US3714711A - Cutter drive member means for electric dry shaver - Google Patents

Cutter drive member means for electric dry shaver Download PDF

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Publication number
US3714711A
US3714711A US00102639A US3714711DA US3714711A US 3714711 A US3714711 A US 3714711A US 00102639 A US00102639 A US 00102639A US 3714711D A US3714711D A US 3714711DA US 3714711 A US3714711 A US 3714711A
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US
United States
Prior art keywords
drive member
portions
cutter
drive
leg portions
Prior art date
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Expired - Lifetime
Application number
US00102639A
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English (en)
Inventor
J Daniels
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.)
Unisys Corp
Original Assignee
Sperry Rand 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 Sperry Rand Corp filed Critical Sperry Rand Corp
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Publication of US3714711A publication Critical patent/US3714711A/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
    • B26B19/28—Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive

Definitions

  • ABSTRACT An electric dry shaver having a cutter head comprising a stationary and a movable cutter, a drive member 7 for said movable cutter, and a motor for effecting operation of said drive member.
  • Means are provided for mounting the drive member on the motor and which means include a plate member secured to the motor housing and detachable clamp means provided for detachably securing the drive member to the plate.
  • a cutter drive member of the mentioned patent includes a main movable body portion comprised of a plurality of movable parallel surfaces each having a drive arm engaging a movable cutter of a cutter head assembly having a plurality of movable cutters equal in number to the movable surfaces.
  • the drive surfaces of the drive members are each arranged parallel to a movable cutter and connected to the motor driven operating means.
  • the latter includes an eccentric means for reciprocating the plurality of surfaces and their associated movable cutters in opposite direction.
  • the opposite ends of the surfaces are provided with flexible leg portions arranged in supporting structure provided in the walls of the shaver casing.
  • Another object is to provide novel means for detachably securing a cutter drive member to the motor driven operating means whereby the member is readily attached and'detached from the motor housing.
  • Another object is to provide a novel and economical mount for a cutter drive member whereby the cutter drive arms thereof can be arranged in any selected plane relative to the cutter operating means in accordance with the particular casing configuration of the shaver.
  • a still further object is to provide novel means for mounting a cutter drive member on an electric dry shaver motor wherein a novel clamp arrangement is provided for maintaining a plurality of driven surfaces of the drive member in operative position.
  • the present invention contemplates an electric dry shaver having a cutter head provided with at least one movable cutter, a drive member for said movable cutter, and a motor having operating means for effecting movement of the drive member to'move the movable cutter.
  • a plate member is secured to the motor and is formed with flange portions upon which is seated the opposite end portions of the cutter drive member and which end portions comprise flexible leg members adapted to be flexed in a plane of movement of the movable cutter upon operation of the motor operating means.
  • Clamp means are provided at the opposite ends of the plate member for detachably securing the leg portions of the drive member to the flange portions of the plate member.
  • FIG. 1 is a perspective view of an electric dry shaver incorporating the present invention
  • FIG..2 is a fragmentary partial cross-sectional view of the electric dry shaver of FIG. 1 taken longitudinally
  • FIG. 4 is a side elevational view of the motor and cutter drive member; and
  • FIG. 5 is an exploded perspective view of the cutter drive member and mounting plate therefor.
  • the reference numeral 10 generally indicates an electric dry shaver having a casing 1.1 which includes in the upper portion thereof (FIGS. 1 and 2) a cutter head assembly 12.
  • Cutter head assembly 12 is of a known type structure and comprises three individual and identical cutter h'ead units 14 of the general type shown and described in US. Pat. No. 2,793,430 to L. C. Carissimi dated May 28, 1907.
  • Each cutter unit as partially shown in FIG. 2 includes an elongated stationary outer cutter l6 in which is disposed a movable inner cutter 17 to which is attached a leaf spring 18 for urging inner-cutter 17 into cooperative cutting position with outer cutter 16.
  • a motor compartment 20 is provided within casing 11 beneath wall portion 21 and has provided therein a motor 23 of a usual type structure having a rotatable drive shaft 25 which projects through the upper surface of motor housing 27 which comprises a cylindrical metal member having an end bell 28 provided at the base thereof.
  • a battery 30 partially shown in FIG. 2 for providing a source of power for energizing motor 23 upon manipulation of the switch member 31 in a usual and well-known manner is disposed adjacent motor 23 in motor compartment 20.
  • a cutter drive member 35 is provided on motor 23 and which drive member 35 is formed of premolded plastic material and includes a plurality of cutter actuating arms 36 each engaged with an inner cutter 17 of cutter head assembly 12 (as seen with respect to one cutter 17 in FIG. 2) for reciprocating the cutter upon operation of the motor 23.
  • cutter drive member 35 includes three portions 39, 40 and 41 with each of said portions provided with a pair of depending leg portions 44 and 45.
  • flexible leg members 44 and 45 include and extend V-shaped flexible joint 48 having one arm depending from the portion 40 and the other connected to an end block 50.
  • Portion 40 is disposed between outer portions 39 and 41 and as shown includes a separate member interlocked to portions 39-41 by dove-tail connections 51.
  • An interconnecting drive element 52 partially shown in FIG. 2 of the type shown in the mentioned U.S. Pat. No. 3,365,796 interconnects portions 39 41 is connected in driving engagement with eccentric 54 of motor drive shaft 25 which has its free end in driving engagement at slot 55 with portion 40 whereby in operation the portions 39-40-41 are driven in out of phase relationship.
  • a generally rectangular-shaped plate 60 (FIGS. 2-5) is disposed over the upper portion of-motor housing 27.
  • An aperture 61 is provided in the base of the plate 60 which fits over bearing portion 62 of motor 23.
  • Plate 60 is secured to housing 27 by rivots 65.
  • the opposite end portions of plate 60 comprise upwardly extending flanges 68 and 70 respectively.
  • Seats 71 are formed in block end surfaces 50 of cutter drive portions 39, 40 and 41 (as shown with respect to portion 40 in FIG. 2) which are seated on flanges 68-70 to locate the drive member thereon.
  • the upper edges of flanges 68-70 designated 72 and 74 respectively are inclined relative to the base of the plate 60 thereby presenting drive member 35 at an angle thereto.
  • Clamp means including a pair of spaced clamp members 76 and 77 are, provided forsecuring cutter drive member 35 to flanges 68 and 70.
  • Each clamp 76-77 is provided with an elongated slot 78 in the bite portion thereof that fits overbosses 80 (FIGS. 4 and 5) provided in end blocks 50.
  • The-detenting opposite ends 82 of each clamp 76-77 are provided with apertures 83 which are snap fitted over'projections 85 on flanges 68-70 thereby securely detenting cutter drive member 35 in position on plate member 60.
  • cutter drive member 35 is readily removable from flanges 68 and 70 by detaching clamp members 76-77. 1
  • the novel means for mounting the cutter drive member 35 on motor 23 has many advantages in use.
  • One advantage is the fact that no additional casing wall structureis' provided within the casing or motor housing for mounting the drive member.
  • the novel clamp means for attaching the cutter drive member provides ready means for assembling the cutter drive member to the shaver and for removing the same when necessary.
  • motor 23 and cutter drive member 35 can be removed as an operable unit from shaver 10 without disturbing other parts of the shaver.
  • An electric dry shaver comprising,
  • a cutter head having at least one movable and one stationary cutter mounted on said casing
  • a cutter drive member in said casing for moving said movable cutter, said drive member having a drive portion adapted for movement in a reciprocating path,
  • said 'drive member including laterally extending flexible leg portions, said leg portions being flexible relative to said drive portion,
  • said mounting means including a plate member and clamp means, said plate member secured to the motor and having flange portions, said leg portions respectively including seat means, for positioning the drive member on said flange portions, said flange portions engaged with said flexible leg portions of said drive member, and said clamp means detachably securing said flexible leg portions to said flange portions, and
  • said clamp means comprising a pair of spaced clamp members of U-shaped configuration each secured to one of said flange portions of the plate member, each of said clamp members having a bite portion and spaced arms, said bite portions respectively adapted to be mounted against one of the leg portions of the drive member, and the arms of each clamp member comprising portions adapted for grasping theside edges of said'flange portions thereby detenting the leg portions of said drive member to said flange portions.
  • clamp members being positioned overthe boss on the I leg portion associated therewith.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
US00102639A 1970-12-30 1970-12-30 Cutter drive member means for electric dry shaver Expired - Lifetime US3714711A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10263970A 1970-12-30 1970-12-30

Publications (1)

Publication Number Publication Date
US3714711A true US3714711A (en) 1973-02-06

Family

ID=22290894

Family Applications (1)

Application Number Title Priority Date Filing Date
US00102639A Expired - Lifetime US3714711A (en) 1970-12-30 1970-12-30 Cutter drive member means for electric dry shaver

Country Status (8)

Country Link
US (1) US3714711A (enExample)
AT (1) AT313102B (enExample)
AU (1) AU462184B2 (enExample)
CA (1) CA953899A (enExample)
DE (1) DE2165954A1 (enExample)
FR (1) FR2120786A5 (enExample)
GB (1) GB1313822A (enExample)
NL (1) NL7117827A (enExample)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167060A (en) * 1976-11-15 1979-09-11 Matsushita Electric Works, Ltd. Electric shaver
US4395821A (en) * 1980-08-23 1983-08-02 Braun Aktiengesellschaft Device having a long-hair cutting unit
US4397616A (en) * 1979-07-14 1983-08-09 Matsushita Electric Works, Ltd. Pump driving mechanism
US4606121A (en) * 1984-02-08 1986-08-19 U.S. Philips Corporation Drive mechanism for a vibration-type dry-shaver
US4628607A (en) * 1984-05-14 1986-12-16 U.S. Philips Corporation Vibration dry shaving apparatus driven by a bipolar uniphase synchronous motor
US4660283A (en) * 1985-09-20 1987-04-28 Matsushita Electric Works, Ltd. Dynamically balanced apparatus having reciprocating member
US4805300A (en) * 1986-09-17 1989-02-21 Remington Products, Inc. Electric dry shaver having an improved drive arrangement
US20180319026A1 (en) * 2017-05-02 2018-11-08 Izumi Products Company Reciprocating-type electric shaver
WO2022000390A1 (en) * 2020-07-01 2022-01-06 Braun Gmbh Swing bridge and electrically driven device herewith
US12128573B2 (en) 2020-07-01 2024-10-29 Braun Gmbh Electrically driven device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT337572B (de) * 1975-07-28 1977-07-11 Philips Nv Elektromotorisch angetriebenes gerat
AT366947B (de) * 1979-09-19 1982-05-25 Philips Nv Trockenrasierapparat
US5325590A (en) * 1993-03-09 1994-07-05 Andis Company Hair trimmer having a low-friction rotary drive

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3191299A (en) * 1960-01-11 1965-06-29 Sperry Rand Corp Mount for cutter drive member
US3365796A (en) * 1965-04-20 1968-01-30 Sperry Rand Corp Electric dry shaver
US3504433A (en) * 1964-11-24 1970-04-07 Gillette Co Suspension for a reciprocable blade of a shaver head
US3590482A (en) * 1969-06-06 1971-07-06 Sunbeam Corp Comb support and release mechanism for electric dry shaver

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3191299A (en) * 1960-01-11 1965-06-29 Sperry Rand Corp Mount for cutter drive member
US3504433A (en) * 1964-11-24 1970-04-07 Gillette Co Suspension for a reciprocable blade of a shaver head
US3365796A (en) * 1965-04-20 1968-01-30 Sperry Rand Corp Electric dry shaver
US3590482A (en) * 1969-06-06 1971-07-06 Sunbeam Corp Comb support and release mechanism for electric dry shaver

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167060A (en) * 1976-11-15 1979-09-11 Matsushita Electric Works, Ltd. Electric shaver
US4397616A (en) * 1979-07-14 1983-08-09 Matsushita Electric Works, Ltd. Pump driving mechanism
US4395821A (en) * 1980-08-23 1983-08-02 Braun Aktiengesellschaft Device having a long-hair cutting unit
US4606121A (en) * 1984-02-08 1986-08-19 U.S. Philips Corporation Drive mechanism for a vibration-type dry-shaver
US4628607A (en) * 1984-05-14 1986-12-16 U.S. Philips Corporation Vibration dry shaving apparatus driven by a bipolar uniphase synchronous motor
US4660283A (en) * 1985-09-20 1987-04-28 Matsushita Electric Works, Ltd. Dynamically balanced apparatus having reciprocating member
US4805300A (en) * 1986-09-17 1989-02-21 Remington Products, Inc. Electric dry shaver having an improved drive arrangement
US20180319026A1 (en) * 2017-05-02 2018-11-08 Izumi Products Company Reciprocating-type electric shaver
US10913169B2 (en) * 2017-05-02 2021-02-09 Maxell Izumi Co., Ltd. Reciprocating-type electric shaver
WO2022000390A1 (en) * 2020-07-01 2022-01-06 Braun Gmbh Swing bridge and electrically driven device herewith
US12083691B2 (en) 2020-07-01 2024-09-10 Braun Gmbh Swing bridge and electrically driven device herewith
US12128573B2 (en) 2020-07-01 2024-10-29 Braun Gmbh Electrically driven device

Also Published As

Publication number Publication date
FR2120786A5 (enExample) 1972-08-18
AU462184B2 (en) 1975-06-19
CA953899A (en) 1974-09-03
AU3474271A (en) 1973-05-03
DE2165954A1 (de) 1972-07-20
NL7117827A (enExample) 1972-07-04
GB1313822A (en) 1973-04-18
AT313102B (de) 1974-02-11

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