US2694251A - Electric shaver - Google Patents

Electric shaver Download PDF

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Publication number
US2694251A
US2694251A US281095A US28109552A US2694251A US 2694251 A US2694251 A US 2694251A US 281095 A US281095 A US 281095A US 28109552 A US28109552 A US 28109552A US 2694251 A US2694251 A US 2694251A
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US
United States
Prior art keywords
plate
lever
oscillation
guard
housing
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
US281095A
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English (en)
Inventor
Tissot-Dupont Bernard
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Individual
Original Assignee
Individual
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Filing date
Publication date
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Application granted granted Critical
Publication of US2694251A publication Critical patent/US2694251A/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

Definitions

  • This invention relates to a dry shaver of the type comprising a series of cutting members or blades which are reciprocated back and forth and co-operate with the inner face of a perforated guard plate, said cutting members being driven from a blade carrier or cutting head sup,- ported and guided by means of an oscillating lever.
  • One object of the invention is to provide said shaver with a shearing device adapted to cut long hair, While it has been impossible until now to do so with the aid of the perforated guard plate.
  • Another object is to provide for the possibility of quick replacement of the guard plate of very simple manufacture and relatively high strength.
  • a further object of the invention is to eliminate the risks of deterioration due to the friction of the blade carrier against the usual slide-bars or to the friction of the blades against the inner face of the perforated guard plate in the event that the latter be deformed under the action of an excessive pressure against prominences of the face, such as the chin, for example.
  • Figure 1 is a -plan View of the guard plate
  • Figure 2 is a sectional view of said guard plate prior to the mounting operation
  • Figure 3 shows the guard plate in operativeposition
  • Figure 4 is an enlarged view of the whole shaver, partly in section,
  • FIG. 5 illustrates a detail of mounting of the blade
  • Figure 6 is a front view of the depilating device
  • Figure 7 is a sectional side view of the said device.
  • the guard-plate 1 is made of a hard spring metal of about one tenth of a millimeter in thickness, and throughout the area delimited by dotted lines (Fig. 1), it has a great number of perforations or openings of about 0.5 mm. in diameter and a centre to centre distance of more or less one millimeter.
  • the marginal portions On both longitudinal sides of the rectangular strip constituting the guard-plate,v the marginal portions have a profile such as shown in Fig. 2 and are upturned through an angle a.
  • Fig. 3 shows the guard-plate 1 inserted in slots of supports 2 and 3.
  • the distance between the supports 2 and 3 is adjusted in such a manner that the guard-plate ⁇ 1 may be flexed to a semi-cylindrical form, the axis of which passes through point O and the periphery of which corresponds to a circular sector equal to 2n.
  • the guide-slots for the guard-plate may be machined at right angles with respect to the inner surface of supports 2 and 3.
  • Another advantage of the profile represented in Fig. 2 is the fact that the perforated portion of the guardplate is completely kept apart from the supports 2 and 3.
  • the carrier carries four blades, the details of mounting being represented in Fig. 5.
  • Each of the blades 4 is guided within two vertical grooves united at their upper end by a horizontal groove.
  • Each blade 4 is submitted to a vertical thrust exerted from bottom to top by a pin l'i loaded by spring 6.
  • the blade carrier 5 is cut out with Aa central aperture through which the upper portion of the oscillating lever 8 is introduced.
  • the lever 8 carries-a damping roller 9 made of rubber or a similar material and having a diameter equal to the distance between the two adjacent blade holding members.
  • This kind of mounting ensures the advantage consisting on the one hand in the fact that each-of the blades may be always placed in the best conditions of cutting While limiting the pressure against the guard-plate and, on the other hand, in the fact that the blades may move 1 back without any risk of deterioration for the guard-plate or for the blades in the ⁇ event that the user should produce a momentary deformation of the guard-plate by exerting an excessive pressure against certain areas of the face, such as the chin for example.
  • the carrier together with its blades is reciprocated by a rectilinear movement at a frequency reaching about strokes per second.
  • the amplitude of the movement should be at least equal to the distance separating two consecutive blades from each other.
  • the spring 11 is designed so as to balance the cornbined thrust of all the springs 6.k As the blade carrier is made of light metal, the weight of the carrier togetherv with its blades is unimportant in comparison with the strength of the springs 6, as may be stated by a satisfying working in any position.
  • the depilating device of the shearing type (Figs. 6 and 7) is composed of a iixed rectilinear comb 13 comprising a certain number of teeth, of a cutter 14 comprising also a certain number of teeth, the width of these teeth being superior to the interval between two teeth of the comb 13, whereas the interval between two teeth of the cutter 14 issmaller or equal to the amplitude of oscilla-- tion imparted to said cutter.
  • a cutting device comprising in combination, an
  • a perforated plate member mounted on said housing covering the open end thereof; a lever member mounted in said housing for oscillation about an axis normal to the axis of said housing; a support member having a base portion extending substantially parallel to said plate member and mounted on the end of said oscillating lever member for movement thereby; cutter means resiliently mounted on said support member extending toward said plate member and in yieldable contact with the inner surface of said plate member; and a bearing member mounted on said lever member between said support member and the axis of oscillation of said lever member and having a curved surface bearing against the base portion of said support member, the center of said curved surface lying in member is reciprocated along-a line substantially parallel with said plate member and at a uniform distance therefrom:
  • yAy cutting device comprising'.' in" combination,l .an elongated: housing open. at .one end; a*perforated .'plate' member mountedonrsaid housing covermgtheopen end thereof; a lever member mounted in.'v saidlhousing for' oscillating. about anaxis'normal tothe laxisof said Thousing;.az.support'member having aibaseportion extending substantially .parallel to said platememberand vmounted onzthe .end of said 'oscillating lever memberrfor. movement thereby; cutter' meansiresilientlycmounted. on said supporti'- member i extending.; toward said. plate. member.
  • a cutting' device comprising in combination,I an' elongatedthousing' openA at one'end; a .perforated plate member mounted. on said housing covering .the open lend' thereof; a ⁇ levertmember mounted. in said housing for' member, the'center of said'curved .surface 'lying in the' axisLof oscillation of said lever member, whereby during oscillation of said lever member saidsupport member is reciprocated along'a'line substantially-parallel with said plate member and at a uniform distance therefrom; comb means having a-plurality of comb-elements arranged on the .outer surface of saidfhousing'along said perforated r plate member;' a cutting member having 'a'pluralityjof blade portions'fewer than Lthefnumberrof said comb 'ele--- ments in contact with' said ⁇ comb' elements -and operal tively connected to said oscillating lever member' for movement therebylsothatfsaid
  • a cutting device comprising in combination, an elongated housing. open'at one endg-.a perforated plate member mounted on said housing covering the open end thereof; a lever member mounted in said housing for oscillation about an 4axisnormal. tothe axis of said housing;v a :supportrn'emberhavingI a base .portion extending ⁇ substantially fparallelto.
  • saidv plate member and mounted on theend -of ⁇ saidfoscillatinglever member for movement thereby,-V andhaving-a plurality ofblade holdingV portionsrprojecting'from saidbase portion' toward'said plate member; 'apluralityl of blade members-carried by saidsuppor-t member, each bladernem'berbeing mounted-- in .oneo saidblade .holding portions thereof, extending toward and being resiliently urged into -yieldable contact' with ,-the. inner. tsurface of saidrplatemember; .a bearing member.
  • a cutting device comprising in combination, an elongated Yhousingfopen atoneend; a perforated plate member mounted'.onfsaidhousing covering the 'open end thereof; a lever member mountedin said .housing for oscillation-about-.an axis normal. totheaxis of said housing;..an ⁇ elongated .support "member having a -base portion extending substantially parallel to said plate member and lever member l.betweentsaid support member and the axis.l

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
US281095A 1951-10-15 1952-04-08 Electric shaver Expired - Lifetime US2694251A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR944597X 1951-10-15

Publications (1)

Publication Number Publication Date
US2694251A true US2694251A (en) 1954-11-16

Family

ID=9471839

Family Applications (1)

Application Number Title Priority Date Filing Date
US281095A Expired - Lifetime US2694251A (en) 1951-10-15 1952-04-08 Electric shaver

Country Status (7)

Country Link
US (1) US2694251A (xx)
BE (1) BE513805A (xx)
CH (1) CH303369A (xx)
DE (1) DE944597C (xx)
FR (1) FR1046871A (xx)
GB (1) GB720575A (xx)
NL (1) NL91986C (xx)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2873520A (en) * 1956-03-14 1959-02-17 Ronson Corp Power driven shaver and hair trimmer
US4001933A (en) * 1975-06-04 1977-01-11 Sperry Rand Corporation Cutter drive arrangement for an electric dry shaver
US4292737A (en) * 1978-12-11 1981-10-06 The Gillette Company Dry shaver with differentially biased inner cutter and base members

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1017489B (de) * 1954-11-19 1957-10-10 Richard Antretter Siebscherkopf fuer Trockenrasiergeraete
NL100415C (xx) * 1955-04-20
CH340732A (de) * 1956-02-10 1959-08-31 Apag Apparatebau Ag Goldach Trockenrasierapparat
US3047944A (en) * 1957-03-13 1962-08-07 Bulova Watch Co Inc Head construction for electric razors
DE1040419B (de) * 1957-05-03 1958-10-02 Siemens Ag Schmiegsames Siebscherblatt fuer ein Trockenrasiergeraet
US3091850A (en) * 1958-12-01 1963-06-04 Jacob L Kleinman Electric shavers having hingeable shearing section
GB921897A (en) * 1959-09-23 1963-03-27 Ever Ready Razor Products Ltd Improvements in dry shavers
DE1129862B (de) * 1961-06-19 1962-05-17 Steidinger Geb Scherkopf fuer Trockenrasiergeraet

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2296134A (en) * 1939-04-07 1942-09-15 Clifton C Wright Electric power-driven razor
US2331466A (en) * 1938-06-21 1943-10-12 Remington Rand Inc Electric dry shaver
US2342808A (en) * 1942-09-02 1944-02-29 Earl B Johnson Shaving machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190215875A (en) * 1902-07-16 1903-04-23 Emile Chat Improvements in and relating to Horse Clippers and the like
DE670740C (de) * 1935-03-19 1939-01-24 Schick Dry Shaver Inc Corp Regelvorrichtung fuer Kleinelektromotoren fuer Rasierapparate
DE722724C (de) * 1937-03-04 1942-07-18 Rudolf Naegeli Geraet zum Haarentfernen
DE684916C (de) * 1938-01-19 1939-12-07 Wilh Kober & Co Stahl Und Meta Haarschermaschine fuer Rasierschnitt
US2319916A (en) * 1938-09-07 1943-05-25 Raymond T Moloney Electric razor
FR959156A (xx) * 1939-10-07 1950-03-25
US2331417A (en) * 1940-05-22 1943-10-12 Naegeli Rudolf Shaving device
DE839911C (de) * 1942-01-31 1952-05-26 Richard Antretter Haarschermaschine fuer Rasierschnitt

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2331466A (en) * 1938-06-21 1943-10-12 Remington Rand Inc Electric dry shaver
US2296134A (en) * 1939-04-07 1942-09-15 Clifton C Wright Electric power-driven razor
US2342808A (en) * 1942-09-02 1944-02-29 Earl B Johnson Shaving machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2873520A (en) * 1956-03-14 1959-02-17 Ronson Corp Power driven shaver and hair trimmer
US4001933A (en) * 1975-06-04 1977-01-11 Sperry Rand Corporation Cutter drive arrangement for an electric dry shaver
US4292737A (en) * 1978-12-11 1981-10-06 The Gillette Company Dry shaver with differentially biased inner cutter and base members

Also Published As

Publication number Publication date
BE513805A (xx)
GB720575A (en) 1954-12-22
FR1046871A (fr) 1953-12-09
CH303369A (fr) 1954-11-30
NL91986C (xx)
DE944597C (de) 1956-06-21

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