Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
2 I ~;~r334o
-- 1 --
BLOW BOX FO~ TR~
G ~ t~h
T~e in~ tion ~elates to a ~ x u~ed ~it~
Ye~ carrier rolls fo~ a w-b ~inder. ~n exa~ple Qf such a
co~bination iS ~ound in a ~-~E~ing ~.S. applic~ticn
~ile~l ~he s~e day anCI vhi ~h ccrresponds to ~e~an
Appllcation lg5 3~ 9~3 . 5
When ve~5 or pap~r ~re ~ourd, ~e h~,.e
10 the wi~Ain~ po~tant ~ er y~u..,~ tng step~
that follow. Particularly ~ar pape~ web~, it i~ c~i~lcal
th~t the ~rin~ ha~4 or ta~JL.ess or te~ion on the
~ ave a specific pro~ ov~r th~ tire dia~tor of
the reel. In general, the ~irl~i"g hardn~s~ rop
~ro~ a c~ ain lnitlal ~ralue ~-';al ly i~a ~ an ~
uB rad~ally outvard. 'rh- d~op ~tollLd, ~e a~ unifor~ as
aible fr~ t~e first layer t~ 1~9t layer. It
~hould h~ve a certain g~adient, i.e. it d~auld not b- too
steep or too ~allou. The prori~.e of t~e ~inding
2 0 ha r .~.. e3ç s~ould neYe~ chanq~ al~ruptly, o . g. dr~p
y-
e~red y~n~n~ h~e55 profile isa only
adlie~ed if ~ertaln -~ are taken. If sL~ easures,
ar~ not taken, ln cvnt.~st, then Zl~ ~2le ~laneter of the
reel ~creases, t~ linR pr~s.u~c h~._~ the r~l and
t~e carrier roll or the carriRr ~Qlls bec~e~
ln~re~singly g~ea~er, as do~ al~ e ~ g h~.
ln o~d~ to aYol~ 'chla probld~, kno~n vjn~;n~
apparatlLs use co~reaaed air, ~rhic~ ent,er~, t~v~, a
3 0 Co~tJ~ P -~ air c~!nre~ i~to a l.~ e ~ _ ti~ht ~a~
~eneat~ the papor reel. In thi:~ arr~, - t, ~he alr
2 1 ~340
vol~e ar a~r pr~ss~2~e can b~ cu.l1 .olled accord~ng to thc
increa~sing velght of t~e reel. It is ~l~o possi~le ~o
~lvide th~ pres~urc tig~t ~ber intc~ ~dual
cha~rs over its lengt~ . o~r the we}~ ~idt~, and to
provide each lndi~i~ual cha~ ~th a pre~sure
co~n,sction. Thl$ ~180 ~ake~ it pcl~sible to co~pcnsa~e
for ~agging of ~he reel.
~P 91914763 dl~c~o~es a w~n~ling a~--Ya~.us ~hich
~as ~ ~lo~r box v~i~ can bQ re~ ed i~ro~ its op~ra~ing
po8it~ on ~ a pivoting or trarl~latory ~ t. ~i8
ap~aratu~ a di~:~d~an~aqe. A paper ~ob o~-~ae~ ally
tears ~ a c~rier roll wi 7x~ in~ ne . Th21t paper ~reb
d~ops int~ ~he a~re described type of bla~r bo~c. Thi~;
Ya~te ~ap~r has to ~ r~ gutckly as po~a$~le. For
lS ~118 ~e, according ~o l~P 9191~,763, t~e er~t~e bl~w
box ha~ t~ i~ed-
~oYeV~ the ~ r box has ~ idera~l~
o~rerall ~olu~e and a COIr~v~ y high ~eight. ~h~
blo~ box eXten~s o~r~r the en~ lengt~ or the ~ g
ao h~, ~hich ~ay ~a~ s~v~ral ~etars, and lt weigh~
al Lu~ e~ k~logra~. To ~nr ~- ~ox require~ a
l~igh outlay ~ove~ent ~et~ tAm with a co~ ,~tn~
re. L.a~ , tSle erasulato~y or pivoting move~ent o~
the bl~ box takes up a qulte c~ amount o~
~5 sp~c~, whi~h i3 often not av~ila~l4
- Tl~e ob~e~t o~ the invention is tc. pro~i~e a
blow box rOr a pair o~ Yeb c~rrier rolls, yh i c~ ~OX J.ay
r~ain stationary vhe~l it i~ d~r~ to r~vo re~ a~
pa~ ~ter the pape~ web tears. A~oth~ a~ject 1~ to
- avoid a high outlay ~weaent --h-n~m ~rith a~ t40.
2 1 ~340
-- 3 --
dr~v- ~or t~i9 ~ to als~ re~uir~ a s~all~r
21mount of 8pace r~ tl~e l~hole ~achine.
The in~rention C~ ":3 a bl~r box ~or u~e
b~n~ath a pa~r or c~ r roll~ or a ~oll ~ or a
Yeb. ~e blC~Y bOx t~ispoaed beneath thc carri~r rolls has
fi~t and _e ..' side valls generally sealed LL~pc~ ely
at each of the carrier roll~ The paper ~b pa551ng
ben~a~h onc o~ the ~arrier r~lls and up b~tY~n ~he rolls
~ay tear asld t~e torn pap~r ~ab drops ~nto t~e blow ~ox
t~ op~n top. A C'G~ L~g ~rall locato~l ln the
~low l~ox and ext~n~ing ~e1,~ the riret and ~r~r~ side
w~ r~ceives the paper t~ereon rath~r th~n th~ pap~r
falli~g into t~e blo~ boY. The ~all Pay i~e ~nclined t~
direct the falling pap~r to~ard a ~ide ~ an
opening i~ providod ~na~ling re~oval o~ the pape~. ~he
.~ ~n~ ng ~all may be perfor~t-d. The air ~y rlow Lnto
the blc~ x fro~ benea~b the pa~fGLat~d vall sa that the
a~ t~u~l. the wall ~oope~ate~ in ~o~lring thc
f'alling p~ long tho ~all. A~ a r~sul~, ~e ~a~te
~per ~an be re~ed ~rom the b~X gllickly and e~s$~y.
The blOu ~ox o~ inve~5.on ~e~Yes tvo
purpos-~. It proYid-s the ai~ r~ hicll sets th~
ha~ -Ae or ~o ~eb w~ndirg and it also ~ ?~ the tor
w~b ~:hat has Sallen in~o the blo~ x to be easily
25 . re~lwved.
O~e~ f e~ s and ad~An~ag~s o~ c.. 1,
ntion vill Pcco~e ap~arent fro~ th~ s'ollawing
de~crlption o~ an ~ ~ ~;. .. r t, o~ nventicn ~hich
r~rs to the aCComp;lnying drawlngs.
2 1 ~340
~~gur~ 1 ~ho~s a trar.D~ e crot~ ction of a
bl~ x 1 nf a Yin~in~ ap~aratu~ and, ~n a pre~e~red
e~lbodimQnt, the blov b~x ~ay ~ of ~ ~x d d~ d
Figure 2 ~how5 ~n ~lternate e~bod~l~ent.
Fi~ure 1 81~0W8 an e~odilDen~ ~f a bl~ box
according to the inYent~on. T~ rotata~le web reel
carrler roll6 2, 3 ar~ a~ r~ ed above the blo~ bo~c 1
0 Th~ roll~ 2, 3 ~ogether forl~ a ~indinq l~d ~or r-ceivi~g
a p~per reel (not sho~n) dts~osed ~bo-~e th~. l!he pap~r
reel i~ ~de by ~n~ r up a papes web 5 ~hat i~ adYanc~d
~c~ tho ~OttOlD le~t in P~g. 1 and that wrap~ a~Gul.d th-
carri~ ~oll 2 to pas~ up bet~n the rolls ~, 3. 51~e
- 15 paper r~l ~ay b~ con~entionslly loaded in a cc.. L;~ollable
annc~ by a lu~ q or ride~ roll ~pplied t~ the reel
(not: ~h~), in o~d~ to in~l~e~ce tlle l~ear~ng pre~
of the roll~; z, 3 :J~in~t the ~;~ing reel.
The blC~r box 1 ~ rirst and ~nnrl tr~ce~l
ap~rt side ~allg ~.1 and 1.2, eac~ ~e~e_~l~ly ~lo~ ~nd
having an uppQr end extrn~ toward one of thQ rolls 2,
3. Th~ walls h~ F~_~ive sealing elelP-n~s 7, 8 at-
t~e~ ~pper end~. Th~ rolls ~ ir 9c~1 ;r~ Qleslle~t~
d~ine the 0~06ite end8 of ~ blou box. ~ s~41$ng
25 ~lement 7, 8 pro~nc~P~ a ~eal b~t _e,- the re~p~c~ive wall
o~ tbe blc~r box 1 and the ~ 1 ive car~$sr roll 2 or 3
a~o~ ~at w~ e b~ a baSQ or ~otto~ t~at ioln~
tl~ sid vz~
A con~r~ Linq e~ ent 10 accord~ng to t~e
30 ln~ntion, in th~ f~ of a ~all, i~ ~ng~d ~n the
- box, ig fa~ener~ b.s~~re it~ po%~t~ tiona~y sl~e
21 ~3340
wa113 1.1 and 1.2 and is ~F~ ' abave ~e ba~e of ~h
blov box .
If the paper wQb is t~rn Yhile it is bdng
~rol~nd an ~e r~ en the ~rc1ng ~ape~ v~ drop~
into tho blo~ box. T'ni~ w~lste paper ~h~~ Q r~ ved as
quic~ly as possi~le. ~h4 connectlng wall 10 int~~ s
thQ lfiast~ p~e~. Racte pap~r on t:he ro~r~ ~al1 lQ
can be . ~ ore ea~ily a~d ~ cly, for e~ple,
tllrough ~ne o~ the two lateral end sides of t~e blo~r box
1 th~n i~ the paper ~ere ly~ng on the base of tha blo~
~X ~. ~ reDoval Or t~e wa~te paFcr ~ay even ~e
aut~DIated, f~r ex~le, by ~ns a~ a s.;~ r a
c~rculating conv~ying belt.
~?urth~ore, th~ co~necting ~al1 10 has
lS add~tlon~ re~- rorces ~ structure o~ ~o
blo~ ~ox 6 ~rh- co~p~s~ air, ~hich ls ~ed to the ~10
box 1 t~rough one or both lat~ral end sides, e.g. thr~
~eed l~ne 1. 3, and baneath ~e ~all 1~. The ~all 10
unifornly d~stri~l~tes the air av~r ~e cros~ 6ection of
t~e bl~ ~ox 1. The ~ o~n~t~ wall 10 nay havs
p~foration~ ~or di~t~ibuti~ th~ c ~ox abo~r~
the ~all. In th~s case, ~en the air flov int4 t~e blo~r
~OX i8 pref~rably from b~loY th- ~tal~ 10, th~ air ~ves
up thrc~ugh tl~e perforatians to ri~ise t~e ~ paper 50
Z5 it Qn mo~e alonq ~h~ vall fa~ ~;er renov~l fro~ t~e
~ox .
I n a ~er ~il~ent, the perf orati~a; of
t~e c~ Ling -~a 11 ~ay ~e di~tributed ir a ~peciric
p~tt~rn For e~caD~le, t~ 6i2- or nuJber or tl~e bor~
tlle ~c~.. e~ 1 ~ay ~ 2se t~d t~e late~1 end
region~ ~e~ ~e air flo~ t~vard the ed~es of the
~eb. q~hls could ~ e~i~t ~e~ it i~ pr~slcely ln
~ ~U ~ ~ '
2 1 ~83~Q
t~- cer.tral regi~n tbat t~le pap~r reel ~ ;ag-s ~o a
p~ticularly ~ e~cter~t-
Finally, th~ co ,r i ~q wall lo co~lld a~ so l~av
~ ~hutte~ ~rAl~linq the th~o~1~r~t of the indiYid~l
s coDIpressed a$r st~ea~ ~h~ ~:h pa~s ~h~ ou~h the ~ore~ of
t~e ~ ,ing ~ 0 to be ~-h~ ed as n~e~
A r~her ~od~t of the ir ~nt i ~n i~
illu~;trated in Pigure 2. rhe blow ~ox 1 ~a~ its t~ro side
wall~ 1.1 an~l 1.2 w~ lr r~ se~l5 7~ l~. The
bl~r ~ox 1 in ~igure 2 has, in addi'C~on to the CG~ Ling
~11 10, re~forc:ing ~ ich conn~ct tb,e sid~ ~a}16
1.1 and 1.2 of tlle blow ~ox. ~he~ are ~ d and,
po~i~;one~ to not int~ ~itb tlle pap~r r~ n7 to ttle
vall 10. Metal plat~s 14 are ~i~t~d a~ound ~e alr feed
l~nc 1.3 o~ ~he ~lo~ bax. 1~h~y r~t.n th~ ai~ reed lln~
1. 3 in ~he ~lov box.
Just like the blo~ box e~od~ent in ~igur-- 1,
th~ conJ~ecting wall 10, ~ic~ ~ay be perfor~t~d~ l~c .~is~
recpts the ~6~1U~ r ~h~t f ll~ into the box
ao ~-hen the pap~r veb i~ torn.
~ther, 'che ~-U.~ L~g ~all lo i8 inclined
~L ~. ~ ~ide Y~ 8 ~.1 and ~.a, ~ order t~t ~e
p~per can ~lide ~ d along thQ ~1ll 10 ~1
t~e bl~or bt~x tovard the !-ide vall 1.1
In ~igure 2, the blo~ ~ox 1 has an ~penin~
ln t~ id~ ~all 1.1 a~re t~e ~rall 10 there. A clos~ng
d~lrics ls a. L .~ e ~ in front of the ~ n~J 12, ~or
~le a flap 13 a~ illu~trat-d, ~Lt~ i~ p~vatally
~oounted on the ~ain l?art n~ tha blov ~ox 1 at the plwt
~ 13.1. rne inclin~ c ~-tingva~l lO ~s fastene~
in the bo~t~ ~ection l.~ of t~- ~id~ ~ll 1.1 a~d
ter~natee di~ectly in front o~ t~ o~r i ng,
~cum17
21 ~340
I~ ~he paper web 5 ts~rs, ~e resi~ual p~per i8
interc~ d by the .~- - e~ all 10, s~lde~ t~ard ~he
- ~ning la, ~n acco~.~ o~ inc~ tion ~1~ th-
connecting ~ll 10, and accunulates at the ~nin~ 12.
lt i-~ ~ e ihl~l to ~ve tbe residual p~per ea~ aft~r
pivoting o~en the rlap 13 ~ ch ie ~:a~lg~d in front of
~e oroni ng 12 .
e ~.e3~,~ ention ha~s be~
descrlbed in relation to particular o~bcdi~ent~ r~of,
~y c~ tinn~ and ~odifications alld other ~eg
Yill ~c~e appar~r~t ~o thos8 s~cilled i2~ t~e art. It i~
prQ~erred, ~cherefor~, that rhe pre~ent ~nve~ltion be
;t-d not by th~ ~pecific ~i-s~losure ~e~eir~, ~u~ only
by the ~.r~~ elai~.
~mt7
