US3264734A - Dry shaver having rotary inner cutter and an oscillating shear plate - Google Patents

Dry shaver having rotary inner cutter and an oscillating shear plate Download PDF

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Publication number
US3264734A
US3264734A US339913A US33991364A US3264734A US 3264734 A US3264734 A US 3264734A US 339913 A US339913 A US 339913A US 33991364 A US33991364 A US 33991364A US 3264734 A US3264734 A US 3264734A
Authority
US
United States
Prior art keywords
shear plate
movement
plate
skin
shaving
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 - Lifetime
Application number
US339913A
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English (en)
Inventor
Starre Gerrit
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.)
US Philips Corp
North American Philips Co Inc
Original Assignee
US Philips Corp
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 US Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of US3264734A publication Critical patent/US3264734A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B26B19/26—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the type performing different methods of operation simultaneously, e.g. reciprocating and oscillating; of the type having two or more heads of differing mode of operation
    • 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
    • B26B19/42—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards providing for straightening the hair to be cut, e.g. by means of bristles; providing for tensioning the skin, e.g. by means of rollers, ledges

Definitions

  • the invention relates to a dry shaving apparatus comprising a set of knives, which perform, by the drive of at least one of them, a shearing motion one along the other, and having inlet apertures for the hair to be cut, in which apparatus the outer knife to be brought into contact with the skin is driven in a direction in a plane substantially parallel to the contact surface.
  • the invention has for its object to provide an improved shaving effect by an improvement in the relative movement of the shear plate in contact with the skin with respect to the skin surface and is characterized in that this movement consists of two simultaneously performed, substantially orthogonal oscillations, the frequency of one oscillation being higher than that of the other.
  • An advantageous embodiment is characterized in that the radio between the frequencies of the oscillations of the outer knife is 4 to 5.
  • FIG. 1 is a partial sectional view of a shaving apparatus with the associated rotating knife rim and stationary stretching rim taken on the line II in FIG. 2.
  • FIG. 2 is a corresponding plan view on a reduced scale and FIG. 3 is a developed, diagrammatic plan view associated with FIG. 2.
  • a round shear plate 1 with rotating inner cutter 2 rotating around the shaft 3 is chosen by way of example.
  • the oscillatory movements of the shaving head are indicated by the arrows R in FIG. 2.
  • Such oscillatory movements may also be employed, when the shear plates are formed by more or less cylindrical plates, one of which performs, for the cutting operation, a reciprocating movement in the direction of the longitudinal axis.
  • a second driving shaft 4 Apart from the driving shaft 3 for the rotary movement of the inner cutter 2, there is indicated a second driving shaft 4, the movement of which, like that of the shaft 3, can be derived from a main driving shaft 5 in any known manner.
  • the shaft 4 has an eccentric pin 7 at its end.
  • This pin 7 is located in a transverse slot 8 in an end piece 9, which forms part of a pivotal plate 10, which bears on a fiat part of the housing 11.
  • the pivotal plate 10 is adapted to slide over the housing 11, but its movement is limited by a pin 12 in the housing, the end of which pin fits in a longitudinal slot 13 in the pivotal plate.
  • the directions of the slots 8 and 13 are at right angles to each other. The pivotal plate can thus perform a movement in its longitudinal direction and to pivot around the pin 12.
  • the pin 7 When the shaft 4 is driven and the pivotal plate 10 is in its normal at rest position, the pin 7 will cause the pivotal plate to perform a reciprocating movement in the longitudinal direction. With each position of the pin 7 the plate 10 is capable of pivoting about the pin 12, so that a pivotal movement can be superimposed on the reciprocating movement.
  • the shaft 4 is provided with a planetary gear 23, a planetary Wheel 14 of which is concentric to the shaft 4 and is provided with two planetary wheels 15 and 16, the teeth of which engage on the one hand a toothed wheel or sun wheel 6 on the shaft 4 and on the other hand the teeth of a toothed rim 17 of the housing 11.
  • the planetary wheel 14 comprises a cam 18, which fits in the guide slot 19 provided in the longitudinal direction of the lower face of the end piece 9. This arrangement causes the pivotal plate 10 to perform also an oscillatory and pivotal motion, which is considerably delayed with respect to the longitudinal movement by the planetary gear.
  • the shear plate 1 fits slidingly in an aperture of guide member 20, rigidly secured to the pivotal plate 10.
  • the active part of the shaving head performs.
  • the assembly of the pivotal plate and the shear plate is journalled on the housing 11 by means of a plate 21 having a recess for accommodating the pivotal plate.
  • This plate 21 comprises furthermore the stretching rim 22, provided on its upper face with a star-shaped grid in order to prevent the treated skin portion frombeing caught along during the oscillatory motion.
  • a dry shaver comprising a shaving head including ing said shear plate in two directions but at different frequencies including two spaced slots, a movable: pin in one slot and a fixed pin in the other slot, the directions:
  • a dry shaver comprising a drive shaft, a shaving head having a fixed part including an apertured shear 20 an apertured shear plate and a movable cutter co-acting therewith, and means provided in said shaver for oscillat- 4x 7 plate and a movable cutter co-actingtherewith, a movable parton said fixed part of said shaving head on which said; shear plate is mounted, a first slotin said movable H part, a recess in said movable part, a first pin secured to one of said parts and engaged in said first slot whereby a reciprocating and pivotal movement is imparted relative to said fixed part,'a second slot in said movable part and .extending substantially perpendicular to said first slot, a second-pin projecting eccentrically-from one end of said drive shaft and co-acting with said second slot whereby when said drive shaft :rotates a reciprocating motion :is imparted to said movable part and a cam' rotatable by said shaft

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
US339913A 1963-02-14 1964-01-24 Dry shaver having rotary inner cutter and an oscillating shear plate Expired - Lifetime US3264734A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL289014 1963-02-14

Publications (1)

Publication Number Publication Date
US3264734A true US3264734A (en) 1966-08-09

Family

ID=19754420

Family Applications (1)

Application Number Title Priority Date Filing Date
US339913A Expired - Lifetime US3264734A (en) 1963-02-14 1964-01-24 Dry shaver having rotary inner cutter and an oscillating shear plate

Country Status (5)

Country Link
US (1) US3264734A (ja)
BE (1) BE643769A (ja)
DE (1) DE1225992B (ja)
GB (1) GB994623A (ja)
NL (1) NL289014A (ja)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038747A (en) * 1973-09-27 1977-08-02 Upton Douglas J Electric razor having an oscillating cutting head
US5983501A (en) * 1997-04-02 1999-11-16 Izumi Products Company Electric shaver
US20070084059A1 (en) * 2005-10-17 2007-04-19 Hannan Jeremiah Jerry M Oscillating triple head electric shaver
US20080141537A1 (en) * 2005-01-12 2008-06-19 Tae-Jun Oh Net-Reciprocating Type Electric Razor
US20100275446A1 (en) * 2009-04-29 2010-11-04 Rovcal, Inc. Rotary electric shaver
US8397388B1 (en) * 2011-11-03 2013-03-19 Hy Steinberg Rotary shaver platform rotation system
US9789619B2 (en) 2013-04-30 2017-10-17 Hasam Eljaouhari Facial hair shaver with built-in facial hair pattern guides
US10668634B2 (en) * 2018-09-24 2020-06-02 Conair Corporation Oscillating rotary shaver

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5621971A (en) * 1995-07-12 1997-04-22 Remington Products Company Multi-purpose attachment for ladies' shaver

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2246459A (en) * 1938-04-20 1941-06-17 Casco Products Corp Shaving machine
US2308920A (en) * 1939-02-23 1943-01-19 Hartford Nat Bank & Trust Co Hair cutting device
US2334254A (en) * 1940-01-20 1943-11-16 Groot Jan De Dry-shaving apparatus
US2396181A (en) * 1944-10-10 1946-03-05 Douglas Leigh Inc Electric razor
FR1058422A (fr) * 1952-06-16 1954-03-16 Rasoir perfectionné
US3028668A (en) * 1960-08-16 1962-04-10 Dechaux Charles Dry shaver with rocking cutter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2339677A (en) * 1942-02-25 1944-01-18 Dalmore A Burns Electric razor
US2590452A (en) * 1947-07-26 1952-03-25 Albin K Peterson Mechanical razor
GB993526A (en) * 1960-06-27 1965-05-26 Johan Godefroy A dry shaver

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2246459A (en) * 1938-04-20 1941-06-17 Casco Products Corp Shaving machine
US2308920A (en) * 1939-02-23 1943-01-19 Hartford Nat Bank & Trust Co Hair cutting device
US2334254A (en) * 1940-01-20 1943-11-16 Groot Jan De Dry-shaving apparatus
US2396181A (en) * 1944-10-10 1946-03-05 Douglas Leigh Inc Electric razor
FR1058422A (fr) * 1952-06-16 1954-03-16 Rasoir perfectionné
US3028668A (en) * 1960-08-16 1962-04-10 Dechaux Charles Dry shaver with rocking cutter

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038747A (en) * 1973-09-27 1977-08-02 Upton Douglas J Electric razor having an oscillating cutting head
US5983501A (en) * 1997-04-02 1999-11-16 Izumi Products Company Electric shaver
US20080141537A1 (en) * 2005-01-12 2008-06-19 Tae-Jun Oh Net-Reciprocating Type Electric Razor
US20070084059A1 (en) * 2005-10-17 2007-04-19 Hannan Jeremiah Jerry M Oscillating triple head electric shaver
US20100275446A1 (en) * 2009-04-29 2010-11-04 Rovcal, Inc. Rotary electric shaver
US8397388B1 (en) * 2011-11-03 2013-03-19 Hy Steinberg Rotary shaver platform rotation system
US9789619B2 (en) 2013-04-30 2017-10-17 Hasam Eljaouhari Facial hair shaver with built-in facial hair pattern guides
US10668634B2 (en) * 2018-09-24 2020-06-02 Conair Corporation Oscillating rotary shaver

Also Published As

Publication number Publication date
BE643769A (ja)
GB994623A (en) 1965-06-10
DE1225992B (de) 1966-09-29
NL289014A (ja)

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