EP0160861B1 - Scherkopfrahmen mit Auflauf- und Ablauframpen - Google Patents

Scherkopfrahmen mit Auflauf- und Ablauframpen Download PDF

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Publication number
EP0160861B1
EP0160861B1 EP85104533A EP85104533A EP0160861B1 EP 0160861 B1 EP0160861 B1 EP 0160861B1 EP 85104533 A EP85104533 A EP 85104533A EP 85104533 A EP85104533 A EP 85104533A EP 0160861 B1 EP0160861 B1 EP 0160861B1
Authority
EP
European Patent Office
Prior art keywords
head frame
locking elements
locking
housing
ramp
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
Application number
EP85104533A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0160861A1 (de
Inventor
Roland Ullmann
Kurt Beutel
Hans-Eberhard Heintke
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
Priority to AT85104533T priority Critical patent/ATE29688T1/de
Publication of EP0160861A1 publication Critical patent/EP0160861A1/de
Application granted granted Critical
Publication of EP0160861B1 publication Critical patent/EP0160861B1/de
Expired 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
    • B26B19/38—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
    • B26B19/3853—Housing or handle
    • B26B19/386—Means for attaching the head thereto

Definitions

  • the invention relates to a dry shaving apparatus with a housing, a removable shaving head frame carrying the upper knife and a device for locking and unlocking the shaving head frame, consisting of locking elements movably arranged in the housing, which, under spring pressure, protrude from the narrow sides of the housing and into the End cheeks of the shaving head frame arranged, operating elements acting on the locking elements.
  • the object of the present invention is to provide a device for locking and unlocking a shaving head frame which does not have the disadvantages mentioned above.
  • the device is intended in particular to ensure that the shaving head frame can be easily removed or placed on the housing.
  • ramp ramps leading to the locking position of the locking elements are provided on the inner walls of the end cheeks and in that radially movable operating elements are arranged in the end cheeks, the walls of which act on the locking elements in the actuated state and form discharge ramps for the locking elements.
  • run-up ramps provided on the inner walls of the end cheeks of the shaving head frame and leading to the latching position of the locking elements facilitate the placement of the shaving head frame on the housing in that the locking elements are pushed into the latching position over a longer distance with a corresponding incline, the resultant ends of the ramp ramp the heels leading to the cheeks can be advantageously used as locking stops for the locking elements.
  • the easy removal of the shaving head frame from the housing is achieved via the operating elements arranged in the forehead cheeks, which bend or rotate under the action of pressure around their attachment point and in this state form discharge ramps for which, during the course of this process, locking elements are pushed out from the locking positions.
  • the operating elements pressed into the shaving head frame come into contact with the locking elements at an angle, as a result of which the force component resulting from this angular position pushes the shaving head frame away from the housing via the discharge ramps.
  • the control element preferably consists of a resilient or pivotally mounted lever arm which is arranged in a recess provided in the front cheek of the shaving head frame.
  • one end of the lever arm is fastened to a transverse web provided in the recess and, with its end acting on the locking element, lies against the inner wall of the forehead cheek in the idle state.
  • the inner wall of the lever arm serves as a discharge ramp, the inclination of which results according to the invention during the actuation process of the lever arm as a function of its radial deflection.
  • the ramp inclination of the discharge ramp of the lever arm can preferably be changed beyond the blocking effect of the discharge ramp.
  • the particular advantage of this measure is the fact that the separation process of the shaving head frame and the housing can be accelerated while the locking elements slide along the discharge ramps of the lever arms by increasing the radial deflection of the lever arms and the resulting change in the ramp inclination.
  • a ramp is provided on both sides of an operating element on the end cheeks of the shaving head frame.
  • the walls leading from the slope end of the discharge ramps to the inner walls are preferably designed as detent stops for the locking elements.
  • FIG. 1 shows a dry shaving apparatus with a shaving head frame 2 which can be removed from a housing 1.
  • a shaving head frame 2 which can be removed from a housing 1.
  • an upper knife 3 is fastened, which interacts with a lower knife 4, which is set in a reciprocating motion by a motor, not shown, housed in the housing 1, via a rocker arm 5.
  • a helical spring 6 presses the lower knife 4 against the upper knife 3 in a known manner.
  • the end faces 7 and 8 of the housing 1 and the end cheeks 20, 21 of the shaving head frame 2 are Identical design, so that only one of the end faces with one of the front cheeks is referred to and described in more detail below.
  • locking elements 9 protrude from the two end faces 7 and 8 of the housing 1. 2, together with the compression springs 11 acting on them, are accommodated in recesses 13 in the housing 1 and by means of resilient locking lugs 15 which engage in grooves 17 of a predetermined length provided in the walls of the recesses 13 secured against falling out of the recesses 13 and rotation.
  • the end of the locking elements 9 protruding from the recesses 13 is conical, the cone tip being flattened or rounded.
  • the wall of the housing 1 is slightly offset inwards in the area of the shaving head frame 2, whereby a circumferential ledge 19 is formed which serves as a deflection for the shaving head frame 2 when it is placed on the housing 1.
  • narrow U-shaped recesses 22 are provided, running in the longitudinal direction of the end cheeks and from the end of the shaving head frame 2 seated on the ledge 19, leading to the level of the locking elements 9.
  • an operating element 24 in the form of an elongated button, rotatable or, as shown, resilient.
  • a wide transverse web 42 is provided in the recesses 22, to which the operating elements 24 made of resilient material are fastened, e.g. through a clip connection.
  • the crossbars 24 can also be mounted as a round rod and rotatably in the recesses in order to rotate a deflection, e.g. rigidly designed controls.
  • control elements 24 facing away from the ledge 19 lie on the one hand on the locking elements 9 and on the other hand on the inner walls 26 of the end cheeks 20 and 21, the control elements 24 and the inner walls 26 being provided with interlocking shoulders 28 and 30 in the contact area.
  • Elevations 32 are provided on the operating elements 24, which protrude in the locked state of the shaving head frame 2 and the housing 1 from the recesses 22 or from the outer contour of the front cheeks 20 and 21.
  • the elevations 32 identify the pressure area for the unlocking process on the operating elements 24.
  • ramp ramps 34 and 35 are formed on the inner walls 26 with a predetermined slope.
  • the run-up ramps 34 and 35 end in the area of the locking elements 9.
  • the operating elements 24 By actuating the operating elements 24 provided in the end cheeks 20 and 21 via the elevations 32, they bend, as can be seen in FIG. 3, radially inward about the transverse webs 42 into the shaving head frame 2 and press the locking elements 9 against the pressure of the springs 11 away from the detent stops 38 and 39 into the recesses 13.
  • the walls of the operating elements 24 acting on the locking elements 9 assume an inclined position corresponding to the radial deflection and in this way form discharge ramps 44 for the locking elements 9. If the discharge ramps 44 and the ramp ramps 34 and 35 are on the same level, the unlocked ones slide Locking elements 9 along the discharge ramps under the action of force components which result from the actuating pressure exerted on the operating elements 24.
  • the shaving head frame 2 stands out from the ledge 19 of the housing 1. As the operating elements 24 deflect further during this sliding process, the inclination of the downward ramps is amplified, which has an accelerating effect on the sliding process.
  • the unlocking process is initially supported and facilitated by the fact that, in the locked state of the shaving head frame 2 on the housing 1, the existing contact pressure of the lower knife 4 on the upper knife 3 fastened in the shaving head frame 2 can also be used.
  • the operating elements 24 are in the position shown in FIG. in contact with the inner walls 26 of the end cheeks 20 and 21.
  • the shaving head frame 2 is pushed over the recessed area of the housing 1, the locking elements 9 coming into contact with the run-up ramps 34, 35, the gradual gradients provided for the locking elements 9 against the pressure of the Push the compression springs 11 into the recesses 13.
  • the compression springs 11 press the locking elements 9 partially out of the recesses 13 into the latching position, this process being supported by the obliquely designed latching stops 38 and 39 and the inclined surfaces provided on the locking elements 9 .
  • FIG. 4 shows part of the housing 1 of the razor with a locking element 9 protruding from the end face 8, the ends of which are chamfered and extend transversely to the end face.
  • An identically designed locking element is provided in the end face 7.
  • the end cheeks 20 and 21 of the shaving head frame 2 are connected to one another via a front wall 36 and a rear wall 37 shown in broken lines.
  • two run-up ramps 34 and 35 are provided, with an increasing gradient in the removal direction.
  • detent stops 38 and 39 the walls of which are chamfered, are produced accordingly the slope of the ends of the locking elements 9, which come to rest in the locking position on these detent stops.
  • Between the two ramp ramps 34 and 35 is the resilient or pivotable in a U-shaped recess.
  • Operating element 24 is arranged, the end of which in the removal direction lies either against the inner wall 26 of the end cheek 20 or, as shown here, against the immovable foot part of a further operating element 25.
  • the end cheek 21, whose inner wall cannot be seen due to the perspective illustration, has an identical design to the inner wall 26 of the end cheek 20. This also applies to the outer walls of the end cheeks 21 and 20 which only show the operating elements 24 and 25 with the respective elevations 32 and 33 running in the longitudinal direction of the end cheeks.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Multi-Conductor Connections (AREA)
EP85104533A 1984-04-21 1985-04-15 Scherkopfrahmen mit Auflauf- und Ablauframpen Expired EP0160861B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85104533T ATE29688T1 (de) 1984-04-21 1985-04-15 Scherkopfrahmen mit auflauf- und ablauframpen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3415121 1984-04-21
DE3415121A DE3415121C2 (de) 1984-04-21 1984-04-21 Abnehmbarer Scherkopfrahmen

Publications (2)

Publication Number Publication Date
EP0160861A1 EP0160861A1 (de) 1985-11-13
EP0160861B1 true EP0160861B1 (de) 1987-09-16

Family

ID=6234179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85104533A Expired EP0160861B1 (de) 1984-04-21 1985-04-15 Scherkopfrahmen mit Auflauf- und Ablauframpen

Country Status (7)

Country Link
US (1) US4606122A (enrdf_load_stackoverflow)
EP (1) EP0160861B1 (enrdf_load_stackoverflow)
JP (1) JPS61385A (enrdf_load_stackoverflow)
AT (1) ATE29688T1 (enrdf_load_stackoverflow)
CA (1) CA1235568A (enrdf_load_stackoverflow)
DE (2) DE3415121C2 (enrdf_load_stackoverflow)
SG (1) SG32989G (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS642682A (en) * 1987-02-20 1989-01-06 Matsushita Electric Works Ltd Electric razor
AT387929B (de) * 1987-04-24 1989-04-10 Philips Nv Trockenrasierapparat mit mindestens einem verschiebbaren rolladen
US4858319A (en) * 1987-11-09 1989-08-22 Unique Knife Manufacturing Corp. Apparatus for ensuring that a knife is opened in a desired orientation
US5014428A (en) * 1989-03-06 1991-05-14 Kyushu Hitachi Maxell, Ltd. Rotary type electric razor
AT398720B (de) * 1992-07-24 1995-01-25 Koninkl Philips Electronics Nv Rasierapparat mit einem scherkopfrahmen und einem an diesen angefederten folienrahmen
DE4410543C1 (de) * 1994-03-26 1994-12-22 Braun Ag Trockenrasierapparat mit Obermesser-Rahmenverriegelung
KR200396685Y1 (ko) * 2005-06-21 2005-09-26 오태준 이단걸림 외도대를 구비한 전기면도기
JP2022155347A (ja) * 2021-03-30 2022-10-13 パナソニックＩｐマネジメント株式会社 電気かみそり

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734266A (en) * 1956-02-14 schreyer
US2246586A (en) * 1939-11-09 1941-06-24 Gillette Safety Razor Co Dry shaving cutter mount
US2561241A (en) * 1948-04-28 1951-07-17 Remington Rand Inc Electric dry shaver
US2661531A (en) * 1950-01-04 1953-12-08 Remington Rand Inc Electric dry shaver construction
NL110300C (enrdf_load_stackoverflow) * 1960-01-11
US3105298A (en) * 1960-01-11 1963-10-01 Sperry Rand Corp Electric shaver cutter drive mechanism
US3092905A (en) * 1961-04-03 1963-06-11 Ever Ready Razor Products Ltd Dry shaver with flexible shear plate and means supporting the shear plate
US3369294A (en) * 1965-10-23 1968-02-20 Timac Inc Power driven wet shaver
NL7406636A (nl) * 1974-05-17 1975-11-19 Philips Nv Ontgrendeling scheerhoofd.
NL7406635A (nl) * 1974-05-17 1975-11-19 Philips Nv Ontgrendeling scheerhoofd.
DE2843657A1 (de) * 1978-10-06 1980-04-10 Braun Ag Trockenrasierapparat mit einem scherkopfrahmen und einem in diesen einsetzbaren hilfsrahmen

Also Published As

Publication number Publication date
SG32989G (en) 1989-11-17
US4606122A (en) 1986-08-19
DE3560618D1 (en) 1987-10-22
DE3415121A1 (de) 1985-10-31
ATE29688T1 (de) 1987-10-15
DE3415121C2 (de) 1986-06-12
CA1235568A (en) 1988-04-26
JPS61385A (ja) 1986-01-06
JPH0582237B2 (enrdf_load_stackoverflow) 1993-11-18
EP0160861A1 (de) 1985-11-13

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