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Патент USA US3075383

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Jan. 29, 1963
w. GRENDELMEIER
3,075,373
PATTERNING DEVICE FOR KNITTING MACHINE
Filed June 8, 1960
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ZNVENTOR
Werner GrendaLmei-zr
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United States Patent ()??ce
tion. If needle butts which rapidly succeed each other
on different paths approaches the path alignment area, it
was absolutely necessary to open the exit channel, which
had been closed in order to maintain the path of the pre
3,675,37 3
PATTERNING DEVICE FOR KNITTBNG MACHINE
Werner Grendelmeier, Zug, Switzerland, assignor to Paiiz
Holding AG., Zug, Switzerland
Filed June 8, 1960, Ser. No. 34,820
Claims priority, application Switzerland June 17, 1959
2 Claims. (Cl. 66-960)
ceding needle butt, fast enough that the'next following
needle butt could enter said exit channel. However, in
view of the relatively long closure path, this was possible
only with very strong vswing cam springs which in their
turn naturally again opposed such resistance to the needle
The present invention relates to a knitting machine with
butts that the movement of the slide could take place only
with expenditure of a great force. If it were desired
at least one needle bed with guideways for the needles,
and needles in the needle bed with each needle having a
needle butt with a short projection parallel to the needle
to produce patterns and particularly so-called jacquard
patterns, alternately to remove a part of the knitting nee
dles from the knitting process and bring them into an
ineffective position while the knitting is effected only with
Patented Jan. 29, 1963
2
l
shank.
In knitting machines, it is frequently necessary in order
3,075,373
to avoid this disadvantage, this could be done only by the
provision of weaker springs which, however, led to much
too slow a return of the swing cams, so that upon the
15
arrival of the following needle butt on the other path,
the exit channel in question could not be opened in suffi
cient time, thereby resulting in improper guidings.
The object of the present invention is 'to avoid these
disadvantages by providing a'patterning device for ‘knitting
the remaining needles, and then to shift said last men
tioned needles in their turn into the ineffective position 20 machines of the said type in which the correct guiding
of the needle butts can be de?nitely assured without a
and then employ for the knitting the needles which were
previously excluded from the knitting process.
In the case of larger knitting machines, this changing
great expenditure of force,
A patterning device in accordance with the present in
vention is characterized by the fact that the paths lie in
erating position and vice versa is effected by the known 25 two super-imposed planes at the path alignment area.
One embodiment by way of example of the subject mat
jacquard devices with jacquard cards, jacks, or with aux
of a part of the needles from the rest position into the op
iliary locks as described, for instance, in the US. patent
to Schumm, Patent No. 2,914,933, dated December 1,
ter of the invention is shown in the drawing, in which:
FIGURE 1 is an elevation of a needle butt;
FIGURE 2 is a cross-section through the patterning
1959, etc. In simple knitting machines and in particular
in hand knitting apparatus, the provision of these compli 30 device taken along the line 2-—2 of FIGURE 3 in the di
rection of the arrows;
'
cated and costly jacquard devices has not paid for itself,
FIGURE 3 is a cross-section through the patterning de
aside from the fact that the operation is much too cumber
vice taken along the line III-~III of FIGURE 2 in the
some.
In general, recourse has been had up to the present time 35 direction of the arrows, and
FIGURE 4 is a perspective view of the patterning de
in the case of these simpler knitting machines and hand
vice, omitting all the frame parts.
'
knitting apparatus to combs whichcorrespond to the pat
The patterning device shown in the drawing is particu
tern in question with which one part of the needles is dis
larly suitable for use in hand-knitting'apparatus, in which
placed by hand from the ineffective position into the op‘
erating position and thereupon, in a following knitting op 40 case it is intended to be installed in a lock, which is mov
able as customary, at right angles to the needle guides 1
of a needle bed 2. This lock has not been shown in the
drawing, in order not to clutter it unnecessarily.
The patterning device itself consists of a frame or fram
erating position, such complementary combs being dis
closed, for instance, in the Swiss ,Patent No. 115,090 of 45 ing 3 which is bent over at its longitudinal sides and has
a base plate 3a. In the framing a number of cam blocks
May 17, 1926.
are installed to form the two intersecting paths 4 (dot
Aside from these simple auxiliary devices, there have
dash line) and 5 (dashline) which have aligned spaced
alsoalready been proposed slides, or a sort of auxiliary
eration, after all the needles are again in the ineffective
position, a complementary comb brings the other part
of the needles out of the ineffective position into the op
lock by the displacement of which along the needle bed,
portions.
The patterning device is positioned on the
needle bed 2 and may be secured to the usual cam block
i.e. transverse to the direction of movement of the nee 50
(not shown) which is displaceable transverse to ‘the needle
dles, said change in position from the ineffective position
to operating position and vice versa could be eifected.
The previously known patterning devices of this type in
which the paths for the intersecting needle butts always
bed (in the direction of the arrow 14, FIGURE 3) 1'11.
order to actuate the needles. Parallel to the phase plate
3a and thus also parallel to the needle bed 2, there is
provided a ?rst lateral auxiliary cam block 6, the upper
lay in the same plane had two entrance channels for the 55
plane of which is designated A. It consists essentially'of
needle butts extending into an area where the paths are
an
arm 6a facing the entrance side (to the .left in FIG
aligned and two exit channels for the needle butts extend
URES 2 to 4) and a trapezoidal central part 6b having an
ing away from the path alignment area, each entrance
oblique edge 60 towards the outlet side. Over .the greater
channel together with an exit channel associated with it
partially determining one of two intersecting paths for 60 part of this auxiliary cam block 6 there is disposed a
drive cam block 7 ‘having two projections 7a'and 7b
the needle butts. In this connection spring swing cams
directed towards the entrance side. Projection 7b‘ is
were provided in order to assure the guiding of the nee
bent obliquely upward while projection 7a consists of an
dle butts, through the path alignment area, on the correct
obliquely downward directing lifting surface 7:: and an‘
path, the undesired exit channel being in each case closed
arm 7d which is parallel to the needle bed and lies below
by these came.
65 plane A. The central part 7e of this drive block 7, with
This manner of assuring the correct guiding of the nee
its edge 7]‘ which is inclined towards the outlet side, lies
dle butts in the path alignment area had, as a matter of
in the plane B above the plane A, while the extension
fact, some very substantial disadvantages. Thus the spring
7a extends to below the plane A. The two extensions (in
swing cams had to be at least suf?ciently long for the un
desired exit channel to be completely closed oif. This ab 70 and 7d are tapered towards the inlet, a needle repeller 8
and 9 respectively being arranged in front of the corre
solutely necessary length, however, required a corre
spondingly large closing path of the swing cam in ques
sponding ends thereof.
3,075,373
4
‘On the side of the central cam 'block 7, opposite the
auxiliary cam block 6, there is another auxiliary cam
block 10 which, however, is at right angles to the needle
upper plane B and drop back again only after leaving the
patterning device. The crossing takes place on the length
between the impingement point 12 and the bend 13, in
bed and extends parallel to and at a certain distance
from the facing edge of the center cam block 7, the cam
In order to assure the correct falling back into operating
block part parallel to the direction of displacement being
marked 10a and the part extending parallel to the inclined
edge 7f being marked 1%. The inclined part 10b is cut
out in its lower half and does not extend down to the
plane A. Finally on the frame base plate 3a, a hold
down spring 11 is so arranged that it rests resiliently
on the outlet side of the device against the needle bed 2.
These cam blocks 6, 7 and it) de?ne, as seen from
which region the two paths extend on different planes.
position after leaving the device, there is provided at
the outlet point, the hold-down spring 11 which presses
the needle shanks of the needles proceeding along the
path 4 into their operating position if this has not been
automatically done.
The function of the upwardly pointing extension 7b is
to press down needle butts running on path 5 which, for
one reason or another, lie too high and might, therefore,
below, the two paths 4 and 5, the path 4 being de?ned
strike frontally against the drive cam block 7 to prevent
by the cam block 10 and edge of the extension 7d oppos 15 a possible clamping of the lock. Incidentally, a corre
ing the same, the lifting surface 70 and the central part 7e.
sponding provision with regard to the path 4 is not neces
The path 5 is de?ned by the edge of the auxiliary cam
sary, since here the needle butts are guided upwards by
block 6 facing the auxiliary cam block it} and, towards
the slanting surface 70 so that a needle but rising too
the outlet side, and also by a short length of the auxiliary
much must in any case abut against this slanting surface
cam block 10, namely, between the point of impingement 20 70. The provision of the extension ‘711 is not absolutely
12 and the bend 13, from where it leaves the patterning
necessary, but is a measure of precaution.
device parallel to the direction of displacement below
In this war, it is possible, with absolute certainty to
the cam block part 10b.
assure the crossing of the needle buts, particularly as
The needle butts 15 have a protruding projection 17
these needle butts are always positively guided.
parallel to the needle shank 16. The selection of the two
Instead of needle butts of the type described, jack
planes, A and B, i.e. the position of the auxiliary cam
butts could also be used.
block 6 and of the central cam block '7 is such that the
it is obvious that the arrangements shown in the draw
lower plane A is just below the projection 17 of the
ing are active in only one direction of the slide and must
needles in their working position, while the plane B is
be moved to the ineffective position thereof on the re
above the plane A and further above the corresponding 30 turn stroke thereof. If they are to be rigidly connected
projection 17 as long as the needles remain in their
with a lock, said lock must have two such devices which
normal position within their guides.
can alternately be brought into and out of active position
As already mentioned, with the patterning device
by suitable, known means. The two patterning devices
shown in the drawing, it is intended to obtain the result
are interconnected in a customary manner wherein when
that needles or needle butts which are in the position
one device is in its active position, the other is in its in
18 pass into the position 19 and vice versa, without the
effective position. The positions of the two patternng
needles or needle butts interfering with each other dur
devices are reversed at the end of each stroke of the lock
ing the crossing. For this purpose, the butts of the
‘with each device being active during only one direction
needles which are in position 18, should be guided along
of movement of the lock, as is customary. The shifting
the path~4 and the needles in position 19 should be 40 of the lock back and forth across the needles and the
guided along path 5.
With due consideration of the only possible direction
raising and lowering of the patterning devices are, of
course, accomplished by hand in a hand-knitting appa
of motion (arrow 14), a needle butt comes into position
ratus.
19, substantially unin?uenced by the cam blocks, moves
I claim:
along the projection 6a of the auxiliary cam block 6 into 45
1. In a ‘knitting machine of the type having at least one
the patterning device, follows the bend to the start of the
needle bed with guideways for the needles, needles in the
central part 6b, strikes at 12 against the end of the part
needle bed each having a needle butt presenting a short
Ilia of the cam block 10 which is parallel to the direc
projection parallel to the needle shank; a patterning de
tion of displacement and leaves the device at the posi
vice'movable along the needle bed comprising a frame, a
tion 18 since the inclined part lllb of the cam block it? 50 ?rst cam block in said frame lying in a ?rst plane parallel
does not extend down to the lower plane A. These
to the needle bed lower than the plane of said projections,
needle butts which are guided on the path 5 are accord
said ?rst cam block having an arm with a guiding edge
ingly not lifted and move at all times in the same plane
parallel to the direction of movement of the device and
which corresponds, at least approximately, to plane A.
corresponding to a ?rst position of the needles, said ?rst
Needle butts which enter in position 18 into the pattern 55 cam block having a second guiding edge extending oblique
ing device behave differently. They ?rst of all pass be
ly to said direction of movement, a second cam block
tween the opposite edges of the auxiliary cam block part
disposed in a plane perpendicular to the needle bed, said
Illa and the extension 7d of the central cam block.
second cam block having a ?rst guiding surface parallel
Thereupon, the extensions 17 of said needle butts come
to said direction of movement and corresponding to a
onto the lifting surface 7c and are now moved forward
second position of the needles and a second guiding sur
on said lifting surface and lifted onto the upper plane
face obliquely disposed toward said ?rst cam block, said
B, the projections 17 hooking over the edge of the cen
second surface having its under part terminating at the
tral cam block 7. The further movement takes place
height of said ?rst plane, a third cam block parallel to the
linearly up to the bend 13, from where on they follow
?rst cam block in a plane lying above the plane of said
the oblique cam block parts ltlb and 107‘ until emerging
projections, said third cam block having an arm lying in
from the patterning device, by which oblique cam-block
the plane of the ?rst cam block but with its guiding edge
parts the corresponding needle butts proceeding along
corresponding to the second position of the needles, said
the path 4 are displaced from position 18 into position
arm being connected to the main part of the third carn
19. Upon emergence from the patterning device, the
block by a lifting surface, said main part having a ?rst
needle butts or needles of this path drop from plane B, 70 guiding edge parallel to the ?rst guiding surfaces of the
on which they move during the last part, back into their
second cam block and a second guiding edge parallel to
normal operating position.
the oblique guiding surface of the second cam block, said
It follows from this that on path 5, the needles or
second guiding edge and said second guiding surface
needle butts are left in their normal working plane, while
forming a guiding channel for the needle butts which ends‘
on path 4 they are lifted by'the lifting surface 70 to the 75 at the ?rst needle position.
3,075,373
5
2. In a knitting machine of the type having at least one
needle bed with guideways for the needles, needles in the
needle bed each having a needle butt presenting a short
projection parallel to the needle shank; a patterning de
vice movable along the needle bed comprising a frame, a
first cam block in said frame lying in a ?rst plane parallel
to the needle bed lower than the plane of said projection,
6
ing edge corresponding to the second position of the
needles, said arm being connected to the main part of
the thid cam block by a lifting surface, said main part
having a ?rst guiding edge parallel to the ?rst guiding
surfaces or" the second cam block and a second guiding
edge parallel to the oblique guiding surface of the second
cam block, said second guiding edge and said second
guiding surface forming a guiding channel for the needle
butts which ends at the ?rst needle position, a press-down
parallel to the direction of movement of the device and
corresponding to a ?rst position of the needles, said ?rst 10 spring having an end ?xed to said frame, an oblique part
and one end pressed against the needle bed, said spring
cam block having a second guiding edge extending
pressing the shanks of the needles the projections of which
obliquely to said direction of movement, a second cam
are proceeding along the second guiding edges of the
block disposed in a plane perpendicular to the needle bed,
third
cam and the second oblique surface of the second
said second cam block having a ?rst guiding surface par
allel to said direction of movement and corresponding to 15 cam.
a second position of the needles and a second guiding
References Cited in the ?le of this patent
surface obliquely disposed toward said ?rst cam block,
UNITED STATES PATENTS
said second surface having its under part terminating at
the height of said ?rst plane, a third cam block parallel
1,651,316
Bell et al _____________ __ Nov. 29, 1927
to the ?rst cam block in a plane lying above the plane 20 2,914,933
Schumm _____________ .. Dec. 1, 1959
said ?rst cam block having an arm with a guiding edge
of said projections, said third cam block having an arm
lying in the plane of the ?rst cam block but with its guid
2,922,295
Kochheim ___________ __ Jan. 26, 1960
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