US3724072A - Shearhead for dryshowers - Google Patents

Shearhead for dryshowers Download PDF

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Publication number
US3724072A
US3724072A US00134682A US3724072DA US3724072A US 3724072 A US3724072 A US 3724072A US 00134682 A US00134682 A US 00134682A US 3724072D A US3724072D A US 3724072DA US 3724072 A US3724072 A US 3724072A
Authority
US
United States
Prior art keywords
ribs
manufacture
mounting member
novel article
side faces
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
US00134682A
Other languages
English (en)
Inventor
W Messinger
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.)
Braun GmbH
Original Assignee
Braun GmbH
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 Braun GmbH filed Critical Braun GmbH
Application granted granted Critical
Publication of US3724072A publication Critical patent/US3724072A/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
    • B26B19/02—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
    • B26B19/044—Manufacture and assembly of cutter blocks

Definitions

  • the present invention relates generally to an article of manufacture, and more particularly to an improved shearhead construction for use in dryshavers.
  • cutter blade mounting member of the shearhead from synthetic plastic material, frequently from a glass fiber filled or glass fiber reinforced synthetic plastic material.
  • the purpose of utilizing such material, instead of metal which was originally employed, is to reduce the weight and therefore the oscillating mass of the shearhead and the resulting inertial forces as much as possible.
  • the cutter blades straddle the cutter blade mounting member as already pointed out, that is they surround the substantially hollow-cylindrical outer side of the cutter blade mounting member in direction transversely of the elongation thereof and have free edges which can cause difficulties. It must be understood that the cutter blades themselves are of substantially semi-circular configuration and that these free edges are located at the opposite ends of the cutter blades.
  • a concomitant object is to provide such an improved construction which is simple and inexpensive.
  • one feature of the invention resides briefly stated in an elongated mounting body having opposite lateral side faces and a plurality of cutter blades mounted on the mounting body straddling the same transversely of its elongation and having free edge portions which project laterally beyond the side faces. Ribs are provided on and laterally project from the respective side faces and each surround and embed the respective edge portions.
  • FIG. 1 is a perspective view illustrating a fragment of a shearhead embodying the present invention.
  • FIG. 2 is a fragmentary detail view on an enlarged scale, illustrating a further embodiment of the invention.
  • the cutter blade mounting member according to the present invention is of substantially semi-cylindrical hollow configuration. Of course, only a portion of the elongation is shown in FIG. 1, and the transversely extending end walls have been omitted for the sake of clarity. It will be appreciated, however, that the mounting member according to the present invention comprises two longitudinally extending lateral portions 1 and 2 and a longitudinally extending upper or center portion 3, all of them being of synthetic plastic material, which may or may not contain glass fibers.
  • the portions 1, 2, and 3 are all united by transversely extending end walls which are unitary with the opposite ends of the portions 1, 2 and 3. As pointed out before, these end walls have been omittedfor the sake of clarity and because they do not have a bearing upon the present inventive concept.
  • a plurality of substantially semi-circular cutter blades 4 is provided which straddle the mounting member transversely ,to the elongation thereof and which consist of a suitable blade of steel.
  • the lower edge portions 9 and 10 of the blades 4 project laterally beyond the outer lateral sides 5 and 6 of the portions 1 and 2, respectively, with the disadvantages which have been outlined in the introductory portion of the specification.
  • I provide a pair of ribs of which the rib 7 extends along the outer side 5 of the portion 1, whereas the rib 8 extends along the outer side 6 of the portion 2.
  • Each of these ribs embeds the lower free end portions 9 and 70,
  • the ribs 7 and 8 may be unitary (i.e., of one-piece with) the respective portions 1 and 2. They can, however, also be separate elements which are adhesively or otherwise secured to the portions 1 and 2. They may be each elongated and continuous, or, as FIG. 2 shows, they may be each provided in form of a plurality of segments 77 each of which may again be of one-piece with the respective lateral portion only 2 shown, or may be suitably secured thereto, but each of which segment 11 only embeds one edge portion 9 or 10, respectively. In other words, the ribs 7 and 8 may be discontinuous in longitudinal direction according to the embodiment of FIG. 2.
  • the ribs may be secured to the lateral portions if they are not of one-piece with them in various ways, by adhesive means, as pointed out before, but also by clamping, by pressing or the like.
  • a shearhead for dryshavers comprising an elongated mounting member having opposite lateral side faces; a plurality of cutter blades mounted on said mounting body straddling the same transversely of the elongation thereof and having free edge portions which project laterally beyond said side faces; and ribs provided on and laterally projecting from the respective side faces, each of said ribs surrounding and embedding respective ones of said edge portions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Treatment Of Fiber Materials (AREA)
US00134682A 1970-04-23 1971-04-16 Shearhead for dryshowers Expired - Lifetime US3724072A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19702019744 DE2019744A1 (de) 1970-04-23 1970-04-23 Messerblock fuer Trockenrasierapparate mit einem Tragkoerper aus Kunststoff
DE19702019745 DE2019745A1 (de) 1970-04-23 1970-04-23 Messerblock fuer Trockenrasierapparate mit einem Tragkoerper aus Kunststoff

Publications (1)

Publication Number Publication Date
US3724072A true US3724072A (en) 1973-04-03

Family

ID=25759008

Family Applications (2)

Application Number Title Priority Date Filing Date
US00134682A Expired - Lifetime US3724072A (en) 1970-04-23 1971-04-16 Shearhead for dryshowers
US00134681A Expired - Lifetime US3771842A (en) 1970-04-23 1971-04-16 Shaver construction

Family Applications After (1)

Application Number Title Priority Date Filing Date
US00134681A Expired - Lifetime US3771842A (en) 1970-04-23 1971-04-16 Shaver construction

Country Status (8)

Country Link
US (2) US3724072A (de)
AT (2) AT307267B (de)
BE (2) BE766211A (de)
CH (2) CH523119A (de)
DE (2) DE2019745A1 (de)
FR (2) FR2089828A5 (de)
GB (2) GB1287713A (de)
NL (2) NL7105229A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2532725A1 (de) * 1974-07-31 1976-02-12 Matsushita Electric Works Ltd Elektrisches trockenrasiergeraet
WO2004067235A1 (en) * 2003-01-31 2004-08-12 Koninklijke Philips Electronics N.V. Cutter unit for a shaver and shaver with a cutter

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909938A (en) * 1974-07-15 1975-10-07 Schick Inc Combined close shaving and long hair trimming head assembly for an electric shaver
JPS53125155A (en) * 1976-12-20 1978-11-01 Hitachi Maxell Ltd Receprocating electric razor
FR2575691B1 (fr) * 1985-01-09 1988-07-08 Seb Sa Couteaux pour rasoir a grille et support portant ces co uteaux, procede d'affutage et de montage de ces couteaux
DE3534166A1 (de) * 1985-09-25 1987-04-16 Braun Ag Messerblock fuer trockenrasierapparate

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3319333A (en) * 1960-01-30 1967-05-16 Ronson Corp Cutting head for a dry shaver

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1428602A1 (de) * 1964-07-23 1970-01-08 Gerd Kratz Trockenrasierapparat mit auf ein Antriebsgehaeuse mit Antrieb abnehmbar aufgesetztem Scherkopf
US3376642A (en) * 1965-08-27 1968-04-09 Liska Erich Cutter head for dry shavers
DE1703893A1 (de) * 1968-07-25 1971-10-07 Antretter Richard Messerkopf fuer Trockenrasierapparate
GB1310517A (en) * 1969-07-11 1973-03-21 Gillette Industries Ltd Dry shavers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3319333A (en) * 1960-01-30 1967-05-16 Ronson Corp Cutting head for a dry shaver

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2532725A1 (de) * 1974-07-31 1976-02-12 Matsushita Electric Works Ltd Elektrisches trockenrasiergeraet
DE2532725C2 (de) 1974-07-31 1984-01-19 Matsushita Electric Works, Ltd., Kadoma, Osaka Elektrisches Trockenrasiergerät
WO2004067235A1 (en) * 2003-01-31 2004-08-12 Koninklijke Philips Electronics N.V. Cutter unit for a shaver and shaver with a cutter
US20060156555A1 (en) * 2003-01-31 2006-07-20 Michael Janny Cutter unit for a shaver and shaver with a cutter

Also Published As

Publication number Publication date
FR2089828A5 (de) 1972-01-07
NL162007B (nl) 1979-11-15
BE766210A (fr) 1971-09-16
US3771842A (en) 1973-11-13
NL7105229A (de) 1971-10-26
GB1278393A (en) 1972-06-21
DE2019745A1 (de) 1971-11-04
NL162007C (nl) 1980-04-15
DE2019744A1 (de) 1971-11-04
AT307267B (de) 1973-05-10
FR2089829A5 (de) 1972-01-07
BE766211A (fr) 1971-09-16
CH523120A (de) 1972-05-31
GB1287713A (en) 1972-09-06
NL7105228A (de) 1971-10-26
AT319809B (de) 1975-01-10
CH523119A (de) 1972-05-31
DE2019744B2 (de) 1974-03-07

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