close

Вход

Забыли?

вход по аккаунту

?

Патент USA US3020700

код для вставки
Feb. 13, 1962
3,020,690
A. PODESTA ET AL
.
CAPPING DEVICES
Filed Aug. 11, 1960
2 Sheets-Sheet 1
"
ARMANDO
INVENTORS
PODESTA
CARLO ' VIGNATI
ATTORNEY
ited States Patent
3,020,690
Patented Feb. 13, 1.962
1
2,
3,020,690
in elevation a simpli?ed capping head in two working
positions during the securing of a cap to a bottle.
The capping head shown in FIGURE 1 comprises a
52 Via Eustachi, Milan, Italy
Filed Aug. 11, 1960, Ser. No. 49,074
into two parts 108 and 208 by transverse abutment mem
CAPPING DEVICES
Armando Podesta and Carlo Vignati, both of
substantially cylindrical tubular shell 8 which is divided
This invention relates to an improved device for se
curing caps to bottles or the like and aims to provide
bers or ?anges 6 provided with a central bore ‘106, where
by the top part 108 may be connected to a reciprocating
press or the like, of conventional construction, and serves
for reciprocating the whole head, together with the cap
ping means contained therein, and which will be described
means for clamping to container mouths caps provided
with a skirt having at its free end a projecting part which
hereinafter, while the lower part 208 forms together with
said transversal ?ange 6 a bell-shaped member provided
Claims priority, application Italy Aug. 18, 1959
5 Claims. (Cl. 53-353)
may be constricted radially all around a bottle neck or a
with a cylindrical bore 16 and a counter-bore 116 at its
part underlying a container mouth.
bottom end, an annular shoulder 216 being- formed at the
The main object of the invention is to provide a device 15 end of said counter-bore 116.
of the above kind which permits of adjusting the amount
In the counter-bore 116 a drag and constriction sleeve
of constriction to the irregularities of the said part under
15 is mounted which is made of spring steel and corn
lying the container mouth and which, for the sake of
prises a cylindrical top part 215, an intermediate frust0~
simplicity, will be assumed to be a bottleneck, of the kind
conical part 315 and a lower substantially cylindrical part
rovided with 1an annular bead serving as abutment mem 20 415 ending by the bottom edge of the shell part 208 where
ber for the constricted cap skirt end. Consequently it
it is retained by a plate 17 ‘having a large central aper
will be understood that in the following speci?cation the
ture permitting of inserting therethrough the neck of a
term “neck” shall comprise any outside lateral part un
container with its cap loosely seated on its mouth, and
der a container mouth.
for extracting the capped container mouth, said plate 17
'
Another object of the invention is to provide a clamp 25 being fastened to the edge of the shell part 208 as by
ing jaw device comprising a crown of ?ngers and which
screws.
is particularly adapted for securing to container mouth
The total height of the said constriction sleeve is
metallic caps provided with a curled skirt end, whereby
slightly less than the length of the counterbore and it ends
the curl, when the cap is not secured to the container,
at its top with an outwardly extending ?ange 115 which
projects outside of the substantially cylindrical top skirt 30 extends so as to bear against the whole shoulder 216 and
thus the bore of the cylindrical part 215 is substantially
equal to the bore 16, while the lower cylindrical part 415
sectional clamping jaw device which avoids constriction
has a reduced thickness permitting slight elastic defor
of the flaring or otherwise projecting cap part, before said
mations within the counter-bore 116, in which it is
part is driven in its cap-anchoring position.
35 mounted with a slight play.
Other objects and advantages will be apparent from
Within the above-described sleeve 1'5 an annular cap
the following speci?cation.
clamping jaw 12 is mounted which is formed by a con
Another object of the invention is to provide a cap
necting ring 112 at its top from which depend a crown
part.
'
Still another object of the invention is to provide a
ping device which is particularly adapted for securing
of clamping ?ngers 212 which comprise at their inner
caps having a curled skirt end and particularly caps com
edge a vertical top part ‘312, an intermediate outwardly
inclined section 412 and a vertical bottom section 512,
while the outer edge has a vertical bottom section 612
prising an inner cap made of plastic material and acting
as tight-closure cap and an outer cap provided with a
curled skirt edge.
According to the invention, the capping device com
prises substantially a head adapted to be reciprocated with
respect to the container to be capped, and particularly
a bottle, said head enclosing a usual cap presser and
clamping jaw made of a plurality of clamping ?ngers ar
ranged so as to form a substantially annular clamping jaw,
having a length that is substantially equal to the vertical
part 415 of sleeve 15.
The parts 312 of the crown of ?ngers form together a
substantially cylindrical bore whose diameter is substan
tially equal to that of the caps when secured to the bottle,
i.e., after constriction of the end of their skirt, the parts
512‘form together a shallow cylindrical housing for the
by which the said ?ngers may slightly yield in radial di
rection, the whole being so arranged that, by causing the
head to be shifted axially in the direction of the container
cap in non-constricted condition and the inclined parts
412. are so designed as to ?rst bear against the cap bottom
mouth to be capped, upon which a cap has been loosely
seated, the said cap is ?rst driven by a cap presser so as
bottle mouth or other container, as will be seen herein
to cap the container end by its mouth and thereafter
means enter into action which, by means of said crown of
?ngers, radially constriot the end of the skirt of said cap,
thereby due to the independent yielding of said ?ngers,
the container neck in correspondence of the constricted
edge and then to secure by constriction the cap to the
after.
7
Within the cylindrical bore of the ring 112 a cylin
drical cap presser 9 is slidably‘mounted, whose diameter
is substantially equal to that of the top of the cap skirt.
The cap presser 9 is provided with a guide stem 10 slid,
ably mounted through the bore 106 of the ?ange 6 and
cap part is ?rmly clamped thereby, without however being 00 provided with an abutment member 14. A compressed
subjected to an excessive side pressure due to the crown
of ?ngers adapting themselves to the irregularities of the
container neck.
The invention as well as the means for performing
same will be apparent from the following speci?cation
and drawing appended thereto.
In the drawings:
spring 19 inserted between a washer or annular shoulder
11 and the ?ange 6 urges said cap presser 9 downwardly,
in the measure as permitted by the abutment member ‘14.
Between a top shoulder of the jaw ring 112 and the
said ?ange 6 a very strong compression spring 20 may be
' ?tted for the purposes which will be seen hereinafter.
Anyway, as shown in FIGURES 2 and 3, the spring 20
may be omitted although its presence may be useful in
FIGURE 1 shows one~half in vertical section and one
half in elevation a bottle-capping head constricted ac 70
some cases.
cording to the invention, and
FIGURES 2 and 3, show also part in section and part
now described with reference to the simpli?ed form shown
in FIGURES 2 and 3, in which the container to becapped
,
The operation of the above-described device will be
3,020,690
3
is a bottle 1 provided with an annular bead 2 at the top
of its neck, just under its mouth which is to be capped
by means of a double cap 3-4. As shown in FIG. 2,
4
shell provided with an abutment member in its bore, a
cap presser having a head slidably mounted in one end of
said bore, a ?rst spring means urging said head away from
this cap is of the kind comprising an inner cap 3 made of
said abutment member, an annular clamping jaw formed
piastic material such as polyethylene, serving as lining
and replacing the usual gasket or cork disk, and an outer
cap presser, second spring means urging said annular
metallic cap 4 provided with a substantially cylindrical
skirt ending with an inwardly rolled curl 7 projecting out
as a crown of independently yielding ?ngers encircling said
clamping jaw away from said abutment member, a
counter bore in said shell at the cap presser end of said
side and inside the periphery of said skirt so as to form
bore providing at its inner end an annular shoulder, a
equivalent caps are known per se and are not claimed as
abutting against said annular shoulder, and coacting
outwardly an inclined step and inwardly a slight bulging, 10 sleeve-like constricting member elastically and radially
deformable mounted with clearance coaxially in said
partially encased in a groove formed in the end bead 5
counter bore, the inner end of said constricting member
of the skirt of the cap 3. Caps of this description or
inclined planes on said elastically deformable constricting
forming part of the invention.
The said cap 3—-4 is ?rst loosely seated upon the bottle 15 member and said crown of ?ngers, whereby upon axially
shifting said tubular shell in the direction of a container
mouth, ‘(see FIG. 1) which is then held under the just
upon the neck of which a cap has been pressed by said cap
described capping device so that by acting against the cap
presser and encircled by said crown of ?ngers, said con
bottom, the cap presser 9 urges the said cap 3-4 against
stricting member will elastically constriet said independent
the bottle mouth.
Then the head 8 is driven axially with su?‘icient pressure 20 ?ngers against the skirt of the cap but will yield in any
radial direction, thus permitting said constricted ?ngers
in the direction of the bottle neck (which is assumed to be
to follow irregularities of the container neck below its
held ?rmly) and under the action of this axial pressure,
bead.
the cap presser 9 bears against the bottom of the cap 4
2. A capping head according to claim 1, wherein is
and drives the caps 3-—4 so as to cause the bead 5 of the
inner cap to snap under the bead 2 of the bottle mouth. 25 additionally provided an end abutment on the outer end
of said counter bore and extending radially inwardly of
Then the edge of the bottom of the cap 4 is engaged by
the counterbore, said second spring means engaging the
the inclined sections 412 of the crown of ?ngers 212 and
said annular clamping jaw to urge it against said end
by continuing the downward pressure upon the head 8, the
abutment and being much stronger than the said ?rst
top end of the inclined ?nger sections 412 pass beyond
30 spring acting upon the cap presser whereby said cap
the edge of the bottom of the cap 4 and, sliding along the
presser will ?rst press a cap to fully seat the cap over the
skirt of said cap, come in correspondence of the curl 7
beaded neck of the container before said clamping jaw
and squeeze same inwardly as clearly shown in FIGURE
will be moved to constrict the cap skirt radially and thus
3. In this position the cap is ?rmly secured to the bottle
which is thus tightly capped and the whole head may be 35 avoid premature clamping of the caps.
3. A capping head according to claim 1, in which the
withdrawn by pulling same in opposite direction, until the
said
constricting member is a sleeve comprising a frust0~
capped bottle neck is completely outside the head 8 and
conical section and a depending substantially cylindrical
may be replaced by another bottle to be capped.
section, both said sections being made of relatively thin
Due to the slight elasticity of the ?ngers 212 and to the
elastic deformability of the surrounding sleeve 15, during 40 elastically deformable material, such as spring wheel.
4. A capping head according to claim 1 in which said
the described capping operation the ?ngers are allowed to
slightly yield elastically, independently of each other, so
plurality of independently yielding ?ngers of the annular
thus squeeze the curl 7 when the cap is not yet anchored
to the bottle neck, the strong spring 20, FIGURE 1, is
cap presser having a head slidably mounted in one end
of said bore, an annular clamping jaw formed as a crown
provided which yields until the cap is not ?rmly seated
upon the bottle mouth, and only then permits the sliding
presser, a spring means urging said head of the cap
clamping jaw are slightly spaced when they are not
as to adapt the caps to the slight irregularities of the
constricted.
bottle neck just under the mouth.
5. A capping head for tightly securing a closure cap
In order to avoid that the inclined ?ngers sections 412 45
to
a container having a beaded neck, comprising a tubular
slide beyond the bottom edge of the cap 4 before the cap
shell provided with an abutment member in its bore, a
bead 5 has passed beyond the bottle neck bead 2, and
of the crown of ?ngers upon the cap skirt, as described,
and the consequent radial squeezing of the curl 7 (PEG.
3).
of independently yielding ?ngers encircling said cap
presser and said annular clamping jaw away from said
abutment member, a counter bore in said shell at the
cap presser end of said bore providing at its inner end an
From the foregoing is apparent that the just described 55 annular shoulder, a sleeve-like constricting member elasti—
cally and radially deformable mounted with clearance
device may undergo many constructional changes without
coaxially in said counter bore, the inner end of said con
departing from the spirit of the invention. Thus the
stricting member abutting against said annular shoulder,
crown of ?ngers forming the clamping jaw may be ob
and enacting inclined planes on said elastically deform
tained by retaining independent stave-like ?ngers by means
of elastic hoop-like rings, which may be formed for ex 60 able constricting member and said crown of ?ngers,
whereby upon axially shifting said tubular shell in the
ample by helical springs connected at their ends. Further
direction of a container upon the neck of which a cap has
more a clamping jaw thus composed may be driven axial
been pressed by said cap presser and encircled by said
ly by acting on the ?ngers tops by means of the shoulder
crown of ?ngers, said constricting member will elastically
provided by the counter-bore of the head 8. Furthermore
the radial constriction of the ?ngers may be effected for 65 constriet said independent ?ngers against the skirt of the
cap but will yield in any radial direction, thus permitting
example by causing a ring or sleeve to slide along inclined
said constricted ?ngers to follow irregularities of the con
outer sections of said ?ngers.
tainer neck below its bead.
Thus the invention is not limited by the constructional
features just described and shown, but only by the ap
References Cited in the ?le of this patent
pended claims.
UNITED STATES PATENTS
We claim:
1. A capping head for tightly securing a closure cap to
949,678
Hermann _____________ .._. Feb. 15, 1910
a container having a beaded neck, comprising a tubular
Документ
Категория
Без категории
Просмотров
0
Размер файла
498 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа