US3768160A - Removable shaving-hood unit of a dry-shaving apparatus - Google Patents

Removable shaving-hood unit of a dry-shaving apparatus Download PDF

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Publication number
US3768160A
US3768160A US00139568A US3768160DA US3768160A US 3768160 A US3768160 A US 3768160A US 00139568 A US00139568 A US 00139568A US 3768160D A US3768160D A US 3768160DA US 3768160 A US3768160 A US 3768160A
Authority
US
United States
Prior art keywords
sleeve
casing
plate
lever
shaving
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
US00139568A
Other languages
English (en)
Inventor
W Bergsma
J Vaes
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.)
US Philips Corp
Original Assignee
US Philips 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 US Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of US3768160A publication Critical patent/US3768160A/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
    • B26B19/42—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards providing for straightening the hair to be cut, e.g. by means of bristles; providing for tensioning the skin, e.g. by means of rollers, ledges

Definitions

  • ABSTRACT A removable hood for a dry-shaving apparatus pro' vided with a vertically adjustable skin tightening member which is arranged to be locked against rotation and maintained in engagement with a separate member for vertical adjustment by spring force.
  • the invention relates to a removable shaving-hood unit for a dry-shaving apparatus comprising at least one shaving head and a surrounding circumferential skintightening member which is vertically adjustable relative to the shaving head.
  • a vertically adjustable tightening rim is described in US. Pat. No. 2,223,286.
  • the tightening-rim height to be used is adjustable by turning the rim.
  • Such turning of the tightening rim has the disadvantage that during use a height adjustment is hardly possible, because such a turning movement causes the skin to bulge.
  • the invention is characterized in that the skin tightening member, which is arranged so as to be locked against rotation, is maintained in engagement with a separate height-adjusting member by spring force.
  • the invention is further characterized in that the skin tightening member and a plate-shaped shaving head support, which carries the shaving head or heads, are interconnected by springs disposed between them and are arranged so as to be capable of sliding movement relative to one another; in the mounting position of the shaving-hood unit the plate-shaped shaving head support is maintained in resilient engagement with a vertically protruding rim of the apparatus casing by these springs.
  • This construction provides the advantage that the shear plate support may be mounted on the apparatus casing without further securing means.
  • An embodiment of the invention is characterized in the the sleeve-shaped skin-tightening member has the form of the substantially conical surface of a truncated cone, the upper end of which is vertically flanged over inwardly; the rounded junction between the flange and the conical surface skin-tightening rim, and an annular lower end which, in the mounted positionof the shaving hood unit, resiliently engages the upper surface of an'annular abutment which is rotatably supported in the apparatus casing and is vertically adjustable.
  • the vertically adjustable annular I abutment is spaced from the skin-tightening rim by a distance such that even during shaving a further refinement of the vertical adjustment of the skin-tightening rim is readily obtainable.
  • each rib which is provided on the inner wall of the sleeve-shaped skintightening member and protrudes inwardly, is provided near its upper end with a preferably rectangular recess in which the body of a substantially U-shaped spring is freely movable in a vertical direction; the limbs of this spring project upward along both sides of the rib and extensions of these limbs (bent over outwardly at right angles) pass through slots formed in lugs which are located on both sides of the rib and project from the plate-shaped shaving head support; These extensions then terminate in mutually diverging upwardly protruding further extensions the free ends of which resiliently engage the inner wall of the transverse end of the skin
  • the rib 10 has a preferably rectangular recess 19 formed in it; a body 20 of a substantially U-shaped spring 21 is freely movable vertically (see FlG. 3) in recess 19.
  • the two limbs 22 of the spring 21 project upwardly each along one side of the rib 10.
  • Outwardly bent extensions 23 of the limbs 22 pass though slots 24 in lugs 25 which are located on both sides of the rib 10 and protrude from the plate-shaped shaving head support 2, while after these extensions 23 have passed through the slots 24 they terminate in diverging upwardly projecting further extensions 26, the free ends of which resiliently engage the inner wall of the abutment rim 7.
  • the extensions 26 of the spring 21 press the plateshaped shaving-head support 2 down against the vertically protruding rim 35, while in the vertical adjustment of the tightening member 1 the body 20 of this spring is vertically movable in the recess 19 in the rib l 1.
  • This construction ensures that in any position of the tightening rim 7 the shear plate holder is maintained in resilient engagementwith the rim 35 of the apparatus casing.
  • the annular abutment 9 is shaped substantially in, the form of an inverted U in a cross-section taken through the axis of the annulus.
  • annular abutment at its outer wall 31 is provided with a projection which in the lowermost position of the tightening member registers with a digit zero indicated on a cover plate of the apparatus casing.
  • This cover plate of the apparatus casing is not shown in the Figures. Successive digits on this cover plate indicate the extent to which the tightening member is vertically adjusted.
  • the annular tightening member rests on a support 32 which is at a level relative to the apparatus casing which is not the same at all points, while the body of the abutment 9 is of varying thickness.
  • the shaving-hood unit comprises two plates, the outwardly flanged walls of the hood-shaped shear plates of the shaving heads 4 being vertically movable between the said plates.
  • the form of the plate-shaped shaving-head support 2 of the embodiment shown is triangular with rounded corners.
  • the rotary disc 17 is provided with a lug 33 which protrudes from the shaving-hood unit and by means of which the disc may be rotated.
  • a shaving hood unit comprising a top plate carrying at least one shaving head which plate and shaving head are positionable at a predetermined elevation relative to said casing, a sleeve having a bottom part,-and a top end formed as a rim that circumscribes said plate, the sleeve and plate resiliently secured together, means for releasably securing said sleeve to said casing coaxially therewith, first resilient means urging said sleeve axially downward relative to said casing, means for variably moving the sleeve upward relative to the casing while the plate is maintained at said predetermined elevation, such that said rim of the sleeve is positionable at varying elevations equal with and above said plate.
  • said means for releasably securing the sleeve to said casing comprises at least one first lever pivotally mounted on said casing, the lever having a top arm engagable to said sleeve and a bottom arm, second resilient means urging said lever to be pivoted so the top arm engages said sleeve and urges same downward, drive means movably mounted to said casing for engaging said bottom arm of the lever and pivoting the lever such that the top arm thereof is disengaged from said sleeve, and consequently the sleeve and top plate are removable from the casing.
  • Apparatus according to claim 1 further comprising means for fixing the minimum distance between the top of said casing and said top plate and shaving head while said first resilient means urges said sleeve and plate attached thereto downward, and third resilient means urging the plate downward relative to the top of the sleeve, the first resilient means having a greater spring constant than the third resilient means.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
US00139568A 1970-05-29 1971-05-03 Removable shaving-hood unit of a dry-shaving apparatus Expired - Lifetime US3768160A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7007872A NL7007872A (fr) 1970-05-29 1970-05-29

Publications (1)

Publication Number Publication Date
US3768160A true US3768160A (en) 1973-10-30

Family

ID=19810201

Family Applications (1)

Application Number Title Priority Date Filing Date
US00139568A Expired - Lifetime US3768160A (en) 1970-05-29 1971-05-03 Removable shaving-hood unit of a dry-shaving apparatus

Country Status (13)

Country Link
US (1) US3768160A (fr)
JP (1) JPS5239330B1 (fr)
AT (1) AT315675B (fr)
AU (1) AU2917571A (fr)
BE (1) BE767780A (fr)
CA (1) CA937390A (fr)
CH (1) CH538912A (fr)
DE (1) DE2121912C3 (fr)
ES (1) ES197911Y (fr)
FR (1) FR2093827A5 (fr)
GB (1) GB1348023A (fr)
NL (1) NL7007872A (fr)
SE (1) SE367341B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3992775A (en) * 1974-02-14 1976-11-23 U.S. Philips Corporation Electric shaver with adjustable skin-tightening means
US4250617A (en) * 1978-01-05 1981-02-17 U.S. Philips Corporation Shaving apparatus
AU699975B2 (en) * 1995-07-12 1998-12-17 Remington Corporation, L.L.C. Multi-purpose attatchment for ladies' shaver
US6568081B2 (en) 1999-05-17 2003-05-27 Benjamin J. Barish Shaving apparatus particularly useful for wet shaving with an electrical shaver
WO2004073937A1 (fr) * 2003-02-21 2004-09-02 Koninklijke Philips Electronics N.V. Ensemble oprationnel et dispositif comprenant un tel ensemble operationnel
US11975456B2 (en) 2018-11-05 2024-05-07 Koninklijke Philips N.V. Shaving apparatus with improved cap functionality

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0397016U (fr) * 1990-01-19 1991-10-04

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2223286A (en) * 1938-05-11 1940-11-26 Casco Products Corp Shaving machine
US2334254A (en) * 1940-01-20 1943-11-16 Groot Jan De Dry-shaving apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2223286A (en) * 1938-05-11 1940-11-26 Casco Products Corp Shaving machine
US2334254A (en) * 1940-01-20 1943-11-16 Groot Jan De Dry-shaving apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3992775A (en) * 1974-02-14 1976-11-23 U.S. Philips Corporation Electric shaver with adjustable skin-tightening means
US4250617A (en) * 1978-01-05 1981-02-17 U.S. Philips Corporation Shaving apparatus
AU699975B2 (en) * 1995-07-12 1998-12-17 Remington Corporation, L.L.C. Multi-purpose attatchment for ladies' shaver
US6568081B2 (en) 1999-05-17 2003-05-27 Benjamin J. Barish Shaving apparatus particularly useful for wet shaving with an electrical shaver
WO2004073937A1 (fr) * 2003-02-21 2004-09-02 Koninklijke Philips Electronics N.V. Ensemble oprationnel et dispositif comprenant un tel ensemble operationnel
US20060162166A1 (en) * 2003-02-21 2006-07-27 Koninklijke Philips Electronics N.V. Operating assembly and device including such an operating assembly
CN100382940C (zh) * 2003-02-21 2008-04-23 皇家飞利浦电子股份有限公司 一种操作组件和包括这种操作组件的装置
US11975456B2 (en) 2018-11-05 2024-05-07 Koninklijke Philips N.V. Shaving apparatus with improved cap functionality

Also Published As

Publication number Publication date
FR2093827A5 (fr) 1972-01-28
SE367341B (fr) 1974-05-27
AT315675B (de) 1974-06-10
DE2121912A1 (de) 1971-12-02
JPS5239330B1 (fr) 1977-10-04
BE767780A (fr) 1971-11-29
NL7007872A (fr) 1971-12-01
ES197911Y (es) 1975-11-16
CA937390A (en) 1973-11-27
GB1348023A (en) 1974-03-13
DE2121912B2 (de) 1980-04-10
ES197911U (es) 1975-06-01
CH538912A (de) 1973-07-15
AU2917571A (en) 1972-11-30
DE2121912C3 (de) 1980-12-04

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