US3636626A - Dry shaver - Google Patents

Dry shaver Download PDF

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Publication number
US3636626A
US3636626A US852306A US3636626DA US3636626A US 3636626 A US3636626 A US 3636626A US 852306 A US852306 A US 852306A US 3636626D A US3636626D A US 3636626DA US 3636626 A US3636626 A US 3636626A
Authority
US
United States
Prior art keywords
shear
casing
shear plate
cutter
plates
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
US852306A
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English (en)
Inventor
Frans Zuurveen
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
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 US3636626A publication Critical patent/US3636626A/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

Definitions

  • the invention relates to a dryshaving apparatus having a casing with a longitudinal axis, a single driving shaft, and at least two depressible shaving heads which are actuated by the driving shaft and are positioned successively adjacent in a transverse direction to the axis, each shaving head comprising a shear plate which is provided with hair passage apertures and is defined in cross section by two, spaced U-shaped parts, a cooperating cutter member which is arranged to be driven and is resiliently maintained in engagement with the respective shear plate, while the shear plates are coupled to each other and are displaceable upward to their extreme raised positions and downward to their depressed positions.
  • Each user of a dry-shaving apparatus occasionally tends to depress the depressible shaving heads as far as possible.
  • the shaving heads are liable to become relatively disarranged, which may give rise to the possibility of injury to the user.
  • shear plates are coupled when in their extreme depressed positions.
  • An embodiment is characterized in that the shear plate of a shaving head is movable axially and substantially vertically with respect to the shear plate of one of the adjoining shaving heads; this movement is between two stops which are spaced axially and are provided on one lateral wall of each pair of adjacent surfaces of the respective adjoining shear plates.
  • a lateral wall of a shear plate of a shaving head is provided with circumferentially spaced slots with studs provided on the adjoining lateral wall of the shear plate of the respective adjoining shaving head, the studs being slidingly and fittingly displaceable relative to said slots.
  • a relative rotary movement of the shaving heads is prevented.
  • An additional advantage of the invention consists in its property that the shaving heads when pressed against the parts of the face to be shaved are capable of adapting themselves to the various shapes of these parts in a manner such that during shaving a large part of the shear plates are in continuous engagement with these parts.
  • This property of the invention is characterized in that the shaving heads in their extreme raised positions are spaced from one another successively upwardly and in their extreme depressedpositions are spaced from one another successively downwardly while in the extreme raised position the centrally situated shaving head is spaced from a motor actuating the apparatus by the greatest distance and in the extreme depressed position the outermost shaving head occupies this remotest position.
  • FIG. 1 is a fragmentary sectional view of the invention
  • FIGS. 2 and 3 show schematically and in detail the coupling between the shear plates
  • FIG. 4 is a perspective view of a spring system to be used
  • FIG. 5 is a schematic elevation of two positions which the shaving heads may occupy with respect to one another.
  • a holder 1 which embraces a group of depressible shaving heads 2, 3, 4 and 5 which are actuated by a driving shaft 6.
  • a lower part 7 of noncircular cross section of the driving shaft 6 is coupled with a motor drive shaft 8 for rotary motion.
  • Each of the shaving heads 2, 3, 4 and 5 comprises a cutter member 9, 10, 11 and 12 which consists of a blade-carrying holder part l3, l4, l5 and 16 which is provided with at least one blade arm l7, 18, 19 and 20, respectively.
  • the cutter members of the outer shaving heads usually comprise a greater number of blade arms than the cutter members of the central shaving heads.
  • Each shaving head 2, 3, 4 and 5 also comprises a shear plate 21, 22, 23 and 24, respectively, which is provided with hair passage apertures and has in cross section, two spaced substantially U-shaped parts.
  • the shear plates 21, 22 and 23 are each movably arranged between two stops which are spaced from one another in the axial direction and which are provided on one lateral wall of each pair of adjoining shaving heads 22, 23 and 24, respectively, the outermost shear plate being arranged so as to be movable upward and downward in the axial direction between two stops provided on the inner wall of the holder 1.
  • each spring may consist of a spring system 31 which comprises at least three parallel-operating leaf-springs 30 (FIG. 4).
  • a spring system provides the advantage that in the case of a comparativelyslight depression a comparatively slight increase of the thrust force to be exerted by the spring system 31 is obtainable.
  • the driving shaft 6 is resiliently arranged by means of a helical spring 33 surrounding a middle part 32 of this shaft '6.
  • This helical spring 33 exerts a thrust force upon the free upper end of the motor-coupling shaft 8 and upon the lower surface of the coupling pin 25.
  • the upper surface 34 of the coupling pin 25 is urged against the lower surface of the central shear plate 21.
  • the coupling pin 25 passes with a certain amount of clearance through central apertures provided in the blade-carrying holder parts 13, 14, 15 and 16 of the cutter members 9, 10, 11 and 12, respectively.
  • a lateral wall 35 (FIG. 2) of a shear plate of a shaving head is provided with slots 36 which are circumferentially spaced and extend substantially axially, and in which studs 38 provided on the adjoining lateral wall (FIG. 3) of the shear plate of the respective adjoining shaving head are displaceable axially with a sliding fit, while the inner wall part of the holder 1 at the level of the outermost shaving head 5 is designed substantially as the other, nonadjoining lateral wall of the shear plate 24 of this shaving head 5.
  • the shaving heads shown in FIG. l are disposed concentrically about one another.
  • the invention is not restricted to such an embodiment provided with a rotary drive.
  • the invention may also be applied to shaving apparatuses provided with a reciprocating drive.
  • a dry shaver including a casing with upper and lower parts along a longitudinal axis, a single drive shaft, and at least two concentric shaving heads, each shaving head comprising a shear plate which has hair-receiving apertures and is mounted in the casing for axial movement upward to its top position and downward to its depressed position, and a cutter associated with each plate and driven by the drive shaft, the shaver further including a plurality of series-operating springs, one engaging and urging each cutter upward into resilient engagement with its corresponding shear plate which is urged thereby to its top position, the casing restraining the first shear plate in its top and depressed positions, the remaining shear plates being successively adjacent to the first and successively coupled together for restraining each shear plate in its respective top and depressed positions.
  • a dry shaver including a casing having top and bottom parts, a single central drive shaft having first and second parts, first and second concentric cutters driven by said first part of the shaft, first and second concentric shear plates with hairreceiving apertures, one associated with each of the corresponding cutters, and each mounted in the casing for axial movement upward to a top position and downward to a depressed position, a first spring between said second part of the shaft and the first cutter urging same and its associated shear plate upward, a second compressed spring between the cutters urging adjacent cutters and their associated shear plates axially apart, the casing further comprising axially spaced stop means for limiting the first shear plate between top and depressed positions, and further stop means between adjacent shear plates for limiting axial movement of each relative to the other between top and depressed positions.
  • Apparatus according to claim 1 wherein the first shear plate is most remote from the central axis and one spring of said spring system extends between a part of the casing and the lower surface of the cutter associated with this first shear plate, and all the cutters are successively adjacent, and another spring of said spring system is disposed between each pair of adjacent cutters.
  • Apparatus according to claim 1 wherein the casing and the first shear plate have one edge each of a pair of adjacent edges, and each two, adjacent shear plates have one edge each of a pair of adjacent edges, and said means for coupling the shear plates comprises a pair of axially spaced stops on one of each of said pairs of edges and an element movable between said stops on the other of each of said pairs of edges.
  • a dry shaver including a casing with upper and lower parts along a longitudinal axis, a single drive shaft, and at least two shaving heads, each shaving head comprising a shear plate which has hair-receiving apertures and is mounted in the casing for axial movement upward to its top position and downward to its depressed position, and a cutter associated with each plate and driven by the drive shaft, the shaver further including a plurality of series-operating springs, one engaging and urging each cutter upward into resilient engagement with its corresponding shear plate which is urged thereby to its top position, the casing restraining the first shear plate in its top and depressed positions, the remaining shear plates being successively adjacent to the first and successively coupled together for restraining each shear plate in its respective top and depressed positions.
  • a dry shaver including a casing with a single drive shaft having a coupling part and a drive part and at least two axially spaced cutters driven by said drive part of the shaft, shear plates with hair-receiving apertures, one associated with each cutter and mounted in the casing for axial movement upward to its top position and downward to its depressed position, a first spring between the coupling part of the shaft and one cutter, urging same and its associated shear plate upward, another spring between each two adjacent cutters urging them and their associated shear plates axially apart and means for coupling all the shear plates successively together and to the housing for restraining these plates in their respective top and depressed positions.
  • a dry shaver including a casing with upper and lower parts along a longitudinal axis, a single drive shaft, and at least two concentric shaving heads, each shaving head comprising a shear plate which has hair-receiving apertures and is mounted in the casing for axial movement upward to its top position and depression to its bottom position, and a cutter associated with each plate and driven by the drive shaft, the shaver further including a spring system comprising a plurality of sefies-connected s rings, one engaging1 and urging each cutter upward into resr rent engagement wit its corresponding shear plate which is urged to its top position, the casing restraining the first shear plate in its top position, the remaining shear plates being successively adjacent to the first and successively coupled together for restraining each shear plate in its respective top position.
  • each spring comprises an arrangement of three parallel-connected leaf springs.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
US852306A 1968-08-31 1969-08-22 Dry shaver Expired - Lifetime US3636626A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6812448A NL6812448A (de) 1968-08-31 1968-08-31

Publications (1)

Publication Number Publication Date
US3636626A true US3636626A (en) 1972-01-25

Family

ID=19804514

Family Applications (1)

Application Number Title Priority Date Filing Date
US852306A Expired - Lifetime US3636626A (en) 1968-08-31 1969-08-22 Dry shaver

Country Status (5)

Country Link
US (1) US3636626A (de)
DE (1) DE1942106A1 (de)
FR (1) FR2017136A1 (de)
GB (1) GB1281836A (de)
NL (1) NL6812448A (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0544065A1 (de) * 1991-11-26 1993-06-02 Matsushita Electric Works, Ltd. Rotations-Trockenrasierer
US5329702A (en) * 1992-04-17 1994-07-19 Izumi Products Company Electric razor
WO2004012914A1 (en) * 2002-07-29 2004-02-12 Koninklijke Philips Electronics N.V. Shaving apparatus
WO2006048798A1 (en) 2004-11-01 2006-05-11 Koninklijke Philips Electronics N.V. Cutter unit for a rotary shaver, method for making such a unit and rotary shaver provided therewith
US20080016690A1 (en) * 2004-06-21 2008-01-24 Koninklijke Philips Electronics N.V. Shaving Apparatus
EP1914045A1 (de) * 2006-10-18 2008-04-23 Izumi Products Company Elektrischer Rotationsrasierapparat
EP1927441A1 (de) * 2006-11-28 2008-06-04 Koninklijke Philips Electronics N.V. Kappe mit Komfortprofil zur Anwendung im Rasierkopf eines Rasierapparates
NL1036819C2 (nl) * 2009-04-06 2010-10-07 R N Machb B V Scheerkop en scheerapparaat voorzien van een dergelijke scheerkop.
US20120110853A1 (en) * 2010-11-08 2012-05-10 Izumi Products Company Rotary electric shaver and manufacturing method of outer cutter and inner cutter of the same
CN102729265A (zh) * 2011-04-14 2012-10-17 上海奔腾电工有限公司 具有大圆弧连续四刀无缝旋转式剃须刀刀头***
US20130333220A1 (en) * 2004-06-21 2013-12-19 Koninklijke Philips N.V. Shaving apparatus
CN107972075A (zh) * 2017-12-20 2018-05-01 九江喜悦电器科技有限公司 浮动刀头及剃须刀

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2526153A (en) * 1946-11-20 1950-10-17 Herbert E Page Multihead dry shaver
GB784909A (en) * 1955-02-24 1957-10-16 Willem Bakker Dry shaver
US3136055A (en) * 1959-08-24 1964-06-09 Kobler Victor Dry shavers having shearheads arranged at different levels
US3233323A (en) * 1962-03-20 1966-02-08 Philips Corp Electric shaver with selective depression of the vertically adjustable shear plate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2526153A (en) * 1946-11-20 1950-10-17 Herbert E Page Multihead dry shaver
GB784909A (en) * 1955-02-24 1957-10-16 Willem Bakker Dry shaver
US3136055A (en) * 1959-08-24 1964-06-09 Kobler Victor Dry shavers having shearheads arranged at different levels
US3233323A (en) * 1962-03-20 1966-02-08 Philips Corp Electric shaver with selective depression of the vertically adjustable shear plate

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0544065A1 (de) * 1991-11-26 1993-06-02 Matsushita Electric Works, Ltd. Rotations-Trockenrasierer
US5283953A (en) * 1991-11-26 1994-02-08 Matsushita Electric Works, Ltd. Rotary dry shaver
US5329702A (en) * 1992-04-17 1994-07-19 Izumi Products Company Electric razor
US20050257376A1 (en) * 2002-07-29 2005-11-24 Koninklijke Philips Electronics N. V. Shaving apparatus
WO2004012914A1 (en) * 2002-07-29 2004-02-12 Koninklijke Philips Electronics N.V. Shaving apparatus
US7698819B2 (en) 2002-07-29 2010-04-20 Koninklijke Philips Electronics N.V. Shaving apparatus
US20080016690A1 (en) * 2004-06-21 2008-01-24 Koninklijke Philips Electronics N.V. Shaving Apparatus
US20130333220A1 (en) * 2004-06-21 2013-12-19 Koninklijke Philips N.V. Shaving apparatus
US8191264B2 (en) * 2004-06-21 2012-06-05 Koninklijke Philips Electronics N.V. Shaving apparatus
WO2006048798A1 (en) 2004-11-01 2006-05-11 Koninklijke Philips Electronics N.V. Cutter unit for a rotary shaver, method for making such a unit and rotary shaver provided therewith
US8307740B2 (en) 2004-11-01 2012-11-13 Koninklijke Philips Electronics N.V. Cutter unit for a rotary shaver, method for making such a unit and rotary shaver provided therewith
US20090019703A1 (en) * 2004-11-01 2009-01-22 Koninklijke Philips Electronics N.V. Cutter unit for a rotary shaver, method for making such a unit and rotary shaver provided therewith
CN101237967B (zh) * 2004-11-01 2010-05-12 皇家飞利浦电子股份有限公司 旋转剃须刀的刀具单元、制造该单元的方法及由其配备的旋转剃须刀
US7845078B2 (en) 2006-10-18 2010-12-07 Izumi Products Company Rotary electric shaver
EP1914045A1 (de) * 2006-10-18 2008-04-23 Izumi Products Company Elektrischer Rotationsrasierapparat
US20080092392A1 (en) * 2006-10-18 2008-04-24 Izumi Products Company Rotary electric shaver
JP2010510823A (ja) * 2006-11-28 2010-04-08 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ シェービング装置のシェービングヘッドに適用されることが意図される快適プロファイルを有するキャップ
CN101541485B (zh) * 2006-11-28 2011-07-20 皇家飞利浦电子股份有限公司 用于在剃须装置的剃须头中应用的具有舒适轮廓的盖体
US20100139098A1 (en) * 2006-11-28 2010-06-10 Koninklijke Philips Electronics N.V. Cap having a comfort profile, which is intended to be applied in a shaving head of a shaving appratus
WO2008065582A1 (en) 2006-11-28 2008-06-05 Koninklijke Philips Electronics N.V. Cap having a comfort profile, which is intended to be applied in a shaving head of a shaving apparatus
EP1927441A1 (de) * 2006-11-28 2008-06-04 Koninklijke Philips Electronics N.V. Kappe mit Komfortprofil zur Anwendung im Rasierkopf eines Rasierapparates
US9409301B2 (en) 2006-11-28 2016-08-09 Koninklijke Philips N.V. Cap with multi-angle annular corrugation surfaces for shaving apparatus
NL1036819C2 (nl) * 2009-04-06 2010-10-07 R N Machb B V Scheerkop en scheerapparaat voorzien van een dergelijke scheerkop.
US20120110853A1 (en) * 2010-11-08 2012-05-10 Izumi Products Company Rotary electric shaver and manufacturing method of outer cutter and inner cutter of the same
CN102729265A (zh) * 2011-04-14 2012-10-17 上海奔腾电工有限公司 具有大圆弧连续四刀无缝旋转式剃须刀刀头***
CN102729265B (zh) * 2011-04-14 2015-01-28 上海奔腾电工有限公司 具有大圆弧连续四刀无缝旋转式剃须刀刀头***
CN107972075A (zh) * 2017-12-20 2018-05-01 九江喜悦电器科技有限公司 浮动刀头及剃须刀

Also Published As

Publication number Publication date
NL6812448A (de) 1970-03-03
GB1281836A (en) 1972-07-19
FR2017136A1 (de) 1970-05-15
DE1942106A1 (de) 1970-03-05

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