actuator. It is also possible to envisage an alternative in which each foot comprises a permanent magnet intended to interact with the corresponding actuator which comprises a piece of a soft ferromagnetic material.
  • the tubular cage comprises means for guiding the mobile blades in translation and each movable blade comprises a working head intended to cooperate with the fixed blade, said individual foot being arranged opposite said working head.
  • Said working head is partly at least formed by a plastic or metal part. It can be slightly inclined relative to the corresponding fixed blade to ensure a line of contact to better grasp the hair. It could also implement movable blades so that they are rotated about an axis, so that the pivoting of such a movable blade causes its contact with the fixed blade.
  • each movable blade comprises between its work head and its individual foot a body which is rigidly connected to a guide carriage by translation which cooperates with said translation guide means.
  • said actuator comprises a safety means arranged between said magnet and said individual foot, said safety means being intended to come into contact with at least partially the individual foot in the closed position.
  • This safety means makes it possible to reduce the uncertainties of dimensions and tolerances of the construction and thus to control the closing stroke of the movable blade, the gap between the magnet and the individual foot and therefore the closing force of the blade. moving blade.
  • the hair removal head roller comprises at least one row of grippers aligned in an axial direction perpendicular to a median plane (M) normal to the axis of rotation of the tubular cage, the movable blades located on the same first side of the median plane (M) moving from their open position to their closed position in the same direction while the movable blades located on the other side of the median plane (M) moving from their open position to their closed position in a direction opposite to that of the movable blades located on the first side of the median plane (M).
  • M median plane
  • the hair removal head roller comprises at least one row of grippers aligned in an axial direction perpendicular to a median plane (M) normal to the axis of rotation of the tubular cage, the movable blades located on the same first side of the median plane (M) moving from their open position to their closed position in the same direction while the movable blades located on the other side of the median plane (M) moving from their open position to their closed position in a direction opposite to that
  • At least one movable blade comprises a working head whose axis of symmetry is offset with respect to the axis of symmetry of the individual foot of said blade. Said movable blade is thus presented in a "folded" shape which makes it possible to shift more easily some blades from one row of pliers to another to better cover an area to be treated with a given roll width.
  • the epilation head roll comprises a plurality of rows of pliers evenly distributed on the roll.
  • Each row may have the same number of clips, ideally six. But each row may also have a different number of clips.
  • each individual foot has substantially a shape of circular sector of angle ( ⁇ ), each row of grippers occupying the same length (L) of the arc corresponding to said angle ( ⁇ ).
  • the individual foot therefore has a form of "pie share" to maximize the magnetic interaction surface in the space available for the rows of pliers.
  • the opening of the clamps is by mechanical actuation on said translation guide means.
  • said translational guiding means comprise stop means for simultaneously moving at least two movable blades during the opening of the clamp.
  • an epilation apparatus comprising a housing designed to be held in the hand and enclosing an electric drive motor, characterized in that it comprises an end piece incorporating a head roll hair removal according to one of the preceding features.
  • said tip is removable and interchangeable with another body care accessory.
  • an electric depilation device comprising a hollow housing consisting of two half-shells 2 and 3 together defining on the one hand a gripping zone and on the other hand a housing for confinement and maintenance of various functional elements constituting the device, such as an electric motor 4 associated with transmission means 5 of the rotational movement of an output gear 6 of the engine 4.
  • the transmission means 5 comprise a gear train with axes parallel to the axis of rotation of the motor.
  • the casing is equipped with a body care tip 10 which is an epilation head 10 which comprises a hollow body 11 delimiting an epilation chamber 12 inside which is disposed a hair removal head roller 1 which is flush with a window 14 formed in the hollow body 11.
  • the hair removal head roller 1 is partially rotatable about an axis ( ⁇ ) and is rotated via the transmission means 5 by the electric motor 4.
  • the hair removal head roller 1 comprises at its periphery a series of tearing tongs opening and closing as the roll is rotated.
  • the invention relates more particularly to the design of the hair removal head roller 1 also referred to as the roller terminology.
  • the roll 1 comprises a fixed central shaft 20 intended to be rotatably connected to the housing either directly or via a rotatable part allowing adjustment of the angular position of the central shaft 20 relative to to the case.
  • the roller 1 also comprises a tubular cage 21 which carries the clamps 15 and which is rotatable about the central shaft 20 being driven by means of a wheel 22 rotatably connected to the tubular cage 21.
  • the tubular cage 21 comprises six bars 23 which each carry a row of six clamps 15 aligned in a direction D substantially parallel to the axis ( ⁇ ).
  • each peeling pliers is formed of a fixed blade 25 and a movable blade 26.
  • the fixed blades 25 are rigidly connected to the tubular cage 21 to the extent that according to the illustrated example the fixed blades 25 d the same row form an integral part of the corresponding bar 23.
  • Each movable blade 26 is capable of moving between a closed position in which the movable blade 26 is in contact with the fixed blade 25 in order to grasp hairs and an open position in which the movable blade 26 is moved away from the fixed blade 25 in order to to release the hairs removed.
  • the roller 1 comprises operating means whose embodiment will appear thereafter.
  • Each movable blade 26 comprises a working head 30 which is intended to cooperate with the corresponding fixed blade 25.
  • Each movable blade 26 also comprises, as shown by the figures 4 and 5 , a guide carriage 31 which, according to the example shown, is rigidly connected by a tight fitting to the constituent blank of the working head 30, when it is a metal part, but which could also be overmolded.
  • the guide carriage 31 thus forms the body of the movable blade 26 and is rigidly connected to the working head 30.
  • the roller 1 comprises translational guiding means 32 presented in the form of at least one guide rod in translation 32 on which are mounted said guide carriages 31.
  • the guide carriage 31 cooperates with at least one and, according to the illustrated example, two translational guide rods 32. These two parallel rods are used to lock the carriage in rotation.
  • the guide rods 32 are each formed by a cylindrical guide rod of revolution extending parallel to the axis ⁇ .
  • the guide carriage 31 then comprises two bores which are traversed by the guide rods 32 so that the movable blades 26 can move in translation along the latter.
  • One of these bores is round in shape while the other is of oblong shape so as to overcome the possible defects of parallelism between the two axes and to ensure the isostatism of the guide.
  • Each movable blade 26 further comprises, opposite the working head 30, an individual foot 35 translationally connected to the movable blade 26, thus to the working head 30. According to the illustrated example, the individual foot 35 and the working head 30 together form a single piece.
  • the individual foot 35 is designed to be driven in translation by magnetic forces at least for closing the clamps 15.
  • the roll 1 comprises on the central shaft 20 a series of actuators 37 integral with said central shaft 20. Each movable blade is mounted independently of the others near a specific actuator on its row with the individual foot 35 facing the corresponding actuator. The roll then comprises as many actuators as blades moving in a row.
  • Each actuator 37 comprises a permanent magnet 38 which is embedded thereon and which is intended to attract in translation the corresponding individual foot 35 towards it so that the individual foot 35 bears against the fixed blade associated with it and with which the head corresponding workpiece forms a clamp.
  • the individual foot 35 is made of a soft ferromagnetic material, such as a ferritic or martensitic stainless steel, that is to say which undergoes a magnetic attraction when it is in the environment of a magnetic field produced for example by a permanent magnet but which does not have in itself magnetic remanence.
  • a soft ferromagnetic material such as a ferritic or martensitic stainless steel
  • each fixed permanent magnet acts on a number of movable blades which corresponds to the number of rows. According to the example, it is six rows of clamps and therefore six moving blades sharing the same permanent magnet. The six moving blades are distributed over the circumference of a section of the rotating roller 1, each belonging to a row of grippers.
  • each individual foot 35 has substantially a shape of circular circular sector ( ⁇ ).
  • each strip 23 occupies the same length (L) of the arc corresponding to said angle ( ⁇ ).
  • each individual foot 35 has substantially a shape of angle triangle of about 50 ° at the bottom.
  • the gap between the adjacent moving blades is about 10 °.
  • the width of each bar corresponds to said length (L) which is computable according to the equations known to those skilled in the art.
  • the clamps of one row are offset from those of another adjacent row.
  • at least a first row of clamps comprises movable blades 26 bent with offsets, for example between 0.25mm and 2.45mm
  • at least a second row of neighboring clamps in the first row comprises movable blades 26 not folded or folded with different offsets.
  • a folded movable blade has a working head 30 whose axis of symmetry is offset with respect to the axis of symmetry of the individual foot 35 of said blade.
  • a Neodymium-Iron-Boron magnet is ideally used, with a high level of remanence, for example about 1.3T. Furthermore, it is a bipolar magnet, that is to say a magnet consisting of two magnet portions magnets in the direction of the thickness. In order to concentrate the flow, at the rear of each magnet may be present a breech of soft ferromagnetic material for closing the field lines. To properly pull the hair, the appropriate clamping force is between 3N and 5N by clamp, and this force is exerted preferably at a distance between 0.1mm and 0.2mm.
  • each actuator 37 comprises around the central shaft 20 a security means 39 in the form of a shoulder 39 circular.
  • Said shoulder 39 is arranged between the magnet 38 and the movable blade 26 which is specific to it.
  • Said shoulder 39 has an outer face 39 'facing the lower part of the individual foot 35, that is to say the end located opposite the working head 30.
  • the outer face 39' is arranged to contact with the lower part of the individual foot 35 during closure of the clamp to avoid contact between the individual foot 35 and the magnet 38.
  • the thickness of the safety shoulder is between 0.1 mm and 0.2 mm which corresponds to the optimum distance for exerting the magnetic force at a distance on the movable blade.
  • the rotation of the roll 1 causes a row of clamps 15 which are initially in the open position.
  • Each movable blade 26 arrives near the corresponding magnet 38, it is attracted by it and translate towards it until the individual foot 35 bears against the shoulder 39 of security and that simultaneously the head of work 30 come to bear against the corresponding fixed blade 25.
  • the clamps 15 remain in the closed position at least until the end of the race where each individual foot 35 is no longer facing the corresponding magnet 38.
  • the magnets are designed to be solicited only during the closing and holding the clamp in the closed position. Thus, the magnets only occupy part of the circumference of the actuator.
  • the closing force must be maintained on an angular stroke of about 15 ° so that the hair is pulled over a distance of at least 4 mm, which corresponds to at its anchoring depth in the skin.
  • the geometric parameters of the components are then optimized with respect to this race.
  • the movable blades 26 on the same side of a median plane ( M) normal to the axis ( ⁇ ) of rotation open in the same direction while the movable blades 26 located on the other side of the median plane (M) open in the opposite direction.
  • the movable blades 26 located to the left of the median plane (M) move to the right in the direction (F1) when they move from their open position to their closed position, while the movable blades 26 located to the right of the median plane (M) move to the left in the direction (F2) as they move from their open position to their closed position and vice versa when they open.
  • F1 the median plane
  • F2 the movable blades 26 located to the right of the median plane
  • each functional block is then completed by one or two opening magnets, identical to the closing magnets but positioned in mirror on the other side of the movable blades and offset by a certain angle to act on the movable blade at different positions of the rotation of the roll 1.
  • One of the opening magnets serves to keep the clamp open just before it closes and the other serves to reopen the clamp to release the torn coat.
  • FIGS. Figures 9 and 10 it is also possible to envisage a magnetic opening of several grippers simultaneously, as illustrated in FIGS. Figures 9 and 10 in which two aperture magnets 38 'identical to the closing magnets are each positioned at one end of the roller in a fixed manner.
  • the two movable blades located at the ends of the roll are drawn in the directions (O1), (O2), that is to say outwardly, by these opening magnets 38 '.
  • the guide rods 32 of each row comprise stop means 40 which are recessed circlips on the guide rods 32.
  • a circlip is positioned between the movable blade attracted by the magnet and the outside of the roller and two other circlips are positioned near but on the other side of the other two movable blades respectively.
  • a symmetrical movement is made on the other part of the row with the other rod.

Landscapes

  • Dry Shavers And Clippers (AREA)
  • Jigs For Machine Tools (AREA)
  • Magnetic Treatment Devices (AREA)
EP15725708.0A 2014-04-04 2015-03-31 Epilateur magnetique Active EP3125720B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1452997A FR3019449B1 (fr) 2014-04-04 2014-04-04 Epilateur magnetique
PCT/FR2015/050835 WO2015150695A1 (fr) 2014-04-04 2015-03-31 Epilateur magnetique

Publications (2)

Publication Number Publication Date
EP3125720A1 EP3125720A1 (fr) 2017-02-08
EP3125720B1 true EP3125720B1 (fr) 2018-03-21

Family

ID=51210553

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15725708.0A Active EP3125720B1 (fr) 2014-04-04 2015-03-31 Epilateur magnetique

Country Status (5)

Country Link
EP (1) EP3125720B1 (zh)
CN (1) CN106170225B (zh)
ES (1) ES2666443T3 (zh)
FR (1) FR3019449B1 (zh)
WO (1) WO2015150695A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3417737B1 (en) 2017-06-19 2019-10-16 Braun GmbH Epilating device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147203B (en) * 1983-09-29 1987-01-07 Gerard Audet Razor with mounting means
FR2556939B1 (fr) * 1983-12-22 1987-10-23 Jean Alazet Appareil a epiler
JP3849345B2 (ja) * 1999-04-23 2006-11-22 松下電工株式会社 脱毛装置
DE102005044176A1 (de) * 2005-09-16 2007-03-29 Braun Gmbh Haarentfernungsgerät
JP2007260172A (ja) * 2006-03-28 2007-10-11 Matsushita Electric Works Ltd 脱毛装置
FR2923685B1 (fr) 2007-11-16 2010-02-26 Seb Sa Tete d'epilation pour un appareil a epiler a pinces d'arrachage

Also Published As

Publication number Publication date
CN106170225B (zh) 2019-07-26
FR3019449A1 (fr) 2015-10-09
ES2666443T3 (es) 2018-05-04
WO2015150695A1 (fr) 2015-10-08
EP3125720A1 (fr) 2017-02-08
FR3019449B1 (fr) 2016-03-11
CN106170225A (zh) 2016-11-30

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