EP2315649B1 - Elektrisches kleingerät zum entfernen von haaren - Google Patents

Elektrisches kleingerät zum entfernen von haaren Download PDF

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Publication number
EP2315649B1
EP2315649B1 EP09772052.8A EP09772052A EP2315649B1 EP 2315649 B1 EP2315649 B1 EP 2315649B1 EP 09772052 A EP09772052 A EP 09772052A EP 2315649 B1 EP2315649 B1 EP 2315649B1
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EP
European Patent Office
Prior art keywords
working head
handpiece
working
operating
small
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
EP09772052.8A
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German (de)
English (en)
French (fr)
Other versions
EP2315649A2 (de
Inventor
Martin Ring
Bernhard Kraus
Christian Neyer
Robert Schäfer
Uwe Schober
Frank Ziegler
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.)
Braun GmbH
Original Assignee
Braun GmbH
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Filing date
Publication date
Application filed by Braun GmbH filed Critical Braun GmbH
Publication of EP2315649A2 publication Critical patent/EP2315649A2/de
Application granted granted Critical
Publication of EP2315649B1 publication Critical patent/EP2315649B1/de
Active legal-status Critical Current
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/3853—Housing or handle
    • B26B19/386—Means for attaching the head thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B26B19/048—Complete cutting head being movable

Definitions

  • the invention relates to a small electrical appliance for removing hair according to the preamble of patent claim 1.
  • Such a small device is from the DE 19735776 A1 known, which shows a razor with relative to the housing drivable shaving head.
  • an electrically operated small device also known as a razor, for removing hair, in which the working head is pivotable about a virtual pivot point 76, which is here at the intersection of the outer surface of the working unit with the longitudinal axis of the shaver.
  • the working unit also consists of an upper and lower blade (the latter not shown), wherein the upper blade is formed by a perforated shaving foil.
  • Identical connecting elements are also formed on the back of the small appliance in the same arrangement and design.
  • the working unit is pivotally mounted in the working head, although here the pivot axis of the working unit is perpendicular to the pivot axis of the working head. Also with this Swivel arrangement the best possible shave to be achieved because the work unit adapts well to the skin surface or hugs.
  • the working head 10 after Fig. 1 Pressed from above with a vertically downward force component acting on the left side down, so the working head 10 pivots counterclockwise and against the force of the left spring 77, in which case the pins 105 lift out of the bearings 70, while the right Pins 105 are pressed by the force of the right spring 77 into the right cups 70. In this movement, therefore, the working head 10 pivots about the centers of the right pin 105. If the working head 10 is pressed with a force acting on the right side of the top of the work unit force, the working head 10 pivots clockwise and thereby remove or solve the right pins 105 after FIG. 1 from the right cups 70, while the left pins 105 are pressed into the left cups 70. With this measure, the working unit 13 should be able to follow the contour of a skin surface particularly well.
  • the small electrical appliance is here an epilation device with which to pluck hair.
  • a working head is mounted on the upper end of the handpiece to a holding device, which has at least one working member which is set by an electric drive motor in rotation.
  • the rotating working unit has mutually moving away or away from each other moving plucking elements 16, in which can penetrate into their spaced apart or opened state hair, which then detected in the further rotation of the working unit of the closing plucking elements, clamped and finally get ripped off.
  • the working head is fixed immovably to the holding device here.
  • FIG. 1 a small electrical appliance for removing hair of the type described above known.
  • the small electrical appliance here is also a shaver after FIG. 1 consists of a handpiece 1 and a holding device 9, 10 formed on the upper head end.
  • the holding device 9, 10 has at the upper end receiving bores 12, in which engage on the side surfaces of the working head RK pin 11.
  • the connecting line of the two central axes of the pins 11 forms the pivot axis (not shown) of the working head RK.
  • a working unit 13, 15, 14 is used, which consists of three parallel adjacent trained upper blades 16, 20, 17 and on the underside resting lower blades 21, 34, 22, the latter serve as working members exists.
  • the outer upper blades 16, 17 are formed by outwardly curved, apertured shear plates, while the associated lower blades 21, 22 consist of juxtaposed, interconnected and outwardly curved disc shaped blades formed by a drive unit (not shown) ) are oscillated back and forth over an upwardly directed drive pin 6.
  • the third working unit 15 extending between the two working units 13, 14 is a so-called center cutter, which is intended to remove slightly longer protruding hairs during the shaving process.
  • the central cutter 15 consists of a double-angled, provided with transverse slots upper blade 20, on the underside of a likewise double-angled and also provided with transverse slots lower blade 34 slidably abuts, which is equally driven by the drive pin 6 oscillating.
  • the working unit 13, 15, 14, on the one hand parallel to the pivot axis of the working head RK and on the other hand perpendicular to the longitudinal axis of the handpiece 1. Side surfaces 7, 8 limit the front and back of the handpiece 1 to the side.
  • the working unit 13, 15, 14 is slidably guided on the working head RK, ie by pressure from the outside on the working unit 13 and / or 15 and / or 14 this can yield due to their in the working head RK mounted by springs arrangement, as for example in FIG. 9b is shown. As soon as the pressure from above on the working unit 13 and / or 15 and / or 14 decreases, the work unit returns to its original position FIG.
  • the working head RK itself is also pivotable in the holding device 9, 10 by a predetermined angle forwards and backwards (FIGS. 24, 25), so that during forces acting on the working head RK from the front or from behind a shaving this can pivot about its pivot axis.
  • a predetermined angle forwards and backwards FIGS. 24, 25
  • the largest possible shaving surface of the working unit 13, 15, 14 comes into contact with the skin surface, since the working head RK can better follow the contour of a skin surface. This achieves a shorter shaving time while improving shaving results.
  • the object of the invention is now to provide a small electrical appliance for removing hair, with the even better results can be achieved during a hair removal process by an even better adjustment of the working unit to the skin surface. At the same time should be shortened by simpler handling of the small appliance, the hair removal time and at the same time while preserving the skin can be achieved.
  • This lateral offset arises whenever the working unit is pressed with a certain contact pressure against the skin surface of an operator while being moved in the direction of the lateral displacement.
  • the resulting, running in the opposite direction to the displacement frictional force exerts on the working head of a transverse force component, which ultimately lead by means of the guide means to a lateral offset of the working head relative to the handpiece.
  • This lateral displacement of the working head according to the invention protects the skin surface and also leads to a faster hair removal, which is particularly in demand in today's faster moving time is.
  • the working unit formed in the working head can be, for example, a plucking device, a cutter for removing hair or else a device whose working unit is in contact with the skin surface of an operator and should follow the contour of the skin surface as well as possible.
  • the working head is automatically reset by resilient return means to its original position, that is, when it is released after a lateral displacement, it automatically moves back to its original position.
  • resilient return means Preferably, one or both sides of the working head or on the guide means attacking spring elements are selected as return means, which always allow a middle position of the working head after completion of a force application.
  • the resilient elements must be made so stable that they safely guide the holding device and the working head on the handpiece, ie, in addition to a sideways pivotal movement of the working head this otherwise has a Maintain stable position relative to the handpiece in order to be able to withstand the contact pressure permanently.
  • spring elements leaf springs, coil springs, torsion springs, elastomers or other shaped springs can be used.
  • the connecting elements formed entirely of leaf springs
  • the working head is mounted particularly elastic to the sides.
  • the leaf springs thus form the Connecting elements from the handpiece to the working head.
  • the connecting elements extend from a support member formed in the handpiece to rigid arms which extend away from the working head and at the free ends of the connecting elements are attached. From the holding device preferably extend two arms down, which may be made of sheet metal or reinforced plastic. Due to the pulled-down arms, extra-long leaf springs can be selected, which ensure high flexibility and flexibility of the working head. In order to increase the elasticity of the leaf springs, openings or thinned areas can be formed on them.
  • connection points of the connecting elements can be welded to the support member as to the free ends of the arms, screwed, riveted, molded or glued.
  • connection points of the connecting elements can be welded to the support member as to the free ends of the arms, screwed, riveted, molded or glued.
  • the small appliance is an epilator, wherein the working unit consists of a rotating plucking drum, are formed on the clamping elements as working members, the open and close during rotation of the plucking drum, so that when sliding along the plucking drum on the skin surface of a Operator get hair into the clamping elements, clamped in further rotation and then plucked.
  • the plucking drum is mounted in a holding device, which in turn is connected via elastic connecting elements with the handpiece, the plucking drum can also respond to lateral movements by moving towards the handpiece to the side and thereby also around the connecting elements in pivoted slightly.
  • the connecting elements are connected via joints with both the holding device and the handpiece, while in another embodiment, the connecting elements are designed as at least partially elastic elements.
  • the small device 1 consists of a handpiece 2, in which at the upper end guide means 6 are formed, to which a holding device 5 is attached.
  • the holding device 5 serves in the FIGS. 1 to 6 for receiving a working head 3, which is pivotable on the holding device 5 about a pivot axis 7 within predetermined limits back and forth.
  • the working head 3 in the direction of arrow 10 is pivotable forward and backward, while in the FIGS. 4 to 6 in the direction of arrow 11 is pivotable to the left and right.
  • the front and left side surfaces 8, 9 are visible while the rear and right side surfaces (no position numbers) are hidden by the front and left side surfaces 8, 9.
  • a working unit 12 was indicated at the top of the working head 3, the in Fig. 1 parallel and in Fig. 4 runs perpendicular to the pivot axis 7.
  • the course of the work unit 12 after Fig. 1 is also on the Figures 2 and 3
  • the course of the work unit 12 after Fig. 4 is on the FIGS. 5 and 6 transferable.
  • the working unit 12 in the case of a razor consists of one or more upper knives 39 (FIG. Fig. 1 . Fig. 4 ) and lower blades 55 ( Fig. 9 . 10 . 11 ) or in an epilator (not shown) from a rotating plucking drum (not shown) with on-and-coming plucking elements.
  • the working unit 12 may be arranged rectilinearly or concentrically on the working head 3.
  • Fig. 1 and 3 is a working unit 12 driving drive motor 4 integrated into the pivotable working head 3.
  • the drive motor 4 is arranged separately from the working head 3 on the handpiece 2 between the guide means 6.
  • the drive motor 4 is also formed separately from the working head 3 on or in the holding device 5.
  • the guide means 6 consist of the FIGS. 1 to 6 of two pairs of rod-shaped or rod-shaped connecting elements 13, 14 and 15, 16, which are connected to the handpiece 2 via hinge devices 17, 17 and 18, 18 and to the holding device 5 via hinge devices 19, 19 and 20, 20.
  • the joints 17, 17 and 18, 18 and 19, 19 and 20, 20 arranged one behind the other lie on hinge axes 21, 22, 23, 24, which always run parallel to one another.
  • the joint axes 21 with 22 and 23 with 24 connecting planes are preferably horizontal or perpendicular to the central axis 44 of the small appliance 1.
  • the preferably metallic holding device 5 is substantially fork-shaped, so that on the two arms 25, 26, the Achslagerung 27, 28 is formed to form the pivot axis 7.
  • the arms 24, 26 are connected to each other via a bottom 79, at the bottom of four projections 99 hinge devices 19, 20 are formed.
  • free space 29 is after the FIGS. 1 and 3 the working head 3 and the drive motor 4 integrated.
  • the drive motor 4 between the guide means 6 forming connecting elements 13 to 16 are used.
  • the holding device 5 consists of a substantially square frame 30, on which on the side surfaces arms 31, 32 project downwards, which widen at their ends to the sides and thus serve to receive the upper joints 19, 20.
  • the axle bearings 27, 28 and the pivot axis 7 are formed centrally.
  • the pivot axis 7 extends centrally above the two pairs of connecting elements 13, 14 and 15, 16.
  • the lower and upper hinge devices 19, 20 consist of pins 98 rotatably engaging in bores 97, wherein the pins 98 are advantageously formed on the connecting elements 13, 14, 15, 16.
  • the pins 98 are secured in the holes 97 against sliding out (not shown).
  • the connecting elements 14, 15 and 14, 16 springs 103, 104 and 105, 106 which hold the working head 3 in its illustrated center position when no lateral force acts on him.
  • These springs 103, 104 were in the other FIGS. 1, 2 omitted for the sake of simplicity, of course they are there as well.
  • the springs 103, 104 105, 106 are based in the handpiece 2, which is indicated by the webs 107, 108.
  • FIGS. 7 and 8th an embodiment of a small appliance 1 is shown as a razor, in which after removal of the front housing shell of the handpiece 2, the guide means 6 can be seen, which allow the lateral movement of the working head 3. Since this is the representation of a prototype, the parts do not correspond to a series production. Nevertheless, with this embodiment, the basic arrangement and operation of a razor 1 can be explained according to the invention. Only the holding device 5, the working head 3 and parts of the handpiece 2 come from a mass production of a long since sold by the applicant shaver, "Series 7, type 790, 760 or 720".
  • the working head 3 consists of an upwardly open U-shaped cutting head frame 35, formed in the between the two legs 37 Receiving space 38 three of upper blades 39 and lower blades (not shown) existing work unit 12 is releasably clipped.
  • the lower knife are in the FIGS. 7 and 8th not to be recognized, since they are covered by the foil-like upper blades 39 and the associated with them front and rear side walls 41.
  • the rear side wall of the working unit 12 is in the Fig. 7 and 8th also not recognizable.
  • the two outer upper blades 39 are made of two parallel, upwardly curved shear films 40 with the hair penetrating many small openings 42, of which only individual openings 42 are exemplified as points. Between the two shaving foils 40, a central cutter 43 is formed, of which also only the upper blade 36 can be seen. The lower blades are in the FIGS. 7 and 8th not shown.
  • the three upper blades 39, 36, 39 are from the top to the receiving space 38 against the force of springs 60, 61 (FIG. Fig. 11 ) differently or equally lowered, so that their surfaces of the skin surface of an operator can optimally adapt.
  • FIGS. 7 and 8th show, has moved due to the trapezoidal suspension of the holding device 5 of the working head 3 by the action of a side force F1 on the one hand to the handpiece 2 to the left and on the other hand also rotated a little clockwise, so that the central axis 45 of the working head 3 by the angle e is inclined relative to the longitudinal axis 44 of the handpiece 2.
  • the central axis 45 of the working head 3 is perpendicular and thus aligned with the longitudinal axis 44 of the handpiece 2.
  • the axes 44, 45 form the symmetry axis of the shaver in this initial position 1.
  • the pivot axis 7 of the working head is horizontal or perpendicular to the longitudinal axis 44, but what the FIGS. 7 and 8th not apparent.
  • the lateral force F1 is the reaction force on the sliding force introduced during the shaving operation via the handpiece 2 and therefore essentially results from the pressing force F3 times the friction coefficient between the skin of an operator and the metal surface of the upper blades 39.
  • a drive member 46 which engages in the working head 3 and coupling means 100, as for example in the Fig. 9 to 11 are shown connected to the lower blades 55.
  • the drive member 46 is connected to a drive motor 47, which is not discussed here in detail, since it the drive motor 47 of the Figures 10 and 11 corresponds and is explained only there.
  • the arms 25, 26 of the holding device 5 are after Fig. 8 angled slightly towards the center in its central region 48 and terminate at a ring 49 which surrounds the drive member 46 with play.
  • the ring 49 is fixedly connected to a frame 50 on which at its front and back the upper joints 19, 20 are formed, which at the front with the front connecting elements 13, 14 and at the rear with the rear connecting elements 15, 16th are hingedly connected.
  • This embodiment has been solved here only because it is in the razor 1 is a test model.
  • the frame would be formed integrally with the holding device 5 and the joints 19, 20 would be integrated directly in the frame 50 and in the connecting elements 13 to 16, as is the case with the lower joints 17, 18.
  • FIGS. 7 and 8th the stationary drive part 53 of the drive motor 4 is fastened to a housing section 54 of the handpiece 2.
  • the lower ends of the connecting elements 13 to 16 are articulated by their joints 17, 18 on the housing part 54.
  • Springs that always bring the working head 3 in the rest position of the shaver in its center position, are not shown here.
  • an electric on-off switch 91 is integrated, which is operable to turn on or off the drive motor 47 from the outside.
  • FIG. 7 are still sketchy springs 103, 104 shown, which engage the side of the frame 50 and are supported on a housing portion 54 of the handpiece 2.
  • the springs 103, 104 bring the working head again in its center position, as soon as the influence of the spring forces is greater than the force acting on the working head 3 forces F1, F3, or shaving is completed.
  • FIGS. 9 to 11 an embodiment of a razor 1 according to the invention is shown in which, in contrast to the shaver 1 after the FIGS. 7 and 8th the guide means 6 does not consist of a lever mechanism but of a leaf spring 83, 84 formed on both sides of the longitudinal axis 44, of which the working head 3 is supported and guided.
  • the center position of the working head 3 is shown relative to the handpiece 2, wherein the cutout shown here a shaver 1 is shown on a much smaller scale than the cutout of the shaver after the Figures 10 and 11 ,
  • a position of the working head 3 is displayed, in which this has moved due to the forces F2 and F3 by the dimension c to the right and has rotated simultaneously by a small angle a counterclockwise.
  • a side force F1 acts from the right and a force F3 from above on the working head 3, so that it has moved by the dimension d to the left and thereby has rotated by a small angle ß clockwise.
  • This movement of the working head 3 is due to the nature of the suspension of the working head 3 to the leaf springs 82, 83 justified, which will be explained later in more detail.
  • FIGS. 9 to 11 are the upper blades 39 of the work unit 12 ( Fig. 7 . 8th ) has been removed from the working head 3, so that to the two outer shear films 40 ( Fig. 8 ) associated lower blade 55 are visible.
  • the lower blade of the middle cutter 43 ( Fig. 7 . 8th ) was for the sake of simplicity in the Fig. 9 to 11 not shown, but of course it is also available.
  • the lower blade 55 consist here of two perpendicular to the longitudinal axis 44 extending blade blocks 56, 57, on which are arranged perpendicular to the blade blocks 56, 57, upwardly curved blades 58, 59 are formed.
  • the knife blocks 56, 57 are connected at their bottom with form springs 60, 61 which are pivotally clipped on T-shaped drive rods 62, 63.
  • the drive rods 62, 63 are connected to the drive member 46 of the drive motor 47, so that when the drive motor 47 an oscillating reciprocating motion on the drive rods 62, 63 transmitted to the form springs 60, 61 and from there to the lower blade 55 in the Z direction becomes.
  • the drive motor 47 consists of a coil 69 wound around an inner portion (not shown) of an iron core 70.
  • the iron core 70 extending upwardly from the coil 69 to the sides is in the opening 65 of the working head 3 via fastening means not shown in the drawing attached.
  • the iron core 70 extends around the outside of the coil 69 around to obtain a closed magnetic circuit.
  • a ring segment-like gap 72 is formed with the constant gap width s, in which almost free of play a two spaced apart magnets (not shown) supporting ring segment-like bottom 73 is movable back and forth.
  • the walls of the gap 72 and the radially extending walls of the bottom 73 describe radii having the common center M.
  • the bottom 73 is after the Figures 10 . 11 similar to a ship swing via four webs 74 102 (two front, two rear) connected to a torsion shaft 75, the center of which is in M.
  • the bottom 73 forms with the embedded magnets and the webs 74, 102 the oscillating about M pivotable rotor 78 of the drive motor 47.
  • the torsion shaft 75 is rotatably mounted, preferably by welding, pressing, gluing, etc. on a rear end plate 76, in turn flanged to the iron core. From the rear attachment point (not shown), the torsion shaft 75 extends forward and is rotatably mounted in a front bearing plate 77 in a fitting bore 101.
  • the front in the drawing two webs 74 are rotatably on the torsion shaft 75 behind the front bearing plate 77, preferably by welding, pressing, gluing, etc. attached.
  • the rear two webs 102 in the drawing are rotatably mounted on the torsion shaft 75 in front of the rear bearing plate 77.
  • a clamping length (not shown), with depending on the material, preferably spring steel wire, and in dependence the dimensions of the torsion shaft 75 as a function of the angle of rotation defined torque as a torsional force results, is set by the maximum pivot angle of the rotor 78 as a function of the magnetic forces of the magnets and the coil 69.
  • the oscillation frequency is determined by the frequency of reversal of the coil 69. Due to the torsional force, the rotor 78 is always moved back into its central position (not shown).
  • the bottom 79 of the holding device 5 is connected to a downwardly open, U-shaped frame part 80, the two legs 81, 82 in the rest position of the shaver ( Fig. 9 ) extend symmetrically to the longitudinal axis 44.
  • the legs 81, 82 run towards each other to their free ends and have at their free ends equidistant from the longitudinal axis 44.
  • the frame member 80 is made of a rigid material, preferably metal, to absorb acting forces without much deformation to be able to.
  • leaf springs 83, 84 are fixed, which in the Figures 9 . 10 .
  • the attachment of the leaf springs 83, 84 on the carrier 85 and the frame part 80 may be connected by spot welding, gluing, screwing or otherwise known to a designer attachment.
  • the support 85 is pivotally mounted on the handpiece 2 via a bearing 111, so that the shearing forces F1, F2 occurring during shaving can be partially absorbed in the carrier 85 by its slight pivoting about the pivot center M1, whereby the working head according to the invention in the direction c or d moves laterally.
  • the carrier 85 is substantially U-shaped in side view and has two opposite, upwardly tapered arms 86, 87, between which a free space 88 is formed. This clearance 88 serves to immerse the leaf springs 83, 84 connected to the legs 81, 82, when the working head 3 according to the Figures 10 and 11 swiveled to the sides.
  • the bearing 111 consists of a bearing shaft 112, which penetrate into the arms 86,87 formed holes 113 and which are mounted on the housing 89 of the handpiece.
  • the bearing axle 112 has stop means (not shown) which fix the carrying part 85 in the housing 89 of the handpiece 2.
  • the working head 12 Since the working head 12 is articulated via the four joints 19, 20) with the connecting elements 13, 14, 15, 16, which in turn are articulated to the handpiece 2 via the joints 17, 18, the working head 3 describes with respect to the handpiece 2 a movement which is on the one hand laterally to the left and on the other hand allows a clockwise pivoting about the joints 17, 18, 19, 20, wherein the connecting elements 13, 14, 15, 16, the connection from the lower joints 17, 18 to the upper joints 19, 20 produce.
  • the laterally acting on the frame 50 springs 103, 104 ensure that the working head 3 returns to its center position when the force effects F1, F3 is removed on the working head 3 of the skin surface.
  • the working head 3 can be pivoted about its pivot axis 7 to the front or to the rear, when the shaver 1 is moved transversely to the pivot axis 7 and thereby the upper blade 39 have skin contact.
  • the resilient lowering of the working unit 12 in the working head 3 and the pivoting of the working head 3 about its pivot axis 7 are known from the prior art for a long time.
  • the guide means 5 according to the invention for lateral displacement or displacement of the working head 3, on the other hand, are already new on their own and lead to better shaving results. If, for example, the joints 17, 18, 19, 20 form a parallelogram on each side, according to the invention only a lateral displacement of the working head 3 with respect to the longitudinal axis 44 would arise. In this case, the central axis 45 of the working head 3 would always run parallel to the longitudinal axis 44, but the working head 3 additionally approaches the handpiece 2 during the lateral movement.
  • the pivot axis 7 always runs perpendicular to the longitudinal axis 44 of the handpiece 2.
  • the shaped springs 60, 61 semi-circular portions 109, which at the free ends of the drive rods 62, 63 Partially enclose perpendicular to these transverse pins 110 with bias.
  • the transverse pins 110 form with the drive rods T-shaped structures.
  • the coil 69 is supplied with clocked current via lines not shown, so that the magnetic core in the coil 69 generated and changing magnetic field on the integrated magnets in the rotor 78 this around the center M by a small angle a ß oscillating moved back and forth.
  • the bottom 73 of the rotor 78 consists of a laminated core, as it applies to the iron core 70.
  • Fig. 10 has the rotor 78 in the clockwise direction by the angle a relative to the central axis 45 of pivoted to the iron core 70 coil 69 pivoted. Since the drive rods 62, 63 are fixedly connected to the rotor 78, they perform an oscillating movement about the center M to the left or to the right.
  • This movement is transmitted via the springs 60, 61 to the lower blade 55, although the lower blade 55 record only the parallel to the upper blades 39 motion, while the resulting in the slightly circular movement of the drive rods 62, 63 vertical movement component in the form of springs 60, 61 is resiliently intercepted and the component is absorbed due to the small rotation in the portions 109 of the shaping springs 60, 61 by the transverse pins 110 of the drive rods 62, 63, in these sections 109 slide concentrically.
  • the working head 3 Since the working head 3 is connected via the guide means 6 designed as resilient connecting elements 83, 84 to the support 85 which can be pivoted in the housing 89 of the handpiece 2 via the support 111, vibrations (reaction forces) generated by the drive motor 47 during operation are transmitted to the working head 3 so that it exerts slight oscillating oscillations corresponding to the vibrations of the drive motor 47, which extend substantially transverse to the central axis 45, so that the shaving result is further favored by this. This is because, as a result of the oscillating sliding back and forth of the upper blades 39 on the skin surface of an operator, larger shaving surfaces can be achieved in the shortest possible time.
  • the leaf springs 83, 84 bend in their longitudinal direction between the clamping points B3, B1 and B4, B2. This movement is further promoted by the fact that the support member 85 pivots about its pivot center M1 counterclockwise by a small amount.
  • the associated, slightly bent leaf springs 83, 84 exert a restoring force, which, as soon as the contact of the outer blade 39 is lifted with the skin surface, causes an independent return of the working head 3 to its original position.
  • the working head 3 is thus formally floating to the side by the dimensions c, d and in or counterclockwise by the angle a, ß to the leaf springs 83, 84 suspended.
  • the working head 3 Since the broad sides of the leaf springs 83, 84 extend substantially perpendicular to the forces acting on the working head 3 transverse forces F2, the working head 3 is mounted in this direction particularly resiliently elastic due to the low resistance moment.
  • the forces acting from front to back or vice versa on the leaf springs 83, 84 because of their large moment of resistance, they provide a high tensile strength.
  • the movement of the working head 3 in the direction from front to back or vice versa takes place exclusively via the pivot axis 7, when the working head 3 is pivotably mounted on the arms 25, 26 formed on the holding device 5, as shown in FIGS FIGS. 9 to 11 the case is.
  • the angle ⁇ is determined between the solder on the foot 95 of the frame member 80 in its initial position and the Lot on the pivoted foot 95 in the counterclockwise direction, the angle ß is between the solder on the foot 95 in the starting position and the solder on the pivoted foot 95 clockwise determined.
  • the in the FIGS. 1 to 11 illustrated guide means 90 allow for shaving a better adaptation of the working head 3 to the skin surface of an operator. This is on the one hand by the lateral displacement of the working head 3 (dimensions c, d) and the simultaneous pivoting (angle a, ß) to the attachment points B3, B4 and on the other hand by the additional pivoting of the working head 3 about its pivot axis 7 and the floating storage of Upper and lower blades 39, 55 achieved in the working head 3, so that the sliding surface of the upper blade 39 can follow almost any contour of a skin surface.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Surgical Instruments (AREA)
EP09772052.8A 2008-07-01 2009-05-20 Elektrisches kleingerät zum entfernen von haaren Active EP2315649B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008031132A DE102008031132A1 (de) 2008-07-01 2008-07-01 Elektrisches Kleingerät zum Entfernen von Haaren
PCT/EP2009/003601 WO2010000352A2 (de) 2008-07-01 2009-05-20 Elektrisches kleingerät zum entfernen von haaren

Publications (2)

Publication Number Publication Date
EP2315649A2 EP2315649A2 (de) 2011-05-04
EP2315649B1 true EP2315649B1 (de) 2018-02-07

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EP09772052.8A Active EP2315649B1 (de) 2008-07-01 2009-05-20 Elektrisches kleingerät zum entfernen von haaren

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US (1) US20110094107A1 (ja)
EP (1) EP2315649B1 (ja)
JP (1) JP5356519B2 (ja)
CN (2) CN102076469A (ja)
DE (1) DE102008031132A1 (ja)
RU (1) RU2487009C2 (ja)
WO (1) WO2010000352A2 (ja)

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Also Published As

Publication number Publication date
WO2010000352A3 (de) 2010-05-20
EP2315649A2 (de) 2011-05-04
JP5356519B2 (ja) 2013-12-04
RU2487009C2 (ru) 2013-07-10
RU2010154021A (ru) 2012-08-10
US20110094107A1 (en) 2011-04-28
CN104942841B (zh) 2020-04-24
JP2011526168A (ja) 2011-10-06
CN104942841A (zh) 2015-09-30
CN102076469A (zh) 2011-05-25
DE102008031132A1 (de) 2010-01-07
WO2010000352A2 (de) 2010-01-07

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