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US2900720A - Dry shaver with a self adjusting shear plate and rotary cutter - Google Patents

Dry shaver with a self adjusting shear plate and rotary cutter Download PDF

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Publication number
US2900720A
US2900720A US630824A US63082456A US2900720A US 2900720 A US2900720 A US 2900720A US 630824 A US630824 A US 630824A US 63082456 A US63082456 A US 63082456A US 2900720 A US2900720 A US 2900720A
Authority
US
United States
Prior art keywords
shear plate
cutting member
driving shaft
rotary cutter
dry 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 - Lifetime
Application number
US630824A
Other languages
English (en)
Inventor
Starre Gerrit
Bakker Eppe
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 US2900720A publication Critical patent/US2900720A/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
    • B26B19/14—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the rotary-cutter type; Cutting heads therefor; Cutters therefor
    • B26B19/145—Cutters being movable in the cutting head
    • 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
    • B26B19/14—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the rotary-cutter type; Cutting heads therefor; Cutters therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
    • F16D3/38—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another

Definitions

  • This invention relates to improvements in or relating to dry-shaving apparatus having a shear plate adapted to take up an inclined position with respect to the axis of the apparatus and a rotary cutting member co-operating with said plate.
  • this movable connection consists of a single thin spindle, the straight middle part of which is journalled in a groove formed in the end of the driving shaft, the straight ends of this spindle lying in a plane passing through the middle part so as to extend at right angles to this middle part and being journalled in the cutting member, while the parts connecting the straight ends to the middle part are spaced away from the driving shaft.
  • the user can determine the pressure between the shear plate and the cutting member, which latter'pressure must be greater for a person having a heavy beard than for a person having a light beard in order to ensure the optimum shaving efficiency.
  • This effect can also be achieved by means of a shaving head according to a prior suggestion, in which the cutting member is rigidly journalled and the shear plate is displaceable only in a direction parallel to itself.
  • theshear plate must be guided witha high degree of accuracy. Even with small deviations, the cutting member is likely. to catch in the shear plate and to rip it open.
  • the surface area'of the shear plate can be increased, since this plate is supported by the cutting member, so that the plate is less likely to sag or even break. It is also possible to arrange a number of plates concentrically with respect to one another, each plate being freeto adjust itself with respect to the remaining plates.
  • the cutting member is provided with an annular thickened portion having grooves formed in it; in which the straight ends of the thin spindle are journalled, 'aclosing cover being clamped over-the annular thickened portion.
  • Fig. 1 is a cross-sectional view of part of the dryshaving apparatus in accordance with the invention
  • Fig. 2 is a bottom plan-view of the cutting member and the thin spindle, the closing cover being removed, and
  • Fig. 3 shows a structural detail of the shear plate and the apparatus.
  • a shear plate 1 is arranged in the apparatus between annular stops 2 and 3 so as to be freely adjustable.
  • the stop 3 is provided with at least one rib 4 arranged in recesses 5 in the rim 6 of the shear plate 1, so that this shear plate is prevented from rotating about its axis.
  • Fig. 3 discloses two ribs 4 on opposite sides of the razor casing and arranged in recesses 5.
  • the shear plate 1 is prevented from rotational move ment about its axis by means of ribs 4 in recesses 5.
  • limited axial movement of the shear plate 1 is permitted between the stops 2 and 3.
  • the driving shaft 8 is rigidly journalled in the axial direction, so that the shear plate 1 is supported by the cutting member 7.
  • a dry shaver comprising a shear plate adapted to be positioned angularly relative to the axis of said shaver, a rotary cutting member co-acting with said shear plate and adjustable therewith, a driving shaft having a groove in one end thereof, means connecting said rotary cutting member to said driving shaft, said means including a sinuous spindle provided with a linear middle portion having part thereof in said groove, and straight end portions extending in the same plane as said middle portion and substantially at right angles thereto, said end portions'secured to said cutting member, and parts connecting said end portions to said middle portion spaced from and movable, a rotary cutting member co-acting with said shear plate, means preventing said shear plate from rotational movement but permitting limited axial movement thereof, means rigidly journalling said cutting mem- .4 ber in the axial direction whereby said shear plate is supported by said cutting member, 'a driving shaft havinga groove in one end thereof, means connecting said rotary cutting member to said driving shaft, said last mentioned means including
  • a dry shaver comprising a shear plate adapted to be positionedangularly. relative to the axis of said shaver and movable, a rotary cutting member co-acting with said shear plate, means rigidlyjournalling said cutting member in the axial'direction whereby said shear plate is supported by s'aidcutting member, a driving shaft having a groove in one end thereof, means connecting said rotary cutting member to said driving shaft, said last mentioned means including a sinuous spindle provided with a linear middle portion having part thereof in said groove, and straight end portions extending in the same plane as said middle portion and substantially at right angles thereto, said end portions secured to said cutting member, partsconnecting said end portion to said middle portion spaced from said driving shaft, said cutting member having an annular thickened portion with slots :therein, said straight end portions of said sinuous spindle in said slots, and a closing cover affixed to said annular thickened portion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Dry Shavers And Clippers (AREA)
US630824A 1956-01-17 1956-12-27 Dry shaver with a self adjusting shear plate and rotary cutter Expired - Lifetime US2900720A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL593309X 1956-01-17

Publications (1)

Publication Number Publication Date
US2900720A true US2900720A (en) 1959-08-25

Family

ID=19787691

Family Applications (1)

Application Number Title Priority Date Filing Date
US630824A Expired - Lifetime US2900720A (en) 1956-01-17 1956-12-27 Dry shaver with a self adjusting shear plate and rotary cutter

Country Status (8)

Country Link
US (1) US2900720A (de)
BE (1) BE554229A (de)
CA (1) CA593309A (de)
CH (1) CH351861A (de)
DE (1) DE1034512B (de)
FR (1) FR1164468A (de)
GB (1) GB859086A (de)
NL (1) NL91371C (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979819A (en) * 1959-12-08 1961-04-18 Jacob L Kleinman Cushioning shaving head units for shaving implements
US3715803A (en) * 1971-02-16 1973-02-13 T Tyler Rotary dry shaver with tiltable shear plates
US3844033A (en) * 1972-07-14 1974-10-29 Bissell Inc Rotary shaver with interlocking means to prevent shear plate rotation
US4001932A (en) * 1972-07-14 1977-01-11 Bissell Inc. Rotary shaver with shear plate rotation preventing means
US4077120A (en) * 1972-07-14 1978-03-07 Bissell, Inc. Dry shaver with floating peripherally supported shear plate
USRE30857E (en) * 1971-02-16 1982-02-02 Edwin E. Greigg Rotary dry shaver with tiltable shear plates
WO2003018272A1 (en) * 2001-08-23 2003-03-06 Koninklijke Philips Electronics N.V. System of two types of shaving apparatus
US6647626B2 (en) * 2000-08-11 2003-11-18 Izumi Products Company Electric rotary shaver
US20060260130A1 (en) * 2005-05-18 2006-11-23 Izumi Products Company Rotary electric shaver
US20220379504A1 (en) * 2019-11-19 2022-12-01 Koninklijke Philips N.V. A shaving unit and an electric shaver having the shaving unit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429354A (en) * 1966-02-07 1969-02-25 Celanese Corp Tire cord constructions and tires made therewith
GB1570462A (en) * 1977-01-17 1980-07-02 Remington Products Electric dry shavers
DE3843936C1 (de) * 1988-12-24 1990-05-31 Braun Ag, 6000 Frankfurt, De

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2119284A (en) * 1938-03-29 1938-05-31 Art Metal Works Inc Shaving mechanism
US2279682A (en) * 1938-03-31 1942-04-14 Jackson Jesse Atwater Shearing shaver
US2280052A (en) * 1938-02-26 1942-04-21 Casco Products Corp Shaving machine
US2341833A (en) * 1941-09-29 1944-02-15 Chris L Volz Shaving device
FR974147A (fr) * 1941-05-06 1951-02-19 Tête opérative à raser et à couper les cheveux
US2677884A (en) * 1948-12-29 1954-05-11 Richard & Ammann S A Rotary razor shear head
US2716278A (en) * 1953-04-01 1955-08-30 Rutherford E Thompson Electric razor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1088648A (fr) * 1953-09-10 1955-03-09 Rasoir électrique
DE956114C (de) * 1953-10-05 1957-01-10 Philips Nv Trockenrasierapparat mit durchlochter Scherplatte und Schneidorgan

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2280052A (en) * 1938-02-26 1942-04-21 Casco Products Corp Shaving machine
US2119284A (en) * 1938-03-29 1938-05-31 Art Metal Works Inc Shaving mechanism
US2279682A (en) * 1938-03-31 1942-04-14 Jackson Jesse Atwater Shearing shaver
FR974147A (fr) * 1941-05-06 1951-02-19 Tête opérative à raser et à couper les cheveux
US2341833A (en) * 1941-09-29 1944-02-15 Chris L Volz Shaving device
US2677884A (en) * 1948-12-29 1954-05-11 Richard & Ammann S A Rotary razor shear head
US2716278A (en) * 1953-04-01 1955-08-30 Rutherford E Thompson Electric razor

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979819A (en) * 1959-12-08 1961-04-18 Jacob L Kleinman Cushioning shaving head units for shaving implements
US3715803A (en) * 1971-02-16 1973-02-13 T Tyler Rotary dry shaver with tiltable shear plates
USRE30857E (en) * 1971-02-16 1982-02-02 Edwin E. Greigg Rotary dry shaver with tiltable shear plates
US3844033A (en) * 1972-07-14 1974-10-29 Bissell Inc Rotary shaver with interlocking means to prevent shear plate rotation
US4001932A (en) * 1972-07-14 1977-01-11 Bissell Inc. Rotary shaver with shear plate rotation preventing means
US4077120A (en) * 1972-07-14 1978-03-07 Bissell, Inc. Dry shaver with floating peripherally supported shear plate
US6647626B2 (en) * 2000-08-11 2003-11-18 Izumi Products Company Electric rotary shaver
WO2003018272A1 (en) * 2001-08-23 2003-03-06 Koninklijke Philips Electronics N.V. System of two types of shaving apparatus
US20040205969A1 (en) * 2001-08-23 2004-10-21 Sjoerd Haites System of two types of shaving apparatus
US20060260130A1 (en) * 2005-05-18 2006-11-23 Izumi Products Company Rotary electric shaver
US7370420B2 (en) * 2005-05-18 2008-05-13 Izumi Products Company Rotary electric shaver
US20220379504A1 (en) * 2019-11-19 2022-12-01 Koninklijke Philips N.V. A shaving unit and an electric shaver having the shaving unit

Also Published As

Publication number Publication date
DE1034512B (de) 1958-07-17
BE554229A (de)
NL91371C (de)
CH351861A (de) 1961-01-31
CA593309A (en) 1960-02-23
GB859086A (en) 1961-01-18
FR1164468A (fr) 1958-10-09

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