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Патент USA US2411719

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Nov. 26, 1946.
o. FREGEOLLE'
WRAP MECHANISM
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Filed April 9, '1946
‘ 2,411,719
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2 Sheets-Sheet >1 '
[NYE/V7771? .1. '
Nov. 26, 1946.
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o, FREéEOLLE
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v12,411,719
WRAP MECHANISM
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FIG-3
Filed- April 9, 1946
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2 sheets-Sheet 2“
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2,411,719
Patented Nov. 26',’ 1946
OFFICE
Oscar Fregeolle, Centr
, 'Hem-phill, Company,
Central Falls, It. I., a cor
poration of Massachusetts -
‘ ‘Application April9, 1946, Serial No. 660,790
(Cl. 66-435)
6 Claims.
~ This application is a continuation in part of -
U._>S»..application No. 559,136‘, ?led October 118,
1194i. "
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ping head (not shown), the elevation of which
‘is that suitable for wrapping selected needles
working in the lower cylinder. The associated
wrap horn 4 is shownin its‘ inoperative position
by solid line and in its operating position by dot
and dash line at 4'. This horn may be of any
desired contour, that shown being the improved
type described and claimed in co-pending appli
cation #607,300, ?led July 27, 1945.
This invention relates to the mechanism
10
whereby the wrap horn is moved from its
inoperative to its operative vposition and vice
versa‘ automatically and in time‘with the move‘
ment of the wrap spindle to and from its inop
r
' This ‘invention relates to an» improvement in
circular,- independent needle knitting machines
of the superposed, co-axial cylinder type and, in
particular, to wrap mechanisms for‘ such ma
chines in which are included‘ a spindle adapted to
be» positioned. both eccentrically and 'concentri-'
cally‘ of-the cylinders and ‘a wrap horn.‘ A vVerna-y
chine of this character/is described in co-pend
ingva-pplication" #559,136, ?led’ October-118, 1944.
By this invention means is provided for moving
the wrap» horn into and‘out of operating posi
tion-through: the motion‘ of the wrap spindle 15 p
erative'and operative positions. _
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4 is mounted at
from. concentric to eccentric position-and vice
' ~ As shown in: Fig. 1, wrap horn
versa. One form of the inventioniis shown in the
upper end by plate-6. Plate 8' is fastened to'an->
other plate-‘fl in such away that it is longitudi
drawings or which:
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“Fig; 1 is av view partly in section of a partof.
a. knitting vmachine of the type referredvto; illus 20
trating in ‘particular the operativeand. inopera
ative positions ‘of, the wrap. horn.‘ and the means
by which it is moved from one position to the‘
"Figs 2. isa .view of a part ‘of the wrap horn‘. op'-,
erating mechanism. as positionedv when the wrap’
spindle, is moving, intoits eccentric. wrapping po
sition and the wrap horn.‘ in i-tsioperatin'g position:;..
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'uFig. 3 is a plan
of a
of ‘Fig. lil's'howe
ing. the position of certain parts when, the wrap
spindle is in its concentric position and. the; wrap.
horn inoperative; and.
one end on a shaft 5 which is rigidly held at its
Plate/ '1 is rigidly mountedv on
the top of a shaft 8 which is ‘longitudinally slid-v
able» in a sleeve 9 and is urged towards its lower-g
most position by a spring i=0.’
In Fig. 1 shaft 8 is shown in full‘ line in ‘its up
25 position and wrap'horn 4 is also shown in full .
line in‘ its'up or inoperative position, The down
position of- ‘shaft '8» is indicated at dotted line at
8’,and' the corresponding down or operative po
- sition- of wrap horn 4 is indicated in dot and
30 dash line ‘at 4’.
"The outer end II of plate 1 moves in a slot 12
. of ‘plate _l3 whereby ‘it is ‘held in longitudinal
nally adjustable.
alignment. Associated with the outer end H of
.
plate ‘I is a- bell crank I4‘, the lower end l5>of
which underlies plate 1 as best shown in Figs. 1,
azFig, ,4‘ isanelevation ‘of: thexparts shown. in Fig.
‘. 35 2 and 4. If the upper arm I16 of hell cranl; l-4v-is
3 and representing thesame conditions.
:Injtwo rcylinder- machines of the, above-type and
as described in the co-pending-qapplication ure
terr'ed to, the wrap. spindle,..when inoperative, is
rockedv so that its lower arm I5 is raised, as
shown. in Fig. 4, plates 1 and 6 and shaft'5 will
be raised; to move wrap horn 4 into the inopera
tive position shown in full line in Fig. 1. If Lbell
crank I4 is permitted to rock-in the other direc
tion so that its arm l5 swings downward‘, plate T1
pqsitionedisubstantially in thegcenter of the cyl
inder, i._e., concentric-therewith. To wrap, this
spindle is. swung from this central position until
itsjwrappinghead overlaps theneedle. circle above
the .needlesyof the lower. cylinder‘ incthe manner.
well, known in: connection with. single cylinder
machines.
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, .Also, aslis well known in relation to single cyl
inder machines, a wrap horn isusedv under which,
and 6 and shaft 5 will lower wrap horn ‘4? into
its operative position shown in dot and dashv line
4'5 in‘Fig. '1. Springv II! will insure that shaft‘
45 - at
8, which is the ‘support for these elements,'will
move down to the extent permitted-"by slot‘ 12
through which ‘plate- 1 extends.
Y‘ Bell crank it is‘ operated as just described by
ping-head to the needles selected for, wrapping:
the
means which supports the wrap spindle and
50
to. {be guided and" maintained ‘at theproper'
which moves the wrap spindle between its con;
heightsfor the .wrapping'operation.
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centric and eccentric position. This consists of
In Fig. 1 of the drawings, the lowerand upper»
a’ ‘substantially, annular plate 18' swingably
cylinders-areshown-‘at ll-l‘and 2 respectively. The
mounted
at one side I9 and which is supported,
wrap spindle 3 projects through the upper cylin
preferably, by a ball bearing 20. Plate l8 sup
. theiwrap-yarn passes on, its way from the, wrap- I ~
der and terminates at its lower end in a wrap
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3
2,411,719
ports a gear (not shown) by means of which the
wrap spindle is driven and which is keyed to the
wrap spindle. For further details of this ar
rangement reference may be had to co-pending
application #559,136.
The other side of plate I8 is provided with an
extension or arcuate portion 2| on which is
mounted a roller 22. Roller 22 runs upon a track
23 best shown in Figs. 3 and 4 which thus serves
position and for causing said wrap horn to be
moved into operating position when said support
is swung to move said spindle into its eccentric
position.
,
2. For-a circular, independent needle, knitting
machine having a wrap spindle and wrap horn,
the combination of a support for said spindle
adapted to be swung between a position in which
as the support for this side of plate I8. Because 10 the spindle is eccentric to the needle circle and
a position in which said spindle is substantially
of ball bearing 20 and roller 22 plate I8 and the
concentric with the needle circle and means op
wrap spindle assembly can swing freely upon the
erated by said support for raising said wrap horn
ball bearing as a pivot along track 23. The
into inoperative position when said support is
means for swinging plate I8 as described is indi
cated at 24.
It can take any suitable form. 15 swung to move said spindle into its concentric
position and for causing said wrap horn to be
Track 23 is provided with adjusting nuts 25 and
26 by means of which the limit of swing of plate
I8 in each direction can be established.
Extending outwardly from arcuate portion 2|
lowered into operating position when said sup
port is swung to move, said spindle into its eccen
tric position.
3. For a circular, independent needle, knitting
is a pin 21 adapted to engage with the inside edge 20
machine having a wrap spindle and wrap horn,
of arm I6 of bell crank I4. The arrangement is
the combination of a support for said spindle
such that when plate I8 is swung in the direc
adapted to be swung between a position in which
tion to position wrap spindle 3 concentrically of
the spindle is eccentric to the needle circle and
the cylinder pin 21 will engage arm I6 of bell
crank I4 to rock it in the same direction and to 25 a position in which said spindle is substantially
concentric with the needle circle and means op
thereby raise the other arm I5 of bell crank I 4
eratedby said support for raising said wrap horn
and, through the connections described, raise the
into inoperative position during the ?nal stage
wrap horn 4 into its up inoperative position.
of the swinging of said spindle towards its con
When plate I8 is swung the other way to move
centric position and for causing said wrap horn
the warp spindle into its eccentric operating po
to be lowered into operating» position during the
sition pin 21 will tend to leave arm I6 which,
initial stage of the swinging, of said spindle to
consequently, permit shaft 8 to drop through
its eccentric position by said support.
inertia and the e?ect of spring I 0, so that the
. 4. For a circular, independent needle, knitting
wrap horn is lowered into its operative position.
It is essential that the wrap horn shall be in 35 machine having a wrap spindle andwrap horn
positive means for raising said wrap horn from
operative position before the wrap spindle reaches
its operative position. Consequently, the parts
a low to a high position, resilient means for re
turning said wrap horn to said low position,
swingable means for controlling said wrap horn
to lower the wrap horn during the ?rst part of
the swing of plate I8 after which plate I8 con 40 raising and lowering means, said swingable means
also being the means whereby the wrap spindle
tinues to swing until wrap spindle 3 is established
is moved to and from a position substantially con
in its operative position, pin 21 leaving arm I6
centric with the needlecircle.
during this part of the swing. This is illustrated
5. For a circular, independent needle, knitting
in Fig. 2 in which it will be'noted that plate 1
machine of the superposed co-axial cylinder type
and, consequently, the wrap horn has been fully
having a wrap spindle and a wrap horn, the com
lowered when roller 22 reaches the full line posi
bination of a support for said spindle adapted to
tion shown in Fig. 2. The ?nal position of roller
be swung betweena position in which the spindle
22 at the end of the swing of plate I8 in this
direction is shown in dot and dash line at 22'. . is eccentric to the needle circle and a position in
From this it follows that, when plate I8 swings in 50 which. said spindle is substantially concentric
with theneedle circle and means operated by said
the other direction to transfer wrap spindle 3
support for‘moving said wrap horn into inoper
from its operative to its inoperative position, the
ative position when said support is swung to move
initial part of this swing will not affect the posi
said spindle into its concentric position and for
tion of the wrap horn which will remain in its op
causing said wrap horn to. be moved into opererative position until pin 21 again strikes arm
ating position when said support is swung to
I6 of bell crank I4 and swings it backward so
move said spindle into its eccentric position.
that plate ‘I is lifted by the upswing of arm I5.
6. For a circular, independent needle, knitting
That is to say, the horn is not raised until the
machine of the superposed co-axial cylinder type
wrap spindle has been swung out of the way.
The resulting position of bell crank I4 and plate 60' having a wrap spindle and a wrap horn, the com
bination of a support for said spindle adapted
‘I is shown inFig. 4.
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to be swung between a, position in which the
I claim:
f
spindle is eccentric to the needle circle and a
1. For a circular, independent‘needle, knitting
position in which said spindle is substantially con--v
machine having a wrap spindle and wrap horn,
the combination of a support for said spindle » centric with the needle circle and means oper
ated by said support for raising said wrap horn
adapted to be swung between a position in which
into inoperative position during the ?nal stage
the spindle is eccentric to the needle circle and a
are so arranged that bell crank I4 will operate
position in which said spindle is substantially
of the swinging of said spindle towards its con
centric position and for causing said wrap horn
erated by said support for moving said wrap horn 70 to be lowered into operating position during the
initial stage of the swinging of said spindle to its
into inoperative position when said support is
eccentric position by said support.
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swung to move said spindle into it's concentric
concentric with the needle circle and means op
OSCAR 'FREGEOLLE.
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