US3793724A - A dryshaver with an adjustable protective sleeve - Google Patents

A dryshaver with an adjustable protective sleeve Download PDF

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Publication number
US3793724A
US3793724A US00263355A US3793724DA US3793724A US 3793724 A US3793724 A US 3793724A US 00263355 A US00263355 A US 00263355A US 3793724D A US3793724D A US 3793724DA US 3793724 A US3793724 A US 3793724A
Authority
US
United States
Prior art keywords
sleeve
housing
combination
shear head
circlip
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
US00263355A
Other languages
English (en)
Inventor
W Messinger
K Zimmerman
F Seiffert
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 US3793724A publication Critical patent/US3793724A/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
    • B26B19/3806—Accessories
    • B26B19/3813—Attachments
    • 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
    • B26B19/3806—Accessories
    • B26B19/382—Built-in accessories
    • 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

Definitions

  • ABSTRACT A dryshaver has a rod-shaped housing provided at one end with a -shear head which is driven by an electromotor.
  • a protective sleeve surrounds a portion of the housing and can be axially displaced between two positions in one of which it is retracted rearwardly of the shear head and in the other of which it projects forwardly of the shear head to'protect the same.
  • An actuator button of a switch for the current supply to the motor is interconnected with the sleeve to prevent the same from being withdrawn 'off the housing and is displaced in response to shifting of the sleeve to circuit making or breaking.
  • shear heads of dryshavers are highly susceptible to damage, particularly if they are of. the type in which a very thin flexible shear foil provided with a great number of holes overlies the cutting knives of the shear head. It is therefore well known to provide protective caps which are placed over the shear head when the shaver is not in use.
  • an object of the present invention to provide an improved dryshaver having protective means which not only reliably protects the shear head but also cannot become lost.
  • An additional object of the invention isto provide such an improved dryshaver which is of simple const'ruction.
  • Still another object of the invention is to provide such a dryshaver in which the protective means will move away from its position protecting the shear head and thus expose the same in automatic response to utilisation of the dryshaver for shaving purposes.
  • a dryshaver which, briefly stated, comprises a combination including a housing, a shear head on the housing and adapted for engagement with the skin of the user so as to shave hair from the skin and a drive provided in the housing and operatively associated with the shear head for driving the same.
  • the novel feature further comprises a protective sleeve provided on a housing and movable between at leastan advanced position in which it projects beyond and protects the shear head and a retracted position in which it is retracted from and exposes the shear head for engagement.
  • Means is provided which is operative for arresting the sleeve in at least the advanced and retracted positions thereof.
  • the construction according to the present invention affords a dryshaver which is simple, compact and easy to use and in which the protective sleeve moves from its advances position to its retracted position in automatic response to the dryshaver being placed against the skin of the user and a shaving pressure being exerted.
  • the displacement of the sleeve can be effected in any desired manner, for instance by turning in a helical path, but it is currently preferred for the sleeve to perform a purely linear movement because this permits the novel construction to be particularly simple.
  • the dryshaver may be of circular cross section that is both its housing and the sleeve may have such a configuration. This provides for a particularly compact construction which is especially desired for battery operated dryshavers intended for travel purposes. This can be further enhanced by providing the sleeve with an outer diameter corresponding to the maximum outer diameter of the dryshaver housing as will become evident subsequently.
  • the means for arresting the sleeve may be elastically yieldable and engage in appropriate recesses formed in the inner wall of the sleeve. It is particularly advantageous if such means is an actuating member or button of a switch which controls the supply of electrical energy to the drive motor, and which is moved to a position closing the energy supply circuit in response to displacement of the sleeve to retracted position and vice versa.
  • an elastically yieldable clamp in form of a circlip may be provided which is pushed onto the lesser-diameter housing portion between the sleeve and the other housing portion when the sleeve is in its advance position.
  • the circlip itself may be provided with a brush, that is it may be unitary therewith, or a separate brush may be provided and the circlip may have holding portions for releasably holding the brush.
  • the purpose of such a brush is to permit cleaning of the shear head to remove cut-off beard stubbles therefrom.
  • FIG. I is a simplified view, partly in longitudinal section, of a dryshaver according to one embodiment of the invention.
  • FIG. 2 is a side elevation of the dryshaver in FIG. 1 but illustrating a different operational position
  • FIG. 3 is a top-plan view of a component of the embodiment in FIGS. 1 and 2;
  • FIG. 4 is a view similar to FIG. 3 illustrating a somewhat different component.
  • the illustrated dryshaver has a housing of substantially circular cross section and comprise of a housing portion 1 and an axially adjacent housing portion 5.
  • the latter has a larger outer diameter than the portion I and there is thus formed at the juncture of the two portions a radial shoulder 15 having an end face 15a whih faces towards the free end of the housing portion 1.
  • a protective sleeve 2 which exteriorly surrounds the portion 1 of the housing and has an outer diameter corresponding to that of the portion 5.
  • the opposite ends of the sleeve are open and it will be seen that the sleeve 2 is concentric with the shear head 3 and is axially displaceable in the direction of the double-headed arrow A-B between the advanced position shown in FIG. 1 in which its projects beyond and protects the shear foil 4 and the head 3, and the retracted position shown in FIG. 2 in which the shear foil 4 is exposed for contact with the skin of a user.
  • Reference numeral 7 designates a drive motor having a fragmentarily illustrated output shaft 8 which, although this is not illustrated, will in conventional manner cooperate with the shear head for driving the same.
  • a switch 10, diagrammatically illustrated, is also provided and in the usual manner interposed in the electrical circuit connecting the motor 7 with the battery 6.
  • a push-button 9 serves, when depressed from the position shown in FIG. I, to energize the switch and thereby the motor. It is appropriately biased outwardly to the position shown in FIG. 1.
  • the inner surface of the sleeve 2 is provided with the recesses 11 and 12 of which the former is deeper than the latter, as seen in radial direction of the sleeve.
  • the pushbutton 9 engages in the recess 1 1 when the sleeve is in the position of FIG. 1, and enters into the recess 12 (Le. is inwardly depressed) when the sleeve is displaced axially in FIG.
  • the construction can be such that when the sleeve 2 is in the protective position shown in FIG. 1,
  • a clamp 17, here indicated as a circlip This is of elastically yieldable material, e.g. metal or plastic, and has for instance the configuration shown in FIG. 3.
  • the circlip 17 is pushed onto the housing portion 1 (see FIG. l)'it prevents displacing of the sleeve 2 from the position in FIG. I to the position in FIG. 2.
  • the biasing means biasing the button 9 outwardly can be made relatively weak.
  • To use the shaver it is merely necessary to snap the circlip 17 off the housing portion 1. When the shaver is to be put away the circlip 17 is snapped back into place, causing displacement of the sleeve 2 to the position shown in FIG. 1 and effecting de-energization of the motor 10.
  • a brush may be unitary with the circlip 17, that is bristles 18 may be secured to or embedded in the same.
  • FIG. 4 shows that the brush can also be a separate component, here illustrated with reference numeral 19.
  • the circlip 17a is provided with holding projections 20 which releasably hold the brush 19 so that the latter can be detached for use.
  • a combination comprising a housing having a circumferentially extending shoulder; a shear head on said housing and adapted for engagement with the skin of a user to shave hair from the skin; a drive in said housing and operatively associated with said shear head for driving the same; a protective sleeve on said housing and having an axial endface which faces towards said shoulder, said sleeve being movable between at least an advanced position in which it projects beyond and protects said shear head, and a retracted position in which it is retracted from and exposes said shear head for engagement; and means operative for arresting said sleeve in at least said advanced position thereof, including a resiliently yieldable clip removably surrounding said housing intermediate said shoulder and said endface.
  • said housing having a first and an axially adjacent second position of respectively lesser and greater outer diameter, said shoulder being provided at the juncture of said portion and said shear head being provided on said first portion; said clip being a circlip which surrounds said first portion intermediate said shoulder and said endface; and said sleeve surrounding said. first portion and having an outer diameter corresponding to that of said second portion.
  • said housing is elongated and bar-shaped, having a free endportion; said shear head being provided on said free end-portion and said sleeve being concentric with said shear head.
  • said sleeve having an inner circumferential surface provided with at least two recesses; and wherein said means comprises resiliently yieldable means adapted to engage in one or the other of said recesses depending upon said sleeve being located in said advanced or in said retracted position.
  • said drive including an electrical motor and a switch displaceable between a make and a break .condition for respectively energizing and de-energizing said motor; and wherein said means comprises an actuating portion associated with said switch for displacing the same to said make condition in response to movement of said sleeve to retracted position, and to said break condition in response to movement of said sleeve to advanced position.
  • said brush means is a discrete component; and further comprising holding portions on said circlip for removably holding said discrete component to said circlip.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
US00263355A 1972-02-05 1972-06-07 A dryshaver with an adjustable protective sleeve Expired - Lifetime US3793724A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2205421A DE2205421A1 (de) 1972-02-05 1972-02-05 Vorrichtung zum schutze des scherkopfes bei motorisch betriebenen trockenrasierapparaten

Publications (1)

Publication Number Publication Date
US3793724A true US3793724A (en) 1974-02-26

Family

ID=5835085

Family Applications (1)

Application Number Title Priority Date Filing Date
US00263355A Expired - Lifetime US3793724A (en) 1972-02-05 1972-06-07 A dryshaver with an adjustable protective sleeve

Country Status (7)

Country Link
US (1) US3793724A (enExample)
CH (1) CH542027A (enExample)
DE (1) DE2205421A1 (enExample)
FR (1) FR2183433A5 (enExample)
GB (1) GB1407994A (enExample)
IT (1) IT1060101B (enExample)
NL (1) NL7206971A (enExample)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242799A (en) * 1977-08-17 1981-01-06 Sharp Kabushiki Kaisha Car shaver and holder therefor
US4380121A (en) * 1980-04-03 1983-04-19 Payer-Lux Elektroprodukte Gesellschaft M.B.H. Electric shaver
US4918818A (en) * 1988-09-22 1990-04-24 Hsieh Yin Fei Multi-purpose massage shaver
US5261161A (en) * 1991-03-04 1993-11-16 Chulhee Lee Electric vacuum shaver
US6782625B1 (en) * 2002-06-20 2004-08-31 Raymond Electric (China) Ltd. Encased electric shaver
WO2006015703A1 (de) * 2004-08-04 2006-02-16 Braun Gmbh System mit einem elektrischen rasierapparat und einer führungseinrichtung
USD794871S1 (en) 2016-01-15 2017-08-15 Medline Industries, Inc. Clipper
USD795497S1 (en) 2016-01-15 2017-08-22 Medline Industries, Inc. Clipper
USD802215S1 (en) 2016-06-10 2017-11-07 Medline Industries, Inc. Clipper head
USD802214S1 (en) 2016-06-10 2017-11-07 Medline Industries, Inc. Clipper head
USD802216S1 (en) 2016-06-10 2017-11-07 Medline Industries, Inc. Clipper head
USD802217S1 (en) 2016-06-10 2017-11-07 Medline Industries, Inc. Clipper head
US20180161996A1 (en) * 2015-06-08 2018-06-14 Babyliss Faco Sprl Beard trimmer with one or more rotary heads surrounded by combs having a particular shape and provided with a comb protection position
US20180222066A1 (en) * 2015-06-08 2018-08-09 Babyliss Faco Sprl Beard trimmer with one or more rotary heads having a fixed blade with a particular shape

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI238233B (en) 2003-02-20 2005-08-21 Riken Kk Combined oil control ring

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2880504A (en) * 1957-09-24 1959-04-07 Finn Entpr Electric razor hair-cutting gauge
US3538604A (en) * 1968-11-27 1970-11-10 Schick Electric Inc Self-storing shaver

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2880504A (en) * 1957-09-24 1959-04-07 Finn Entpr Electric razor hair-cutting gauge
US3538604A (en) * 1968-11-27 1970-11-10 Schick Electric Inc Self-storing shaver

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242799A (en) * 1977-08-17 1981-01-06 Sharp Kabushiki Kaisha Car shaver and holder therefor
US4380121A (en) * 1980-04-03 1983-04-19 Payer-Lux Elektroprodukte Gesellschaft M.B.H. Electric shaver
US4918818A (en) * 1988-09-22 1990-04-24 Hsieh Yin Fei Multi-purpose massage shaver
US5261161A (en) * 1991-03-04 1993-11-16 Chulhee Lee Electric vacuum shaver
US6782625B1 (en) * 2002-06-20 2004-08-31 Raymond Electric (China) Ltd. Encased electric shaver
WO2006015703A1 (de) * 2004-08-04 2006-02-16 Braun Gmbh System mit einem elektrischen rasierapparat und einer führungseinrichtung
US20180161996A1 (en) * 2015-06-08 2018-06-14 Babyliss Faco Sprl Beard trimmer with one or more rotary heads surrounded by combs having a particular shape and provided with a comb protection position
US20180222066A1 (en) * 2015-06-08 2018-08-09 Babyliss Faco Sprl Beard trimmer with one or more rotary heads having a fixed blade with a particular shape
US10532474B2 (en) * 2015-06-08 2020-01-14 Babyliss Faco Sprl Beard trimmer with one or more rotary heads surrounded by combs having a particular shape and provided with a comb protection position
USD795497S1 (en) 2016-01-15 2017-08-22 Medline Industries, Inc. Clipper
USD794871S1 (en) 2016-01-15 2017-08-15 Medline Industries, Inc. Clipper
USD848073S1 (en) 2016-01-15 2019-05-07 Medline Industries, Inc. Clipper
USD802215S1 (en) 2016-06-10 2017-11-07 Medline Industries, Inc. Clipper head
USD802214S1 (en) 2016-06-10 2017-11-07 Medline Industries, Inc. Clipper head
USD802216S1 (en) 2016-06-10 2017-11-07 Medline Industries, Inc. Clipper head
USD802217S1 (en) 2016-06-10 2017-11-07 Medline Industries, Inc. Clipper head

Also Published As

Publication number Publication date
CH542027A (de) 1973-09-30
DE2205421A1 (de) 1973-08-09
NL7206971A (enExample) 1973-05-28
IT1060101B (it) 1982-07-10
FR2183433A5 (enExample) 1973-12-14
GB1407994A (en) 1975-10-01

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