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Патент USA US2127224

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Aug. 16, 1938.
k
LOMBARDI
2,127,224
KNITTING MACHINE
Filed April 25, 1955
2 Sheets-Sheet 1
Aug. 16, 193.8.
1
v; LOMBARDI
2,127,224
KNITTING MACHINE
' Wlm?ardé
BY WM 2097442414“
ATTORNEY.
Patented Aug. 16, 1938
2,127,224_
UNITED STATES PATENT OFFIC
2,127,224
KNITTING MACHINE.
Vincent Lombardi, Garden City,'N. Y., assignor to
Lombardi Knitting Machine Co. Inc., New York,
N. Y., a. corporation of New York
Application April 25, 1935, Serial No. 18,091
11 Claims.
This invention relates to knitting machines
and more particularly to knitting machine con
structions utilizing pattern wheels and similar
rotatable pattern elements.
An object of the invention is the provision of
a simple and sturdy mechanism of an improved
type whereby design fabrics may be readily pro
duced.
Another object of the invention is the provi
sion of improved means whereby a high degree
of selectivity may be obtained by a pattern wheel
construction.
A further object is the provision of means
whereby a series of similar needles or other knit
ting elements may be effectively and ef?ciently
operated with a high degree of selectivity.
Another object is to provide means whereby
knitting elements may have movements of an
extraordinary extent imparted thereto by a pat
20 tern wheel.
Still another object is the provision of im
proved means for driving a pattern wheel.
Other objects of the invention will in part be
obvious and will in part appear hereinafter.
The invention accordingly comprises the fea
tures of construction, combinations of elements,
and arrangements of parts, which will be ex
empli?ed in the constructions hereinafter set
forth and the scope of the application of which
will be indicated in the claims.
For a fuller understanding of the nature and
objects of the invention reference should be had
to the following detailed description taken in
connection with the accompanying drawings, in
which:
'
Figure 1 is a vertical sectional view of one form
of knitting machine embodying the invention;
Fig. 2 is a side view thereof;
Fig. 2a, is an enlarged detail view looking from
40
the needle bed illustrating the pattern wheel
construction;
Fig. 3 is a detail view showing a knitting ele
ment engaged by an actuator in one row;
Fig. 4 is a similar view showing a knitting
‘ element engaged by an actuator in another row;
Fig. 5 is a similar view showing a knitting
element unengaged by an actuation in either
row;
Fig. 6 is a view similar to Fig. 4 illustrating a
somewhat modi?ed form of pattern wheel;
Fig. 7 is a view similar to Fig. 1 illustrating a
modi?ed construction;
Fig. 8 is a side view thereof;
Fig. 9 is a somewhat diagrammatic showing of
Ch vi a manner of operation of the construction illus
trated in Figs. 7 and 8.
Fig. 10 is a view similar to Figs. 1 and 7, show
ing still another modi?cation; and
60
Fig. 11 is a side view of a slightly modi?ed
construction,
.
(Cl. 66—50)
In the production of design fabrics—for in
stance, interlock fabric such for example as de
scribed in my Patent No. 1,541,230, fabric em
bodying tuck stitches, Welt stitch fabric, etc.,—by
mechanism wherein needles are disposed in three
or more positions at the time a yarn is fed, it
has long been recognized that, because of tend
encies toward bending and breakage, inaccura
cies in operation, and other factors, the use of
needles having different length butts and the 10
use of selecting cams are undesirable.
Various
constructions for avoiding these drawbacks have
been suggested, but such constructions have, for
the most part, been cumbersome in operation,
complicated in construction, or expensive to 15
manufacture or operate, or have been subject to
limitations such that they‘ were not adapted for
a wide ?eld of utility.
With the foregoing and other di?iculties in
mind, the present‘ invention contemplates the
provision of exceedingly simple and highly ef
fective means whereby needles may with ease
and certainty be selectively disposed in three or
more positions,—such, for instance, as a position.
in which a needle will receive a yarn and knit, 25
a position in which it will receive a yarn with
out knitting, and a position in which it will pass
a yarn,—as desired for the production of a par
ticular design being produced; or so that needles
or other knitting elements may with ease and 30
certainty be disposed in three or more positions
for other purposes.
In accordance with the invention there is pro
.vided a rotary pattern unit, which may be of
pattern wheel construction, so formed that it 35
will operate on needles or other knitting elements
of similar character in a desired manner for the
production of a design fabric without interposi
tion of other selecting means.v
.
Again, the provision of a pattern wheel which 40
vwill impart an extended movement of a knitting
element has also long been sought, but in spite
of the well recognized need for such pattern
wheels the ordinary pattern wheel having an
angularity of only about 22 degrees is still in 45
general use. In accordance with the invention,
however, a pattern wheel having any desired
angularity and adapted to impart movements of
an extraordinary extent to a knitting element,
may be readily provided.
~
50
While the invention is exempli?ed as embodied
in a circular knitting machine having a sta
tionary needle cylinder which carries an annular
series of latch needles, it will be understood that
the bed on which the knitting elements are car
55
ried may be of any desired shape or form and
may be stationary or movable as desired, and
that the knitting elements may bein the form
of latch needles, beard needles, jacks, sinkers, or
yarn controllers, or may be of any other well
so
2,127,224
2
will be further apparent by an inspection of Figs.
3, 4 and 5 which illustrate the position of the
known or suitable type. If the bed is stationary,
there may be provided actuator mechanism
which is movable about or along it; whereas, if
it is movable, the actuator mechanism may be
stationary.
needles at the period when a butt is engaged by
an actuator in the'lower slot. .‘At this lperiod an
actuator in an upper slot will already have ad
.vanced a needle to the position shown in Fig. 3,
and will still advance the needle a further dis
‘ tance as indicated by the arrow. As shown in
The knitting machine exempli?ed in Fig.1, .,
comprises a needle cylinder l2, formed with annu
lar series of slots I3, in many or allof which
there are disposed needles l4,_‘each carrying a
10 latch 15 of the usual typev and formed with an
actuatable part in the form of a butt l6. . About
Fig.v 4, any actuator in, the lower slot will be just
in engagement with the butt ready to advance 10
it a distance indicated by the arrow in this ?gure.
the cylinder there is movable a support I1, on
which there‘ may be carried a desired number of '
yarn feeds, aligning cams such as stitch cams
15 and/or restoring cams, and other usual or suit
ableelements, and also a suitable number of
pattern wheel units I8.
I
Each pattern wheel unit I8 is formed with an
upper row IQ of con?gurations and a lower row
20 20 of con?gurations, each row including portions
adapted to act selectively on the butts of the
needles. The rows of con?gurations are provided,
in the form of construction exemplified in Figs. 1
thru 5, by selectively disposing, in two peripheral,
25 axially disposed, rows of radial slots 2| at the
periphery of pattern wheel, actuator members 22.
The slots are formed by radially extending teeth
22a, providing a construction adapted to mesh
with the buttsl? of the needles M. The outer
ends of the actuator members terminate inside
of' theTouter portions of the slots and beneath
the upper portion thereof so as not to interfere
with the meshing action by which the pattern
,
wheel is driven.
In order to prevent ‘binding of the butts or
other parts of the needles which are engaged, the
slotted portions are preferably, in accordance
with the invention, made wider than the butts or
other engaged parts, and are separated by a
cut-away portion 23, and in the form of construc
tion exempli?ed in Figs. 1 thru 5, each slot in the
lower row is staggered slightly beyond the corre
sponding slot‘ in the upper row in the direction
in which the pattern unit engages successive
45 needles, in the manner shown in detail in Fig. 2a.
This arrangement permits the needle butt to
move freely during its relative downward move
of a preceding and/or succeeding pattern wheel
which will actuate the same needles.
In order to
produce “interlock” fabric a plurality of actuators
may be disposed in contiguous slots in the upper
row of one pattern wheel, as shown at “a,” and a 25
plurality of actuators disposed in a contiguous
portion of the same pattern wheel, but in the
lower row, in alternate or otherwise spaced slots
as shown atv “b”; while on a preceding and/or
succeeding pattern wheel actuators are disposed
in alternate or' otherwise spaced slots in a part of
the lower row vwhich will act on the same needles
as were controlled by the actuators at “a”, and a
plurality of actuators disposed in contiguous slots
'in a portion of the upper row whichwill act on
the same needles as were controlled by the ac
tuators at “b”. Tuck stitches or other stitches,
and a wide variety of other design effects may
likewise be produced by variations in the settings
of the actuators, as will be apparent to those 40
skilled in the art.
,
'
Desirably the actuators are removably held in
the slots to permit ready resetting when a dif
ferent type of design fabric is to be produced.
To this end the slots are closed by upper and
lower plates 25 and 26 respectively, which are re
movable from the body of the pattern wheel upon
the unscrewing of screws 21.
out frictional action due‘to the combined angu
has vbeen found desirable to dispose the actuator .50
much simpler to cut.‘
'
As will be apparent from Fig. 1, when an actu
ator 22 is in a slot of the upper row it will en
gage the under side of a butt of a needlesoon
after its slot has received this butt and willexert
an advancing action on the needle throughout an
60
no actuator and will pass through the slot with—
out being. moved at all.
In order to produce a welt stitch in a portion of 15
the fabric, it is only necessary to provide a plu
rality of actuators in contiguous slots in a part
of the upper row of one pattern wheel as shown at
“a” and to provide actuators in alternate or
otherwise spaced slots in a part of the lower row
ment-through the slots without binding and with
lar and rotative movement of the pattern wheel.
If desired, the sides of the slots may be continuous,
and still accomplish the same purpose if curved
somewhat, but the illustrated construction is
55
As shown in Fig; 5, the butt will be engaged by
extended portion of the pattern wheel movement,
so that ‘when the slot leaves the butt the needle
will have been raisedto level A (which may be a
“knitting” level). When an actuator 22 is in
‘ a slot of the lower row, and no actuator is in the
~
‘
1. Similarly, whetherv or not slots are utilized, it
portions in a lower row somewhat forwardly of
the position in which actuator portions would be
in an upper row, in that direction in which the
pattern unit engages successive needles, so that
a positive engagement of the needle butts or other
engaged part will be assured in spite of the change
in effective position of the pattern wheel parts. 1
As will be seen, each butt is of su?icient'ex
tent so that it will have entered a lower slot before
it moves'out of the upper slot. If desired, how 60
ever, slots may be provided in only one row, and
the actuators may be utilized without slots on the
remaining row or rows.
The reception of the
butts by the slots in the slotted row or rows is
ordinarily'su?icient to drive the pattern ‘wheel,
slot above it, the butt I6 will not be engaged by
the actuator, for a considerable time after the
butt has been received by the slot and the needle
will‘only be raised to level B (which may be a
i“tucki_ng” level). When there is no actuator in
but if desired the shank of the needle may be
widened to mesh with the slots. vIn Fig.7 6 there
slots, the butt will never be engaged and the
needle will not be raised, but will remain at level
widened at 28 to mesh with particular effective
ness with the teeth 22a forming the slots in the
upper row in the present instance. ‘Asrwill be
70 either the upper or lower one of a pair of aligned
C (which may be a level at which'no yarn is re
ceived) .
‘
‘
The operation of the actuators on‘ the needles
is illustrated a construction wherein'theupper
row is slotted and wherein the lower row is pro
vided with actuators but with no butt-receiving 70
slots, and wherein the shanks of the needles are
seen, the teeth in the lower row are omitted, so 75
2,127,224
that whereas both the actuators 22 and the teeth
in the upper row contact portions of the needles
l4, no elements in the lower row except the ac
tuators 22 will contact the needles.
In accordance with the invention, various rows
of con?gurations on a rotatable pattern unit may
act to move the needles or other knitting elements
in different directions as well as to different ex
tents in the same direction. In Figs. 7 and 8
10 there is shown a pair of pattern wheels, one pro
viding a row of con?gurations for raising the
needles and another providing a row of con?gura
tions for lowering the needles. In this embodi
ment of the invention there is provided a needle
15 bed I2a formed with slots |3a carrying needles
Ma. As a needle is provided with an upper butt
30 and a lower butt 3! the rotatable pattern unit
comprises a pattern wheel element 32 having up
ward angularity and provided with a row 33
20 of con?gurations which may be similar to the
con?gurations in the upper row of the pattern
wheel unit l8, as illustrated, or may be otherwise
arranged as desired and a pattern wheel element
34 having downward angularity and ‘provided
TO C1 with a row 35 of con?gurations wherein the actu
ators may be disposed, as illustrated, only in those
slots which in the pattern wheel unit l8 hold no
3
by the slots of the upper row with an actuator
while that row is acting. The shank may be
similarly widened above the butt 30 or below the
butt 3|, if desired. As will be readily understood
a positioning of the needles at a number of addi
tional levels may readily be attained, as for in
stance‘ by substituting a patttern‘ wheel construc
tion of the type shown at‘ l8 for one or both of
the members 33 or 35.
-
While arrangements such as above exempli?ed 10
permit the utilization of a pattern wheel having
a considerably greater angularity with respect to
the line of relative movement of the bed of the
pattern wheel than is ordinarily the case, the in
vention contemplates the provision of a construc 15
tion such that the pattern wheel may be dis
posed at any desired angle. A simple form of
such construction is exempli?ed by the construc
tion shown in Fig. 10 wherein there is provided a
needle bed I21) carrying needles Mb formed with
butts l?b and adapted to be selectively actuated
by a pattern wheel 159 carrying at its periphery
a plurality of selectively disposed actuators 2'21)
held in slots 4| which terminate short of the
needle butts. Removal of the actuators for re
setting is permitted by the provision of a re
movable plate 42.
Since the pattern wheel is
provided
needle-engaging
actuators in either the upper or the lower row,
or may be otherwise arranged as desired. As will
30 be apparent, when a butt 3!] is received by a slot
21a of the row 33 it maybe engaged by an actu
ator therein and advanced or may be passed
if no actuator is in the slot. When a butt 3| is
received in a slot Zla of the lower row of con
amount of angularity is not limited by any tend
ency of the butts to bind in the slots. However, 3O
the pattern wheel will not be driven by the needles
and in order to drive the pattern wheel it is
?gurations the needle will be retracted if an
actuator 22a is-in the slot or may be passed if no
actuator is in the slot. Obviously actuators should
not be placed in corresponding slots in both the
upper and lower rows. It is accordingly a simple
40 matter to dispose the needles at three levels.
an annular helical gear 41 which is ?xed to the
needle bed. The pattern wheel is thus positively
driven by sturdy and simple means.
It is apparent that the angularity of the pattern
When an actuator is in an upper slot a needle
will be moved upward from level B to level A;
when an actuator is in a slot of the lower row
the needle will be moved from level B to level C;
whereas when actuator is in neither of a pair of
corresponding slots the needle will remain in
level B. In this manner a setting of needles as
shown in Fig. 9, or any desired setting of needles
may be readily attained. Whereas in Fig. 1 the
50 needles will already have been aligned in the
proper position by the usual stitch cam or re
storing cam, in Figs. '7 and 8 it is desirable that the
alignment be at the level B, which in the case oi
latch needles will be the “tucking” level, and this
is e?ectuated by means of a cam 36.
While pattern wheel elements may be entirely
independent they act, and are considered herein,
as -a unit; and desirably they are provided with
inter-meshing gears 31 and 38, so as to assure that
60
the corresponding slots will not get out of align
ment. Moreover, while the pattern wheel ele
ments 32 and 34 are illustrated as being formed
with slots which mesh with the butts, such slots
may be omitted at one or the other row, or may be
omitted entirely, and the rotatable pattern unit
driven by an external gear in a manner such as
hereinafter exempli?ed or in other suitable man
ner. As exempli?ed there is provided a construc
tion wherein the assurance of meshing of the
slots with the needles is had in a particularly
positive manner by the widening of the shank
of the needle as indicated at 39 so that the shank
will mesh with the slots of the lower row while
the needles are being actuated by actuators in
75 that row, and so that the shank will be engaged
with
no
slots, ' the
provided with a bevel gear 43 meshing with a
bevel gear 44 keyed to a shaft 45. Also keyed
to this shaft is a helical gear 46 which rolls on
wheel and the consequent extent of movement 40
of the needles or other knitting elements by the
pattern wheel, is dependent only upon the pitch
of the gears 43 and 44, and that accordingly any
desired angularity or extent of movement is
permitted.
45
The construction shown in Fig. 11 is generally
similar to that shown in Fig. 10, the various parts
being indicated by similar reference numerals
with the subscript c. In this case, however, the
pattern wheel Me has two rows of actuators 220,
which may be arranged similarly to the actuators
in Figs. 1 and 2, but which are held in slots which
terminate short of the butts.
Since certain changes may be made in the
above construction and different embodiments of 55
the invention could be made without departing
from the scope thereof, it is intended that all
matter contained in the above description or
shown in the accompanying drawings shall be
interpreted as illustrative and not in a limiting 60
sense.
I claim:
1. A knitting machine comprising a bed, actu
ator mechanism, said bed and said actuator mech
anism being mounted for relative movement, a
series of knitting elements slidably carried on
said bed, and a rotatable pattern unit forming
a part of said actuator mechanism, said rotatable
pattern unit comprising a plurality of rows of
con?gurations having a similar angular disposi 70
tion and each including selectively disposed knit
ting-element-engaging portions, each portion in a
less advanced row being disposed somewhat for
wardly in the direction in which the pattern unit
engages successive knitting elements of the posi 75
2,127,224
4
one of said rows for meshing with'said parts of
the knitting elements, there being no such slotted
tion in which it would be placed in a more ad
vanced row to engage the same knitting element
that it is adapted to engage.
2. A knitting machine comprising a bed, actu
means at at least one of such rows.
6. A knitting machine comprising a bed, ac
ator mechanism, said bed and said actuator mech
anism being mounted for relative movement, a
series of knitting elements slidably carried on
said bed, and a rotatable pattern unit forming a
part of said actuator mechanism, said rotatable
10 pattern unit comprising a plurality of angularly
disposed rows of slots adapted to mesh with’ a part
of the knitting elements and actuators selectively
disposed therein for imparting sliding movements
of di?erent extents to selected ones of the knit»
ting elements depending on the row in which
an actuator is placed, each slot portion in a less
advanced row being disposed somewhat forwardly
of the corresponding slot portion in a more ad
vanced row in the direction in which the pattern
unit engages successive knitting elements.
3. A knitting machine comprising a bed, actu
ator mechanism, said bed and said actuator mech
anism being mounted for relative movement, a
series of knitting elements slidably carried on said
r
.15
bed and having parts adapted to be engaged by
knitting-element-engaging portions on a rotat
able pattern unit, and a rotatable pattern unit
forming part of said actuating mechanism, said
rotatable pattern unit comprising a plurality of
angularly disposed rows of con?gurations includ
ing selectively disposed knitting-element-engag
ing portions each adapted to impart sliding move
ment to a knitting element in accordance with the
positioning of its row, said pattern unit being
one of said rows for meshing with portions of said
knitting elements, said knitting elements being 15
formed with longitudinally-extending widened
portions for meshing with said meshing means
over an extended distance longitudinally of said
knitting elements.
'
'7. A rotatable pattern wheel for knitting ma 20v
chines comprising a plurality of oblique rows of
selectively disposed knitting-element-engaging
portions, such portions being omitted in a‘ more
advanced row at least at those points where such
a portion in a less advanced row is to act, and 25
each portion in a less advanced-row being disposed
somewhat forwardly of the position in which it
Would be placed in a more advanced row to engage
the same knitting element that it is adapted to
engage.
'
‘
8. A rotatable pattern wheel for knitting ma
chines comprising a plurality of oblique rows of
slots with actuators selectively disposed therein
for engagement with knitting elements, each slot
portion in .a less advanced row being disposed 35
for meshing with said parts of the knitting ele
ments to drive said pattern unit, and said pattern
portion in a more advanced row.
no projecting means at positions alined with at
least a portion of the aforesaid projecting means.
40
4. A knitting machine comprising a bed, ac
tuator mechanism, said bed and said actuator
mechanism being mounted for relative move
ment, a series of knitting elements slidably carried
on said bed, and a rotatable pattern unit forming
part of said actuating mechanism, said rotatable
pattern unit comprising a plurality of angularly
disposed rows of con?gurations including selec
tively disposed knitting-elemcut-engaging por
tions each adapted to impart sliding movement
to a knitting element in accordance with the
positioning of its row, means on said rotatable
pattern unit at one of said rows and adapted to
mesh with portions of said knitting elements,
said rotatable pattern unit being so formed that
no part thereof except said knitting-element
engaging portions will contact said knitting ele
ments at at least one of said rows.
‘
5. A knitting machine comprising a bed, ac
tuator mechanism, said bed and said actuator
mechanism being mounted for relative move
ment, a series of knitting elements slidably car
ried on said bed and having parts adapted to be
engaged by knltting-element-engaging portions
65
tion and each including selectively-disposed knit
ting-element-engaging portions, means at only
formed at one of said rows with projecting means
unit being so formed at another row as to have
50
tuator mechanism, said bed and said actuator
mechanism being mounted for relative movement,
a series of knitting elements slidably carried on
said bed, and a rotatable pattern unit forming
part of said actuator mechanism, said rotatable
pattern unit comprising a plurality of rows of 10
con?gurations having a similar angular disposi
on a pattern wheel, and a pattern wheel forming
part of said actuator mechanism and comprising
a plurality of rows of con?gurations having a
similar oblique disposition and including selec
tively disposed knitting-element-engaging por
tions, and slotted means independent of at least
somewhat forwardly of the corresponding slot
9. A rotatable pattern wheel for knitting ma
chines, comprising a plurality of oblique‘ rows of
selectively disposed knitting-element-engaging
portions, such portions being variously positioned
40
in the Various ones of said rows, said pattern
wheel being formed at only one of said rows with
projecting teeth adapted to mesh with knitting
element portions to drive the pattern wheel, vsuch 45
teeth being omitted at the other of said rows. 7
10. A rotatable pattern Wheel for knitting ma
chines, comprising a plurality of oblique rows of
actuator-receiving portions, actuator elements
selectively and removably disposed at various 50
points in each of said rows and extending radially
of said wheel atthe periphery thereof, and radial
ly-extending teeth at the periphery of one of said
rows but not at the other of said rows, said teeth
being adapted to mesh with‘ knitting-element
portions to drive the pattern wheel.
55
I
11. A knitting machine comprising a bed, a
series of knitting elements mounted for move
ment on said bed, and an oblique pattern wheel
arranged to selectively actuate said knitting ele 60
ments and comprising a plurality of oblique rows
of selectively disposed knitting-element-actuating
portions, said pattern wheel being formed at one
of said rows with teeth adapted to mesh with
portions of the knitting elements to drive the 65
wheel and to provide slots in'which said actuat
ing portions are disposed, and ‘said pattern wheel
having no such teeth at the other of said rows.
1
VINCENT LOMBARDI.
1
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