US3447241A - Shutter for an electric razor having a cleaning function - Google Patents

Shutter for an electric razor having a cleaning function Download PDF

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Publication number
US3447241A
US3447241A US697134A US3447241DA US3447241A US 3447241 A US3447241 A US 3447241A US 697134 A US697134 A US 697134A US 3447241D A US3447241D A US 3447241DA US 3447241 A US3447241 A US 3447241A
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US
United States
Prior art keywords
shutter
shearing
electric razor
cutter block
sheet
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
US697134A
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English (en)
Inventor
Ernst Moeckl
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Individual
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Individual
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Publication date
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Publication of US3447241A publication Critical patent/US3447241A/en
Anticipated expiration legal-status Critical
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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
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/3806—Accessories
    • B26B19/382—Built-in accessories
    • 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

Definitions

  • a shutter covers and exposes, respectively, the shearing cutter block and cleans the shaving sheet.
  • a shearing head is disposed within a shutter guide.
  • a spring-biased snap-rest lock arrests the shutter in its shutter closing position.
  • the snap-rest lock comprises a bending rod spring arrangement, and the latter is fixed to the shutter guide.
  • the present invention relates to a shutter for an electric razor having a shearing cutter block, which is by example, pendulum-driven, and having a shearing sheet as well as shutter, to cover and expose, respectively, the shearing unit.
  • a special spring namely, a bending rod spring with snapping eflfect.
  • the snap rest or, respectively, the dome for the additional rest spring is disposed within the range of the center section of the shutter U-profile.
  • FIGS. 1 and 2 are axial cross sections of the electric razor, FIG. 1 indicating the closing position and FIG. 2 a ready position of the shutter;
  • FIGS. 3 and 4 are elevations, partly broken away, indicating the shutter closing position in FIG. 3 and the razor ready position in FIG. 4;
  • FIG. 5 is a cross section of a cutter blade.
  • a shearing head 1a of a case 1 of the razor unit encloses a pendulum 2 which is provided with a pendulum mushroom 2a.
  • the latter reciprocates by an electromotoric force, while moving in a shearing action the shearing cutter block 3 in the direction A or B, respectively.
  • the stationary part of the shearing mechanism is the strainer-shaped shearing sheet 4, of which one fixed end 4a is gripped clamplike by an outer leg 5a and an inner leg 5b of the shutter 5 guided in grooves N, whereas the other end 4b is supported slidably at the shearing head 1a.
  • a coupling ring 6, having opposed pivots 6a, is biased by a helical spring 7, so that the shearing cutter block 3 may move aside in the direction C, when the inner leg 5b of the shutter 5 is moved into the gap between the shearing sheet 4 and the shearing cutter block 3.
  • the two legs 5a, 5b of the shutter are provided equally, externally with cross ripples P and R, whereas the inner side of the inner leg 5b is fitted with circumferential ripples S.
  • ripples S are adjusted to the spacings of the cutting blades of the shearing cutter block 3.
  • a set-01f M, a cam 1b of the shearing head 1a, and a cam 8a of a bending rod spring 8 are elements of the snap rest locks.
  • the snap lock M, 112 (FIG. 2) is unlocked.
  • the inner leg 5b is slid into the gap between the shearing cutter block 3 and shearing cutter sheet 4.
  • the shearing cutter block 3 and the coupling ring 6 slide then in the direction C.
  • the shearing sheet 4 also yields to the guiding action exerted by the outer leg 5a of the shutter.
  • the snap lock M and the cam 8a assumes a locking position as soon as the shutter has reached the shutter closing position (FIGS. 1 and 3).
  • the above-described embodiment brings about forcibly the complete cleaning of the cutting edges or blades of the shearing cutter block 3 and also of the inner side of the shearing sheet 4, and this is accomplished by a combination of the outer leg 5a serving as a protective shutter and the inner leg 5b serving as a cleaning shutter. Since the outer leg 5a of the shutter is slid over the shearing sheet 4 after shaving and is retracted again before shaving, upon enforced joining of the rod spring 8 acting as a cleaning stripper, there is accomplished the cleaning of the shearing system in two directions. The hair particles, which during the shaving fall downwardly through the freely extending shearing cutters of the shearing cutter block, are collected within the range of area X.
  • the debris removed from the cutters of the shearing cutter block 3 by a cleaning material such as polyvinyl-chloride, polyamide, silicon-resin, tetrafluorethylene or the like, which is collected during the reciprocation of the legs 5b likewise on this area.
  • the cleaning stripper 8 designed as a leaf spring, strips off at the point 8a, residuals that cling to the inner side of the inner leg 5b or cleaning shutter 5 and which residuals also fall into the range X.
  • the shearing head is laterally provided with large openings Z which may be blown through. Hence, the shearing head must be removed only if parts are to be replaced, or if a thorough overall cleansing with fluid cleaning agents is to be performed.
  • the shearing sheet 4 When the shutter with the stripper area is slid over the shearing head, the shearing sheet 4 is shifted somewhat lower in its cutting range, and for this purpose it is guided slidably onone side. Through the sliding in of the inner leg 5b or cleaning shutter 5 between the shearing sheet 4 and the cutter block 3, the latter is shifted downward and thereby uncoupled from the driving pivot. In this position it is possible, for instance, to operate the long-hair cutter, arranged laterally, even with completely covered shearing sheet and stationary cutter block.
  • the coupling may be designed, for instance, according to FIGS. 1 and 2.
  • This coupling has the further advantage, that with stronger pressure on the shearing area during shaving, the cutter movement is reduced and irritations of the skin are thus avoided.
  • the cleaning effect of the electric razor is further augmented if the cutters or blades, respectively, of the cutter block are stratified with a dirt-rejecting synthetic resin, as skins 3a in FIG. 5, as with Teflon, ultramide, polyvinylchloride, polyamide, silicon-resin, tetrafluorethylene or the like.
  • An electric razor comprising a shearing head
  • a shearing sheet operatively mounted on said shearing head and covering said shearing cutter block
  • said shutter slidably disposed on said shearing sheet covering and exposing, respectively, said shearing cutter block, said shutter has a substantially U-shaped cross section which includes an inner leg and an outer leg, said shearing sheet and said shearing cutter block define a gap, and said inner leg is guided slidably as a tongue in said gap;
  • said pendulum means includes a pendulum and a coupling disposed between the pendulum and said shearing cutter block and comprising a frustoconically shaped pendulum mushroom disposed on said pendulum,
  • a coupling ring movably disposed about said pendulum and having a frustoconically shaped seating surface operatively complementary to said pendulum mushroom,
  • said coupling ring is centered in said shearing cutter block and defines a play between said pendulum and said coupling ring.
  • said finer scale ripples of said inner leg are adjacent said cutting blades in said shutter closing position and are spaced relative said cutting blades to constitute a cleaning shutter and cutter guides for said cutting blades.
  • said leaf spring comprises an elastic metal strip extending over substantially the entire width of said inner leg of said shutter and presses against said interior surface of said inner leg during sliding movement of the latter constituting a cleaning stripper for said interior surface of said inner leg.
  • said outer leg is slidably guided in said shutter guide groove.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
US697134A 1967-01-13 1968-01-11 Shutter for an electric razor having a cleaning function Expired - Lifetime US3447241A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM0057518 1967-01-13

Publications (1)

Publication Number Publication Date
US3447241A true US3447241A (en) 1969-06-03

Family

ID=7308925

Family Applications (1)

Application Number Title Priority Date Filing Date
US697134A Expired - Lifetime US3447241A (en) 1967-01-13 1968-01-11 Shutter for an electric razor having a cleaning function

Country Status (3)

Country Link
US (1) US3447241A (de)
CH (1) CH480146A (de)
GB (1) GB1161546A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911573A (en) * 1972-09-30 1975-10-14 Krups Robert Dry shaver
US5390415A (en) * 1993-01-08 1995-02-21 Izumi Products Company Electric razor
US20080016690A1 (en) * 2004-06-21 2008-01-24 Koninklijke Philips Electronics N.V. Shaving Apparatus
US20210347074A1 (en) * 2018-10-23 2021-11-11 Koninklijke Philips N.V. Hand-held appliance with improved coupling structure for a functional attachment of the appliance

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS567245Y2 (de) * 1974-05-02 1981-02-17

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1777829A (en) * 1928-10-29 1930-10-07 Joshua C Edgecumbe Tool clutch
US2270800A (en) * 1938-01-15 1942-01-20 Corydon M Johnson Razor
US2457367A (en) * 1943-10-13 1948-12-28 Joy Mfg Co Axially engaging friction clutch
US2691216A (en) * 1952-06-03 1954-10-12 Remington Rand Inc Shaver head guard
US2787830A (en) * 1954-11-19 1957-04-09 Schick Inc Shaving device and rotatable guard means therefor
US2804957A (en) * 1954-07-22 1957-09-03 Jr Rene G Pechin Clutch element for starting devices for gasoline engines
US2811774A (en) * 1955-02-10 1957-11-05 Schick Inc Electric shaver and protective housing therefor
US2852115A (en) * 1953-03-02 1958-09-16 Union Machine Company Power drive for rotary tools
DE1122410B (de) * 1960-09-05 1962-01-18 Ernst Moeckl Kappe fuer Scherkoepfe von elektrischen Rasierapparaten
US3076108A (en) * 1956-10-15 1963-01-29 Oliver Pell Control Ltd Vibratory electric motor
US3138866A (en) * 1961-06-14 1964-06-30 Ressler Lloyd Electric razor with a shear plate having different types of shearing sections movable into shearing position
US3143796A (en) * 1963-02-08 1964-08-11 Ronson Corp Electric head construction with movable slide cover

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1777829A (en) * 1928-10-29 1930-10-07 Joshua C Edgecumbe Tool clutch
US2270800A (en) * 1938-01-15 1942-01-20 Corydon M Johnson Razor
US2457367A (en) * 1943-10-13 1948-12-28 Joy Mfg Co Axially engaging friction clutch
US2691216A (en) * 1952-06-03 1954-10-12 Remington Rand Inc Shaver head guard
US2852115A (en) * 1953-03-02 1958-09-16 Union Machine Company Power drive for rotary tools
US2804957A (en) * 1954-07-22 1957-09-03 Jr Rene G Pechin Clutch element for starting devices for gasoline engines
US2787830A (en) * 1954-11-19 1957-04-09 Schick Inc Shaving device and rotatable guard means therefor
US2811774A (en) * 1955-02-10 1957-11-05 Schick Inc Electric shaver and protective housing therefor
US3076108A (en) * 1956-10-15 1963-01-29 Oliver Pell Control Ltd Vibratory electric motor
DE1122410B (de) * 1960-09-05 1962-01-18 Ernst Moeckl Kappe fuer Scherkoepfe von elektrischen Rasierapparaten
US3138866A (en) * 1961-06-14 1964-06-30 Ressler Lloyd Electric razor with a shear plate having different types of shearing sections movable into shearing position
US3143796A (en) * 1963-02-08 1964-08-11 Ronson Corp Electric head construction with movable slide cover

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911573A (en) * 1972-09-30 1975-10-14 Krups Robert Dry shaver
US5390415A (en) * 1993-01-08 1995-02-21 Izumi Products Company Electric razor
US20080016690A1 (en) * 2004-06-21 2008-01-24 Koninklijke Philips Electronics N.V. Shaving Apparatus
US8191264B2 (en) * 2004-06-21 2012-06-05 Koninklijke Philips Electronics N.V. Shaving apparatus
US20210347074A1 (en) * 2018-10-23 2021-11-11 Koninklijke Philips N.V. Hand-held appliance with improved coupling structure for a functional attachment of the appliance
US11833699B2 (en) * 2018-10-23 2023-12-05 Koninklijke Philips N.V. Hand-held appliance with improved coupling structure for a functional attachment of the appliance

Also Published As

Publication number Publication date
CH480146A (de) 1969-10-31
GB1161546A (en) 1969-08-13

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