EP0591238B1 - Elektrischer rasierapparat - Google Patents

Elektrischer rasierapparat Download PDF

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Publication number
EP0591238B1
EP0591238B1 EP92910387A EP92910387A EP0591238B1 EP 0591238 B1 EP0591238 B1 EP 0591238B1 EP 92910387 A EP92910387 A EP 92910387A EP 92910387 A EP92910387 A EP 92910387A EP 0591238 B1 EP0591238 B1 EP 0591238B1
Authority
EP
European Patent Office
Prior art keywords
pin
long
shaving apparatus
housing
coupler
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
EP92910387A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0591238A1 (de
Inventor
Matthias Wetzel
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
Publication of EP0591238A1 publication Critical patent/EP0591238A1/de
Application granted granted Critical
Publication of EP0591238B1 publication Critical patent/EP0591238B1/de
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
    • B26B19/02—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
    • B26B19/102—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 translated or slid into an operating position

Definitions

  • the invention relates to an electric shaver with at least one short-hair cutting system arranged on a housing and at least one actuating switch mounted displaceably on the housing for adjusting a long-hair cutting system from an "off" position to at least one operating position, at least one switching part via a gear with at least one the cutting systems are operatively connected.
  • An electric shaver with a short hair cutting system arranged on a housing and an actuating switch mounted displaceably on the housing for adjusting a long hair cutting system is already known (DE 37 29 257 C2).
  • the razor has an actuating switch with a translation for adjusting the long hair cutting system, so that with this configuration of the actuating switch relatively large switching paths have to be covered for adjusting the long hair cutting system.
  • an electric shaver is known with a short hair trimmer system arranged on the housing and an actuating switch slidably arranged on one housing side for adjusting a long hair trimmer pivotably arranged on the opposite housing side.
  • the long hair trimmer is included to control the swivel movement the actuation switch coupled via a multi-link mechanism, consisting of a pivotably mounted double-armed lever with arms of unequal length, of which the shorter lever arm is coupled to the actuation switch and the longer lever arm is coupled to one end of a vertically movable lever, the other end of which is pivoted to the lever Long hair trimmer acts.
  • the object of the invention is to design the actuation switch or the transmission elements between the actuation switch and the long-hair cutting system in such a way that the switching stroke of the actuation switch for adjusting the long-hair cutting system can be reduced.
  • the transmission is designed as a coupling transmission and has a pin provided in the region of the coupling point of the coupling transmission, which extends over a region on a straight guide and over another region on the curve part of the coupling curve.
  • Another significant advantage of the coupling mechanism according to the invention is that the actuation switch for the long hair cutter covers constant switching paths and the associated slide of the long hair cutting system can cover different switching paths adapted to the respective application. This significantly improves the ease of use and handling of the shaver for the user.
  • the actuating and frictional forces are reduced to a minimum by using a coupling gear.
  • a coupling gear By the Installation of the linkage gearbox allows a gearbox with a high transmission ratio to be accommodated in the housing of the shaving apparatus in the smallest space.
  • a curve movement of at least one gear part can be easily converted into a straight line movement without having to provide a larger installation space for the transmission gear.
  • the coupling gear can also be used to implement variable gear ratios adapted to the respective application.
  • the coupling gear has a rocker arm, which at one end via a hinge pin to the Coupling and is connected at its other end to a fixed point in the housing, and that the coupling gear has a crank which is connected at one end to the coupling via a hinge pin and at the other end to a fixed point in the housing. Due to the coupling mechanism designed as a four-link mechanism and the advantageous arrangement of the crank arm, large ratios can be achieved between the operating switch and the long-hair trimmer.
  • the coupling is connected via a driver pin to a link provided in the slide and that the crank has at least one driver pin which is received in a link provided in the long hair cutting system or in a provided switch plate of the actuating switch and the Transfer travel of the operating switch to the long hair trimmer system.
  • the link provided in the long hair cutting system is arranged at an angle, in particular at a right angle, to the path of movement of the long hair cutting system is.
  • a lateral movement of the pin can be compensated for in a simple manner when it moves from the straight section into a curved section of the link.
  • the angle to the trajectory of the long hair cutting system can be of different sizes.
  • driver pin arranged on the crank is operatively or indirectly connected to the actuation switch.
  • a switch plate is arranged on the actuating switch, which has an angled adjusting part, in which the link is provided for receiving the driver pin arranged on the crank.
  • FIG. 1 shows an electric shaver with a housing 1 and a short hair cutting system 2 and a first actuation switch 9 with an associated long hair cutting system 4 that is slidably arranged on the front side 3 of the housing 1.
  • the long hair cutting system 4 consists of a slide 15 and a long hair cutter 4 'slidably mounted therein.
  • the slider 15 is slidably received on the front of the housing 1 behind the housing wall 8.
  • the long hair cutting system 4 has a T-shaped plate 40.
  • the plate 40 of the long hair cutting system 4 is guided by the two guide parts 22 arranged at a distance from one another.
  • the long-hair trimmer 4 has on its front side two guide elements 31 arranged at a distance from one another, each with a guide groove 32, in each of which a guide part 22 is slidably received.
  • the two guide parts 22 are fixed to a plate 40 of the long hair cutting system 4.
  • the downwardly extending, elongate plate 40 is accommodated in an elongated hole opening 24 and a rectangular opening 30 so that it can move in height.
  • the elongated hole opening 24 and the opening 30 are located in the slide 15, which is slidably mounted on the front of the housing 1.
  • each guide pin 35 is fixedly connected to the right and left guide element 31 and the lower end in each case, provided in the slide 15 provided bore 29 slidably. If pressure is exerted on the long-hair trimmer 4 'from above in the "combi" position (see also FIG. 7), the long-hair trimmer 4' can move downward or dive away and thereby adapt optimally to the skin contour of a person, since the angle of attack of the long hair trimmer 4 'continuously adjusts to the outer contour.
  • the short hair cutting system or the shaving head 2 which is not shown pivotable in the drawing, can be pivoted relative to the housing 1 and is equipped with an upper knife 5 and a lower knife associated with the upper knife 5 and not visible in the drawing.
  • the shaving head 2 can be placed on the housing 1.
  • the lower knife 5 is driven directly or indirectly via an electric motor, not shown in the drawing.
  • the cutting blade of the long-hair cutter 4 'consisting of a cutting comb and an associated oscillating cutting blade is likewise driven by the electric motor (not shown in the drawing) and an oscillating bridge, of which the drive part 39 having a slot 41 is shown in the drawing.
  • a swing lever 37 pivotably mounted on the plate 40 which is coupled on the one hand to the cutting blade of the long-hair trimmer 4 'via a driver 38 and on the other hand to the drive part 39 via a pin 128 engaging in the slot 41, transmits the oscillating oscillating movement of the swing bridge to the cutting blade .
  • the actuating switch 9, by means of which the long hair cutting system 4 can be adjusted between three switching positions "1" to "3", is arranged so that it can be moved on the housing wall 8 of the shaving apparatus.
  • the switching position "1" corresponds to a rest position or “off” position and the switching position “2" corresponds to a "combination” position, in which the long-hair trimmer 4 'is floating and can slide downward when pressure is exerted on the long-hair trimmer 4'.
  • the switching position "3" corresponds to a "trim” position, in which the long hair cutting system 4, as will be explained in more detail below, is determined.
  • the actuating switch 9 is provided on its underside with a guide element 6 which can be adjusted into the positions “1, 2, 3” in an elongated hole opening 7 provided in the housing wall 8.
  • the actuating switch 9 is connected via the guide element 6 and via connecting pins to a switch plate 10 which has an angled actuating part 11 at its upper end with a link 50 for receiving a driver pin 52.
  • the driver pin 52 belongs to a crank 51 or a coupling gear 12.
  • the coupling gear 12 consists of a coupling 57, to which a rocker 58 is connected via a hinge pin 59 and a crank 51 is pivotally connected via a hinge pin 53.
  • the rocker arm 58 is pivotally mounted on a pin 54 'via a bore 54 in the housing wall 8, while the crank 51 is pivotably connected to the housing wall 8 via a pin 56.
  • a further pin 13 is provided on the coupling 57, which engages in a link 14 of the long hair cutting system 4 arranged in the slide 15.
  • the backdrop 14 extends approximately at right angles to the path of movement of the long hair cutting system 4, so that a coupling curve 60 described by the pin 13 can also be used in the curve area.
  • the coupling curve 60 has a straight guide 60 ′ and a curve part 60 ′′. If the operating switch 9 is adjusted from its lower position, it is possible that the pin 13 is still in the curve part 60 ′′. The transverse movement of the pin 13 can by the transverse Backdrop 14 are compensated for when the circularly driven crank 51 moves the pin 13 out of the curve part 60 ′′ of the coupling curve 60.
  • the oblique curve section 66 '' 'of the link guide 66 is curved in such a way that the long-hair trimmer 4' is continuously rotated in one or the other direction in an angular range of approximately 10 ° during its upward and downward movement (floating position).
  • the actuating switch 9 is moved into the "on" position.
  • the long-hair cutting system 4 coupled to the actuating switch 9 is switched on.
  • the actuation switch 9 covers a distance of approximately 5 mm and the pin also a distance of 5 mm, whereby it can already move into the curve part 60 ′′. This significantly improves the switching characteristic, since the switching paths of the actuating switch 9 are now very small overall. With the last-mentioned adjustment of the long hair cutting system 4 into the “trim” position or vice versa, one can manage with short travel ranges. However, it is possible to make the switching path length of the coupling point or the pin 13 different in size by appropriately arranging and designing the coupling gear, with no significantly larger installation space having to be made available for the coupling gear.
  • the coupling mechanism 12 When the operating switch 9 is moved from the “off” position to the first operating position (position “2"), the coupling mechanism 12 operates with a transmission ratio of 1: 2.5 and when the operating switch 9 is moved from the first operating position to a second operating position (position “3") with a gear ratio of 1: 1. As already mentioned, other gear ratios are possible.
  • the long hair trimmer 4 ' is pressed upwards by means of the two springs 36.
  • the upward movement of the long hair trimmer 4 ' is limited by two hooks 27 arranged laterally on the plate 40, which engage under the projections 28 provided on the slide 15.
  • the arranged on the plate 40 hook parts 27 are equipped with sliding surfaces which can be brought into contact with the slide 15 against the sliding surfaces provided on the slide 15 during the insertion of the plate 40 and thereby bend the hooks apart to such an extent that the plate is adjustable into a holding position.
  • the downward movement of the long hair trimmer 4 ' is limited when the lower edge 124 of the slide 40 bears against the edge 34 which is provided on the slide 15.
  • a distance of up to 10 mm is provided between the lower edge 124 of the slider 40 and the edge 34, so that the long hair trimmer 4 'can move up and down in this area in the floating position.
  • the slide switch 9 can be fixed by means of locking bolts 16 which are overlapped by a fork 17 of the switch plate 10 having knobs 127.
  • the long hair trimmer 4 'or the plate 40 is fixed by a lock 18 with respect to the lower part 4 "of the slider 15.
  • the lock 18 lies with its upper edge 18 'against a lower edge 40' of the plate 40.
  • the lock 18 is on the base slide or the lower part 4 ′′ of the slide 15 fastened and resilient (see. Fig. 4). If the long hair cutting system 4 is moved by the actuating switch 9 into the "trim” position, the lock 18 moves along a slope 20 provided in the slot 19, so that the lock 18 is moved into the locking position according to FIG.
  • the lock 18 is in an unlocked position in which the upper edge 18 'is moved away from the edge 40' of the plate 40 due to its spring force.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
EP92910387A 1991-06-03 1992-05-19 Elektrischer rasierapparat Expired - Lifetime EP0591238B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4117988 1991-06-03
DE4117988A DE4117988A1 (de) 1991-06-03 1991-06-03 Elektrischer rasierapparat
PCT/EP1992/001098 WO1992021485A1 (de) 1991-06-03 1992-05-19 Elektrischer rasierapparat

Publications (2)

Publication Number Publication Date
EP0591238A1 EP0591238A1 (de) 1994-04-13
EP0591238B1 true EP0591238B1 (de) 1996-02-07

Family

ID=6432966

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92910387A Expired - Lifetime EP0591238B1 (de) 1991-06-03 1992-05-19 Elektrischer rasierapparat

Country Status (7)

Country Link
US (1) US5423125A (ja)
EP (1) EP0591238B1 (ja)
JP (1) JP3363151B2 (ja)
AT (1) ATE133891T1 (ja)
DE (2) DE4117988A1 (ja)
HK (1) HK33597A (ja)
WO (1) WO1992021485A1 (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4336231C1 (de) * 1993-10-23 1994-05-26 Braun Ag Trockenrasierapparat mit einem Kurzhaarschneidsystem und einem verschiebbaren Langhaarschneidsystem
TW353631B (en) * 1995-09-29 1999-03-01 Sanyo Electric Co Electric razor
DE19822094C2 (de) * 1998-05-16 2000-03-02 Braun Gmbh Trockenrasierapparat
US6601302B2 (en) 2000-09-08 2003-08-05 Remington Corporation, L.L.C. Shaving systems and adjustable trimmers therefor
DE10217988A1 (de) * 2002-04-22 2003-11-13 Braun Gmbh Elektrisches Haarschneidegerät
US20080040927A1 (en) * 2006-08-17 2008-02-21 Tung Yan Lau Electric shaver and trimmer
DE102007005853A1 (de) * 2007-02-01 2008-08-07 Braun Gmbh Haarentfernungsgerät
DE102009030202A1 (de) 2009-06-24 2010-12-30 Braun Gmbh Elektrisch betriebener Rasierapparat
EP3354422B1 (en) 2017-01-26 2020-04-29 Braun GmbH Shaver with light source
US10915672B2 (en) * 2017-08-31 2021-02-09 Autodesk, Inc. Computer-implemented synthesis of a four-bar linkage
EP3539737A1 (en) 2018-03-16 2019-09-18 Koninklijke Philips N.V. A hair cutting device
EP3831555A1 (en) 2019-12-04 2021-06-09 Koninklijke Philips N.V. A shaver head for an electric shaver

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7007686A (ja) * 1970-05-28 1971-11-30
NL7007687A (ja) * 1970-05-28 1971-11-30
AT368057B (de) * 1980-04-03 1982-09-10 Payer Lux Elektroprod Elektrischer rasierapparat
DE3309221A1 (de) * 1982-03-15 1983-10-20 Kyushu Hitachi Maxell Ltd., Fukuoka Elektrischer rasierapparat
US4505036A (en) * 1982-03-15 1985-03-19 Kyushu Hitachi Maxell, Ltd. Electric shaver arranged to be tilted
DE3729257A1 (de) * 1987-09-02 1989-03-23 Braun Ag Trockenrasierapparat mit einem kurzhaarschneidsystem und einem verschiebbaren langhaarschneidsystem

Also Published As

Publication number Publication date
EP0591238A1 (de) 1994-04-13
JPH06507559A (ja) 1994-09-01
DE59205316D1 (de) 1996-03-21
HK33597A (en) 1997-03-27
WO1992021485A1 (de) 1992-12-10
JP3363151B2 (ja) 2003-01-08
DE4117988A1 (de) 1992-12-10
ATE133891T1 (de) 1996-02-15
US5423125A (en) 1995-06-13
DE4117988C2 (ja) 1993-03-18

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