US3343056A - Electric razor - Google Patents

Electric razor Download PDF

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Publication number
US3343056A
US3343056A US456904A US45690465A US3343056A US 3343056 A US3343056 A US 3343056A US 456904 A US456904 A US 456904A US 45690465 A US45690465 A US 45690465A US 3343056 A US3343056 A US 3343056A
Authority
US
United States
Prior art keywords
pair
housing
contact means
bottom wall
slot
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
US456904A
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English (en)
Inventor
Hirschmann Richard
Eberhard R Mayer
Boesch Hans
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.)
Richard Hirschmann Radiotechnisches Werk
Original Assignee
Hirschmann Radiotechnik
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 Hirschmann Radiotechnik filed Critical Hirschmann Radiotechnik
Application granted granted Critical
Publication of US3343056A publication Critical patent/US3343056A/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
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/3853—Housing or handle
    • 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
    • B26B19/28—Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive
    • B26B19/286—Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive providing for two or more different electrical power sources
    • 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
    • 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
    • B26B19/3873—Electric features; Charging; Computing devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/46—Accumulators structurally combined with charging apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/66—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall
    • H01R24/68—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall mounted on directly pluggable apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S30/00—Cutlery
    • Y10S30/01—Rechargeable battery operated

Definitions

  • ABSTRACT F THE DISCLOSURE In an electric razor carrying its own chargeable source of electric energy and adapted to be plugged in an outlet for charging the source of energy and comprising two contact means having each a pair of differently spaced prongs and means for interchangeably attaching the two contact means to the housing of the razor so that the latter may be selectively plugged into electrical outlets having female contacts of different spacing.
  • the present invention relates to an electrical implement carrying its own chargeable source of electrical energy and adapted to be plugged in an outlet of an electric current supply for charging the chargeable source of energy carried by the implement.
  • the present invention relates to an electric razor carrying an accumulator and a charging device for charging the accumulator and provided with contact means to be plugged in an electric outlet so that the accumulator may be charged by the charging device while the electrical razor is carried on the outlet.
  • the female contact elements of electrical outlets or sockets are spaced and dimensioned in different countries according to different standards, for instance the female contact elements in vari-ous European countries have an ⁇ internal diameter of 4 mm. and are spaced 19 mm, from each other, whereas in the United States and many other countries -rectangular shaped female contact elements are provided which are spaced from each other a distance of approximately l2 mm.
  • the present invention includes in an electrical implement carrying its own charge- 3,343,056 Patented Sept. 19, 1967 ICC able source of electrical energy land adapted to be plugged in an outlet of an electrical current supply for charging the chargeable source of energy, first contact means including a first insulating member and a pair of prongs mounted on the insulating member spaced a fixed given distance from each other, second contact means includingv a second insulating member and a pair of prongs mounted on the second insulating member spaced a fixed distance from each other which is different from the aforementioned distance, and mounting means on the implement for interchangeably attaching the first ⁇ and the second contact means in a rigid manner thereon so that when the attached contact means is plugged into a socket of an electric current supply, the implement is carried on the socket, while the attached contact means will provide electrical connection between the current supply and the chargeable source of electric energy, whereby the implement may be plugged into sockets having female contact elements of different spacing.
  • the invention includes in an electric razor, an elongated housing having opposite ends, motor means mounted in the housing adjacent one end thereof, accumulator means in the housing electrically connected to the motor means, a charging device mounted in the housing adjacent the other end thereof and electrically connected to the accumulator means, wherein the charging device has a pair of spaced contacts facing the other end of the housing, first contact means including a first insulating member and a pair ofl prongs extending through the first insulating member and having inner ends spaced from each other a distance equal to the spacing of the pair of contacts on the charging device and outer end portions projecting from the insulating member spaced a given distance from each other, second contact means including a second insulating member and having a pair of prongs extending through the second insulating member and having inner ends spaced from each other a distance equal to the spacing of the pair of contacts yand outer end portions projecting from the second insulating member spaced fromeach other a distance differing from the aforementioned given distance.
  • the electric razor includes further mounting means on the other end of the housing for interchangeably attaching the first or the second contact means in a rigid manner thereon so that, when the attached contact means is plugged into a socket of an electric current supply, the razor'is carried on the socket while the attached contact means will provide an electric connection between the current supply and the charging device, whereby the razor may be plugged into sockets having female contact elements of different spacing for charging the accumulator means therein.
  • the electric razor preferably includes also hollow cover means releasably connected to the other end of the housing for covering the contact means connected to the cover means of the housing when the razor is used and not charged, and means are provided in the cover means for releasably holding the contact means therein which are not connected to the other end of the housing.
  • FIG. 1 is a partially sectioned front view of the electric razor according to the present invention
  • FIG. 2 is a partially sectional side view of the razor shown in FIG. 1; t
  • FIG. 3 is a cross section through the razor taken along the line 3-3 of FIG. 1 and viewed in the direction of the arrows;
  • FIG. 4 is a cross section taken along the line 4-4 of FIG. 2 and viewed in the direction of the arrows.
  • the electric razor according to the present invention includes an elongated housing having an upper part 1 and a lower part 2 releasably connected to each other at 3, and as can be seen from the drawings the upper part 1 is at its bottom end provided with a groove and an annular projection cooperating with corresponding groove and projection on the upper end of the lower part 3 so that the two parts, which are preferably made from plastic material, can be connected with a snap lit -to each other.
  • the parts 1 and 2 can however also be connected to each other by providing cooperating male and female threads at the lower end of the upper part 1 and the upper end of the lower part 2.
  • a small electro-motor 4 for driving the -actual razor mechanism in a known manner.
  • the razor mechanism of known construction is not shown in the drawing, but 4this mechanism is covered by a protective removable cover 5.
  • a charging device 6 of known construction and an accumulator 7 are located in the lower part 2 of the housing removable therefrom when the two housing par-ts are disconnected from each other.
  • a plurality of ribs 8 circumferentially spaced from each other and projecting inwardly from the wall of the lower housing part 2 position the accumulator 7 along the axis of the housing.
  • the part 2 has a lower cylindrical portion 9 in which the charging device 6 is housed, resting on the bottom of the lower housing part 2.
  • the bottom of the lower housing part 2 is formed with a transverse slot 10 therethrough so as to leave two circular segments 11 and 12 on opposite sides of the slot 10.
  • a plate 13 of insulating material is inserted in the slot and the plate 13 has along opposite side faces thereof longitudinal guide ribs 16 and 17 which t into appropriate grooves extending from the side faces of the slot 10 into .the bottom parts 11 and 12.
  • a pair of contact prongs 14 and 15 are riveted with their upper ends into appropriate openings in the plate 13 and project with the main portions thereof from the bottom surface of this plate.
  • the prongs 14 and 15 are spaced a given distance from each other so as to be adapted to t into female contact elements of an electrical outlet socket.
  • the rivet heads 18 and 19 of the prongs 14 and 15 are projecting beyond the upper surface of ythe plate 13 and resiliently engage with curved contact springs 20 and 21, respectively, which are electrically connected to the charging device 6.
  • the charging device 6 is electrically connected to the accumulator 7 by a curved leaf spring 22 which is fixed to the charging device 6 and which presses against a conductive bottom face of the accumulator 7.
  • the spring 22 engages with its curved right end 23, as viewed in FIG. 1, which projects beyond the charging device, a longitudinally extending electrically conductive at leaf spring 24 at one end thereof, the other end of which is engaged by a springy contact 26 of the sliding switch 25 when the switch is in position as shown in FIG. 1.
  • the switch is movable in longitudinal direction of the housing to open the contact between springs 24 and 26.
  • the contact 26 of the switch 25 is connected by an insulated flexible conductor 27 to one terminal contact 28 on the motor 4.
  • the other terminal contact 29 of the motor 4 is electrically connected to a curved leaf spring 30 and through a flexible insulated conductor 31 with the second terminal 32 of the charging device 6.
  • the aforementioned spring 30 presses against an electrical conductive end face of the accumulator 7 and forms thereby the second terminal contact of the accumulator.
  • the contact prongs 14 and 15 are normally covered by a cup-shaped cover 33 which is removed from the 4 housing of the razor only when the accumulator 7 is to be charged and the prongs 14 and 15 are plugged into corresponding contact elements of an outlet socket of an electrical current supply.
  • the cover 33 is formed from resilient material, for instance plastic, and is provided at its upper rim with an annular inwardly extending projection 34 which tits into an appropriate groove in the lower housing part 2 so that the cover may be connected with a snap t to the lower housing part.
  • the plate 13 with the prongs 14 and 15 connected thereto constitutes rst contact means and according to the present invention the electric razor is provided with second contact means which are constituted by an insulating plate 37, of the same outer configuration as plate 13, to which a pair of contact prongs 38'and 39 are fixedly connected extending with portions 42 and 43 thereof respectively through appropriate openings in the insulating plate 37 and having curved contact portions 44 and 45, respectively, which are spaced from each other the same distance as the contact springs 20 and 21 on the charging device 6 so as to be adapted to resiliently engage the aforementioned contact springs when the plate 37 is pushed instead of the plate 13 into the slot 10 at the bottom of the lower housing part 2.
  • the prongs 38 and 39 are spaced from each other a distance different from the spacing between the prongs 14 and 15 and the spacing of the prongs 38 and 39 correspondsl to the spacing between female contact elements in electrical outlet sockets according to United States standards.
  • the prongs 14 and 15 are substantially cylindrical in cross section corresponding to the cross sections of female conta-ct elements in outlet sockets of certain European countries
  • the prongs 38 and 39 are substantially rectangular in cross section according to the standards of female socket elements in the United States.
  • the springs 20 and 21 are preferably formed with cavities 46 and 47 (FIG. l3) into which the rivet heads 18 and 19 of the prongs 14 and 15 or the curved portions 44 and 45 of the prongs 38 and 39 are adapted to t when the plate 13 or the plate 37 is pushed into the slot 10.
  • a projection 48 may also be provided on the charging device 6 which is adapted to engage into a central opening 41 of the plate 13 or into a corresponding opening of the plate 37 when the latter is pushed instead of the plate 13 into the slot 10.
  • the side faces of the plates 13- and 37 may also be provided with short projections 49 and 50 (FIG.
  • a substantially spherical button 40 projects upwardly from the bottom 36 of the cup-shaped cover 33 which serves to releasably hold the insulating plate 13 or 37, that is that insulating plate which is not pushed yinto the slot 10 ⁇ of the lower housing part 2.
  • the slot 10 in the lower housing part 2 with its guide grooves forms mounting means on the lower end of the housing for interchangeably attaching first contact means constituted by the plate 13 and the contact prongs 14 and 15 or second contact means that is the plate 37 with the prongs 38 and 39 in a rigid manner on the housing so that the electric razor of the present invention may be plugged into electrical outlet sockets the female contact elements of which are constructed either to European or United States standards.
  • the contact means which are not in use are resiliently held on the cover 33 while the other contact means are placed in the slot 10y and are electrically connected to the charging device so as to be usable for charging the accumulator of the razor.
  • An electric razor comprising, in combination, an elongated housing having a bottom wall and being formed in said bottom wall with a slot extending transversely therethrough and being defined by a pair of edge faces each formed with a longitudinally extending groove; motor means in said housing at a portion thereof spaced from said bottom wall; a charging device in said housing adjacent said bottom wall and having a pair of spaced resilient contacts facing said slot; an accumulator in said housing arranged between and electrically connected to said motor means and said charging device; first contact means including a rst insulating plate of a width substantially equal to the width of said slot and having longitudinal edge portions adapted to t into said grooves so that said edge portions of said rst insulating plate may be slid into said grooves to releasably connect said first contact means to said bottom wall of said housing, said rst contact means further include a pair of prongs extending through said rst insulating plate and having inner ends spaced from each other a distance equal to the spacing of said
  • said housing includes two parts releasably connected to each other, wherein said accumulator means and said charging device are removably mounted in said housing, and including conductor means for electrically connecting said accumulator to said motor means and said charging ⁇ device and for pro viding electrical contact between the prongs of that contact means which is inserted in said slot, said conductor means including contact springs for providing resilient contact between the inner ends of the prongs of that contact means which is inserted in said slot and said contacts of said charging device.
  • An electric razor comprising, in combination, an elongated housing having a bottom wall and being formed in said bottom wall with a slot extending transversely therethrough and being defined by a pair of edge faces each formed with a longitudinally extending groove; motor means in said housing at Ia portion thereof spaced from said bottom wall; a charging device in said housing adjacent said bottom wll and having a pair of spaced resilient contacts facing said slot; an accumulator in said housing arranged between said motor means and said charging device; conduc-tor means for electrically connecting said accumulator to said motor means and to said charging device, said conductor means including a springy conductor element sandwiched between said accumulator and -said charging device and biased so as to resiliently press said charging device toward said bottom wall of said housing; irst contact means including a rst insulating plate of a width substantially equal to the width of said slot and having longitudinal edge portions adapted to lit into said grooves so that said edge portions of said first insulating plate may be slid into said grooves

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Dry Shavers And Clippers (AREA)
  • Manufacture Of Motors, Generators (AREA)
US456904A 1964-05-19 1965-05-17 Electric razor Expired - Lifetime US3343056A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT432564A AT248912B (de) 1964-05-19 1964-05-19 Elektrorasiergerät

Publications (1)

Publication Number Publication Date
US3343056A true US3343056A (en) 1967-09-19

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ID=3562525

Family Applications (1)

Application Number Title Priority Date Filing Date
US456904A Expired - Lifetime US3343056A (en) 1964-05-19 1965-05-17 Electric razor

Country Status (8)

Country Link
US (1) US3343056A (xx)
AT (1) AT248912B (xx)
BE (1) BE663655A (xx)
CH (1) CH421749A (xx)
DE (1) DE1515829A1 (xx)
ES (1) ES312802A1 (xx)
GB (1) GB1046309A (xx)
NL (1) NL6506078A (xx)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2401531A1 (fr) * 1977-08-25 1979-03-23 Sandvik Ab Bloc a accumulateurs pouvant etre recharge sur une prise de courant
FR2520939A1 (fr) * 1982-02-02 1983-08-05 Joustra Sa Module d'alimentation en energie, notamment pour jouets
US4719698A (en) * 1985-07-02 1988-01-19 Kyushu Hitachi Maxell, Ltd. Electric shaver with a drive control
US4973827A (en) * 1988-10-26 1990-11-27 Asahi Irika Co., Ltd. Disinfector units for contact lenses
US20070169349A1 (en) * 2006-01-24 2007-07-26 Harris John R Ii Scrubbing razor
US20100043233A1 (en) * 2006-01-24 2010-02-25 Harris Ii John Robert Scrubbing razor
US20110192032A1 (en) * 2006-01-24 2011-08-11 Harris Ii John R Scrubbing razor with safety ribs

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4246758A1 (de) * 2022-03-17 2023-09-20 Wahl GmbH Ladestation, haarschneidevorrichtung und adapter für diese

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2100094A (en) * 1936-02-19 1937-11-23 Wahl Clipper Corp Electric cord plug adapter
US3027507A (en) * 1956-08-06 1962-03-27 Hubner Otto Power pack means for electrical appliance

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2100094A (en) * 1936-02-19 1937-11-23 Wahl Clipper Corp Electric cord plug adapter
US3027507A (en) * 1956-08-06 1962-03-27 Hubner Otto Power pack means for electrical appliance

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2401531A1 (fr) * 1977-08-25 1979-03-23 Sandvik Ab Bloc a accumulateurs pouvant etre recharge sur une prise de courant
FR2520939A1 (fr) * 1982-02-02 1983-08-05 Joustra Sa Module d'alimentation en energie, notamment pour jouets
US4719698A (en) * 1985-07-02 1988-01-19 Kyushu Hitachi Maxell, Ltd. Electric shaver with a drive control
US4973827A (en) * 1988-10-26 1990-11-27 Asahi Irika Co., Ltd. Disinfector units for contact lenses
US20070169349A1 (en) * 2006-01-24 2007-07-26 Harris John R Ii Scrubbing razor
US7500312B2 (en) * 2006-01-24 2009-03-10 Harris Ii John Robert Scrubbing razor
US20090158594A1 (en) * 2006-01-24 2009-06-25 Harris Ii John Robert Scrubbing razor
US20100043233A1 (en) * 2006-01-24 2010-02-25 Harris Ii John Robert Scrubbing razor
US7814660B2 (en) 2006-01-24 2010-10-19 Harris Ii John Robert Scrubbing razor
US7856721B2 (en) 2006-01-24 2010-12-28 Harris Ii John Robert Scrubbing razor
US20110035944A1 (en) * 2006-01-24 2011-02-17 Harris Ii John Robert Scrubbing razor
US20110192032A1 (en) * 2006-01-24 2011-08-11 Harris Ii John R Scrubbing razor with safety ribs
US8056240B2 (en) 2006-01-24 2011-11-15 Harris Ii John Robert Scrubbing razor
US8056239B2 (en) 2006-01-24 2011-11-15 Harris Ii John Robert Scrubbing razor
US8413335B2 (en) 2006-01-24 2013-04-09 II John Robert Harris Scrubbing razor
US8453331B2 (en) * 2006-01-24 2013-06-04 II John Robert Harris Scrubbing razor
US8677628B2 (en) 2006-01-24 2014-03-25 II John R. Harris Scrubbing razor with safety ribs

Also Published As

Publication number Publication date
DE1515829A1 (de) 1969-11-13
BE663655A (xx) 1965-09-01
NL6506078A (xx) 1965-11-22
CH421749A (de) 1966-09-30
GB1046309A (en) 1966-10-19
AT248912B (de) 1966-08-25
ES312802A1 (es) 1966-02-01

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