EP0151504A3 - Reciprocating drive assembly for household appliance - Google Patents

Reciprocating drive assembly for household appliance Download PDF

Info

Publication number
EP0151504A3
EP0151504A3 EP85200141A EP85200141A EP0151504A3 EP 0151504 A3 EP0151504 A3 EP 0151504A3 EP 85200141 A EP85200141 A EP 85200141A EP 85200141 A EP85200141 A EP 85200141A EP 0151504 A3 EP0151504 A3 EP 0151504A3
Authority
EP
European Patent Office
Prior art keywords
cam
rollers
alpha
oscillation
pivotal arm
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
EP85200141A
Other languages
German (de)
Other versions
EP0151504B1 (en
EP0151504A2 (en
Inventor
Gerhard Diefenbach
Hugo Dr. Schemmann
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.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Patentverwaltung GmbH
Philips Gloeilampenfabrieken 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
Application filed by Philips Patentverwaltung GmbH, Philips Gloeilampenfabrieken NV filed Critical Philips Patentverwaltung GmbH
Priority to AT85200141T priority Critical patent/ATE38954T1/en
Publication of EP0151504A2 publication Critical patent/EP0151504A2/en
Publication of EP0151504A3 publication Critical patent/EP0151504A3/en
Application granted granted Critical
Publication of EP0151504B1 publication Critical patent/EP0151504B1/en
Expired legal-status Critical Current

Links

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
    • 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
    • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Transmission Devices (AREA)
  • Dry Shavers And Clippers (AREA)
  • Massaging Devices (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

1. A drive mechanism for a vibration appartus, in particular a small domestic apparatus such as a dry shaver or a massage device, in which the rotor shaft of a rotary drive motor (5) drives a cam-and-follower mechanism, which converts the motor rotation into an oscillation, cam-following rollers (31, 31a) being arranged on a driven end of a pivotal arm (25) which is pivotable about a central portion, and a vibratory part (39) to be driven being arranged on the driving end (35) of the pivotal arm, characterized in that two rollers (31, 31a) simultaneously follow the profile (33, 333, 433) of a cam (21, 321, 421) which rotates with the rotor shaft, the movement impressed on the pivotal arm (25) by the first roller (31) is taken off the cam geometrically shifted through a number of degrees of rotation of the cam (21, 321, 421) equal to alpha0 = 360 degrees/2n or an odd multiple thereof relative to the movement impressed on the pivotal arm (25) by the second roller (31a), n being the frequency multiplication factor of the oscillation frequency of the rollers (31, 31a) and the vibratory part (39) relative to the angular frequency of the cam, the excursion impressed on the pivotal arm (25) by the rollers (31, 31a) during the follower movement depends on the angle of rotation alpha of the cam (21, 321, 421) to the same extent for both rollers (31, 31a), allowance being made for the roller diameter, oscillation amplitude, oscillation waveform, and the average distance (b) between the cam axis (19) and the roller axis (29, 29a), the cam (21, 321, 421) is dimensioned in such a way that the rollers (31, 31a) experience a periodic excursion (x1 and x2 respectively) which depends on the angle of rotation alpha of the cam, the fundamental frequency of the oscillation being n times as high as the angular frequency of the cam (21, 321, 421) and the symmetry requirements for the excursions x1 and x2 being : x1 = - x2 with x2 = f(alpha), x2 = f(alpha +- alpha 0), and alpha0 = 360 degrees . (2mu + 1/2n), mu = 0, 1, 2, ... where n is preferably 1, 2, 3 or 4, and alpha0 is the angular spacing between the two rollers (31, 31a).
EP85200141A 1984-02-08 1985-02-07 Reciprocating drive assembly for household appliance Expired EP0151504B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85200141T ATE38954T1 (en) 1984-02-08 1985-02-07 DRIVE DEVICE FOR A VIBRATION DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3404299 1984-02-08
DE3404299A DE3404299C2 (en) 1984-02-08 1984-02-08 Drive device for a vibration device

Publications (3)

Publication Number Publication Date
EP0151504A2 EP0151504A2 (en) 1985-08-14
EP0151504A3 true EP0151504A3 (en) 1986-05-28
EP0151504B1 EP0151504B1 (en) 1988-11-30

Family

ID=6227034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85200141A Expired EP0151504B1 (en) 1984-02-08 1985-02-07 Reciprocating drive assembly for household appliance

Country Status (4)

Country Link
EP (1) EP0151504B1 (en)
JP (1) JPS60241486A (en)
AT (1) ATE38954T1 (en)
DE (2) DE3404299C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3610770A1 (en) * 1985-08-06 1987-02-19 Philips Patentverwaltung DRIVING DEVICE FOR A HOUSEHOLD VIBRATION DEVICE
DE3822332A1 (en) * 1988-07-01 1990-01-04 Philips Patentverwaltung HOUSEHOLD VIBRATION DEVICE
GB2290739B (en) * 1994-06-29 1998-01-21 Sanyo Electric Co Electric shaver
CN107262352B (en) * 2017-04-12 2022-03-29 浙江大学宁波理工学院 Vibration device and non-sinusoidal waveform vibration combined system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190918483A (en) * 1909-08-11 1910-06-09 Rose Brothers Ltd Improvements in or relating to Cams and Levers or Arms Working in connection therewith.
FR584528A (en) * 1923-08-02 1925-02-09 Mechanism for transforming a rotary movement into an oscillating movement or vice versa
US2741132A (en) * 1952-06-30 1956-04-10 Goldberg Michael Double-contact cam mechanisms
EP0045107A1 (en) * 1980-07-28 1982-02-03 Koninklijke Philips Electronics N.V. Electric dry shaver

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1527465B2 (en) * 1964-10-08 1970-08-06 Gebr. Hilgeland, 56OO Wuppertal Double pressure bolt press
NL6704472A (en) * 1967-03-29 1968-09-30
NL7404656A (en) * 1974-04-05 1975-10-07 Philips Nv EQUIPMENT INCLUDING A SYNCHRONOUS ENGINE.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190918483A (en) * 1909-08-11 1910-06-09 Rose Brothers Ltd Improvements in or relating to Cams and Levers or Arms Working in connection therewith.
FR584528A (en) * 1923-08-02 1925-02-09 Mechanism for transforming a rotary movement into an oscillating movement or vice versa
US2741132A (en) * 1952-06-30 1956-04-10 Goldberg Michael Double-contact cam mechanisms
EP0045107A1 (en) * 1980-07-28 1982-02-03 Koninklijke Philips Electronics N.V. Electric dry shaver

Also Published As

Publication number Publication date
ATE38954T1 (en) 1988-12-15
DE3404299C2 (en) 1986-07-17
DE3404299A1 (en) 1985-08-08
EP0151504B1 (en) 1988-11-30
DE3566511D1 (en) 1989-01-05
EP0151504A2 (en) 1985-08-14
JPS60241486A (en) 1985-11-30

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