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Патент USA US3066520

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Dec. 4, 1962
K. KOHL
-
3,066,510
GUIDE-NEEDLE FOR WARP KNITTING MACHINES
Filed April 21, 1959
I N V EN TOR
KARL xo/?.
Attorneys
United States Patent 0-”
1
3,066,510
Patented Dec. 4, 1962
2
3,066,510
GUIDE-NEEDLE FOR WARP KNITTING
MACHINES
Karl Kohl, Hainstadt (Main), Germany, assignor to Karl
Mayer, Hessische Wirkmaschinenfabrik G.m.b.H.,
Obertshausenynear Offenbach (Main), Germany
Filed Apr. 21, 1959, Ser. No. 807,856
Claims priority, application Germany Apr. 22, 1958
4 Claims. (CI. 66-86)
The present invention relates to knitting machines.
More in particular, the present invention relates to warp
knitting machines, and more particularly still to a new
obliquely and at an angle which equals that of the oblique
position of the needle. This arrangement allows the
guide needles to be used for any kind of material as they
can be positioned at the smallest necessary distance from
one another.
According to a preferred embodiment of the inven
tion the lowermost end portion of the needle below the
needle eye is again bent with respect to the bent portion
with the needle eye, so as to be positioned parallel with
10 regard to the needle shaft. Similarly, it is furthermore
possible to provide for a needle eye whose con?ning walls
also extend parallel relative to the needle shaft.
The invention will be better understood upon the fol
and useful guide-needle mounting for warp knitting ma
lowing description of the accompanying drawings, where
chines.
15 1n:
The gnide-needles for warp knitting machines known
FIGURE 1 is a front view, partly in section, of an em
in the art have a straight con?guration and are soldered
bodiment of the guide needle of the present invention,
in a lead support vertically with respect to the direction of
whose lowermost portion below the bent portion with
the warp knitting operation.
the needle eye is again bent so as to be positioned paral
These known, straight guideneedles as Well as their 20 lel relative to the needle shaft;
vertical mounting in the support lead are the source of
FIGURE 2 is a front view, partly in section, of another
grave and considerable disadvantages. It has been found
embodiment of the guide needle of the invention, in which
that, for example, in the processing of rubber threads,
the walls de?ning the needle eye extend parallel with
napped yarns, and the like, the unavoidable turning and
respect to the needle shaft;
bending of the threads upon conveying them through 25 FIGURE 3 is a front view of the guide-needle mounting
the needle eye of the guide-needles produce a considerable
of the present invention and shows the guide needles
stress and strain of the threads. Frequently the threads
being mounted obliquely with respect to the direction
of the warp-knitting operation.
are worn and even damaged. Particularly within the
zone of their outer ?laments, the wrappings of rubber
Referring now to the drawing somewhat more in detail,
threads are destroyed and napped yarns are frequently 30 the lower end of the guide-needle 1 shown in FIGURE 1
broken.
is bent twice in the area with the needle eye 2 so that the
It has already been proposed in the art to avoid these
thread 3 can pass through the eye 2 substantially with
disadvantages by providing for a bead-like notch in the
out being turned and bent. The edges 4 and 5 of the
needle. However, all that is attained by this arrange
needle eye therefore do not have a damaging effect on the
ment is that the damaging effect of the upper edge of the 35 thread. The needle eye 2 is provided in the oblique por~
eye portion of the needle upon introducing the thread
tion 1a. The end below the eye 2 is bent in such a way
into the eye is reduced to a certain extent.
that it is located parallel relative to the shaft of the
needle 1.
There still
remain the damaging effects produced by turning the
thread and by leading the thread out of the needle eye.
The threads can be further protected by the guide-needle
Furthermore, it is not feasible to provide for such a 40 shown in FIGURE 2 where the central axis 7 of the needle
bead-like notch for lack of space.
eye 2a extends in a direction substantially parallel rela
tive to the needle shaft.
With the foregoing in mind, it is an object of the
present invention to provide a guide-needle for warp
The oblique mounting of the guide-needle is illustrated
knitting machines which produces a minimum of strain
in FIGURE 3. The needle lead supports 81 have oblique
and wear of the threads passed through the needle eye of
edges 9 and bores 8a for mounting the needle lead sup
the guide-needle.
ports by screw or bolt means in a known manner onto the
It is another object of the present invention to provide
movable guide bar of a warp knitting machine. The
a guide-needle for warp knitting machines which safely
straight guide~needles 10 are soldered in these lead sup
guides the threads and eliminates any danger of breaking
ports. The angle of their inclined positions is equal to
the threads as a result of their passing through the needle 50 that of the edges 9. This is another way of preventing
eye of the guide-needle.
breaking or tearing of the threads when passing through
It is still another object of the present invention to
the needle eyes.
provide a guide-needle for warp knitting machines 'in which
It will be understood that this invention is susceptible
the sharp turning and bending of the thread when passing
to modi?cation in order to adapt it to different usages
into and out of the needle eye of the guide-needle is 55 and conditions and, accordingly, it is desired to com
avoided.
prehend such modi?cations within this invention as may
It is a further object of the present invention to pro—
fall within the scope of the appended claims.
vide for a guide~needle mounting which greatly reduces
What I claim is:
the stress and wear of the threads and prevents their
1. A thread guide for mounting onto the movable
breaking and tearing as a consequence of their passing 60 guide bar of a warp knitting machine and comprising a
through the needle eye of the guide-needle.
plurality of needle lead supports for side-by-side attach
These objects are achieved and the disadvantages of
ment on a movable guide bar with said supports having
the known guide-needles are avoided by the guide-needle
parallel upper and lower edges, the contiguous sides of
and/or its mounting in the lead support of the present
said supports being oblique at the same angle with respect
invention.
65 to said parallel edges, a plurality of spaced parallel guide
According to the invention the guide-needle is either
needles projecting from the lower edges of said supports
obliquely mounted in the lead support or it is obliquely
for delivering a plurality of threads in side-by-side rela
bent within the range of the needle eye, with respect to
tionship to the knitting elements of a warp knitting ma
the direction of the warp knitting operation.
chine, said guide needles extending from said lower edges
When using the oblique mounting of the guide-needle
70 at an oblique angle with respect to said lower edges, there
of the invention, it will also be advantageous to shape
by preventing breaking of the threads.
the two extreme edges of the needle lead support also
2. A thread guide for mounting onto the movable guide
3,066,510
3
movable guide bar with said supports having parallel
upper and lower edges, the contiguous sides of said sup
ports being oblique at the same angle with respect to
.
said parallel edges, a plurality of spaced parallel guide
needles projecting from the lower edges of said supports
tionship to the knitting elements of a warp knitting ma
10
at the same angle at which said contiguous sides of said
supports are oblique to said upper and lower edges of said
supports, thereby preventing breaking of the threads.
3. A thread guide as claimed in claim 2 with said guide
needles forming a straight line where they project from 15
said lower edges of said supports.
4. In a warp knitting machine, a guide needle mount
ing as claimed in claim 2, wherein the connection be
tween said guide needles and said lead supports is a
solder connection.
2,014,529
Kinsella et a1. ________ __ Sept. 17,
2,254,201
Anderson ____________ __ Sept. 2,
2,293,123
2,429,231
Lambach ____________ ~. Oct. 21,
2,480,231
for delivering a plurality of threads in side-by-side rela
chine, said guide needles extending from said lower edges
43.
References Cited in the ?le of this patent
UNITED STATES PATENTS
bar of a warp knitting machine and comprising a plurality
of needle lead supports for side-by~side attachment on a
2,562,939
2,680,959
2,690,066
2,694,302
2,822,679
Erdinan et a1. ________ __ Aug. 18,
Eshleman ____________ __ Aug. 30,
Noe ________________ __ Aug. 7,
Walford _____________ __ June 15,
Schoenster ___________ __ Sept. 28,
Weinberg ___________ __ Nov. 16,
Schoenster ___________ __ Feb. 11,
1935
1941
1942
1947
1949
1951
1954
1954
1954
1958
FOREIGN PATENTS
550,254
Belgium _____________ __ Aug. 31,
OTHER REFERENCES
“Technologie Der Kettenwerkerei,” 1942.
1956
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