ATE38954T1 - DRIVE DEVICE FOR A VIBRATION DEVICE. - Google Patents

DRIVE DEVICE FOR A VIBRATION DEVICE.

Info

Publication number
ATE38954T1
ATE38954T1 AT85200141T AT85200141T ATE38954T1 AT E38954 T1 ATE38954 T1 AT E38954T1 AT 85200141 T AT85200141 T AT 85200141T AT 85200141 T AT85200141 T AT 85200141T AT E38954 T1 ATE38954 T1 AT E38954T1
Authority
AT
Austria
Prior art keywords
cam
rollers
alpha
oscillation
pivotal arm
Prior art date
Application number
AT85200141T
Other languages
German (de)
Inventor
Gerhard Diefenbach
Hugo Dr Schemmann
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Application granted granted Critical
Publication of ATE38954T1 publication Critical patent/ATE38954T1/en

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).
AT85200141T 1984-02-08 1985-02-07 DRIVE DEVICE FOR A VIBRATION DEVICE. ATE38954T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3404299A DE3404299C2 (en) 1984-02-08 1984-02-08 Drive device for a vibration device
EP85200141A EP0151504B1 (en) 1984-02-08 1985-02-07 Reciprocating drive assembly for household appliance

Publications (1)

Publication Number Publication Date
ATE38954T1 true ATE38954T1 (en) 1988-12-15

Family

ID=6227034

Family Applications (1)

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

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

Family Cites Families (7)

* 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
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.
AT385936B (en) * 1980-07-28 1988-06-10 Philips Nv DRY SHAVER

Also Published As

Publication number Publication date
DE3404299C2 (en) 1986-07-17
DE3404299A1 (en) 1985-08-08
DE3566511D1 (en) 1989-01-05
EP0151504B1 (en) 1988-11-30
JPS60241486A (en) 1985-11-30
EP0151504A2 (en) 1985-08-14
EP0151504A3 (en) 1986-05-28

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee