GB1348564A - Electrically driven dry shavers - Google Patents

Electrically driven dry shavers

Info

Publication number
GB1348564A
GB1348564A GB4242071A GB4242071A GB1348564A GB 1348564 A GB1348564 A GB 1348564A GB 4242071 A GB4242071 A GB 4242071A GB 4242071 A GB4242071 A GB 4242071A GB 1348564 A GB1348564 A GB 1348564A
Authority
GB
United Kingdom
Prior art keywords
oscillators
rail
cutter block
group
shaver
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.)
Expired
Application number
GB4242071A
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
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
Application filed by Braun GmbH filed Critical Braun GmbH
Publication of GB1348564A publication Critical patent/GB1348564A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0603—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a piezoelectric bender, e.g. bimorph
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
    • H10N30/2041—Beam type
    • H10N30/2042—Cantilevers, i.e. having one fixed end
    • H10N30/2043—Cantilevers, i.e. having one fixed end connected at their free ends, e.g. parallelogram type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R17/08—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Dry Shavers And Clippers (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Abstract

1348564 Dry shavers BRAUN AG 10 Sept 1971 [11 Sept 1970] 42420/71 Heading B4B [Also in Division H2] A dry shaver is driven by a motor comprising a plurality of bilaminar bending oscillators of ferro-electric ceramic material mechanically connected in parallel and coacting to form at least one oscillating body connected to a driven member. Fig. 3 shows a dry shaver in which the oscillators are mounted face to face on a fixed rail, their free ends being attached to a linearly reciprocatable rail 4<SP>1</SP> which drives the cutter block 24 through a pin 25. Each oscillator comprises a metal strip 1 sandwiched between a pair of ferro-electric ceramic strips 2 faced with metal electrodes 3 and the oscillators are attached to the rail 4 either by securing them in recesses by casting resin or casting them in the rail at the same time as it is moulded. In the shaver shown in Fig. 4, the oscillators are mounted side by side in the rail 4 and actuate a rotary oscillatory cutter block 44 by engaging at their free ends in a groove 443 in the block. The cutter block may be formed in a number of parts each driven by a group of oscillators, Fig. 7 (not shown). Alternatively, Fig. 5, a single rotary cutter block 44 may be actuated by a plurality of oscillators which are fixed at both ends in a frame 471, their centres where the anti-nodes occur being connected together by a comb-shaped web 48 having a projection 481 for driving the cutter block. Fig. 8(a) shows a further embodiment wherein a pair of cutting heads 74 1 , 74 2 are linearly reciprocated in opposite directions by hinged or resilient bars 71 1 , 71 2 which are moved towards and away from each other by rails 4 1 , 4 2 between which bending oscillators 76 are mounted. The oscillators may all bend in the same direction or groups thereof may bend in opposite directions to reduce out-of-balance forces. One of the cutting heads in this arrangement may be replaced by the outer cutting foil and the arrangement may be adapted to actuate a single cutting head by omitting one of the bars 71 1 or 71 2 and fixing the adjacent rail 4 1 or 4 2 to the housing 7, Fig. 8(d) (not shown). The shaver shown in Fig. 3 may have two cutter blocks each operated by a group of oscillators, the two groups being mounted on the rail 4, Fig. 6 (not shown). Alternatively the two groups may actuate a single cutter block, one group oscillating in opposition to the other group and being connected thereto by a two armed lever, Fig. 9 (not shown).
GB4242071A 1970-09-11 1971-09-10 Electrically driven dry shavers Expired GB1348564A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2045152A DE2045152C3 (en) 1970-09-11 1970-09-11 Oscillating motor with bilaminar flexural oscillators for electrically powered dry shavers

Publications (1)

Publication Number Publication Date
GB1348564A true GB1348564A (en) 1974-03-20

Family

ID=5782248

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4242071A Expired GB1348564A (en) 1970-09-11 1971-09-10 Electrically driven dry shavers

Country Status (20)

Country Link
US (1) US3750279A (en)
JP (1) JPS536586B1 (en)
AT (1) AT313747B (en)
AU (1) AU456238B2 (en)
BR (1) BR7105951D0 (en)
CA (1) CA959640A (en)
CH (1) CH544626A (en)
CS (1) CS173584B2 (en)
DE (1) DE2045152C3 (en)
ES (1) ES394954A1 (en)
FR (1) FR2112951A5 (en)
GB (1) GB1348564A (en)
IL (1) IL37681A (en)
IT (1) IT940451B (en)
NL (1) NL7112418A (en)
PL (1) PL83219B1 (en)
SE (1) SE363475B (en)
SU (1) SU449477A3 (en)
TR (1) TR16983A (en)
ZA (1) ZA716092B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2380315A (en) * 2001-09-26 2003-04-02 1 Ltd Bimrph electro-active element with floating central electrode
US7916880B2 (en) 2004-06-30 2011-03-29 New Transducers Limited Transducer

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1351155A (en) * 1971-07-27 1974-04-24 Gillette Co Electric shavers
DE2154974A1 (en) * 1971-11-05 1973-05-10 Braun Ag DRY SHAVER WITH ROUND SHAVING HEAD
DE3309239A1 (en) * 1983-03-15 1984-09-20 Siemens AG, 1000 Berlin und 8000 München Piezo-electric motor
DE19512417C2 (en) * 1995-04-03 1997-02-06 Marco Systemanalyse Entw Piezoelectric ultrasonic transducer
US7320691B2 (en) * 2003-01-15 2008-01-22 Pacific Bioscience Laboratories, Inc. Apparatus and method for acoustic/mechanical treatment of early stage acne
GB0417231D0 (en) * 2004-08-03 2004-09-01 Feonic Plc A razor
US20090056138A1 (en) * 2007-08-31 2009-03-05 Stephens Dan H Method and apparatus for shaving

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2325238A (en) * 1941-04-17 1943-07-27 Bausch & Lomb Microscope
US2373431A (en) * 1943-03-30 1945-04-10 Bell Telephone Labor Inc Electric wave filter
US3336529A (en) * 1962-12-03 1967-08-15 Lockheed Aircraft Corp Vibrating reed frequency responsive device
US3409377A (en) * 1964-11-17 1968-11-05 Vernon L. Rogallo Apparatus and methods for measuring energy of light beams and ion beams
JPS4221964Y1 (en) * 1966-04-21 1967-12-15
US3509626A (en) * 1968-03-11 1970-05-05 Eversharp Inc Electromechanical razor operable at high frequencies
US3631595A (en) * 1970-02-04 1972-01-04 Electrex Corp Electric shaver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2380315A (en) * 2001-09-26 2003-04-02 1 Ltd Bimrph electro-active element with floating central electrode
US7916880B2 (en) 2004-06-30 2011-03-29 New Transducers Limited Transducer

Also Published As

Publication number Publication date
DE2045152A1 (en) 1972-05-10
SE363475B (en) 1974-01-21
DE2045152B2 (en) 1974-06-20
SU449477A3 (en) 1974-11-05
AU3332671A (en) 1973-03-15
CS173584B2 (en) 1977-02-28
PL83219B1 (en) 1975-12-31
US3750279A (en) 1973-08-07
TR16983A (en) 1974-02-19
JPS536586B1 (en) 1978-03-09
BR7105951D0 (en) 1973-04-12
ES394954A1 (en) 1974-12-01
CA959640A (en) 1974-12-24
CH544626A (en) 1973-11-30
AT313747B (en) 1974-02-25
IL37681A (en) 1973-11-28
IT940451B (en) 1973-02-10
NL7112418A (en) 1972-03-14
DE2045152C3 (en) 1975-02-06
IL37681A0 (en) 1971-11-29
FR2112951A5 (en) 1972-06-23
AU456238B2 (en) 1974-12-12
ZA716092B (en) 1972-05-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee