DE1934774A1 - Movable coupling between one end of a drive axle and a cutting element - Google Patents

Description

, Ko. PHN-3230
8, July 1969

·· ;! i clio coupling between one end of a drive axle and f? in fm step tnlpment ".

The invention relates to an ethene dry shaver with at least one 'through a drive' arhsß operated on the shear head f ', * (Irr a.o. a ScherpJ at te, · tiie take up an inclined position with respect to the drive axle can, and one that works with this Achsje includes rotatable cutting element that against the shear plate is tffhnlten, with an opening in a knife-bearing. Stop giving the Schni 11 el again with a to a ui coupling

909887/0333; / bad original.

i ungs s t i ft converted free I-ride of the drive axle. away I i ι. Ii Vi-r bund en i s t t

Pic-e known be weg 1'i ι -he connection aui ^ ihen the anti i I'h.srii-lisc, and the --rhn itt.> 1 t has the disadvantage that there is a look 1 a tim work omlnii state of the apparatus, not always' completely at de? - 7 um botrei I end Si-hni t te 1 emen t gelici reriden Scherplattt is present, votlurrh in <lem mentioned A ι be it szu.s land des appfixati 'is a ~ -clia.uk «? 1 br-wegung 'des Sehn L tt ο 1 a t ν s compared to the Scherpia τ te distorted. As a result, not all of the hair that protrudes through the> rf) (M 'plate h) can be cut off. This causes the rocking movement, which the Denuixei perceives as an oscillation of the shear plate Likewise, there is immense wear and tear on the richer plate compared to the cut, which increases the existing situation of an imprecise contact between the blade and the shear plate.

The invention aims, inter alia, dio.se mentioned

To reduce disadvantages at least as much wifj as possible and has * the indicator that the above-mentioned be-WGfi i.'ho connection is formed by the coupling style, which is curved on its side surfaces with arched gokkrinmten Surfaces is spared, bearing in the prismatically designed opening in the knife-edge holder part of the cut tel ement.it fits ..

That way is one in a constructive way

very simple hrwegli chp connection between the drive

; : \.; \\ - ';' 1S34774

axis rtri "I" dom Srhri i f ι ο 1 emon t prlia I ten, which b Vort) ι »dung e.iie scliiäpc S tr I lung of the cut flhor (Epssch Antriebsaohso in more a-ls.rmr one allows and wnl) o i end in a rbo L t. Znstandclef?

a good Λπ I ago «los SchtiJttolotnont.es" to flor Srhorplatto ο rha 1 t oti wi rd.

flic Vorwi rk 1 i-clnrng- oino (ior ^- a ft i pen bowogi ichoti Vorb i rifltitip: / wi prhrti dor drive axle utifl dem Sphitittcl-pitiotit citicp T rook on ras i cm ppa v; \ t us ϊ <* ί * > crpi ts from ei nor Kotist ι itkt i ότι known, bo t «tor oino in oi noF l-.bori.e · ttietirlarh frhdfoiic (iütirio Arhsp with oiiiem straight · Mittolstürk ^ das i · ti ο in or groove in t- ndo dor Antrr'eb.iarftse drotiljar- go is stored, \ orworidof becomes.

IH rso against which it findungsgoinäs son const fraction yioTnlieh intricate ,, several f · in / el t ο i 1 e-f eFforderin tie and diufurrtt the Herste 1 liingskost en enhancing Apparatt irr has nevertheless the disadvantage of a difficult vorwi RFCL i rh- barrtt / Entering the tendon 1 saves it from the

drive axis, which occurs, among other things, when Linzelteile he- setxt vertiert must-v

Fine, consistently good centering of the drive axis Opposed to the cutting edge angry, even after renewed man - days after dismantling, a execution form no the device according to the invention, which achieves the hen has that the arched curved; Öb & pure Part of two almost at right angles to each other

Pair of sides facing each otherGT * bilrfenv, the arched curved surfaces of the one

9O 988 7 / O 3 3 ■ 3F,, ^,. . ·, - 'bad original

PIIK. ) 2 ΊΟ

Pa A if s fin rind import versus 1 i cgpiidpi 'Sf it en part of the grbnpnnon Zy1indorobcrf1äeho only cirips Krriszyl iridors Ijί 1 - don, ini 1 tr pinrm DUI cIiiiipssci ·, dor dor pinene Be · the same time rectangular auspcbi ldctfin OiTnurig in the low-yielding shark (grant of the sentence 1 emen 1es is almost the same, and the arched, curved surfaces of the other pair p; 'n.-nider opposite 1 ip /; cniler sides a part J of the cited Zy I i η · Ι e rober! laugh only a- fuifieren Ivrciszylimlfirs biJilen, with a! lurrhnipssiu ·, fler the other side <\ i ^ r rerh 'eck i {K niisgnbi I de ton opening in the mrssort ragpnilen- HaI- | pi part de-s Srhn ί ι t element is nearly equal, while ti i ι · Mitt.en tfei- t be re ff end "Zy 1 above i inier and the ball. surface, a vil 'which dor the Fckpunkte rectangular ausgebil - * The opening in the slightly protruding part of the shark door ran, in the installed location the drive axle collapsed.

No fill-in form, which in practice gives very sharp results! " Thereby the sides form, with the arched, curved surfaces of only one pair of opposite sides forming part of only one spherical surface, with a diameter that of the long side of the rectangular one parallelogram as i'uerschnitt prismatic opening formed in the measurement-carrying holder portion of the Sehnittelementes almost equal, and the convex curved th surfaces of the other pair of opposite sides of a portion of a curved ZyIinderoberflMeh "only of a circular cylinder form having a diameter of ^v

.... '909887/0333 bad original

. - ..-. . . PHN. 3230.

The short side of the opening in question in the lower part of the cutting element is almost the same, while the centers of the spherical surface of the cylinder in question and the ball surface, on which the corner points of the rectangular opening in the holder of the cutting element lie, coincide when the drive axle is installed .

The coincidence of the relevant mids , joder movement of the cutting element relative to the drive axis ensures good and permanent centering.

An implementation form. of the invention is t in the Drawings and is described in more detail below - very i.

These 'drawings are not for the invention essential parts are omitted. At the same time there will be several more Advantageously applicable details emerge. Show it:

1 shows a longitudinal section through the shaving head and through the axis of the drive shaft with a free land converted into a coupling pin, which section also extends parallel to the short side of the prismatic opening in the knife-bearing holder part of the cutting element, which has a rectangular parallelogram as a cross-section. "-

Fig. 2 shows a longitudinal section as in Fig. 1, but parallel to the long side of the opening in the holder part,

Fig. 3 is a long section in Fig. T, but with a certain angular rotation of the drive axis g & gen-

- - '' - "'- ■' 9C3S87 / 0333- ^: ^ :. ^: - ^:. & Ad original

pun. ι.? no

about dom cutting element, -

Fig. H is a longitudinal section as in Fig. -2, with. EbonfaI Is a certain angular rotation of the drive axis with respect to the tendon

I ig. 5 R ine plan view of an assembled coupling pin.

. Γη Figure 1 it is shown that a sections te- ~ ment 1 a shaving head with a a Kupplungsstiit: reformed> ■ free end of a drive axle Ί is connected. FIGS. 3 and 'i show that the connection is movable.

The coupling pin, which is provided with side faces with curved curved surfaces, protrudes into a prismatic opening 6, a knife-bearing Ha! tertei 1 es - ¹ I of the cut element. -

A. Cross section of this opening 6 has the shape of a rectangle with a long and a short side. This opening 6 is centrally located in the sections messertragendon HaJtertei.I k learning gent 1 is mounted in the coupling pin is constructed in its cross-section so that its side surfaces contact the Offnungswände approximately. In each case, two opposing side surfaces form a pair that belongs together. The curved part surfaces of this pair have the shape of cylindrical surfaces of a circle 11 with a diameter approximately corresponding to the narrow side of the opening b. (see Flg. 1 and 3) · ■

* · ■ f> he curved part 1 surfaces tj @ »otheri? Couple to each other opposite side surfaces form a

\ -. ■ ... - ■ .. ';, · ■ ■' ■■ .. ■■ - ■ BAD ORIG (MAL

809887/0333

PHN. 3 ^ 30

Part of the curved sphere surface a sphere 10 with a diameter that is equal to the broad side of the opening 6 in the interior part of the cut element 1. The curved surfaces of the side surfaces of the coupling pin 2 merge into flat surfaces in their upper part facing a plate 7, whereby the flat surfaces 13 of one pair of opposite side surfaces of the respective surface 7 touch 11 and the flat part J flat K. ' of the other pair intersect the opposing surfaces of the sphere in question. The '-Kupplungsstift Z is held by the through the opening 6 in the Hal tortoi I Ί disposed shear plate 7 in its mounted rings, wherein the inner side ^f> of the plate 7 with the j-ugevandten surface of the coupling pin 2 is in contact both with every movement of the cutting element 1 with respect to the drive axis 3, as well as during standstill. In Fig. 1 to Ί the shear plate 7 is on the side facing it ttel-ementes 1 attached, while the free end of the coupling pin 2 ensures the touching contact. In Figs and the spherical surface always coincide with the center line of the eight corner points of the opening 6 in the holder part 'f of the cutting element 1, even after an angle rotation of the' drive shaft 3 with respect to the cutting element 1.

Atis the above it should be evident that «Cloth in this position a good centering of the cut element

909887 / 0333-

, BAP ORiGiHAL

Claims (1)

/ PHN. Ί2'3Ο 1 against the Antriobsachso ') is maintained. I.) Dry: sierapparat with raindestons a by ο i Ho Ant ri obsachso operated shaving head, which among other things a SHierplatte, which can take a srhtägp position opposite the drive axis, and with this axis 711 »amines a rboi-t ends drclibarps Sehn i t1 ο 1 emorit, which is held against ilio Scherp 1 att ο, with an opening in a hold of the sehn it te I otnen tos with ,, ο i nom ■ is connected to a coupling s ti ft bypassed i 1 de th free end of the drive axle, characterized in that the above-mentioned movable connection is dadiiicti goliilciot wii ~ d that the coupling is ting, <\ (? r an its side surfaces are provided with curved surfaces, ι ιήρ'ίκΙ. in the prismatic opening in the fipnilpn fin ] tertoi 1 rlo.s see it "te lemon tos fits. Trockeni'as i f'i'Eippnrat n.acVi claim 1 thereby zei rhnot,. that the convex curved surface äclion ψ dos coupling pin part nk'-l -zweier each other almost roohtwi ig intersecting opposed pairs 1 i egender.Seiten-flochen form, wherein the convex curved surfaces of the one pair each ¹ opposite Seirenf1ächon a portion of the curved ZyIinderoberf18ehe ~ form only one Kreiszy1inders, with a diameter of one side of the also rectangularly shaped Off "·" is voltage in the measuring-carrying holder portion of the cutting element is nearly equal, and the convex curved surfaces of the "other pair each gegenüborliegender rare surfaces 909887/0333 V, -> BATH ORIGINAL PHN. ! 32 -9-, pint'ii Toil of the curved ZyI inderoborf 1 ächo of another Form circles with one major, that of the other Ropes of the rectangular opening in the messoit rngondeii holder part of the cutting element almost the same is, while the centers of the cylinder in question and the Kugo 1 surface in the assembled state of the drive axle together fa Ι. T. dry tasi c rapparat according to claim 1, characterized ßplconnzoi chnet that the arched curved surfaces part of two almost at right angles intersecting " Panre form 1 laying side faces opposite one another, whereby the arched curved surfaces of only one pair of opposite sides are part of only one Form spherical surface, with a diameter that of the long side of the parallelogram with a rectangular »as Cross-section prismatic opening in the knife-bearing holder part of the cutting lernentes is almost the same and the arched curved surfaces of the other pair of opposing side surfaces form part of a only form the curved cylinder surface of a circular cylinder, with a diameter that is almost that of the short side of the opening in question in the holder part of the cutting element is the same, while the centers of the respective spherical surface of the relevant cylinder and the spherical surface, on which the corner points of the rectangular opening lie in the holder part of the cutting element, coincide in the assembled state of the drive axle. h> Dry razor according to one of the preceding. Claims, characterized in that the curved ">^{;. v} 7 -. ■ '.; ■. _BAD original surfaces tlor S .ο It on J lachen dos Kupp 1 .ungsst if tos in their upper side facing the lialtortoiL ties Sehn it te 1 omen te.s Partially pass into level r * inert. ■ 5. Tröckonnisi.f'rnpparat according to claim.? oiler "), characterized in that the flattened upper parts of the one pair opposite one another 1 erring names f 1 areas die gek rüinniterv .. Part 1 above f I resemble each other £; o £; lüber 1 io- £ <Midpii / ei th. Cut while flit? flattened upper Part-le rl p-s other pair of gogon over each other miserable so i th W surfaces the £ jok rüraniten part 1 above these one another ¹ go - g ο η ü b οι 'L i ο ^ Bη (1 en sides touch, (>. Dry razor after one of the front doors Claims, characterized in that the coupling pin fc through a prismatic opening in the knives protruding halter part of the cutting line tos attached Plate is held in spincra assembled condition, whereby the inside of this plate with the one facing that inside TfViIe of the coupling pin a touching contact k tact - maintains, both during every movement of the cut » Ölomeii.teri compared to the drive axis, as well as when do not move the parts opposite each other. • 7 · Dry shaver according to claim 6, characterized marked that the plate is part of the llaltertoils of the cutting element forms ". 8. Coupling pin of a drive axle for one The shaving head of a drying apparatus according to any one of the preceding Expectations. . BAD ORIGINAL 90S887 / 033t PHN.3230 '·. Sclini t to learn I with a knife-trending neck tertoi I, which is attached with a centrally mounted en reclitockißon " OfTnüng over the one plate. 909887/0333