Note: Descriptions are shown in the official language in which they were submitted.
'94 06~14 11:49 ~ 703 63753~ IIWR TUi~ER 82
`` 21259S5
~azor dèvicc, in p~rtieular a throw-away r~zor
The invention rclates to a ra~or devi.ce, in particul~r ~ throw-
aw~y razor, ~s se~ ~orth in the cla~si~ying pOrtiOIl of ~he independ~nt
claim.
A razor dcvioe ~ th~L kind is to be found in Europe~n p~tent
application No 0 322 486. In ~he ~rrangement di~closed ~herein, ~n
i.nternal fin of a cap i~ rot~t~d on ~ co11ar around a central ~xis, A
small rib which projccts frcm 1:he collar indicat~ tl1e ~ransition fron a
rear~ard trar~portatlon position into an aCtuation po~ition follcwing
same. In the actuation ~o~it:ion the intcn~a~ f~r of Uhe cap re~t~ on the
gu~de surface ~nd i~ r~oved into t~le f~n ~osiLion l~pon f.urther rot~ry
r~nent of the cap ~bout the axis of the valve tube ~s f~r ~B the
reCeB6 pDrtion ~i~}l i~ p~r~llel to the axi~.
In a razor d~vice as ~l~wn in European p~tent specification No
101 767, the neck cxtends inclinedly relativc to the c~xi~ of the valve
tube, while the port~on of the razor hea~, w~lich engages the fa~e of a
user~ is dispvsod outside an extrapolation of the cros6-sectlonal
prolongation of the handle portion and thc cap fixedly engages into the
handle porti.on i.n the fonm of a s~.J~w-tyye or ~n~p-type fixing, BO th~t
the cap i8 not releaso~ f~n ~he handle portion during nonmol ~huving
~0 oper~tions. ln order to extrflc~ the shaving foam a u~er must renove that
sap fron the elongate a~ro~o]. ~ont~ine.r ~ich scrves a~ the ~o~n
oontainer, ~nd re-fit it aft~r the sllavi.n~ operation.
In Gonsideration of that st~te of the art ~ld its deficiencie~,
the inventor set himself the aim of slmplifying manufacture and handling
of the razor device described in the opening part of ~lis specification,
and in parti.cular improving th~ ~p~fat;i~llal ~afety thercof.
That object is attained by the teachilly se~ forth in the
independent claims. FuIth~r advantageo~s configurations are set forth in
the appen~ant claims.
~0 In accordance with the inv~ntion, di.sposed iTl the cap ~ an
in~ert with an axial flow pas~ag~ a~ a central projection w~liGh ls neYr
th~ contalner and throug~ .ie~ t-he flow passagc passes, wherein the
... . .
'94 06~14 11:49 ~ 0703 637538 MWR TUR~ER 03
212595~
insert has an outer annu.ler edge fI~n~ wllich two retaining no8e8 project
in parallel relationship w.i.th thc axis, which retaining nose~ can be
Jowered into slots in t~e sliding g~lide ring al~d Lhus into the fo~m
positlon, In additjon, it has been fsund ~e~irable for the surf~ce of
5 the gujde ring t~ definc a t~nsportatiorl ~osi~ion o~ the retalnlng
noses, and a respccti.~e shoulder ~urface bctween ~hat sur~ce and the
~lot ~o define a r~diness po~ition.
However, in accordance with the i~ention, in the cap at lea8t
two retaining noses are dispo~ed as guid~ ~or~.ions on both side~ of the
]O central proiection in a~roxin~tely radial~y ~ppositcly disposed
relationship and ean each b~ wered into a respect~ve onc of
plurality of slots in the gu~de ring; ~ach of said ~lots is separated by
neans of a radia] bead or projection fran tlle guide sur~ace of the gu;~e
ring and forms an obstae~e which C~l ~e Ielt and heal~, in the
transition into the foa~n pos~tion; as ~ reSult, the user know~ whcn he
is at the thre~hold of the foam position and deliberately an~
oon~ciously mov~ the c~p ;~t:o that y~-~ition. The arrang~ment of thæ
retaining no~es and the slots on~res a 6af~gu~d against accidental
tilting of the cap out ~f thc axi.s ~f the devioe.
The feature tha~. thc guide surf~ee for each retaining no~e i~
pr~vided ~ith a retainillg slot for f,ixing t~le re~aining nose - ~nd
~ocking the c~p - in a shaving posj.tion, is vi.ewed a~ a ~,urther
advantage in ~erms of handling of the razor dcvice. The retaining slot
i~ delimited by a tha.eshold mean~ which is fw.~ed out of the guide
2~ 6urfa~e, and a ~tep ~'ront facc.
In a further ~nbodiment of ~ ding guide ring each of the 610t8
i6 flanked on ~oth ~ides by a p~ir ol beads or projection8; re6peotive
taper 8urfaces risc from each thereof so that ~t the side of ~he bead or
pr~jection, there i~ ~ very dccp J~ce.ss iu~ which a retsining no~e can be
di~posed.
FDr the purposes of g~idance of the cap, it ha~ al50 been ~o~nd
desirable for the retainin~ noses to ~eorea~e in rcspect of their crci8-
~ecti.on tCWrdrdS their free edges so t}~t they can bo ea~ily engaged into
the co-op~rating retaining means.
). . -- - ~ . . ~ .; ...... . , ~
: . . . . . .
r . ~ ~ '
r,~ ~ :
` '94 ~6~14 11:50 ~ 0703 637538 11WR TURNER 04
2125~
hdvantageou~].y the rati.o of ~he ~pacing of the g~ide surface
frc~ the surface of ~he guide ring to the spaciny thereof relative to
the ~.oWest part of the slot. i~ t.o be abou~ 1:5. The height of the ~ead
or projection ~nd/or the threshold rneanS is to corrc~pond to ~he gp~cing
of that guide surface fr~n the surf~ce of the r~g.
In accordance ~ith a further fc~t~re of t~e i.nvention a ~atiD of
the arcuate length of the guide surfece to ~ e arcu~te length of the
ring s~rface dispDsed in f~nt thereof i~ about lsl ~nd/or a r~tio of
the arcUate ]ength of thc ~Nidc surface to the arcuate length of the
ring surface disposed in front lherco~ i6 about 4:1.
A particularly ~vanta~eou~ oonfiguretioll Or the razor device of
the general kind sct forth ~s in accordance wit~- the invention; in thi~
ca~e also in the r~p at. lcast ~w~ retainin~ noses are disposed
guide portions on both side~ of the cen~ral projcction in subgtantially
radially oppo~i.tely dispo~ed relationship. Hnwev~r thcy proj~ct peg-l~ke
at a spacin~ relative to the in~ide surface of the cap from r&dial flap
portions formed thereon, in par~l~el relation6hip with the axi8, and c~n
each be lo~ered int.o a respoct.ive Tecess in the guide ring the rece~8es
being of corresponding cross-section and being closed towards the edge
where~n as~oci~ted ~i.th e~oh rcce6s at one radj.al ~ide is an abut~ent
limb which sticks ~p fro~ l-he ~rface of thc ~uidc ri~lg; the retaining
no8e~ can be lowcred into the rec.esse~ to pro~uGe the ~oam po~ition.
In this embodiment an ~nnul~r radial rib projects beyond the
peripheral suIface of the guide riny the diameter of thc ~nnular radial
25 r~b ~pproximately c~rresponding to the i.nside di~neter of the ~pper cap
portion ~hich has thc .r~dial i:lap portions and whioh is ~eparated by a
retaining rib that project~ t:~war~s ~le axis fron a 61.eeve-6haped lower
c~p por~ion of larger diamcter.
In addition t.he hcight of thc r.~dial rib is o corre~pond to
approxlmately a fifth of the ~le.ight of the guide ring, while the height
of the ab~tment J~mb ~pproxim~tely ~rresponds to ~he height of the
rad~al rib.
94 ~16~14 1 1: 5~ 2; 0703 637538 11WR TURNER 05
212S9~5
Furth~r advantag~s, ~eal.l~es and details of ~he invention will b~
apparent from the lollowi~lg description of prcf~rred em~odinent~ and
with reference to the drawings in whi~h:
Figure 1 i6 a front vi~w ol a tw~-part razor device with a
S shaving ~o~m cartridge and a c~p c~rrying a blade hcad,
Figure 2 i6 a pl~n vicw o Figure 1,
Figure 3 is a view partly in section through Fig~re 1 wlth the
cap rai~ed,
Figure 4 is a view in par~.ial ~ect.ic)n through Figure 1 3hc~ing
tr~nsfer of th~ cap i.nLo a fo~m position,
Figure ') is a view on an elllarged ~c~le in pa~ti~l section
approximately along ].ine V-V in F'i~ure 4 ~hrough the cap,
Figure 6 is ~ plan vi~w of a sliding ~uide ring,
Figure 7 i8 a perspectiv~ view of ~ y~r~ of thc guide ring,
Figure 8 i6 ~ view in an axial direction into the i.nterior of ~he
cap,
Figur~ 9 js a vicw apprDximatcly c~)rrespor~ing to ~igure 6 of
another embodiment,
Figu~e 10 is a di~gr.~mmatic vi~w of a deveJoF~ent of Pig~re 9,
Figures 11 and 13 ~re rear views of two embodiments of the cap,
Figure 12 is a view in 6cction through ~'igure 11 taken oLcng line
XII-XII therein,
Figure 14 is a view in section t~)ugh Figure 13 taXen along line
XIV-XIV therein,
Z5 Figure 15 is a perspectiv~ vi.ew of a part of Figure 14,
Fi.gure 1~ view of a ~urther gui~e ring which i.5 shown on a
reduced scale in ccn~arison w; th Figurcs ~.~ and 14,
Figure 1'7 is a ~ view of Figure 15, partly in 6cction taken
along line XVII-XVIl thc~ein,
~'igure 1~ i8 ~ VJ ew in p~Itial section corresponding to Figure 3
6howing a ~rthcr e~bodiment,
Figure 19 is a view in partial ~ti.on corrc~ponding to ~lguxe 4
with the cap in thc f.o3m position,
'94 06~14 ;1:51ZC 0703 637538 MW~ TURNER 06
.
212~9~ -
Figure Z0 is a 6ide v~ew of ~-he Figure 2]. str~c-ure, an~
Figure 21 i~ n view of a detai] on an ~llarged 8cale from
Figure~ 18 3nd 19.
A shaving foam cartridge 10 has, at the end, which i~ the upper
end in the drawin~, of ~ts cylindcr-like foan~ con~ainer 12, ~ coll~r 14
of a dismeter d of a~ou~ 20 mn ~nd a hei~llt l~ of about 8 mm, fron which
~ valve tube 16 of a v~lvc 18 (not ~hown in greater detail) projects
upwardly~
~ le cylindrical ~].eeve portion 20 of ~ ~ap 22 of li~itbdly
flexible material, on ~licll a neck 24 of U-8haped cross-seotion is
fcon~d, i~ fit~ed on to thc sha~ing ~o~m cartridge 10 which is
sub6tantially foDmed from rigi~ u~t~ri~l. The neck 24 goe~ into a blade
head 26 WhiCh extends transvcI~e]y relati.ve ~hereto ~ whose surf~ee 27
i~ inclined a~ an ~ngle w of about 40 tow~rds t~ lon4i.tudinal axi~ A
15 of the shaving foam caltIidye 10, as shown in ~`igure 3, and covers a
double blade 28 ~qhose sllaving edge Z9 extends a- a ~nall 8pacing
relative to ~ prvtec~ive limb 30 of the blade head 26. Here and in the
other embodirents, the dovice may use both a rigid blade head 26 and
~180 a so-calle~ pivo~ing head.
In the transpDrtation position of thc tw~-p~r~ razor device 32
t~e cop edge 36, as ~hown in Figure l, bear~ ag~ t a parallel ~rking
area 38 o~ ~he shavin~ foam cartridge lO whi~, when the cap 22 is
di3placed in the prc~ing direcLion x, i6 ccvcred Gver by same.
PrDvid~d in the c~p interior 40 on tl1e longitudinal axis A is ~
centra]. pro~ection 42 of the c~p ~, wi~l~ an axial pa~sa~e 44 and a
shoulder ~tep 45 which can bc ~n therein. Extending from the Rx~l -
pass~ge 44 i8 an incl~ned ~assage 46 w}l~4e m~uth c~ening 47 can be seen
at the inclin~d back or outsidc ~UT fac~ ~s of Lhe neck 24 or the cap
portion sdjoining s~me.
~0 1~ in~lined yassage 46 i~ disposed in a shap~d rib 48 of the cap
22, whic~ ~ of ~micirculal crv~ ec:~ion - extends radially fro~ ~he
central projec~ion 42 and e~rries a radial linb pvrtion projecting f~om
~,
. ~ :
,~
: .
. '94 ~6~14 ~1:52 ~ 0703 637538 ~W~ TURI~E~ 07
212595~
the rib a cres~-like confi.guration, as a retaining or detent ~ose 50.
The retaining nose 50 dccreas~ or tapers in w:oss-~e~tion at its free
edge 51 ~cee Figure 5).
Di~posed on tlle diam~ter 1~ whi~l is de~ined by the edge 51 i8 the
edge 51 of a second rctainillg or det.ent nose 50~ wnich i~ olco 8haped
out of the cap 22.
In the t:ransportat.;on ~ositi~n, the twn reLaini.ng no8es 50 ~nd
50a rest on a guide ~urface 68 ~t` a sliding guide ring 70 whi~h
surnounds the valve 18 ar.ollT~ it:s valve tube 16 and is connected to the
shav~ng foam cartridge J0. 'Jhe guide ring 70 i~ provided, on a di3meter
E of a length g of ~8 mm in this case, ~ith twn ~loL6 72 which lie ln
plHn view on the diam~ter ~, being of ~n internal wid~h i of ~bout 3 ~m,
~he slots being adJoined at one sid~ by a b~ad or ridge 74, toward8 the
guide ~urface 6B. T~ guide surface 68 js d~limited st the other end by
15 a step front 8urface 76, a~nve which ie dispo~ed the surface 78 of the
~ing.
If the height m of the ring 70 is for example 5 mm, then the
spacmg n of thc guidc surface 68 fT~m the ring ~3urfacc 78 is about 1.5
mm, With a rr~ximum periphoral lcngth of tlle guide surface 6a of ne~rly
20 ~m.
Puring transportation, the ~etaining nos~s 50, 50a re~t on the
guide 8urface 68 and can be moved ag~inst the two beads or ridges 74 by
~tating the cap ~ (clockwise direction in Figure 6). Ihen, fron that
readiness po~ition, the retaining no~es 50, 50~ are Jowered into the
810ts 72 for thc ~o~n positi.on, with a clear clicking noise on
overco~i.ng the obstacles, by a pressure bein~ applied to a pr~s~ ~u~ace
80. In the f.oam position the valve t~be 16 i6 pressed downwardly by the
~houlder st~p and opens thc ~.~y for the foam to come ou~ of the interior
o the container; the foam pa8ses through the p~sagcs 44, 46 to the
mou~h opening 47 ~nd thus, pas~in~ through the neck 24, iss~les fron the
rear ne~k ~urfaee 25.
: .. . :
~, , : .. - : .:
~: - . . . -
,, - :
.,.............. . ,. ~ :, - ~.
r : .. ' : - .
/r, . , ',
! .~ ' ' . , ~
',' ' ' '.'; . , ' ' ' ' .~ . , ;
~' . '
' 94 ~16~14 1 1: 53 ~ ~17~13 63753g l)W~ TUR~`IER 08
-
212~9~5
The user tako~ that: issuing ~having foam for his shave, mcves the
cap ~2 into the transpor~ati~n position thereof, and can t~en use the
blade head 26 in the usual m~nner.
In an ~nbod~nent. of thc gu;de ring 70 which i~ only indicated ln
Figure 7, at a spacing z fI~m the s~ep ~ront face~ ~6 ~he ring may have
threshold meatls B2 for rc6pectively defining a re~pec~ive rctain~ng 61vt
84 which receives o~le o~ tlle retaining noSes 50, 50a, t~ hold it in the
~having position,
me sliding guide rin~ 70a in Figurc~ 9 and 10 ha6 a re~pect~ve
10 bead or ridge 74 on each side of its ~lots 72; fr~n the bead or ridge 74
a shallow taper surface 6g risc~ ~t an angle wl to a centr~l crest line
92. The pair of cre~t line~ aJe di.sposed on a ca~non di~m~ter B. The
taper surfac~ 69 guide each of the retaini.ng noses 50, 50a t~ the.flank
of a becad o~ ~idge 74 against which they bear in hold~g rela~ion~hip.
Figure 12 shows a cap 20 w~ th a bl~de head Z~ wtlich has lateral
m~unting anms 26a for a p;voting head. Thc cap 2~ has in it6 interior 40
fou~ retaining nose~ 5~, ~0~, as well as a stepped in~ernal annul3r
collar 86 o~` a widLh q, whic~ i.s delimited upwardly ~y an ~nnular rib B8
and downwc~rdly by an inc~in~d ~mllll~r 6tep 90.
In the ombodi~ent ~hown in l~ u~ 13 and 14, the inclined
annulor 6tep i~ the ~nderneath surface of a ret~ining rib 52 which i~
6haped out o~ the cap 22b and above whi.ch the cap in~ide dLameter dl is
shorter than the lowcr i.nside di~meter d bcneath the retaining rib 52.
It extend~ at ~ small 6pacing b from ~ radial fl~p p~r~ion 54 of a
25 thickness c, whiCh .is fom~d Oll the i.nside surface 4]. of the cap and
lies on a common diameter with a ~c~wld radial flap poItlon 54. A
retaining portion 56 Or rectangular cros~-section proje~t~ ~ro~ the
radial flap portion 54 in paralld reJ.ati.onship with the axis. ~he
retaining portion 56 ~ arranged both at ~ ~p~cing f f D the in~ide
3~ surface 41 of the ~ap and also at a ~l~ller spacing fJ from the inside
edge 55 of the radi~l flap portic)n S4.
'94 06~14 11:53 2; 07~3 637538 11WR TURNER ~9
21259~5
R
~ s60ciat~d With those tW~ peg-like ~e~aining projection~ 56 of
the C~p 22b, in the slid~1g g~ide ring 70b w~lich is fixed at the
cartridge 6i~e, a~e twn rccesses 60 of corresponding cross:section, ~t
the sane ~adia]. s~cing k: the reccsses 60 are Also dispoxed ~t a
8pacing f~ ~rcr. the central recesG 71 of the s)id.in~ guide rin~ 70b and
at a spa~ing L relativc to the perip}leral 6urf~ce 62 of a projectin~
r.adial rib 6~ of the ring 70b: 1he dian~ter of the projecting radial ~ib
64 co ,c8ponds to the di~l~t:er dl of the ~pper cap portion.
~xtending at ~ rad~al sidc of the l~ceG5 ~0 of rectang~lar cr~s-
section is a limb 74b which sticks up from the ring surface 7~b andwh08e height ~ apprvxin~ely oorr.e~sponds to the height sl (l mm) of the
radial rib 64.
Each ~f the limbs ~q i5 disp]aced in para]].el relationshlp by
hAlf the width of itG recess 60 fran its centre which is detenmined by
the diameter. In additior1, as shown in Figure 16, the limbs 74 ~re
di~posed m the dircct.ion of rotation o~ Lhe cap 22b ~s limiting nean~
for the travel of th~ ret~ining portion ~6 at thc l~ngitudinal slde o~
the ~eCess, which i~ e therefran.
~isposed ~t the other lol1y~t~inal 6idc of the rece6s i~ a knob
~0 75 which sti.cks up from the ring 70b a11d against whi.ch the retainlng
portion 56 a~ibly 6trike~ durîng it~ :r.o~ry mov3nent and over whlch it
must ~e moved to go in~o th~ ~oam p~sition.
In ~'ig~re 16 there ~re tw~ pairs of recesses 60 in order to
simplify a8sembly of the ring 70b, th~t is to say matching of the
~5 di~meter 1' to the markin~ ~ which in thi~ case is in the for~ of an
arrowhead and which indicat:es thc lw~tion at which the cap 2~b ~oves
dcwnw~rdly into the f~m pO~itiOI1 aLter the rétaining portions 56 have
audibly ~tJ~ck ag~inst thc limbs 74b.
A6 ~hown in Figurc ~U and the foll~win4 Figures, dispo~ed in the
cap interi.or 40 0l1 the l~ngitudil1al axi.s A is a funnel-like rece~s 43
which tapers inward].y in opposite relationship to the actua~ion
direc~ion x an~ which the axial p~ss~ye 44 of thc cap 22 opens.
'94 a6~14 11:54 2; ~703 637538 MWR TURNER 10
2125~$t~
Tcnminating beneath the rece~s 43 is an ~xial flow pass~ge 61 of a cap
in~ert 62 of a height e of about Z0 mm with a part-spherical ~pper end
and a lower annular recess 63 around a ~entral projcction~64 through
which pas6es the axial ll~w passage 61 and who~e ~xial ~ength i8 ~horter
5 than the ~eight t o~ an outer annular edge 65 of the ~ap in6ert 62 fr~
whiCh a pair of retaini.ng no~es 66 pr~ject downwardly on a diameter.
ln the transportation position the retaining no6cs 66 rest-on the
8urfaoe 71 of a sli.ding gu.ide riny 70 whioh surrowld~ the valve 18 and
its valve tu~e 16 and which i~ c.~nnected to thc ~h~ving foam c~rtrldge
10 (Figure~ 20 and ~J). Thc ri.ng 70 is provid~d on a diameter g o~ ln
thi~ case 18 ~m with two axi~-parallel ~lots 72 of a width i of about 3
mm, each of which i~ adjoin~d b~ a rcspeCt.ive shoulder 73. I~ the helgh~
m of the r.ing 70 i~ for cxanple 5 mm, then the spacing b of the surfaee
of the 8ho~1der 73 ~rom th~ ring ~urface 71 i~ for example 1 ~m, with a
maxim~n periphcr.al length y of thc surf~ce of ~le shoulder 73 of 5 ~m.
During transportation t~lereLorc in this ca~e ~lso the ret~inin~
noses 66 r~st on the ring ~urLace 6J and can be moved m to t~he actuation
po6ition by n~tating the cap ~2 (clockwise direction in Fig~re 21) on to
the ~houldcr ~urface 7:~. Then, ~rnm that actuation po~ition, the .-
20 retaining nose~ 66 ar.e lowero~ i.n~o thc ~lot~ 72 to giv~ the fo~m :~
po~ition. ~n th~t po~it.ion thc v.~lve tubc 16 is pressed downwardl~ and
opens the w~y l`or thc fo.~m to pass ~ut of the interior of the oontainer,
the foam pa~sing through the passages 6J, 44 and 46 to Lhe m~uth cpening
47 ~nd thus, pa~si.ng throu~h 1he neck '~4, is6uing fl~fn the rearward neck
~5 sur~aoe 25.
