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Патент USA US3019758

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Feb. 6, 1962
J. L. CARD
APPARATUS FOR SIMULTANEOUSLY FORMING
FILE STITCHING AND ROWS OF LOOP FILE
Filed Sept. 19, 1957
3,019,748
s OF CUT
HI
Sh
s-Sheet 1
INVENTOR:
Joseph Lewis Card,
BY
ATTORNEY
J. L. CARD
Feb. 6, 1962A
'
PPARATUS FOR SIMULTANEOUSLY FORM
PILE STITCHING AND ROWS 0F‘ LOOP
Filed Sept. 19, 1957
3,019,748
ROWS OF CUT
E STITCHING
2 5heats-Sheet 2
NTOI‘L
Joseph Lewis Card,
BY
ATTORNEY
'
ice
9
Patented Eels.
, 1%62
1
of cut pile and rows of loop pile for selected needles and
having yarn feed control means for selectively forming
3 019,748
APPARATUS FOR SIP/,IULTANEUUSLY F?RMlNG
loop pile higher than the cut pile and loop pile lower
RQWS 6F CUT FILE STETCEWG AND ROWS ()F
L00? PHJE STZTCHEIG
than the cut pile.
Further objects and advantages of the invention will
be apparent from the following description taken in con
junction with the drawings, wherein:
FIG. 1 is a perspective view of the invention;
Joseph Lewis tCard, Chattanooga, Tenn, assignor to
Singer-Cobble, Inc, Chattanooga, Team, a corpora
tion of Delaware
Filed Sept. 15%, 1957, Ser. No. 684,836
5 (Zlaims. (Cl. 112-79)
This invention relates to a multiple needle tufting ma
chine and more particularly to a tufting machine for
FIG. 2 is a section taken along the lines 2—2 of FIG.
10 1 disclosing the cut pile hook and the loop pile hook in
simultaneously forming rows of cut pile stitching and
rows of loop pile stitching.
Heretofore tufting machines have been designed for
forming either fabric of loop pile or fabric of cut pile.
Because the inherent characteristics of a loop pile ma
chine are entirely different, and in many instances oppo
site, from the characteristics or’ a cut pile machine, at
tempts to combine the characterisics of the two machines
to form both loop pile and cut pile in a single machine
have not been successful. In a conventional loop pile
tufting machine, the loop pile hooks are pointed in the
their forward operational positions;
FIG. 3 is a view similar to FIG». 2 in which the cut
pile hook and the loop pile hook are in their withdrawn
operational positions;
FIG. 4 is a perspective view of one type of loop strip
ping ?nger associated with a loop hook;
FIG. 5 is a perspective view of a modi?ed form of
loop stripping ?nger associated with a loop hook;
FIG. 6 discloses a modi?ed form of loop hook; and
FIG. 7 is an enlarged view showing the operation of
the loop pile hook and loop stripping ?nger in FIG. 3.
Referring now to the drawings in more detail.
FIG.
1 discloses the operating parts of the invention, with
direction of fabric feed to permit the loops to feed off the
parts broken away, as they would appear in a conven
hooks, whereas in a conventional cut pile tufting machine,
tional multiple needle cut pile tufting machine. A needle
carrier it? adapted to be vertically reciprocated by means,
not shown, support a plurality of needles, preferably ar
the loop hooks are pointed in a direction opposite to the
fabric feed in order to hold the loops until they are cut
by a cooperating cutting mechanism. Moreover, the
timing of the reciprocating movements of a loop pile
ranged in a front row of cut pile needles: 11 and a back
proved highly unsatisfactory.
a pair of rows in order to permit a more narrow needle
row of loop pile needles 12. As disclosed in FIGS. 1, 2,
hook and the timing of a cut pile hook are just the op 30 and 3, the cut pile needles 11 are staggered with respect
posite since a loop pile hook must be moving backward
to the loop pile needles 12 in order to form alternating
to engage a loop formed by a descending needle at the
rows of cut pile and loop pile stitching. it is to be
same moment that a cut pile hook must be moving for
understood that the number of cut pile needles 11 does
ward for the same purpose. Attempts have been made
not have to equal the number of loop pile needles 12,
to design a machine that would form both cut pile and
nor do the needles have to be alternately staggered, but
loop pile by having two sets of needles and two inde
‘the spacing and relation of the cut pile needles ll to the
pendently driven and independently timed sets of hooks,
loop pile needles 1?; may be selective to produce the de
one for out pile and one for loop pile, spaced to stagger
sired corresponding relationship of the rows of cut pile
the rows of cut pile tufts between the rows of loop pile
stitching to the rows of loop pile stitching in the base or
tufts, and vice versa. Such a combination has the same 40 backing fabric 13. It is also conceivable that the cut pile
effect as providing a cut pile tufting machine and a sepa
needles ll and loop pile needles 12 may be employed
rate loop pile tufting machine through both of which the
in a single row alternating with each other or in any
base fabric fed progressively. Such attempts have
other desired arrangement. The needles are disposed in
It is therefore an object of this invention to overcome 45 gauge.
the disadvantages enumerated by providing a tufting ma
chine which will form rows of cut pile and rows of loop
pile without employing dual mechanisms.
Another object of this invention is to provide a tufting
machine for simultaneously forming cut pile and loop
pile in which the loop pile mechanism is of novel con
struction.
Another object of this invention is to provide a tufting
machine for forming cut pile and loop pile in which the
out pile hooks and loop pile hooks are mounted in a 55
single hook bar.
A further object of this invention is to provide a tuft
ing machine for forming cut pile and loop pile in which
the cut pile hooks and loop pile hooks are pointed in the
same direction, opposite to the direction of fabric feed.
Another object of this invention is to provide a tufting
FEGS. l, 2 and 3 also disclose the loop pile needles 12
set lower than the cut pile needles Ill. in order to nor
mally form loop pile of greater height in the base fabric
13 than the cut pile. it is also to be understood that the
needles l1 and 12 may be set at equal elevations in order
to form cut pile and loop pile of equal height.
A throat plate M of conventional construction and
?xed to the machine, not shown, is provided with ?ngers
15 which extend between the needles Ill and 12 to sup
port the base fabric 13 as it is fed through the machine.
Mounted below the throat plate 14 is a hook shaft 16
and a knife shaft 37 of similar construction to those em~
ployed in a conventional cut pile tufting machine, both
of the shafts being adapted for limited rotary reciproca
tory motion in a. manner Well known to the art. Fixedly
mounted to the hook shaft to is a hook bar 18 provided
machine for forming cut pile and loop pile in which the
with equally spaced vertical slots 19. in a preferred
cut pile mechanism and loop pile mechanism have the
form of the invention as disclosed in FIGS. 1, 2 and 3, a
same timing and reciprocate in unison.
conventional cut pile hook 2t) and a loop pile hook 2.1
Another object of this invention is to provide a mul 65 of novel construction are both inserted in each hook bar
tiple needle tufting machine for simultaneously forming
rows of cut pile stitching and rows of loop pile stitching
with selected needles and having yarn feed control means
slot 19. In the preferred arrangement, the spacing of the
hook slots 1'9 are approximately equal to either the gauge
of the needles ll or the gauge of needles
and twice
for forming loop pile of various heights according to a
the gauge between the needle 11 and the needle 12. ‘
predetermined pattern.
70
As best disclosed in FIGS. 4 and 5, the loop pile hook
A further object of this invention is to provide a mul
21 comprises a substantially vertical plate~like shank 22
tiple needle tufting machine to simultaneously form rows
having a throat portion 23 bent at substantially right
sniaras
angles to the shank along the joint 24. The bill 25 of
the hook is preferably integral with ‘and extends beyond
needle cut pile tufting machine, and are synchronously
driven so that the cut pile hooks 2t} and the loop pile
the end of the throat portion 23 and is bent down at its
point 26. The point 26 may be either arcuate (FIGS. 4
and 5) or at an angle (FIG. 6) with respect to the remain
ing portion of the bill 25, so long as the point 26 is bent
hooks 21 or 21’ are rocked forward when the needles 11
sul'liciently to retain a loop of yarn 27 formed thereon
by a needle 12;, and so long as the bent point 26 is not so
pronounced as to prevent the loop 27 from being removed
by the loop stripping mechanism 28.
The loop stripping mechanism 28, disclosed in P168.
1, 2, 3, 4- and 7, comprises ‘a loop stripping plate 29 ?xed
and 12 are in their lowermost position to form loops
thereby, and so that all the loop pile hooks and cut pile
hooks are rocked backwards to their withdrawn positions
when the needles 11 and 12 are in their elevated positions
while the knife shaft 17 rocks the knife 34 upward to
simultaneously cut the loops formed by the cut pile hooks
it? to form cut pile thereby. As the machine is operat
ing, the fabric 13 is continuously fed across the throat
to a portion of the machine, not shown, and adapted to
support a loop stripping linger 3!} for each loop hook 21.
plate 14- from the front to the rear of the machine as indi
cated by the arrows in FIGS. 2 and 3.
It is also contemplated that a pattern control means,
steel, engaging and biased against the bottom of the throat
portion 23 or bill 25 at all times. Thus, as the loop pile
hook 2i is rocked backward to its extreme withdrawn
disclosed in FIGS. 2 and 3, and employing the pattern con
trol means disclosed in the ‘above applications, cut pile
may be formed at a substantially uniform height, while
The loop stripping plate 29 is ?xed in such a position that 15 such as that disclosed in the co-pending applications, Serial
Number 327,807, now abandoned, and 630,343, now Pat
each loop stripping ?nger 3%‘ is adapted to engage a loop
ent No. 2,935,037, granted May 3, 1960, of Joseph L. Card
27 formed on a loop pile hook 21 as the loop pile hook
may be associated with this invention in order to form
is rocked backward by the hook shaft 16 from its forward
high
low loops in the loop pile stitching to form pre
position disclosed in FIG. 2 to its withdrawn position dis
determined designs in the completed tufted fabric. By
closed in FIG. 3, to thereby remove the loop 27 from the
setting the needles 1]. and 12 and the cut pile hooks 26
hook 211. As disclosed in H68. 1, 2 ‘and 3, the loop strip
and the loop pile hooks ill substantially at the elevations
ping ?nger 35} comprises a strip of metal, such as spring
position disclosed in PEG. 3, a stationary loop stripping
linger 36 engages and slides along the bottom of the bill
25 to strip the loop 27 from the point 26.
A modi?ed loop stripping ?nger 3ll, disclosed in FIG. 5,
is so constructed that the loop hook 21 is adapted to
rock backward beneath the ?nger 31 as the ?nger engages
and strips the loop 27 from the point 26. The ?nger 31
comprises a substantially ?at elongated plate having a
down-turned side ?ange 32, which is adapted to slide .
against or in close proximity to the side of the bill 25
as the hook 21 is rocked backward. The ?nger 31 may
or may not engage any portion of the loop hook 21 at
any time, so long as the ?nger engages and completely
strips the loop 27 from the hook 21. Once the loop 27
is stripped from the hook 2d, the loop will be carried by
the fabric 13 over the top of the loop stripping ?nger 30
or 3'}. ‘and the loop stripping plate 29.
he knife shaft 17 supports a knife block 33 which
carries a knife 34 adapted to associate with each cut pile
hook 2b to cut loops formed thereon and create cut pile
in a manner Well known to the art.
Both the cut pile hooks 2% and the loop pile hooks 21
may be vertically adjustable relative to each other Within
each hook slot 19. The loop pile hooks 21, as disclosed
in the drawings, are set lower than the cut pile hooks 20
by an amount corresponding to the dilference in heights
of the needles 11 and £2, and the points 26 of the loop
pile books 21 are staggered with respect to the cut pile
hook points in the same relation as the needles 12- are
staggered with respect to the needles 11. However, it is
to be understood that the difference in height between the
cut pile hooks 2a and the loop pile hooks 21 does not
nece sarily have to be equal to the dilference in the height
loop pile both higher and lower than the cut pile may be
simultaneously formed according to a predetermined pat
tern. Moreover, if the cut pile stitching alternates with
the loop pile stitching, the high loops would overlay ad
jacent cut pile tufts, while the cut pile tufts would overlay
adjacent low loops, to form contrasting designs of cut
pile and loop pile in a single ‘fabric.
It will be apparent to those skilled in the art that vari
ons changes may be made in the invention, without de
parting from the spirit and scope thereof, and therefore
the invention is not limited by that which is shown in
the drawings and described in the speci?cation, but only
as indicated in the appended claims.
What is claimed is:
1. In a tufting machine, a pair of spaced needles for
inserting pile yarns into a base fabric, means for recipro—
eating said needles, means for supporting said base fabric
beneath said needles, a hook bar mounted for reciproca
tion beneath said needles, a single slot in said hook bar
beneath said needles, a cut pile hook adapted to cooper
ate with one of said needles and a loop pile hook adapted
to cooperate with the other of said needles, each hook
having a shank and a bill, the shanks of both hooks being
received in said single slot with said bills pointing in the
same direction, knife means cooperating with one side
of said cut pile hook for cutting loops formed thereon, the
bill of said loop pile hook being laterally spaced from
the other side of said out pile hook the same distance as
said needles, means for reciprocating said hook bar to
alternately move said bills across their respective needles,
in the needles’ lowermost position, to form loops in said
pile yarns and to move said bills away from their cor
responding needles, and loop stripping means cooperating
with said loop pile hook for engaging a loop formed there
between the needles l1 ‘and the needles 12, so long as 60 on and removing said loop from the free end of said
each loop pile hook 21 is in a position to form a loop
hook bill as said bill reciprocates away from its corre
27 with its corresponding needle 12.
It is also to be understood that each cut pile hook 20
and each loop pile hook 21 may be inserted in separate
individual slots 19, and for this purpose, the shank 22',
the bill 25’ ‘and point 26’ of a modi?ed form of loop pile
sponding needle.
2. The invention according to claim 1 in which the
shank and the bill of said cut pile hook are coplanar
and the bill of said loop pile hook is offset from its shank
in the direction away from the cut pile hook.
hook. 221’ may be formed in the same unbent vertical
3. In a tufting machine, a pair of spaced needles for
plane as substantially disclosed in PEG. 6. Fig. 6 also
inserting
pile yarns into a base fabric, means for recipro
shows a modi?ed form of the point 26' being bent down
at an angle to the bill 25’ rather than having an arcuate 70 eating said needles, means for supporting said base fabric
beneath said needles, a hook bar mounted for recipro
shape.
cation beneath said needles, a single slot formed in said
The means for reciprocating the needle carrier 10‘, the
hook bar beneath said needles, a looper mechanism com
fabric feed mechanism, and the means for driving the
prising shank means and a cut pile bill and a loop pile
hook shaft 16 and knife shaft 17 have not been disclosed,
as they are of conventional construction for a multiple 75 bill mounted in spaced relation on said shank means, said
5
3,019,748
bills pointing in the same direction, said out pile bill being
adapted to cooperate With one of said needles and said
loop pile bill being adapted to cooperate with the other
of said needles, said shank means being received in said
slot for reciprocation with said hook ‘oar, knife means co
operating with one side of said cut pile bill for cutting
6
bills are offset from each other by substantially the same
amount and in the same direction as the offset spacing
between said needles.
References Cited in the ?le of this patent
UNITED STATES PATENTS
loops formed thereon, said loop pile bill being laterally
spaced from the other side of said cut pile bill the same
distance as said needles, means for reciprocating said
1,855,175
1,907,292
Braudes _____________ __ Apr. 26, 1932
Gladish ‘_ ____________ __ May 2, 1933
hook bar to alternately move said bills across their cor
2,410,764
2,411,267
2,482,683
2,675,771
2,768,593
2,782,741
Uihlein _____________ __ Nov. 5,
Harnricl; _____________ __ Nov. 19,
Moore ______________ __ Sept. 20,
Peters _______________ __ Apr. 20,
Lombard ____________ __ Oct. 30,
Smith _______________ __ Feb. 26,
2,811,244
MacCaiTray __________ __ Oct. 29,
responding needles, in the needles’ lowermost position, to 10
form loops in the pile yarns carried by said needles and
to Withdraw said bills from said needles, and loop strip
ping means eooperating with said loop pile bill for engag
ing a loop formed thereon and removing said loop from 15
the free end of said loop pile bill as said bill Withdraws
from its corresponding needle.
4-. The invention according to claim 3 in which one
of said needles occupies an elevated position and the
other of said needles occupies a lower position, and one
of said bills is elevated with respect to the other of said
bills substantially the same distance as the di?erence in
elevation of said needles.
5. The invention according to claim 3 in which said
needles are offset from each other in the direction of the 25
reciprocation of said hook bar and the free ends of said
1946
1946
1949
1954
1956
1957
1957
1958
1958
1958
1959
1959
2,827,866
Penman _____________ __ Mar. 25,
2,836,1342,842,080
Harrison _____________ __ May 27,
Hoeselbarth ___________ __ July 8,
2,878,763
2,879,728
2,879,729
Jackson _____________ __ Mar. 24,
McCutchen __________ __ Mar. 31,
McCutchen __________ _._ Mar. 31, 1959
FOREIGN PATENTS
635,817
Great Britain _________ __ Apr. 19, 1950
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