EP0474798A1 - Cadre articule pour rasoir a sec. - Google Patents

Cadre articule pour rasoir a sec.

Info

Publication number
EP0474798A1
EP0474798A1 EP90917754A EP90917754A EP0474798A1 EP 0474798 A1 EP0474798 A1 EP 0474798A1 EP 90917754 A EP90917754 A EP 90917754A EP 90917754 A EP90917754 A EP 90917754A EP 0474798 A1 EP0474798 A1 EP 0474798A1
Authority
EP
European Patent Office
Prior art keywords
frame
shaver according
bearing
dry shaver
connecting element
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.)
Granted
Application number
EP90917754A
Other languages
German (de)
English (en)
Other versions
EP0474798B1 (fr
Inventor
Hans-Eberhard Heintke
Robert White
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 EP0474798A1 publication Critical patent/EP0474798A1/fr
Application granted granted Critical
Publication of EP0474798B1 publication Critical patent/EP0474798B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B26B19/046—Cutters being movable in the cutting head
    • 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
    • B26B19/26—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the type performing different methods of operation simultaneously, e.g. reciprocating and oscillating; of the type having two or more heads of differing mode of operation

Definitions

  • the invention relates to a dry shaving apparatus with a drive provided in a housing, a shaving head frame arranged on the housing, a pair of shaving heads running parallel to one another in the longitudinal direction, each consisting of an upper knife and a lower knife are movable in the vertical direction relative to and parallel to one another, a first articulated frame arranged in the shaving head frame and carrying the upper knives for controlling the relative movement of the upper knives and a second articulated frame carrying the lower knives, which is coupled to a drive element of the drive.
  • a dry shaver of the type mentioned is known from EP 0267044 AI.
  • the articulated frame arranged between the drive lever and the two lower knives outside the housing consists of a bearing block pivotally articulated on the drive lever transversely to the longitudinal axis of the lower knives with a bearing bore running parallel to the longitudinal axis of the lower knives, a rigid frame pivotably mounted in this bearing bore, on the latter outer end faces each have two bearing bolts and two mutually parallel, U-shaped supports, the support legs of which are pivotally mounted on the bearing bolts of the rigid frame at the ends by means of bearing bores.
  • On the top of each U-shaped carrier a lower knife is attached with the interposition of a leaf spring.
  • the object of the invention is to provide, for a shaving apparatus of the type mentioned at the outset, a control for the two lower knives running in the longitudinal direction, by means of which the guidance of the lower knives in the vertical direction is improved.
  • this object is achieved in a device of the type mentioned at the outset in that the second articulated frame consists of a frame which is pivotally coupled to the drive lever about the longitudinal axis xx, two which are coupled to the frame by means of rotary joints, relatively and parallel to one another movable support elements, a connection element arranged between the support elements and an articulated connection between the connection element and the respective support element.
  • the formation and mounting of the second articulated frame on the drive element protruding from the housing of the dry shaving apparatus ensures an exact parallel coupling and alignment of the two lower knives on the support elements of the second articulated frame assigned to them and an exact parallel movement of the two lower knives relative to one another in the vertical direction and, moreover, a linear oscillating movement in the horizontal direction.
  • the two lower knives are then linearly driven via the vertically movable support elements of the second articulated frame while maintaining the parallel arrangement.
  • the coupling of the lower knives by means of the second articulated frame makes it easier to remove and put on the shaving head frame, which is equipped with upper knives that can be moved in the vertical direction relative to one another, from or onto the housing of the shaving apparatus.
  • the swivel joints are made of. bearing bores arranged in the respective end walls of the carrier elements and formed by bearing bolts arranged on the frame and engaging in these bearing bores.
  • the articulated connection between the connecting element and the respective support element is preferably formed by film hinges.
  • the rotary joints and the joint connection of the carrier element with the connecting element are on a common vertical axis yy and the rotary joints as well as the articulated connection of the carrier element with the connecting element are arranged on a common vertical axis zz running parallel to the axis yy.
  • the drive lever is expediently coupled to the frame by means of two swivel connections.
  • the swivel connections are preferably formed from balls mounted in the end faces of the drive lever and into bearing shells molded into the inner sides of the end walls of the frame.
  • at least one of the balls is acted upon by a strike disposed in 'the drive lever spring.
  • the bearing bolts are arranged in pairs on the frame, projecting opposite each other from the outer sides of the end walls of the frame.
  • an isosceles triangle is formed by the arrangement and the distance of the respective bearing shell from the respective bearing bolts arranged in pairs.
  • the connecting element is arranged on the ends of the carrier elements facing the lower knives and is separated from the end walls of the carrier elements by a gap.
  • a rectangular recess is formed in each of the longitudinal side walls of the connecting element.
  • a coupling arm which extends in the vertical direction, is preferably formed on each carrier element, lying on the respective axis yy and zz.
  • FIG. 1 shows an exploded view of a shaving head frame which can be placed on a housing
  • FIG. 2 shows an exploded view of the upper part of a housing with a second articulated frame and a lower knife
  • Fig. 3 is a side view of the frame with a partial section
  • FIG. 6 is a top view of the connecting element with articulated support elements
  • FIG. 8 shows a cross section through the carrier elements, the coupling arms and the connecting element.
  • the housing of a dry shaving apparatus with 1 is only partially shown, the drive element with 4 protruding from the upper housing side 2 out of the opening 3, the shaving head frame with 7, the first articulated frame with 8 and the Subframe designated 9.
  • the two opposite end faces of the first articulated frame 8 each consist of a pair of end face walls 8.1, 8.2 and 8.3, 8.4, each of which is articulated to one another by a pair of transverse joints 10, 11, 12, 13, for example by means of film hinges.
  • the side walls 8.1 and 8.3 are connected to one another via two horizontally running side walls (not visible), to which the arched shear foil 14 is attached.
  • the side walls 8.2 and 8.4 are likewise connected to one another via two horizontally running side walls, to which the arched clamped shear foil 15 is fastened and of which the side wall denoted by 16 is visible.
  • a bearing pin is arranged on the end faces of the transverse joints 10, 11, 12 and 13, of which the bearing pins 17, 18 arranged on the transverse joints 10 and 11 can be seen from the illustration.
  • the bearing bolts 17 and 18 lie on a common axis running in the vertical direction and form an isosceles triangle with the film hinge joints of the respective transverse joints 10 and 11.
  • the invisible end face of the first joint frame is structurally identical to the end face shown visibly.
  • the auxiliary frame 9 serves to mount and fasten the first articulated frame 8 in the shaving head frame.
  • the subframe 9 is provided with six recesses 19 to 24 running in the vertical direction.
  • the recesses 19 and 20 formed in the end faces 25 and 26 serve to mount the first articulated frame 8 by means of the correspondingly shaped plug-in plates 27 and 28, which are each provided with two bearing bores 29, 30 and 31, 32 for receiving the at the Cross joints 10, 11 and 12, 13 located bearing bolts.
  • FIG. 2 shows the upper part of the housing 1 and the second articulated frame 40, consisting of the frame 41 and the support elements 43 and 44 coupled by means of a connecting element 42.
  • the housing 1 consists of a sleeve 45 surrounding the electric drive.
  • the upper side 2 of the housing has an elongated opening 3, through which the linearly oscillating drive element 4 of the electric drive is passed, surrounded by a seal, not shown here.
  • the drive element 4 is T-shaped.
  • a ball 48 is arranged, by means of which the frame 41 provided with bearing shells 49, 50 - see FIG. 3 - is pivotably mounted transversely to the longitudinal axis x - x on the drive element 4.
  • the frame 41 provided with bearing shells 49, 50 - see FIG. 3 - is pivotably mounted transversely to the longitudinal axis x - x on the drive element 4.
  • at least one of the balls 48 is slidably mounted in the horizontal leg against the pressure of a spring (not shown). Instead of the balls
  • the frame 41 can also be arranged bearing pins with a spherical end face in the horizontal leg.
  • the frame 41 according to FIGS. 2 and 3 consists of a parabolic housing 51, on the housing walls 52 to 55 of which parallel to the longitudinal axis xx, bearing eyes 52 to 55 protrude beyond the respective end wall 56, 57 of the frame 41.
  • a bearing pin 58 to 61 protruding from the bearing eyes is fastened in each of the bearing eyes 52 to 55 in order to form a swivel joint with the bearing bores 66 to 69 provided in the end walls 62 to 65 of the carrier elements 43 and 44.
  • the lower knives 74 are mounted on the respective coupling arm 72, 73 so as to be vertically movable by means of a pin 76 slidably mounted in a vertical slot 75 against the pressure of a spring (not shown in the illustration).
  • FIG. 3 shows the frame 41 with a partial opening, whereby on the one hand the bearing eye 53 protruding on the wall of the housing 51 opposite the end wall 56 with the bearing bolt 59 fastened therein and on the other hand that on the opposite wall of the housing 51 opposite the end wall 57 protruding molded bearing eye 54 with bearing bolt 61 fastened therein is visible.
  • the bearing shells 49 and 50 molded into the respective end wall 56, 57 on the inside thereof have an inwardly curved shape for the purpose of mounting the balls 48 arranged on the drive element 4.
  • the respective end walls 56, 57 are designed to run obliquely from the inside to the outside.
  • Fig. 4 shows a section AA through the frame 41.
  • the bearing eyes 54, 55 are formed opposite to each other, each with a bore 79, 80 for receiving the bearing bolts 60 and 61 shown in Figures 2 and 3.
  • the bearing shell 50 formed on the inside of the end wall 57 and the sliding wall 78 are shown in a visible manner.
  • FIG. 5 shows a view of the end wall 56, with bearing eyes 52, 53 integrally formed on the wall of the housing 51 opposite one another, with holes 81, 82 arranged in the bearing eyes, in which the bearing bolts 58, 59 are fastened.
  • FIG. 6 shows a view - see FIG. 2, arrow direction A - of the connecting element 42 and of the carrier elements 43, 44 articulated on its longitudinal sides by means of a hinge connection consisting of film hinges 83 to 86.
  • Each of the carrier elements 43, 44 consists of a parallel to the longitudinal axis extending side wall 87, 88 and on the side walls 87, 88, each end at right angles to the longitudinal axis xx, molded end walls 62, 65 and 63, 64.
  • the film hinges 83 and 86 and 84 and 85 are each separated from one another by a rectangular recess 93 and 94 formed in the connecting element 42.
  • the depth T of the recesses 93 and 94 is dimensioned such that the respective coupling arm 72 and 73, which is formed on the carrier elements 43 and 44 and projects into the recesses 93 and 94, the relative movement of the in the vertical direction Carrier elements 43, 44 can follow unhindered.
  • On the The top of the coupling arm 72 and the coupling arm 73 are each formed with two cylindrical bolts 95, 96 and 97, 98 for the purpose of holding springs acting on the respective lower knife 74 (not shown).
  • Fig. 7 shows a view of the end walls 62 and 63 of the frame 41.
  • the end walls 62 and 63 are separated from one another by the gap 89 extending in the vertical direction, the width B of which is dimensioned such that the relative movement of the carrier elements taking place in the vertical direction 43, 44 can take place without hindrance.
  • FIG. 8 shows a section BB (FIG. 6) through the carrier elements 43 and 44 and through the connecting element 42.
  • the bearing bore 69 arranged in the end wall 65 and the film hinge connecting the carrier element 43 with the connecting element 42 are located 86 on the vertical axis yy and the bearing bore 68 arranged in the end wall 64 and the film hinge 85 connecting the carrier element 44 with the connecting element 42 on the vertical axis zz running parallel to the vertical axis yy.
  • the vertical axis y-y runs through the coupling arm 72 formed on the carrier element 43, and the vertical axis z-z runs through the coupling arm 73 formed on the carrier element 44.
  • the group consisting of film hinges articulation of the connecting element 42 with the Trä 'ger instituten 43 and 44 ent is a container-like component which is produced from plastic in an injection molding process and the after assembly with the frame 41 due to the out of the bearing bores 66 to 69 and Bearing bolts 58 to 61 formed pivot joints ensure a movement of the carrier elements 43 and 44 which runs in the vertical direction relative to and parallel to one another, including the mounting of the frame 41 on the drive element 4 which is pivotable about the longitudinal axis xx.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)

Abstract

Un rasoir à deux têtes comprend un premier cadre articulé (7) pour le support des lames supérieures (14, 15), agencé dans le cadre de la tête tondeuse (8), et qui commande un mouvement relatif parallèle des lames supérieures (14, 15) dans le sens vertical, et un deuxième cadre articulé (40) de commande asservie des lames inférieures (76) correspondant aux lames supérieures (14, 15).
EP90917754A 1989-06-01 1990-05-21 Cadre articule pour rasoir a sec Expired - Lifetime EP0474798B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3917849A DE3917849C1 (fr) 1989-06-01 1989-06-01
DE3917849 1989-06-01
PCT/DE1990/000522 WO1990014933A1 (fr) 1989-06-01 1990-05-21 Cadre articule pour rasoir a sec

Publications (2)

Publication Number Publication Date
EP0474798A1 true EP0474798A1 (fr) 1992-03-18
EP0474798B1 EP0474798B1 (fr) 1994-05-11

Family

ID=6381829

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90917754A Expired - Lifetime EP0474798B1 (fr) 1989-06-01 1990-05-21 Cadre articule pour rasoir a sec

Country Status (6)

Country Link
US (1) US5231761A (fr)
EP (1) EP0474798B1 (fr)
JP (1) JP2667292B2 (fr)
AT (1) ATE105525T1 (fr)
DE (1) DE3917849C1 (fr)
WO (1) WO1990014933A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5398412A (en) * 1992-04-23 1995-03-21 Matsushita Electric Works, Ltd. Reciprocatory dry shaver
JP4862768B2 (ja) 2007-07-12 2012-01-25 パナソニック電工株式会社 電気かみそり
US8801929B2 (en) * 2007-07-18 2014-08-12 Evoqua Water Technologies Llc Trash tolerant filter support for a disc filter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4292737A (en) * 1978-12-11 1981-10-06 The Gillette Company Dry shaver with differentially biased inner cutter and base members
JPS6266882A (ja) * 1985-09-20 1987-03-26 松下電工株式会社 往復駆動装置の防振装置
DE3610772C1 (de) * 1986-03-29 1987-06-04 Philips Patentverwaltung Kleines Haushaltsgeraet,das mittels eines Einphasensynchronmotors angetrieben ist
DE3610736A1 (de) * 1986-03-29 1987-10-01 Braun Ag Elektrischer rasierapparat mit einem schwenkbaren scherkopfsystem
GB8626631D0 (en) * 1986-11-07 1986-12-10 Gillette Co Dry shavers
US4825542A (en) * 1987-01-30 1989-05-02 Remington Products, Inc. Electric dry shaver

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9014933A1 *

Also Published As

Publication number Publication date
WO1990014933A1 (fr) 1990-12-13
US5231761A (en) 1993-08-03
DE3917849C1 (fr) 1990-11-29
EP0474798B1 (fr) 1994-05-11
JPH04505868A (ja) 1992-10-15
JP2667292B2 (ja) 1997-10-27
ATE105525T1 (de) 1994-05-15

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