US3911572A - Trimmer device for an electric dry shaver - Google Patents

Trimmer device for an electric dry shaver Download PDF

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Publication number
US3911572A
US3911572A US479315A US47931574A US3911572A US 3911572 A US3911572 A US 3911572A US 479315 A US479315 A US 479315A US 47931574 A US47931574 A US 47931574A US 3911572 A US3911572 A US 3911572A
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United States
Prior art keywords
trimmer
casing
assembly
operative position
cavity
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Expired - Lifetime
Application number
US479315A
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English (en)
Inventor
Peter A Czerner
John F Daniels
Richard Ihasz
Edward Szymansky
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Remington Products Inc
Sperry Corp
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Sperry Rand Corp
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Priority to US479315A priority Critical patent/US3911572A/en
Priority to CA224,723A priority patent/CA1023932A/en
Priority to AU80189/75A priority patent/AU494225B2/en
Priority to FR7517280A priority patent/FR2274409A1/fr
Priority to GB2536775A priority patent/GB1463924A/en
Application granted granted Critical
Publication of US3911572A publication Critical patent/US3911572A/en
Assigned to MELLON BANK (EAST) NATIONAL ASSOCIATION, A NATIONAL BANKING ASSOCIATION reassignment MELLON BANK (EAST) NATIONAL ASSOCIATION, A NATIONAL BANKING ASSOCIATION LIEN (SEE DOCUMENT FOR DETAILS). Assignors: REMINGTON PRODUCTS, INC.
Assigned to SUN LIFE ASSURANCE COMPANY,, MUTUAL TRUST LIFE INSURANCE COMPANY, C/O MIMLIC ASSET MANAGEMENT COMPANY, TEACHERS INSURANCE & ANNUITE ASSOCIATION OF AMERICA, reassignment SUN LIFE ASSURANCE COMPANY, LIEN (SEE DOCUMENT FOR DETAILS). Assignors: REMINGTON PRODUCTS, INC., A CORP OFF DE
Assigned to MINISTERS LIFE - A MUTUAL LIFE INSURANCE COMPANY, MINNESOTA MUTUAL LIFE INSURANCE COMPANY OF AMERICA, THE, AMERICAN INVESTORS LIFE INSURANCE COMPANY, NORTH ATLANTIC LIFE INSURANCE COMPANY OF AMERICA, THE, COMMERCIAL UNION LIFE INSURANCE COMPANY OF AMERICA, C/O COMMERICAL UNION INVESTMENT MANAGEMENT CORP., TEACHERS INSURANCE & ANNUITY ASSOCIATION OF AMERICA, MUTUAL SERVICE LIFE INSURANCE COMPANY, C/O MIMLIC ASSET MANAGEMENT COMPANY, CONNECTICUT BANK AND TRUST COMPANY, NATIONAL ASSOCIATION, AS AGENT reassignment MINISTERS LIFE - A MUTUAL LIFE INSURANCE COMPANY SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: REMINGTON PRODUCTS, INC., A DE CORP.
Assigned to STATE STREET BANK AND TRUST COMPANY OF CONNECTICUT, NATIONAL ASSOCIATION reassignment STATE STREET BANK AND TRUST COMPANY OF CONNECTICUT, NATIONAL ASSOCIATION LIEN (SEE DOCUMENT FOR DETAILS). Assignors: REMINGTON PRODUCTS, INC., A DE CORPORATION
Assigned to REMINGTON PRODUCTS, INC., A DE CORP. reassignment REMINGTON PRODUCTS, INC., A DE CORP. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: MELLON BANK, N.A.
Assigned to REMINGTON PRODUCTS, INC., A CORP. OF DE reassignment REMINGTON PRODUCTS, INC., A CORP. OF DE RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: MUTUAL TRUST LIFE INSURANCE COMPANY, SUN LIFE ASSURANCE COMPANY OF CANADA, TEACHERS INSURANCE AND ANNUITY ASSOCIATION OF AMERICA
Assigned to REMINGTON PRODUCTS, INC. reassignment REMINGTON PRODUCTS, INC. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: STATE STREET BANK AND TRUST COMPANY OF CONNECTICUT, NATIONAL ASSOCIATION
Assigned to REMINGTON PRODUCTS COMPANY reassignment REMINGTON PRODUCTS COMPANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: REMINGTON PRODUCTS, INC., A CORP. OF DE
Assigned to REMINGTONS PRODUCTS, INC., A CORP. OF DE reassignment REMINGTONS PRODUCTS, INC., A CORP. OF DE RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: TEACHER INSURANCE AND ANNUITY ASSOCIATION OF AMERICAN, AMERICAN INVESTORS LIFE INSURANCE COMPANY, COMMERCIAL UNION LIFE INSURANCE COMPANY OF AMERICA C/O COMMERICAL UNION INVESTMENT MANAGEMENT CORP., MINISTERS LIFE - A MUTUAL LIFE INSURANCE COMPANY, MINNESOTA MUTUAL LIFE INSURANCE COMPANY OF AMERICA, THE, MUTUAL SERVICE LIFE INSURANCE COMPANY, C/O MIMLIC ASSET MANA GEMENT COMPANY, NORTH ATLANTIC LIFE INSURANCE COMPANY OF AMERICA, THE
Assigned to PROVIDENT BANK, THE reassignment PROVIDENT BANK, THE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: REMINGTON PRODUCTS COMPANY
Anticipated expiration legal-status Critical
Assigned to REMINGTON PRODUCTS COMPANY reassignment REMINGTON PRODUCTS COMPANY RELEASE OF SECURITY INTEREST Assignors: PROVIDENT BANK, THE
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
    • B26B19/10—Cutting heads therefor; Cutters therefor; Securing equipment thereof involving two or more different types of reciprocating cutting elements, e.g. a pair of toothed shearing elements combined with a pair of perforated cutting elements or a combined toothed and perforated cutting assembly
    • B26B19/105—Cutting heads therefor; Cutters therefor; Securing equipment thereof involving two or more different types of reciprocating cutting elements, e.g. a pair of toothed shearing elements combined with a pair of perforated cutting elements or a combined toothed and perforated cutting assembly with a secondary cutting unit being rotated into an operating position

Definitions

  • ABSTRACT A trimmer device for an electric dry shaver and which trimmer is operable from the drive for the main cutter assembly.
  • a trimmer latch and release mechanism is provided for latching the trimmer in non-operative position which are operable to release the trimmer to operative position as desired.
  • This invention relates to new and useful improvements in electric dry shavers and more particularly to trimmer devices used in association with the main cutter head assembly.
  • Trimmer devices for electric dry shavers for utilizat tion asauxiliary cutter units in association with the main cutter head assembly are well-known. These trimmer devices are utilized to trim mustaches and sideburns which otherwise are not readily accessible to the main cutter head assembly which is mainly adapted to the shaving of the users facial hair bristles or beard.
  • trimmer devices usually comprise a stationary guard having spaced teeth and upon which guard members is mounted a movable cutter having teeth for clipping hair that is fed into the moving path thereof by the teeth of the stationary guard.
  • means for operating the trimmer device directly from the drive means for the main cutter head assembly are also usually provided.
  • some trimmer devices are maintained in a stationary operative position with the drive means it is more desirable that means are provided for selectively connecting and disconnecting the trimmer with the drive means so that the same is not operative when the main cutter head assembly is in use.
  • the trimmer device is pivotally mounted on the casing whereby in the non-operative position the trimmer device is adapted to lie flat against the casing surface of the shaver.
  • Latch means have been proposed in the past for maintaining the device in latched non-operative position.
  • a further object is to provide novel means for latching a trimmer device within a shaver casing and which means includes means spaced from the trimmer for releasing the latter to operative position.
  • a further object is to provide novel means for mounting the trimmer device for release to an operative position and for restoring the trimmer to inoperative position in a safe and efficient manner.
  • a still further object is to provide a novel trimmer device and mounting arrangement wherein the parts of the trimmer are fully protected from damage in the inoperative position of the trimmer unit.
  • the present invention contemplates a novel trimmer device for an electric dry shaver.
  • the trimmer device includes a stationary guard, a movable cutter, and a protective housing element which extends across one face of the shaver casing.
  • the housing element is adapted for pivotal movement into and out of a cavity provided in the casing and carries means for connecting the movable cutter with the main drive means of the electric shaver in the operative position of the trimmer unit.
  • Latching means are provided for releasing the trimmer from inoperative to operative position and which means are spaced from the operative trimmer mechanism. Further the releasing means is positioned in a manner for operation by the thumb of the user whereby in one continuous motion from the latter position the thumb may also restore the trimmer device into the cavity of the shaver casing when not in use.
  • FIG. 1 is a partly fragmentary perspective view of an electric dry shaver embodying the present invention and shows the novel trimmer device in inoperative position;
  • FIG. 2 is an enlarged fragmentary side elevational view of the upper portion of the electric dry shaver of FIG. I with parts of the shaver broken away to show the cutter head assembly and trimmer device;
  • FIG. 3 is a fragmentary partly sectional view of the latching mechanism for the trimmer device and shows the latter in latched position;
  • FIG. 4 is a perspective view of the parts of the latching mechanism
  • FIG. 5 is a sectional view taken on the line 55 of FIG. 3;
  • FIG. 6 is a sectional view of the trimmer mechanism in the operative position
  • FIG. 7 is a front view of the upper portion of the shaver casing with parts broken away to show portions of the trimmer device.
  • FIG. 8 is an exploded perspective view of the various parts of the trimmer assembly.
  • an electric dry shaver which incorporates one embodiment thereof is generally indicated by the reference numeral 10 (FIG.
  • Electric shaver 10 is of a usual type construction that includes a main casing section 11 and an upper cutter head supporting section 12 wherein is disposed a main cutter head assembly generally indicated by the reference numeral 15.
  • Cutter head assembly 15 is of a known type structure and includes a plurality of individual cutter units 18 mounted on a mounting plate 19 secured in a suitable fashion to wall portion 20 of the cutter head support section 12.
  • Cutter units 18 are of the general type shown in U.S. Pat. No. 2,793,430 to L. C. Carissimi dated May 28, 1957 and comprise outer cutters 22 in which are disposed movable inner cutters 23.
  • Inner cutters 23 are urged into cutting cooperation with outer cutters 22 by leaf springs 24 (partially shown in FIG. 2) which engage oscillator arms 26 which extend from a motor (not shown) in main casing 11.
  • oscillator arms 26 which extend from a motor (not shown) in main casing 11.
  • Upon operation of the motor inner cutters 23 are reciprocated by oscillator arms 26 to shear facial hairs that enter the path of the inner cutters 23 through slots 27 provided in outer cutters 22 of the cutter head assembly 15.
  • Trimmer device 30 (FIG. 1) is disposed beneath the main cutter head assembly within a cavity portion 32 provided in one face of casing l l. Trimmer device includes a main housing element 34 having a bottom which conforms to the outer surface of casing 11 and is comprised of surfaces 35 and 36 respectively.
  • Trimmer assembly 30 further includes a stationary cutter 38 mounted on a guard 39 and under which stationary cutter 38 is provided movable cutter 40 having teeth portions adapted for shearing engagement with the teeth of the stationary cutter 38.
  • An elongated spacer member 43 is provided between housing 34 and spaces cutter 40 from the inner face of element 34.
  • a drive member 44 is fitted between spacer 43 and movable cutter 40 and is provided with a drive head 45 (FIG. 8) fitted in driving connection with slot 47 of movable cutter 40.
  • drive member 44 The opposite end of drive member 44 is provided with arms 49 for engagement with a drive extension 50 from one oscillator arm 26 (FIG. 2).
  • Trimmer assembly 30 is hinged to casing l l by means of projections 56 formed on the walls of casing 11 (FIG. 7) extending in to hinge holes 57 (FIG. 8) in housing 34.
  • Torsion spring members 60 are located at opposite ends of housing 34 and have their bases coiled about hinge pins 56.
  • One leg 61 of each spring 60 engages wall 20 and a second leg 62 engages a projection 64 on guard 39. In this manner trimmer unit 30 is normally urged outwardly of cavity 32.
  • Means to maintain trimmer 30 in operative position to be described include a detent spring 65 secured'within assembly 30 and having a detenting end portion 66 projecting outwardly thereof for purposes to be hereinafter explained.
  • Detent 65 is secured to one end of guard 39 by portions 67 thereof threaded in slots 71 of guard 39.
  • a metallic elongated latch spring member 68 is disposed within casing 11 on the inner wall thereof and is locked thereto by press-fitting one end 69 thereof into a notched portion 70 of casing 11.
  • Spring 68 is urged in the direction of arrow A in FIG. 3 against a shaft portion 72 of a slidable button member 73 having an operative portion on the outer face of the casing 11.
  • the upper portion of spring member 68 engages a latch hook projection 74 on guard member 39 and maintains the trimmer assembly 30 in a locked non-operative position.
  • Torsion springs '60 operate to snap trimmer unit 30 into an operative position extending outwardly of cavity 32 with drive member 44 thereof engaging drive projection 50 (FIG. 2) of oscillator arm 26 for operation of cutter 40.
  • detent extension 66 of spring 65 in assembly 30 locks into a cut-out portion 76 in wall 20.
  • the novel trimmer unit has many advantages in use, one advantage is that a secure latching mechanism is provided for locking the trimmer device in operative and non-operative position. Means are provided for operating the same which does not interfere with the operation of the trimmer unit.
  • a trimmer device for an electric dry shaver including a casing having a main cutter head assembly and drive means therefor, said trimmer device comprising,
  • hinge means on said housing element and said casing providing for pivotal movement of the trimmer assembly into and out of said cavity to place said cutters in non-operative and operative positions
  • spring means carried by said housing element for normally biasing said element outwardly of said cavity to the operative position
  • said latch means include an elongated spring member having two ends, and a latch projection on said guard member, one end of said spring member engaging the latch projection and the opposite end secured to said casing, said spring member being normally biased into engagement with said latch projection, and h. spaced from said trimmer assembly a release means mounted on said casing and in engagement with said spring member between said spring memher ends to release said trimmer assembly to the operative position.
  • said release means include a button member slidably mounted on the outer face of said casing and having a shaft portion extending into said casing, the shaft portion adapted to engage and move said spring member out of latched engagement with said latch projection upon movement of said button.
  • a trimmer device for an electric dry shaver including a casing having a main cutter head assembly and drive means therefor, said trimmer device comprising,
  • hinge means on said housing element and said casing providing for pivotal movement of the trimmer assembly into and out of said cavity to place said cutters in non-operative and operative positions
  • spring means carried by said housing element for normally biasing said element outwardly of said cavity to the operative position
  • latch means on said shaver casing for maintaining said element in the non-operative position and having release means spaced from said trimmer assembly to release said assembly to the operative position
  • detent means carried by the trimmer assembly maintain said assembly in the operative position
  • said detent means includes a detent spring secured to said guard member, said detent spring having an end portion adapted to engage a portion of the shaver casing in the operative position of the trimmer assembly.
  • trimmer assembly is manually pivotable to the non-operative position about said hinge means to free said detenting end portion from said casing and restore said latch projections into engagement with said spring member.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
US479315A 1974-06-14 1974-06-14 Trimmer device for an electric dry shaver Expired - Lifetime US3911572A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US479315A US3911572A (en) 1974-06-14 1974-06-14 Trimmer device for an electric dry shaver
CA224,723A CA1023932A (en) 1974-06-14 1975-04-16 Trimmer device for an electric dry shaver
AU80189/75A AU494225B2 (en) 1974-06-14 1975-04-16 Trimmer device foran electric dry shaver
FR7517280A FR2274409A1 (fr) 1974-06-14 1975-06-03 Tondeuse pour rasoir electrique
GB2536775A GB1463924A (en) 1974-06-14 1975-06-13 Electric dry shaver incorporating a trimmer device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US479315A US3911572A (en) 1974-06-14 1974-06-14 Trimmer device for an electric dry shaver

Publications (1)

Publication Number Publication Date
US3911572A true US3911572A (en) 1975-10-14

Family

ID=23903510

Family Applications (1)

Application Number Title Priority Date Filing Date
US479315A Expired - Lifetime US3911572A (en) 1974-06-14 1974-06-14 Trimmer device for an electric dry shaver

Country Status (4)

Country Link
US (1) US3911572A (lv)
CA (1) CA1023932A (lv)
FR (1) FR2274409A1 (lv)
GB (1) GB1463924A (lv)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991464A (en) * 1975-06-04 1976-11-16 Sperry Rand Corporation Latch and release for a trimmer device in an electric dry shaver
JPS53128093U (lv) * 1977-03-15 1978-10-11
FR2482509A1 (fr) * 1980-05-15 1981-11-20 Matsushita Electric Works Ltd Rasoir electrique du type a mouvement alternatif comportant une lame de finition
JPS581487A (ja) * 1981-06-15 1983-01-06 松下電工株式会社 往復式電気かみそり
US4490905A (en) * 1982-02-09 1985-01-01 U.S. Philips Corporation Shaving apparatus
US4610085A (en) * 1984-01-05 1986-09-09 U.S. Philips Corporation Hair trimmer
JPS6211487A (ja) * 1986-07-18 1987-01-20 松下電工株式会社 往復式電気かみそり
US5704126A (en) * 1992-12-24 1998-01-06 Braun Aktiengesellschaft Dry shaving apparatus with a pivotally mounted long-hair trimmer
US20030029042A1 (en) * 2001-07-24 2003-02-13 John Wilcox Drive system for beard and mustache trimmer
US20040006873A1 (en) * 2002-03-01 2004-01-15 John Cutting Pivotable blade hair clipper and suction collection system
JP2007209612A (ja) * 2006-02-10 2007-08-23 Kyushu Hitachi Maxell Ltd せん断刃ユニット
US20090133264A1 (en) * 2006-06-21 2009-05-28 Reinhold Eichhorn Electric shaver with extendable longhair cutter unit
US20170334079A1 (en) * 2015-02-03 2017-11-23 Koninklijke Philips N.V. Device for removing lint from the surface of a fabric article
US11745368B2 (en) 2019-12-04 2023-09-05 Koninklijke Philips N.V. Personal care device having a main functional unit and an ancillary functional unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5463962A (en) * 1977-10-31 1979-05-23 Matsushita Electric Works Ltd Electric razor with trimmer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3714710A (en) * 1970-12-30 1973-02-06 Sperry Rand Corp Auxiliary cutter means for an electric dry shaver
US3763558A (en) * 1970-07-20 1973-10-09 Moser Gmbh K Electric shaver with concealable long hair trimmer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763558A (en) * 1970-07-20 1973-10-09 Moser Gmbh K Electric shaver with concealable long hair trimmer
US3714710A (en) * 1970-12-30 1973-02-06 Sperry Rand Corp Auxiliary cutter means for an electric dry shaver

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991464A (en) * 1975-06-04 1976-11-16 Sperry Rand Corporation Latch and release for a trimmer device in an electric dry shaver
JPS53128093U (lv) * 1977-03-15 1978-10-11
JPS5646682Y2 (lv) * 1977-03-15 1981-10-31
FR2482509A1 (fr) * 1980-05-15 1981-11-20 Matsushita Electric Works Ltd Rasoir electrique du type a mouvement alternatif comportant une lame de finition
JPS581487A (ja) * 1981-06-15 1983-01-06 松下電工株式会社 往復式電気かみそり
JPS6040310B2 (ja) * 1981-06-15 1985-09-10 松下電工株式会社 往復式電気かみそり
US4490905A (en) * 1982-02-09 1985-01-01 U.S. Philips Corporation Shaving apparatus
US4610085A (en) * 1984-01-05 1986-09-09 U.S. Philips Corporation Hair trimmer
JPS6211487A (ja) * 1986-07-18 1987-01-20 松下電工株式会社 往復式電気かみそり
JPS6472B2 (lv) * 1986-07-18 1989-01-05 Matsushita Electric Works Ltd
US5704126A (en) * 1992-12-24 1998-01-06 Braun Aktiengesellschaft Dry shaving apparatus with a pivotally mounted long-hair trimmer
US20030029042A1 (en) * 2001-07-24 2003-02-13 John Wilcox Drive system for beard and mustache trimmer
US6957490B2 (en) * 2001-07-24 2005-10-25 Rovcal, Inc. Drive system for beard and mustache trimmer
US20040006873A1 (en) * 2002-03-01 2004-01-15 John Cutting Pivotable blade hair clipper and suction collection system
US6935028B2 (en) * 2002-03-01 2005-08-30 John Cutting Pivotable blade hair clipper and suction collection system
JP2007209612A (ja) * 2006-02-10 2007-08-23 Kyushu Hitachi Maxell Ltd せん断刃ユニット
US20090133264A1 (en) * 2006-06-21 2009-05-28 Reinhold Eichhorn Electric shaver with extendable longhair cutter unit
US7707725B2 (en) * 2006-06-21 2010-05-04 Braun Gmbh Electric shaver with extendable longhair cutter unit
US20170334079A1 (en) * 2015-02-03 2017-11-23 Koninklijke Philips N.V. Device for removing lint from the surface of a fabric article
US11745368B2 (en) 2019-12-04 2023-09-05 Koninklijke Philips N.V. Personal care device having a main functional unit and an ancillary functional unit

Also Published As

Publication number Publication date
GB1463924A (en) 1977-02-09
CA1023932A (en) 1978-01-10
FR2274409A1 (fr) 1976-01-09
FR2274409B3 (lv) 1978-12-29
AU8018975A (en) 1976-10-21

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