US3855697A - Shaving head for dry-shaving apparatus - Google Patents

Shaving head for dry-shaving apparatus Download PDF

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Publication number
US3855697A
US3855697A US00337090A US33709073A US3855697A US 3855697 A US3855697 A US 3855697A US 00337090 A US00337090 A US 00337090A US 33709073 A US33709073 A US 33709073A US 3855697 A US3855697 A US 3855697A
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US
United States
Prior art keywords
trimmer
cutter
shaving
shear plate
cutters
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
US00337090A
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English (en)
Inventor
G Meyer
L Buzzi
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US Philips Corp
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US Philips Corp
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Publication date
Application filed by US Philips Corp filed Critical US Philips Corp
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Publication of US3855697A publication Critical patent/US3855697A/en
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    • 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
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • 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
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B26B19/10—Cutting heads therefor; Cutters therefor; Securing equipment thereof involving two or more different types of reciprocating cutting elements, e.g. a pair of toothed shearing elements combined with a pair of perforated cutting elements or a combined toothed and perforated cutting assembly

Definitions

  • the invention relates to a shaving head for a dry shaving apparatus having reciprocable cutters associated with a shaving section and at least one trimmer, which cutters are pressed into resilient engagement with associated stationary shear plates or countercutters.
  • the reciprocable cutter of the shaving section is located on the side of the associated shear plate which faces away from the skin during use of the apparatus, and the reciprocable cutter of the trimmer is located on the side of the associated shear plate which faces towards the skin.
  • the drivable cutters for the shaving section and for the trimmers are constituted by a single elastic foil member, which is interposed between the shear plates of the trimmers and of the shaving action.
  • the shear plates of the trimmers are arranged on the frame of the shaving head, while the shear plate of the shaving section is accommodated on a support which can be readiy detached from the frame of the shaving head on which it is mounted.
  • the elastic foil member constituting the drivable cutters is pre-tensioned so that the cutters are resiliently pressed against the associated shear plates.
  • drivable cutter is characterized in that the reciprocable cutters for the shaving section and the trimmer are formed by separate members and are subject to the action of a spring device, which presses the two cutters apart and simultaneously causes them to engage with their associated stationary shear plate.
  • the two reciprocable cutters are coupled to the drive system of the dry-shaving apparatus so as to obtain a common reciprocating movement.
  • both the cutters and the spring device can be dimensioned for an optimum result. It suffices to provide a single spring device for bringing the reciprocable cutters into engagement with the associated shear plates.
  • the common drive of the two cutters ensures a smooth movement and consequently also a perfect engagement of the cutters with the shear plates.
  • Shaving heads are known in which the shear plate of the shaving section is formed by a shear foil and is arranged on a support which is pivoted to the frame of the shaving head and is retained in the operating position by a detachable locking device; such a shaving head can be readily cleaned in the opened condition, and the fixed connection of the individual parts thereof also ensures that these parts can only be re-assembled in the correct manner.
  • the channel-shaped shear plate of the trimmer itself forms the frame of the shaving head, it proves to be advantageous, for simply tilting the support away from the channel-shaped profile of the frame, when the support of the shear foils is pivoted to the frame by means of two arms and the carrier is hinged to the arms and the arms, in turn, to the frame.
  • the arms are simply formed by the legs of a U-shaped bracket, which has bent free ends extending parallel to its yoke, the bent free ends and the yoke of the bracket serving as a swivel axis, both for the support and for the bracket.
  • an actuating member has been provided for the coupling to the drive system for the dry-shaving apparatus, to which the drivable cutter of the trimmer is attached and against which the spring device cooperating with the drivable cutter of the shaving section rests.
  • the drivable cutter of the shaving section is arranged on said member so as to be movable in the direction of the force of the spring device and pivotable about an axis which is perpendicular to this direction and to the direction of the reciprocating movement of the cutter. In this manner, when viewed from the drive system, the drivable cutter and the spring device together with the actuating member form a unit which is reciprocated as a whole.
  • FIG. 1 is a longitudinal section of a shaving head in which the spring device is by a leaf spring;
  • FIG. 2 is a section taken through line IIlI of FIG.
  • FIG. 3 is a longitudinal section of a shaving head in which the spring device is constituted by two helical springs
  • FIG. 4 is a section taken along line IVIV of FIG. 3.
  • FIGS. 1 and 2 show a shaving head which comprises a shaving section 1 and a trimmer 2.
  • the shaving section 1 has an upper or counter-cutter or shear plate formed by a shear foil 3, one surface of which faces the skin during use of the dry-shaving apparatus.
  • a shear foil which is flexible as a whole, it would of course also be possible to mount a cutter which in itself is rigid.
  • a cutter 4 adapted to be driven in a reciprocating manner, is in engagement with the surface of the shearfoil which faces away from the skin, the cutter 4 being formed by an assembly of circuate blades.
  • a spring device 19 has been provided, which presses the two cutters 4 and 13 apart, and at the same time causes these cutters to engage the associated counter-cutters 3 and 10 of the shaving section and the trimmer respectively.
  • the spring device consists of a leaf spring 19, which with its center portion rests on two tabs 20 protruding from the cutter 13 of the trimmer, projections 21 provided on the tabs extending through the corresponding apertures in the leaf spring, thus defining the position of the leaf spring relative to the cutter 13.
  • the free ends of the leaf spring bear against the projections 22 provided on the two ends of the cutter 4 of the shaving section.
  • the leaf spring 19 acts between the two cutters 4 and 13 and presses them apart, thus causing the cutters to engage with the associated counter-cutters.
  • the leaf spring 19 is tensioned when the counter-cutter 3 of the shaving section is moved into the operating position, as will be described hereinafter.
  • the two cutters 4 and 13 of the shaving section and the trimmer respectively can be driven jointly by the drive system of the dry-shaving apparatus, thus ensuring a uniform motion.
  • two cutters 4 and 13 are each provided with two tabs which are offset with respect to each other relative to the longitudinal plane of symmetry, each tab 23 on the cutter 4 being arranged opposite a tab 24 on the cutter 13 and vice versa, so that the four tabs together form a channel, as indicated schematically in FIGS. 1 and 2 with dashed lines, which the free end 5 of a rocking arm of the drive system can engage. In this manner the two cutters can be made to reciprocate jointly and over the same distance.
  • the shaving head is mounted such taht, when the support 6 pivoted away from the frame of the shaving head, the cutter 13 can be placed on the counter-cutter 10 of the trimmer; next the ieaf spring 19 is arranged between the bridges 26 which connect the tabs 23 to the cutter 4, and the projections 22, and the spring is then positioned on the tabs 20 of the cutter 13. Finally, the support 6 is pivoted towards the frame of the shaving head, until the support is retained by the locking device 9, this shear foil pressing onto the cutter 4 cooperating with it, which the cutter is moved in the direction of the cutter 13 of the trimmer, so that the leaf spring 19 is tensioned.
  • a single spring device 19 brings the cutter 4 into engagement with the counter-cutter 3 and brings the cutter 13 of the trimmer into engagement with counter-cutter 10 of the trimmer.
  • FIGS. 3 and 4 show an embodiment of a shaving head having a shaving section 1 and two trimmers 2.
  • the drivable cutter 4 and the counter-cutter 3 of the shaving section are similar to those in the embodiment according to FIGS. 1 and 2.
  • the counter-cutter 10 of the two trimmers has the shape of a channel in crosssection transverse to the longitudinal axes, with bent longitudinal sides, each carrying a comb 11.
  • the channel defies a bottom part and upward extending side walls 30.
  • This counter-cutter 10 forms the frame of the shaving head, which is possible as a result of the great strength of such a profile.
  • the drivable cutter 13 of the two trimmers also has the shape of a channel with bent longitudinal sides each provided with a comb 14.
  • the channel of the cutter 13 extends within the channel of the counter-cutter 10 of the trimmer, the cutter and the counter cutter being in engagement with each other along the combs 11, 14 only which comprise the top edges of their respective side walls.
  • the drivable cutter 4 of the shaving section extends within the channel of the drivable cutter 13 of the trimmers. This results in a very compact construction, thus enabling the cutting faces of the shaving section and of the two trimmers to extend substantially in one plane, so that they can be put into operation at the same time.
  • the cutter 13 of the trimmers is mounted on a member 31, which is driven by the drive system of the dryshaving apparatus.
  • the cutter 13 is mounted on the member in such a way that the tabs 32 projecting from the bottom of the channel are pressed into recesses 33 in the member.
  • the cutter 4 of the shaving section is also mounted on the member, in such a manner that it is movable in a direction perpendicular to the countercutter 3 of the shaving section and that it can pivot about an imaginary axis which is perpendicular to said direction and to the direction of the reciprocating movement, so that this cutter can always fully engage with the counter-cutter. In this way the two cutters 4 and 13 together with the member 3 form a unit, which can be driven jointly by the drive system of the dryshaving apparatus.
  • hook-shaped resilient projections 34 are also mounted on the member 31.
  • said unit can be attached movably, though captively but per se detachably, to the counter-cutter 10, which forms the frame for the shaving head, because these projections 34 can be positioned so as to snap behind an opening 35 in the frame of the shaving head which serves for the passage of the drive system.
  • the spring device consists of two helical springs 36, which at one end rest against the member 31 at the other end against supports 37 connected with the cutter 4 of the shaving section.
  • the two springs which are mechanically arranged in parallel with each other, operate between the two cutters 4 and 13 of the shaving section and the trimmers respectively, causing them to engage with the associated counter-cutters. Since the helical springs 36 together with the unit consisting of the cutters 4 and 13 and the member 31 are jointly reciprocated by the drive system, they are not subject to bending stressed, so that they always press the cutters against the associated counter-cutters, which is important for an effective cutting action.
  • the counter-cutter of the shaving section for example a shear foil 3, is again arranged on a support 6, which via two arms 38 is pivoted, to the counter-cutter forming the frame of the shaving head, the support, in turn, being pivoted to the arms and the arms to the counter-cutter 10.
  • the arms 38 are formed by the legs of a U-shaped bracket, which has bent free ends 40 which extend in parallel with the yoke 39.
  • the yoke 39 is pivoted to the counter-cutter 10 by means of bent tabs 41 thereof.
  • the support 6 is pivoted to the free ends 40 by widening them by means of an upsetting operation, after they have been inserted in the corresponding apertures in the support.
  • the support can be pivoted so far relative to the frame of the shaving head, as shown in FIG. 4 by the dashed lines, that all the cutters, for example for cleaning purposes, are readily accessible.
  • the support can be locked in its operating or closed position on the frame of the shaving head by means of two latches 43, which can be moved so that tips 43a extend into aperture 6a in support 6, when the latches are urged by the action of an expanding spring 42.
  • the spring device formed by the two helical springs 36 is tensioned when the support 6 is brought into the operating position, i.e. the shear foil 3 presses the cutter 4 towards the frame of the shaving head, the combs 14 of the cutter 13 being simultaneously brought into engagement with the combs 1 1 of the counter-cutter 10 of the trimmer.
  • a single spring device again causes the drivable cutters of the shaving section as well as the trimmers to engage with the associated counter-cutters.
  • a shaving head for a dry shaving apparatus including a shaving section having a shaving shear plate and an adjacent and cooperating shaving cutter reciprocably movable along their common longitudinal axis, a trimmer having a trimmer shear plate and an adjacent and cooperating trimmer cutter reciprocally movable along their common longitudinal axis which is parallel to said shaver section axis, drive means coupled to both of said cutters to produce common reciprocal motion, the improvement in combination therewith, wherein said trimmer shear plate and trimmer cutter are channel-shaped in cross-section transverse of said longitudinal axes and are generally concentric, each channel defining a bottom part, side walls extending outward of the bottom part, and top edges of said walls with cutting combs defined on corresponding and adjacent top edges of the trimmers shear plate and cutter, and said shaver section is situated within said channel shape of said trimmer, with the shaver and trimmer cutters being spaced apart, the shaver shear plate being outward of the shaver cutter and
  • trimmer shear plate and cutter comprise a mating pair of elements
  • the shaving head further comprising a projection extending from one of said pair of elements, and a coresponding straight-line part extending longitudinally on the other of said pair, the projection being slidably engaged to said straight line part to ensure relative straight line motion between said elements.
  • said shear plate comprises a perforated foil
  • said shaving head further comprises a support means to which said foil is attached and which support means is pivotally secured to the frame.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
US00337090A 1972-03-01 1973-03-01 Shaving head for dry-shaving apparatus Expired - Lifetime US3855697A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT01697/72A AT313750B (de) 1972-03-01 1972-03-01 Scherkopf fuer trockenrasierapparate

Publications (1)

Publication Number Publication Date
US3855697A true US3855697A (en) 1974-12-24

Family

ID=3519032

Family Applications (1)

Application Number Title Priority Date Filing Date
US00337090A Expired - Lifetime US3855697A (en) 1972-03-01 1973-03-01 Shaving head for dry-shaving apparatus

Country Status (17)

Country Link
US (1) US3855697A (de)
JP (1) JPS559235B2 (de)
AR (1) AR198075A1 (de)
AT (1) AT313750B (de)
AU (1) AU5270473A (de)
BE (1) BE796037A (de)
BR (1) BR7301562D0 (de)
CA (1) CA969750A (de)
CH (1) CH561591A5 (de)
DE (1) DE2309342C2 (de)
ES (1) ES412122A1 (de)
FR (1) FR2174612A5 (de)
GB (1) GB1419314A (de)
IT (1) IT977897B (de)
NL (1) NL7302763A (de)
NO (1) NO130895C (de)
SE (1) SE373523B (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967374A (en) * 1974-04-25 1976-07-06 U.S. Philips Corporation Shaving head for a dry-shaving apparatus
DE2630395A1 (de) * 1975-07-12 1977-01-13 Matsushita Electric Works Ltd Elektrisches trockenrasiergeraet
US4110906A (en) * 1976-07-07 1978-09-05 U.S. Philips Corporation Shaving head for a dry-shaving apparatus
US4174568A (en) * 1977-05-03 1979-11-20 U.S. Philips Corporation Shaving head for dryshaving apparatus
US4393585A (en) * 1980-06-25 1983-07-19 U.S. Philips Corporation Dry-shaving apparatus with hair-trimming means
US4628606A (en) * 1984-08-02 1986-12-16 Braun Aktiengesellschaft Trimmer for dry shaver
US4922608A (en) * 1987-06-27 1990-05-08 Braun Aktiengesellschaft Shaving apparatus with a pivoted shearing head system
US6223438B1 (en) 1996-07-05 2001-05-01 Braun Gmbh Dry shaving apparatus
US6308414B1 (en) 1996-07-05 2001-10-30 Braun Gmbh Dry shaving apparatus
US20050172491A1 (en) * 2002-05-07 2005-08-11 Johannes Beugels Shaving apparatus with spring-mounted shaving head holder
US20060288581A1 (en) * 2003-08-27 2006-12-28 Koninklijke Philips Electronics, N.V. Shaving apparatus with a short-hair cutting device and a long-hair cutting device
US20070220756A1 (en) * 2002-10-08 2007-09-27 Royle Terence G Shaving system for performing multiple shaving actions
US20080216320A1 (en) * 2002-10-08 2008-09-11 Royle Terence G Shaving system for performing multiple shaving actions
US20120060382A1 (en) * 2009-05-28 2012-03-15 Koninklijke Philips Electronics N.V. Pivoting arrangement
US20150314461A1 (en) * 2014-05-02 2015-11-05 Raymond Industrial Ltd. Hybrid Shaving System

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8400037A (nl) * 1984-01-05 1985-08-01 Philips Nv Trimmer.
US11897418B2 (en) 2020-02-11 2024-02-13 Ccm Ip Llc System and method for deterrence of catalytic converter theft

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1380272A (en) * 1920-12-17 1921-05-31 Epifanio V N Tomasulo Automatic hair-cutting machine
US2195839A (en) * 1936-11-03 1940-04-02 Jacob L Kleinman Razor
US3421214A (en) * 1965-06-15 1969-01-14 Carinthia Elektrogeraete Gmbh Shaving head for a dry shaver having a plurality of cutting components
US3456341A (en) * 1966-08-12 1969-07-22 Carinthia Elektrogeraete Gmbh Cutter head for dry shaving apparatus
US3590482A (en) * 1969-06-06 1971-07-06 Sunbeam Corp Comb support and release mechanism for electric dry shaver
US3774300A (en) * 1968-07-22 1973-11-27 Philips Corp Cutter head for dry-shavers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT190832B (de) * 1955-03-18 1957-07-25 Paul Angst Haarschermaschine
AT272891B (de) * 1966-08-12 1969-07-25 Carinthia Elektrogeraete Ges M Abnehmbarer Scherkopf für Trockenrasierapparate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1380272A (en) * 1920-12-17 1921-05-31 Epifanio V N Tomasulo Automatic hair-cutting machine
US2195839A (en) * 1936-11-03 1940-04-02 Jacob L Kleinman Razor
US3421214A (en) * 1965-06-15 1969-01-14 Carinthia Elektrogeraete Gmbh Shaving head for a dry shaver having a plurality of cutting components
US3456341A (en) * 1966-08-12 1969-07-22 Carinthia Elektrogeraete Gmbh Cutter head for dry shaving apparatus
US3774300A (en) * 1968-07-22 1973-11-27 Philips Corp Cutter head for dry-shavers
US3590482A (en) * 1969-06-06 1971-07-06 Sunbeam Corp Comb support and release mechanism for electric dry shaver

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967374A (en) * 1974-04-25 1976-07-06 U.S. Philips Corporation Shaving head for a dry-shaving apparatus
DE2630395A1 (de) * 1975-07-12 1977-01-13 Matsushita Electric Works Ltd Elektrisches trockenrasiergeraet
US4110906A (en) * 1976-07-07 1978-09-05 U.S. Philips Corporation Shaving head for a dry-shaving apparatus
US4174568A (en) * 1977-05-03 1979-11-20 U.S. Philips Corporation Shaving head for dryshaving apparatus
US4393585A (en) * 1980-06-25 1983-07-19 U.S. Philips Corporation Dry-shaving apparatus with hair-trimming means
US4628606A (en) * 1984-08-02 1986-12-16 Braun Aktiengesellschaft Trimmer for dry shaver
US4922608A (en) * 1987-06-27 1990-05-08 Braun Aktiengesellschaft Shaving apparatus with a pivoted shearing head system
US20050097751A1 (en) * 1996-07-05 2005-05-12 Ray Parsonage Dry shaving apparatus
US6308414B1 (en) 1996-07-05 2001-10-30 Braun Gmbh Dry shaving apparatus
US6615492B2 (en) 1996-07-05 2003-09-09 Braun Gmbh Dry shaving apparatus
US6223438B1 (en) 1996-07-05 2001-05-01 Braun Gmbh Dry shaving apparatus
US7237339B2 (en) 1996-07-05 2007-07-03 Brann Gmbh Dry shaving apparatus
US20050172491A1 (en) * 2002-05-07 2005-08-11 Johannes Beugels Shaving apparatus with spring-mounted shaving head holder
US7472483B2 (en) * 2002-05-07 2009-01-06 Koninklijke Philips Electronics N.V. Shaving apparatus with spring-mounted shaving head holder
US20070220756A1 (en) * 2002-10-08 2007-09-27 Royle Terence G Shaving system for performing multiple shaving actions
US20080216320A1 (en) * 2002-10-08 2008-09-11 Royle Terence G Shaving system for performing multiple shaving actions
US8109001B2 (en) 2002-10-08 2012-02-07 The Gillette Company Shaving system for performing multiple shaving actions
US20060288581A1 (en) * 2003-08-27 2006-12-28 Koninklijke Philips Electronics, N.V. Shaving apparatus with a short-hair cutting device and a long-hair cutting device
US7690117B2 (en) * 2003-08-27 2010-04-06 Koninklijke Philips Electronics N.V. Shaving apparatus with a short-hair cutting device and a long-hair cutting device
US20120060382A1 (en) * 2009-05-28 2012-03-15 Koninklijke Philips Electronics N.V. Pivoting arrangement
US9676108B2 (en) * 2009-05-28 2017-06-13 Koninklijke Philips N.V. Pivoting arrangement
US20150314461A1 (en) * 2014-05-02 2015-11-05 Raymond Industrial Ltd. Hybrid Shaving System

Also Published As

Publication number Publication date
CA969750A (en) 1975-06-24
FR2174612A5 (de) 1973-10-12
ES412122A1 (es) 1976-01-01
NO130895C (de) 1975-03-05
BE796037A (fr) 1973-08-27
CH561591A5 (de) 1975-05-15
DE2309342A1 (de) 1973-09-13
AU5270473A (en) 1974-08-29
AR198075A1 (es) 1974-05-31
JPS559235B2 (de) 1980-03-08
BR7301562D0 (pt) 1974-05-16
AT313750B (de) 1974-01-15
IT977897B (it) 1974-09-20
SE373523B (sv) 1975-02-10
GB1419314A (en) 1975-12-31
NO130895B (de) 1974-11-25
NL7302763A (de) 1973-09-04
DE2309342C2 (de) 1984-02-09
JPS4898955A (de) 1973-12-15

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