EP0045107A1 - Rasoir à sec électrique - Google Patents

Rasoir à sec électrique Download PDF

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Publication number
EP0045107A1
EP0045107A1 EP81200780A EP81200780A EP0045107A1 EP 0045107 A1 EP0045107 A1 EP 0045107A1 EP 81200780 A EP81200780 A EP 81200780A EP 81200780 A EP81200780 A EP 81200780A EP 0045107 A1 EP0045107 A1 EP 0045107A1
Authority
EP
European Patent Office
Prior art keywords
cutting knife
movement
drive shaft
gear
frequency
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.)
Granted
Application number
EP81200780A
Other languages
German (de)
English (en)
Other versions
EP0045107B1 (fr
Inventor
Leo Buzzi
Romuald Leander Bukoschek
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3557257&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0045107(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Philips Gloeilampenfabrieken NV
Priority to AT81200780T priority Critical patent/ATE4787T1/de
Publication of EP0045107A1 publication Critical patent/EP0045107A1/fr
Application granted granted Critical
Publication of EP0045107B1 publication Critical patent/EP0045107B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B26B19/28—Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive
    • B26B19/282—Motors without a rotating central drive shaft, e.g. linear motors
    • 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
    • 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
    • B26B19/28—Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive

Definitions

  • the invention relates to a dry shaving apparatus for connection to an alternating current network, with at least one reciprocable cutting knife and an electric motor, the rotor of which is connected to a drive shaft which is coupled to the cutting knife via at least one gear, with this gear converting the rotating movement of the drive shaft takes place in a reciprocating movement of the cutting knife.
  • DE-OS 27 49 936 shows such a dry shaving apparatus.
  • a DC motor is provided as an electric motor in this known dry shaving apparatus, which must be supplied when the apparatus is connected to an AC network via a rectifier arrangement and circuit elements for voltage adjustment, which requires additional effort and the efficiency deteriorates greatly. If one were to use a generally customary AC motor, such as an induction motor or an AC motor, one could only count on the relatively low efficiency that is known to be associated with such motors. For this reason, rocker arm motors are often used for dry shavers of the type specified in the introduction, which have a higher efficiency but are relatively voluminous.
  • the gear with which the use of conventional electric motors converts the rotating movement from the drive shaft to a reciprocating movement for driving the cutting knife, usually comprises an eccentric, which can, for example, interact directly with the cutting knife or via a swing bridge drives, as indicated in DE-OS 27 49 936.
  • the invention has now set itself the task to make a dry shaver of the type mentioned at the beginning with good shaving performance, which, among other things, requires a powerful electric motor, as small and handy as possible, which makes an electric motor with the smallest possible dimensions necessary, because essentially these dimensions determine the size of the housing of the dry shaving apparatus.
  • the two aforementioned requirements for the electric motor namely to be powerful on the one hand and to have small dimensions on the other hand, are known to contradict each other.
  • this object is achieved in that a self-starting single-phase synchronous motor is provided as the electric motor and in that the relative position of the rotor with respect to the cutting knife coupled via the gearbox is selected such that the cutting knife is in those positions of the rotor in which the drive torque of the motor passes through the value zero, in each case essentially in one of the two extreme positions of its reciprocating movement.
  • a self-starting single-phase synchronous motor has a very good efficiency, which means that it has relatively small dimensions with the appropriate performance.
  • a self-starting single-phase synchronous motor has two positions of the rotor, in which the drive torque passes through the value zero, and that it has to have predetermined rest positions for the rotor, offset from these positions, in order to ensure self-starting.
  • the load on the motor In these rest positions of the rotor, the load on the motor must also not be too great so that it starts safely.
  • the load on the motor in those positions of the rotor in which the drive torque passes through the value zero must not be too great so that the rotor can adjust to one of its rest positions when the motor is switched off and can start again on its own.
  • the gearbox couples the drive shaft of the motor to the cutting knife in such a way that, in those positions of the rotor in which the drive torque passes through the value zero, the cutting knife essentially moves in one of the two extreme positions of its and going movement. In the two extreme positions of the cutting knife, which correspond to the reversal points of the reciprocating movement of the same and in which it comes to a standstill, the load moment from the cutting knife is practically zero.
  • each zero crossing of its drive torque coincides with a zero crossing of the load from the cutting knife, with which all conditions for a safe self-starting of the motor are met and are therefore met a dry shaver with a reciprocating cutting knife can be used advantageously to make it small and handy.
  • the frequency of the rotating movement of its drive shaft is equal to the mains frequency, e.g. 50 Hz.
  • the mains frequency e.g. 50 Hz.
  • two successive gears are provided, one of which is designed as an eccentric gear and for converting the rotating movement from the drive shaft into a reciprocating movement for driving the cutting knife and the other into an integral number Multiplying the frequency of the movement for the drive of the cutting knife compared to the frequency of the rotating movement of the drive shaft is used.
  • the frequency of the reciprocating movement of the cutting knife can be increased, for example to 100 Hz, as is also the case with dry shavers with an oscillating armature motor, but taking advantage of the advantages of using a self-starting single-phase synchronous motor which have already been mentioned. already mentioned, also exist with a rocker arm motor.
  • the gear unit which is used to multiply the frequency of the movement for the drive of the cutting knife is designed as a toothed gear unit with at least two toothed rims, the first of which on the drive shaft of the self-starting single-phase synchronous motor sits and the last is coupled to an eccentric, which cooperates with the gear for converting the rotating movement from the drive shaft into a reciprocating movement for driving the cutting knife.
  • the frequency of the reciprocating movement of the cutting Knife compared to the frequency of the rotating movement of the drive shaft, for example, be doubled or tripled.
  • the gear unit which is used to multiply the frequency of the movement for the drive of the cutting knife is designed as a toggle lever gear unit, in which a drive arm which engages in the free articulation point of the toggle lever gear unit has an eccentric driven by the self-starting single-phase synchronous motor of the transmission for converting the rotating movement from the drive shaft into a reciprocating movement for driving the cutting knife and the output-side end of the toggle mechanism provides the reciprocating movement for driving the cutting knife.
  • the frequency of the reciprocating movement of the cutting knife is doubled compared to the rotating movement of the drive shaft, the condition for the integral multiplication of the frequency also being immediately fulfilled.
  • a double cam gear is advantageous as a cam gear, the reciprocating movement for driving the cutting knife being taken off together by the two cams lying next to one another and arranged at an offset angle.
  • the cam mechanism can advantageously also be designed as an arched triangular gear, in which the arched triangle is constructed on the basis of an equilateral triangle, the drive takes place in the center of gravity of the equilateral triangle and the reciprocating movement for driving the cutting knife is removed from the circumference of the arched triangle .
  • the frequency of the reciprocating movement of the cutting knife is tripled compared to the frequency of the rotating movement of the drive shaft, simultaneously with the conversion of the rotating movement from the drive shaft into a reciprocating movement for driving the cutting knife. again the condition for the integer multiplication of the frequency is immediately fulfilled.
  • Fig. 1 shows a dry shaving apparatus with a self-starting single-phase synchronous motor which drives the cutting knife via an eccentric and a rocking lever, the position of the moving parts shown corresponding to a position of the rotor in which the drive torque passes through the value zero.
  • 2 shows a dry shaving apparatus of a similar design, in which the frequency of the reciprocating movement for driving the cutting knife is doubled compared to the frequency of the rotating movement of the drive shaft with a toothed gear mechanism.
  • FIG. 3 shows a dry shaving apparatus in which the frequency for driving the cutting knife is doubled compared to the frequency of the rotating movement of the drive shaft by means of a toggle lever mechanism.
  • Fig. 4 shows a dry shaver, in which a conversion of the rotating movement into a reciprocating movement as well as a doubling of the frequency of the movement takes place with a double cam gear.
  • Fig. 5 shows a dry shaver, in which with a triangular gear both a conversion of the rotating movement into a reciprocating movement and a tripling of the frequency of the movement takes place.
  • a dry shaver which consists of a base apparatus 2, on which a shaving head 3 is placed.
  • the shaving head 3 has a shaving head frame 4 which carries a curved screen shaving foil 5 which is hooked into the hooks 7 correspondingly arranged on the shaving head frame with openings 6 provided in the region of its longitudinal edges.
  • the base apparatus 2 has two housing halves, of which one housing half 8 is visible in FIG. 1. At the end of this housing half 8 facing the shaving head 3, two webs 9 and 10 are provided, each carrying a helical spring 11 and 12, respectively.
  • a cutting knife 13 is fastened to these scraper springs and has a number of arcuate knife blades 14 which cooperate with the screen shaving foil 5 when the shaving head 3 is placed on the base apparatus 2.
  • the springs 11 and 12 deliver the contact pressure for the cutting knife 13 to the screen shear foil 5.
  • the cutting knife 13 can be driven back and forth, for which purpose it has a recess 15 into which the free end 16 of a rocking lever 17 engages, which engages around one the housing half 8 provided axis 18 is pivotable.
  • An electric motor 19 is also attached to the housing half 8 and has a stator 22 provided with excitation windings 20 and 21 and a rotor 24 connected to a drive shaft 23.
  • the excitation windings 20 and 21 are connected, if necessary via a switch (not shown), to a plug 25 to which a mains cable can be connected, via which the apparatus can be connected to an AC network.
  • a self-starting single-phase synchronous motor is provided as the electric motor.
  • a self-starting single-phase synchronous motor is relatively powerful due to its very good efficiency with small dimensions, so that a dry shaver equipped with such a motor can be made relatively small and handy with good shaving performance. Such a dry shaver is therefore inexpensive and particularly user-friendly.
  • the rotor 24 of the self-starting single-phase synchronous motor is partially enclosed in an arc shape by the U-shaped legs 30 and 31 of the stator 22.
  • the cylindrical rotor 24, which is made of a magnetizable material, is magnetized in a diameter direction, as indicated by the arrow 32, so that an N pole and an S pole, which form a pair of poles, result diametrically opposite one another on its circumferential surface form.
  • the rotor 24 of a self-starting single-phase synchronous motor requires defined rest positions, each of which deviates somewhat angularly from a position of the rotor in which the drive torque passes through the value zero so that it can start up automatically.
  • the two positions of the rotor, which correspond to the drive torque zero, and also the two rest positions of the rotor are offset from one another by 180 and are completely equivalent, so that only one of these positions must be referred to below.
  • the angular deviation of the rest position of the rotor 24, which is indicated in FIG. 1 by the arrow 33 drawn with dashed lines, from the position of the rotor, in which the drive torque passes through the value zero, is of the order of 10 to 25 0 , as can also be seen in FIG. 1 from the angular positions of the two arrows 32 and 33.
  • This rest position is brought about by appropriate shaping of the legs 30 and 31 in their area opposite the rotor 24, an uneven air gap being formed, for example by the projections 34 ′ and 35 shown in FIG. 1.
  • a reciprocatingly driven cutting knife has a variable load torque which is in the two extreme positions of the reciprocating Movement, which are the reversal points for the movement of the cutting knife, in which it comes to a brief standstill, also passes through the value zero. If the zero crossing for the drive torque of the motor initially coincides approximately in phase with the zero crossing of the load torque caused by the cutting knife, it is achieved that the load is practically zero in the critical position of the rotor and thus fulfills the conditions for a safe self-starting of the motor are.
  • the eccentric 26 can first be placed on the drive shaft 23 in a rest position of the rotor 24, in which case the corresponding angular difference between the rest position and that position of the rotor in which the drive torque passes through the value zero by a corresponding offset of the actually position of the cutting knife relative to its extreme position set via the gear 29 is taken into account.
  • the extreme left position of the reciprocating movement of the cutting knife 13 was brought into phase alignment with a position of the rotor 24 in which the drive torque passes through the value zero;
  • the right extreme position of the cutting knife could also be used in the same way. Since the frequency of the rotating movement of the drive shaft 23 is the same as the mains frequency in the case of a self-starting single-phase synchronous motor which, as mentioned, has one pole pair, the cutting knife 13 executes a reciprocating movement with the mains frequency.
  • a self-starting single-phase synchronous motor can thus be used in a dry shaving apparatus with a reciprocally drivable cutting knife to drive the same, if the transmission, which couples the drive shaft to the cutting knife, couples the movement of the cutting knife with the movement in the correct phase of the rotor of the motor with respect to the course of the drive torque and the load torque to ensure that the motor is actually able to start by itself.
  • the transmission which couples the drive shaft to the cutting knife
  • the frequency of the movement for driving the cutting knife be greater than the mains frequency, because this improves the shaving performance.
  • two successive gears are therefore provided, of which one gear 29, which is designed as an eccentric gear, for converting the rotating movement from the drive shaft 23 into a reciprocating movement for driving the cutting knife 13 and the like other gear 36 for an integral multiplication of the frequency of the movement for driving the cutting knife 13 compared to the frequency of the rotating movement of the drive shaft 23.
  • the gear 36 is designed as a gear transmission with two gears 37 and 38, of which the first gear 37 is seated on the drive shaft 23 of the self-starting single-phase synchronous motor 19.
  • the cooperating with this gear 37 second gear 38 is rotatably supported by an axis 39 on the housing half 8 and has exactly half the number of teeth as the tooth edge 37, which is why the gear 38 makes twice the number of revolutions as the gear 37, so that a there is an exact integer multiplication of the frequency of the movement for driving the cutting knife, which always leaves the relative positions of the rotor 24 and the cutting knife 13 unchanged.
  • the gear 29 for converting the rotating movement from the drive shaft into a reciprocating movement for driving the cutting knife is formed by an eccentric gear, for which purpose an eccentric pin 27 is provided on the tooth edge 38, on which a connecting rod 40 is placed, which is about a film hinge 41 is connected to the rocker arm 17.
  • an eccentric gear for which purpose an eccentric pin 27 is provided on the tooth edge 38, on which a connecting rod 40 is placed, which is about a film hinge 41 is connected to the rocker arm 17.
  • the gear transmission with a greater integral multiplication of the frequency of the movement for driving the cutting knife than double, for example with triple.
  • the Teeth somewhat elastic, so that they can absorb intermittent loads, such as those that occur when the engine is switched on.
  • gear 29 designed as an eccentric gear for converting the rotating movement from the drive shaft 23 into a reciprocating movement for driving the cutting knife 13
  • gear 36 serves to double the frequency of the movement for driving the cutting knife compared to the frequency of the rotating movement of the drive shaft.
  • the gear 29 here again consists of an eccentric 26 mounted on the drive shaft 23, which carries an eccentric pin 27 to which a drive arm 42 is pivotally connected, which cooperates with the gear 36.
  • This gear 36 is designed as a toggle lever gear.
  • the eccentric 26 is again placed on the drive shaft 23 such that in the position of the rotor 24 shown in FIG. 3 and indicated by the arrow 32, in which the drive torque passes through the value zero, the cutting knife 13 is adjusted via the gear 29 and the gear 36 in one of the two extreme positions of its reciprocating movement, in which no load is transmitted to the engine. Since such a toggle lever mechanism in itself causes an integral and indeed a two-fold multiplication of the drive frequency, it is again ensured that the set phase position of the movement of the cutting knife 13 does not change compared to the movement of the rotor 24. This means that the self-starting single-phase synchronous motor can always start safely by itself.
  • the cutting knife 13 is driven back and forth by a swing bridge 48.
  • This swing bridge 48 consists in the usual way of a plate 49 which is articulated to the housing half 8 via two strip-shaped film hinges 50 and 51, so that it can execute a reciprocating movement.
  • An arm 52 is provided on the plate 49, which engages with its free end 53 in the recess 15 provided on the cutting knife 13, as a result of which the movement of the swing bridge 48 is transmitted to the cutting knife 13.
  • a U-shaped bracket 54 is also connected, the two legs 55 and 56 at their ends each carry a rotatable roller 57 and 58, which serve for the transmission of the reciprocating movement to the swing bridge 48, as will be explained in the following.
  • a single gear namely a cam gear
  • the cam mechanism is a double cam gear 59 mounted on the drive shaft 23, which has two adjacent cams 60 and 61 arranged at an angular offset, from which the reciprocating movement for driving the cutting blade 13 is removed via the rollers 57 and 58 of the swing bridge 48 .
  • the two cams 60 and 61 are offset from one another by 90 0 and acts exclusively on each one of these cams constantly depending a of the two rollers 57 and 58 together, namely the roller 57 with the cam 60 and the roller 58 with the cam 61.
  • the circumferential course of the two cams 60 and 61 is coordinated with one another such that the two rollers 57 and 58 are in any angular position or movement phase of the assigned cam follow uniformly, whereby the swing bridge 48 is driven back and forth uniformly.
  • one of the two rollers is expediently designed to be somewhat elastic on its circumference, so that any tolerances are accommodated and each roller is securely seated against the cam in question.
  • the swing bridge 48 can also cooperate with springs which act in the direction of their reciprocating movement, so as to form a vibration system in the drive direction for the cutting knife 13.
  • springs which act in the direction of their reciprocating movement, so as to form a vibration system in the drive direction for the cutting knife 13.
  • an oscillating bridge could be provided instead of an oscillating lever.
  • the two expediently integrally formed cams 60 and 61 are again placed on the drive shaft 23 such that in the position of the rotor 24 shown in FIG. 4 and indicated by the arrow 32, in which the drive torque passes through the value zero, the cutting knife 13 the swing bridge 48 is adjusted in one of the two extreme positions of its reciprocating movement.
  • the double cam gear again multiplies the drive frequency, it is also ensured here that the set phase position of the movement of the cutting blade 13 does not change with respect to the movement of the rotor 24, so that the conditions for the self-starting of the motor are always met.
  • a rocking lever 17 is again provided for driving the cutting knife 13.
  • a cam mechanism is used, with which both the conversion of the rotating movement from the drive shaft 23 into a reciprocating movement for driving the cutting knife 13 and an integral multiplication of the frequency of the movement for driving the cutting knife 13 are compared the frequency of the rotating movement of the drive shaft 23 takes place.
  • this cam gear is an arc triangular gear 62, the arc triangle 63 of which is constructed on the basis of an equilateral triangle and is placed on the drive shaft 23 such that the drive takes place in the center of gravity of the equilateral triangle.
  • the Free end 16 of the rocker arm 17 opposite end is designed as a U-shaped bracket
  • the two legs 64 and 65 embrace the arch triangle 63 and rest on it. Due to the property of such an arc triangle 63 that it has the same distance between two parallel tangents in every angular position, it is ensured that the two legs 64 and 65 of the rocking lever 17 are always in operative connection with the peripheral surface of the arc triangle.
  • the rocking lever 17 thus follows the respective angular position or phase of movement of the triangular arch.
  • the circumferential surface of the triangular arch is expediently formed by involutes in order to make the movement sequence uniform.
  • the measure that the equilateral arch triangle 63 is driven in the center of gravity and not off-center ensures that no stops occur in the movement removed from the circumference of the arch triangle, but instead a continuous movement sequence results from one revolution of the arch triangle. Since such an arc triangle has three extreme positions, the frequency of the rotating movement of the drive shaft 23 is tripled, which means that the frequency of the reciprocating movement of the cutting blade 13 is also tripled compared to the frequency of the rotating movement of the drive shaft 23.
  • the arch triangle 63 is again placed on the drive shaft 23 so that in the position of the rotor 24 shown in FIG. 5 and indicated by the arrow 32, in which the drive torque passes through the value zero, the cutting knife 13 via the rocker arm 17 into one of the two extreme positions of his back and forth movement is adjusted.
  • the movement of the cutting knife 13 in the phase position is coupled to the movement of the rotor 24 of the self-starting single-axis synchronous motor 19 in such a way that the load torque also occurs in those positions of the rotor 24 in which the drive torque passes through the value zero passes through the value zero from the cutting knife, which ensures that the motor starts again safely.
  • a self-starting single-phase synchronous motor is of course not only limited to the drive of a cutting knife interacting with a screen shaving foil, i.e. a shaving part for cutting short hair, but that such a motor achieves the same advantages, for example the cutting knife of a long-hair cutter can also be driven, which consists of a plate-shaped knife provided with cutting teeth, which cooperates with a stationary knife of the same type.
  • a motor it would also be possible with such a motor to drive both a shaving part for cutting short hair and a long hair cutter or to provide a switchable drive for the same.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
EP81200780A 1980-07-28 1981-07-08 Rasoir à sec électrique Expired EP0045107B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81200780T ATE4787T1 (de) 1981-07-08 1981-07-08 Trockenrasierapparat.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0392280A AT385936B (de) 1980-07-28 1980-07-28 Trockenrasierapparat
AT3922/80 1980-07-28

Publications (2)

Publication Number Publication Date
EP0045107A1 true EP0045107A1 (fr) 1982-02-03
EP0045107B1 EP0045107B1 (fr) 1983-09-28

Family

ID=3557257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81200780A Expired EP0045107B1 (fr) 1980-07-28 1981-07-08 Rasoir à sec électrique

Country Status (6)

Country Link
US (1) US4400875A (fr)
EP (1) EP0045107B1 (fr)
JP (1) JPS5752481A (fr)
AT (1) AT385936B (fr)
CA (1) CA1174840A (fr)
DE (1) DE3161027D1 (fr)

Cited By (13)

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Publication number Priority date Publication date Assignee Title
DE3301265A1 (de) * 1983-01-17 1984-07-19 Philips Patentverwaltung Gmbh, 2000 Hamburg Elektromotor mit einem eine gebogene form aufweisenden statoreisen
DE3419177C1 (de) * 1984-05-23 1985-01-31 Philips Patentverwaltung Gmbh, 2000 Hamburg Antriebsvorrichtung mit einem Rotationsantriebsmotor
EP0147748A2 (fr) * 1983-12-23 1985-07-10 Braun Aktiengesellschaft Dispositif pour la transformation du mouvement rotatif d'un excentrique en mouvement va-et-vient
DE3404297A1 (de) * 1984-02-08 1985-08-08 Philips Patentverwaltung Gmbh, 2000 Hamburg Vorrichtung fuer ein vibrationsgeraet, das mittels eines einphasensynchronmotors angetrieben wird
DE3404298A1 (de) * 1984-02-08 1985-08-08 Philips Patentverwaltung Gmbh, 2000 Hamburg Antriebsvorrichtung an einem elektrisch angetriebenen vibrationsgeraet
DE3404299A1 (de) * 1984-02-08 1985-08-08 Philips Patentverwaltung Gmbh, 2000 Hamburg Antriebsvorrichtung fuer ein vibrationsgeraet
DE3404296A1 (de) * 1984-02-08 1985-08-14 Philips Patentverwaltung Gmbh, 2000 Hamburg Antriebsvorrichtung fuer einen vibrationstrockenrasierapparat mit einer scherfolie und einem hin und her bewegbaren schneidelement und antrieb durch einen einphasensynchronmotor
DE3417806A1 (de) * 1984-05-14 1985-11-14 Philips Patentverwaltung Gmbh, 2000 Hamburg Vibrationstrockenrasierapparat, der mittels eines zweipoligen einphasensynchronmotors angetrieben wird
DE3417807A1 (de) * 1984-05-14 1985-11-14 Philips Patentverwaltung Gmbh, 2000 Hamburg Vibrationstrockenrasier- bzw. haarschneidegeraet, das mittels eines zweipoligen einphasensynchronmotors angetrieben wird
DE3610770A1 (de) * 1985-08-06 1987-02-19 Philips Patentverwaltung Antriebsvorrichtung fuer ein haushalts-vibrationsgeraet
US4760297A (en) * 1986-03-29 1988-07-26 U.S. Philips Corporation Small appliance driven by unidirectional single-phase synchronous motor
EP0349076A2 (fr) * 1988-07-01 1990-01-03 Philips Patentverwaltung GmbH Appareil vibratoire de ménage
GB2290739A (en) * 1994-06-29 1996-01-10 Sanyo Electric Co Electric shaver

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JPH03123471U (fr) * 1990-03-29 1991-12-16
GB9605861D0 (en) * 1996-03-20 1996-05-22 Pilkington Perkin Elmer Ltd Mounting arrangment
DE19736776C2 (de) * 1997-08-23 1999-06-02 Braun Gmbh Trockenrasierapparat
US6647813B2 (en) * 2001-08-23 2003-11-18 Robert R. Green Flexible rod transmission
US7251896B2 (en) * 2004-09-14 2007-08-07 Ideavillage Products Corp. Hair clipper with pivot head
DE102006030946A1 (de) * 2006-07-05 2008-01-10 Braun Gmbh Schereinheit für einen Trockenrasierer
AT514263B1 (de) * 2013-04-17 2016-06-15 Manfred Dr Schrödl Elektrische Maschine
US20170173804A1 (en) * 2015-12-17 2017-06-22 Troy Patrick Worth Opposed dual foil shaving heads and trimmer
RU2627525C1 (ru) * 2016-03-22 2017-08-08 Валерий Вильгельмович Петрашкевич Электробритва с роторным ножом
WO2019083085A1 (fr) * 2017-10-23 2019-05-02 김순식 Structure de tondeuse à cheveux électrique
USD1013957S1 (en) 2021-04-05 2024-02-06 Church & Dwight Co., Inc. Angled shaver

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DE883256C (de) * 1951-08-10 1953-07-16 Bosch Gmbh Robert Haarschneidemaschine mit elektromagnetischem Antrieb durch einen Schwinganker
DE2031141A1 (de) * 1970-06-24 1971-12-30 Moczala H Kommutator-Motor mit einem Dauermagnetläufer

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3301265A1 (de) * 1983-01-17 1984-07-19 Philips Patentverwaltung Gmbh, 2000 Hamburg Elektromotor mit einem eine gebogene form aufweisenden statoreisen
EP0147748A3 (en) * 1983-12-23 1987-11-19 Braun Aktiengesellschaft Device for conversion of the rotary motion of an eccentric into a reciprocating motion
EP0147748A2 (fr) * 1983-12-23 1985-07-10 Braun Aktiengesellschaft Dispositif pour la transformation du mouvement rotatif d'un excentrique en mouvement va-et-vient
DE3404296A1 (de) * 1984-02-08 1985-08-14 Philips Patentverwaltung Gmbh, 2000 Hamburg Antriebsvorrichtung fuer einen vibrationstrockenrasierapparat mit einer scherfolie und einem hin und her bewegbaren schneidelement und antrieb durch einen einphasensynchronmotor
EP0152143A3 (en) * 1984-02-08 1986-05-28 Philips Patentverwaltung Gmbh Reciprocating drive assembly for shearfoil razor with singlephase synchronous motor
DE3404299A1 (de) * 1984-02-08 1985-08-08 Philips Patentverwaltung Gmbh, 2000 Hamburg Antriebsvorrichtung fuer ein vibrationsgeraet
EP0151504A2 (fr) * 1984-02-08 1985-08-14 Philips Patentverwaltung GmbH Système d'entraînement à mouvement de "va-et-vient" pour petit appareil électrique
DE3404297A1 (de) * 1984-02-08 1985-08-08 Philips Patentverwaltung Gmbh, 2000 Hamburg Vorrichtung fuer ein vibrationsgeraet, das mittels eines einphasensynchronmotors angetrieben wird
EP0151503A2 (fr) * 1984-02-08 1985-08-14 Philips Patentverwaltung GmbH Procédé pour déterminer le contour d'une came destinée a l'entraînement d'un élément de machine vibrant dans un vibreur entraîné électriquement, notamment un rasoir électrique
EP0152143A2 (fr) * 1984-02-08 1985-08-21 Philips Patentverwaltung GmbH Système d'entraînement à mouvement de "va-et-vient" pour rasoir électrique à feuille perforée équipé d'un moteur synchrone mono-phase
EP0152144A2 (fr) * 1984-02-08 1985-08-21 Philips Patentverwaltung GmbH Système d'entraînement oscillatoire pour petit appareil à moteur synchrone monophase
EP0151504A3 (en) * 1984-02-08 1986-05-28 Philips Patentverwaltung Gmbh Reciprocating drive assembly for household appliance
DE3404298A1 (de) * 1984-02-08 1985-08-08 Philips Patentverwaltung Gmbh, 2000 Hamburg Antriebsvorrichtung an einem elektrisch angetriebenen vibrationsgeraet
EP0152144A3 (en) * 1984-02-08 1986-05-14 Philips Patentverwaltung Gmbh Vibrational drive assembly for appliance with single phase synchronous motor
EP0151503A3 (en) * 1984-02-08 1986-05-14 Philips Patentverwaltung Gmbh Drive assembly for electrical appliance
DE3417807A1 (de) * 1984-05-14 1985-11-14 Philips Patentverwaltung Gmbh, 2000 Hamburg Vibrationstrockenrasier- bzw. haarschneidegeraet, das mittels eines zweipoligen einphasensynchronmotors angetrieben wird
DE3417806A1 (de) * 1984-05-14 1985-11-14 Philips Patentverwaltung Gmbh, 2000 Hamburg Vibrationstrockenrasierapparat, der mittels eines zweipoligen einphasensynchronmotors angetrieben wird
EP0164153A1 (fr) * 1984-05-14 1985-12-11 Philips Patentverwaltung GmbH Rasoir à sec entraîné par un moteur synchrone monophasé bipolaire
DE3419177C1 (de) * 1984-05-23 1985-01-31 Philips Patentverwaltung Gmbh, 2000 Hamburg Antriebsvorrichtung mit einem Rotationsantriebsmotor
DE3610770A1 (de) * 1985-08-06 1987-02-19 Philips Patentverwaltung Antriebsvorrichtung fuer ein haushalts-vibrationsgeraet
EP0212719A3 (fr) * 1985-08-06 1987-11-11 Philips Patentverwaltung GmbH Dispositif d'entraínement pour un appareil vibrateur domestique
EP0212719A2 (fr) * 1985-08-06 1987-03-04 Philips Patentverwaltung GmbH Dispositif d'entraînement pour un appareil vibrateur domestique
US4791327A (en) * 1985-08-06 1988-12-13 U.S. Philips Corp. Drive mechanism for a domestic vibration apparatus
US4760297A (en) * 1986-03-29 1988-07-26 U.S. Philips Corporation Small appliance driven by unidirectional single-phase synchronous motor
EP0349076A2 (fr) * 1988-07-01 1990-01-03 Philips Patentverwaltung GmbH Appareil vibratoire de ménage
EP0349076A3 (fr) * 1988-07-01 1991-04-03 Philips Patentverwaltung GmbH Appareil vibratoire de ménage
GB2290739A (en) * 1994-06-29 1996-01-10 Sanyo Electric Co Electric shaver
US5685077A (en) * 1994-06-29 1997-11-11 Sanyo Electric Co., Ltd. Electric shaver
GB2290739B (en) * 1994-06-29 1998-01-21 Sanyo Electric Co Electric shaver

Also Published As

Publication number Publication date
JPH0245470B2 (fr) 1990-10-09
US4400875A (en) 1983-08-30
ATA392280A (de) 1987-11-15
JPS5752481A (en) 1982-03-27
AT385936B (de) 1988-06-10
DE3161027D1 (en) 1983-11-03
CA1174840A (fr) 1984-09-25
EP0045107B1 (fr) 1983-09-28

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