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Патент USA US3084653

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April 9, 1963
o. R. CAYLOR
3,084,643
FRINGE FORMING SEWING MACHINE
Filed July 28, 1960
4 Sheets-Sheet 1
INVENTOR
OLLIE
BY
‘ %
R. CAYLOR
ATTORNEY I
April 9, 1963
3,084,643
v0. R. CAYLOR
FRINGE FORMING SEWING MACHINE
Filed July 28. 1960
4 Sheets-Sheet 2
INVENTOR
OLLIE
BY %74
R. CAY LOR
ATTORNEY
April 9, 1963
3,084,643
o. R. CAYLOR
FRINGE FORMING smwmc MACHINE
Filed July 28, 1960
4 Sheets-Sheet 3
,
INVENTOR
OLLIE R. QAYLOR
WM
ATTORNEY
April 9, 1963
3,084,643
o. R. CAYLOR
FRINGE FORMING SEWING MACHINE
4 Sheets-She'et 4
Filed July 28, 1960
INVENTOR
OLLIE R. CAYLOR
BY
W 7?
ATTORNEY
United States Patent 0
3,684,643
()lhe_R. Caylor, McDonald, Tenn, assignor to .I. M.
Feighery Company, Dalton, Ga, a corporation of
Georgia
asters
2
1
_
A
Patented Apr. 9, 1963
FIGURE 5 is an enlarged fragmentary sectional view
on line 5—-5 of FIGURE 2, showing the needles and as
sociated elements in position where a stitching operation
FRINGE FURMIWG SEWING MACHINE
5
Filed July 28, 1960, Ser. No. 45,922
7 Claims. (Cl. Iii-64)
is being performed at the completion of one loop of
fringe; and
FIGURE 6 is a similar view showing the positions the
parts will occupy during ‘the formation of the next suc-.
cessive frange loop‘.
Referring to FIGURES 1 and 2, numeral 10 designates
This invention relates to a fringe forming sewing ma
chine. This application is a continuation-in-part of my
0 the bed of a conventional industrial sewing machine from
one end of which projects upwardly a standard 11 pro
copending application, Serial No. 837,175, ?led August
vided with an arm 12 the free end of which carries con
31, 1959, now abandoned.
ventional sewing elements as referred to below. A suit
An important object of the invention is to provide a
able motor (not shown) drives a shaft 14 for operating
novel mechanism for use in conjunction with a sewing
the conventional parts of the sewing machine, which need
15
machine for automatically forming and stitching fring~
not be referred to in detail. A sprocket 15v on the shaft
ing, and wherein the mechanism performs its operations
14 drives a chain 16 passing around a sprocket 17 mounted
much more rapidly than with conventional machines.
on a shaft 18. A parallel shaft 19‘ is driven from the
_A further object is to provide such a machine wherein
shaft 18 through meshing gears 2d and 21, mounted
respectively on the shafts Id and ~19‘. The right-hand
ends of the shafts 18- and 19‘ (FIGURES l and 2) are
journaled in a bearing 22 carried by a plate 23 ?xed
air pressure is employed for blowing the thread, yarn, or
the like across the vertical plane or planes of the stitch—
ing and to so coordinate the feeding of the thread or the
like with the operation of the sewing machine as to
as at 24 to the body of the machine. The plate 23 also
carries studs 26 supporting an outer guard plate 27. j
form successive uniform loops of fringing.
A further object is to provide such a machine having
means for feeding the thread or yarn ahead of the ma
25
chine needle and to provide in conjunction therewith
means for uniformly limiting the rate at which the thread
The left-hand ends of the shafts 18 and 19‘ project
through a bearing 30 carried by a relatively large tri
angular plate 31 (FIGURE 3) secured as at 32 to the free
end of the amn 12. The shafts 18 and 19, as described
or yarn can be fed to the machine so as to form successive
below, drive the mechanism forming the principal part
uniform fringe loops.
30 of the present invention.
A further object is to provide an ‘open-ended thread
The sewing machine embodies conventional stitching
guide operating in conjunction with the needle or needles
elements such as ‘a vertically movable presser bar 35 hav—
of the machine and to feed thread into one end of said
guide while discharging it from the other end for move
ment across the plane of stitching, and to provide an air
pressure nozzle in alinemen't with the open end of the
thread guide to project the thread therethrough and to
carry it across the line of stitching to form the fringe
loops.
A further object is to provide in combination with the
mechanism just described a positive feed means from
which the thread moves to the thread guide, such feed
means being driven by and in synchronized relation with
the usual sewing machine operations to feed the thread
ing a presser foot 36 at the bottom thereof and urged
downwardly by the usual spring 37 visible through a
slot 38 formed in the plate 31 and in the ‘adjacent end of
the arm 12. The presser foot 36 is secured to the presser
bar 35 by the usual clamp 40 and is notched at one side
as at 41 (FIGURES 5 and 6).
The machine further comprises a conventional verti
cally recipnocable needle bar 44 carrying a clamp 45
from which project downwardly two needles 46 and 47,
these needles being arranged in a horizontal plane as
‘shown in FIGURES 5 and 6‘ and being the conventional
needles of an industrial type sewing machine movable
‘at a uniform rate.
downwardly through the notch 41 of the presser foot
A further object is to provide such an apparatus wherein 45 36 to perform the usual stitching operations. The usual
the thread feeding mans is in the form of a friction drum
feeding mechanism, comprising a serrated plate 48 (FIG
driven from the sewing machine and which drum is re
URE 3) partakes of the usual movement to feed the
placeable with drums of larger or smaller size to vary
material rearwardly in proper timed relation to the opera
the peripheral speed thereof and thus vary the length of
tion of the needles 46 and 47. These elements are con
the fringing.
ventional and form no part per se of the present inven
A further object is to provide novel means for moving
tion and are driven in the usual manner from the: shaft
the thread guide and nozzle upwardly and downwardly
14- 'by mechanism housed in the bed It), standard 11 and
with the presser bar as ‘the latter moves upwardly during
operation of the feeding mechanism of the machine and
downwardly during each stitching operation, and to pro
vide novel means for swinging the thread guide and
nozzle forwardly and rearwardly in a direction parallel
to the line of stitching to bring the fringe loops into posi
tion to be stitched, after which the guide and nozzle
move forwardly for the formation of the next loop of 60
fringe.
Other objects and advantages of the invention will be
come apparent during ‘the course of the following de
arm 12. The needles are supplied with threads 49 from
any suitable source through the usual guiding and ten
sioning means.
The mechanism forming the principal subject matter
of the present invention is shown in FIGURES 3 and 4
and is mounted at the left-hand end of the machine as
viewed in FIGURES l and 2, the thread guiding and air
jet means being shown in detail in FIGURES 5 and 6.
Referring particularly to FIGURES 2 and 3, the numeral
‘55 designates a lever pivoted as at 56 to one end of a
link 57 the other end of which is ?xed by a clamp screw
58 to a stud 59 projecting through the slot 38 (FIGURE
In the drawings I have shown one embodiment of the 65 3) and ?xed to the presser bar 35. The link or arm 57
invention. In this showing:
is thus ?xed to the presser bar 35 and supports the lever
FIGURE 1 is a plan view of the apparatus;
55. The lever 55 is provided at its lower end with a gen
FIGURE 2 is a front elevation of the same;
erally tubular thread guide 62 open at both ends for the
FIGURE 3 is an end elevation of the left-hand side
passage therethrough of thread or yarn to be referred
of the machine as viewed in FIGURE 2;
70 to Later, from which are formed the fringe loops described
FIGURE 4 is a fragmentary sectional view on line
below.
4-4 of FIGURE 1;
scription.
aosgess
3
g
.
.
.
-
Ontwardly or to the left of the plate 31, the shaft 18
4
the point in the operation of the machine illustrated in
carries a wheel 63 carrying eccentrically thereof a stud
64 having Iball jointed connect-ion as at 65 with a link 66.
The other end of this link has ball jointed connection as
at 67 (FIGURES 1 and 3) with a stud 68 carried by the
FIGURE 5 the lower end of the lever 55 starts to move
toward the left. The needle 46 will have been withdrawn
from the strip ‘108 after having passed downwardly
through the inner fringe loop 110‘ (FIGURE 6) at the
point 111. With the needles elevated to the position
that rotation of the shaft 18 reciprocates the link 66 to
shown in FIGURE 2 and with the lower end of the lever
transmit rocking movement to the lever 55, such move
swinging to the left toward the position shown in FIG
ment being synchronized with the ‘stitching operation as
URE 6, the blowing of the jet of air through the guide
described below.
19 62 will blow the thread 80 across the planes of the needles,
Air under pressure is delivered to the thread guide 62,
thus starting the formation of the next fringe loop, one
through the open end thereof remote from the needles
of which is shown in FIGURE ‘6 and indicated by the
through the medium of a nozzle '76 in axial alinement
numeral 112. In the meantime, the needle 47 will have
with the thread guide 62. The other end of this nozzle
been forming a line of stitching 113. Since the needle
is formed as a vertical tubular member '71 ?xed to the 15 47 is set rearwardly of the needle 46, it is the latter needle
lever 55' by an arm 72. The upper end of the tubular
which pins down the inner end of a straight fringe loop
member 71 is connected to the lower end of a ?exible
end 167 when the needle 46 descends. The lower end of
upper end of the lever 55. It Will be apparent, therefore,
hose 73 connected to one side of the plate 31 through a
the lever arm 55 is at its forward limit in FIGURE 6 and
starts to move rearwardly relative to the needle 46 and
?tting 74, said ?tting at the other side of the plate 31
being connected to one end of a hose 75 leading to a suit
able source of air pressure. Throughout the sewing
eration, air is delivered in the present embodiment of
invention with a constant force through the nozzle
Means is provided for supplying thread or yarn to
op
the
'70.
the
20 passes such needle just before the latter is ready again to
guide 62 to be projected therethrough by the pressure of 25
descend to fasten another completed fringe loop in posi
tion.
Operation
The conventional parts of the sewing machine operate
in the usual manner. The needles 46 ‘and 47 are recipro
cated by the usual means provided for this purpose and
at each elevation of the needles the conventional feed
This thread is delivered at a ?xed rate according to the
mechanism 48 moves upwardly into engagement with the
speed of operation of the machine by contact with a
roughened ‘drum 81, the thread being maintained in fn'c 30 cloth or other material and then rearwardly to feed the
material to a position for the completion of the next stitch
tional engagement with the drum by an idler wheel 82.
ing operation. The lever ‘55 has two points thenealong
From the drum 81 to the guide 62 the thread extends
?xed with respect to other elements of the machine,
downwardly substantially in a straight line and at an
namely at the pivot 56 and at the ball joint 67. The lever
angle as shown in FIGURE 3, and the plate 31 may be
provided with a similarly inclined guard 83 projecting 35 is supported by the ?xed link or arm 57 and its vertical
air from. the nozzle 70.
Such a thread or the like, ex
tending to the guide 62, is indicated by the numeral 80.
laterally from the plate and having an upper end 84
position may be adjusted by loosening the clamping screw
projecting rearwardly beneath the meeting points of the
58 and swinging the opposite end of the arm 57 up
wardly or downwardly, and then tightening the screw 58.
The oscillation of the lower end of the lever to swing
in FIGURE 1 and, accordingly, is driven constantly by 40 it between the positions shown in LFIGURES 5 and 6 is
effected by means of the eccentric stud 64, rotatable about
the source of power which operates the sewing machine.
the axis of and driven by the shaft 18. The oscillatory
The wheel 82 is rotatable on a stub shaft 88 carried
movement of the lever 55, the rotation of the feed drum
‘by an arm 89 ?xed to a rock shaft 99 journaled in suitable
81 and the operation of the sewing elements of the ma
bearing means 91 carried by the plate 31. At the side of
chine obviously are synchronized with respect to each
the plate 31 opposite the arm 89, the shaft 90 is provided
with a collar 92 having a depending arm 93‘ to the lower 45 other.
end of which is connected one end of a spring 94. The
The wheel or drum ‘81 is rotated by the shaft 19 and
its circumference predetermines the rate of movement of
other end of this spring is connected as at 95 to the plate
the thread 86 from the drum 81 to the guide 62. It will
31. The spring §4, therefore, tends to rock the shaft
become apparent that by using a drum ‘81 of greater diam
90 in a clockwise direction as viewed in FIGURE 4, thus
50
biasing the wheel 82 toward the wheel 81 to maintain the
eter, longer fringe loops will be formed, while shorter
thread 80 ‘in ?rm contact with the wheel or drum 81. It
loops may be made by utilizing a ‘drum ‘81 of smaller
will be apparent that the drum 81 predetermines the Illl?Xl
diameter. The thread ‘80 initially may be fed past the
wheels 81 and 32. The guard 83 is omitted in FIGURES
1 and 2. The wheel 81 is carried by the shaft 19 as shown
mum speed of movement of the thread 80 toward the
drum '81 by depressing the ‘arm 96 to rock the arm 89
guide 62, the air pressure from the nozzle 70 being enabled
and thus move the Wheel 82 away from the drum 81. A
to force the thread through the guide 62 at the predeter 55 su?icient length of the thread will be pulled between the
mined maximum speed set by the drum 81. The shaft
wheel '82 and drum 81 so that the end of the thread
90 is provided with an upwardly and forwardly extending
may be extended through the thread guide 62. The arm
arm 96 operable for swinging the wheel 82 away from
96 is then released and the thread will be held in ?rm
the drum 81.
engagement with the drum 81.
A vertical plate 98 is supported rearwardly of the
Since the lever 55 is supported by the presser bar
machine by spaced studs 99 secured to a bar 100 carried
through the link or arm 57, it is always movable ver
by the plate 31. The plate 98 is provided with a grommet
tically therewith. The nozzle 7 0, being (fixed with respect
161 through which the thread 86‘ is fed from a suitable
to the lower end of the lever 55, will have its discharge
source of supply.
opening always in axial ‘alinement with the thread guide
65
The formation of the fringe is shown in FIGURES 5
‘62. The pressure of the air carries the thread through the
and 6. The lower end of the lever 55 is at its rearmost
thread guide and the speed of movement of the thread,
limit of movement in FIGURE 5, with the opening in the
regardless of the air pressure, will be limited by the linear
thread guide 62 arranged slightly rearwardly of the needle
speed of the thread moving to the thread guide, as de
46 so that one line of stitching 105 passes over one paral
termined by rotation of the wheel ‘81. A stitch having
70
lel side 107 of a newly completed loop, the thread form
been made at the point 111 in FIGURE 6, the lower end
ing the line of stitching referred to thus securing the upper
of the lever ‘55 will swing toward its forward limit of
portion of the loop end 1107 to a backing strip 168 to
movement while blowing the thread through the guide
which the fringing ordinarily is stitched. The ‘fringe thus
62, a partially completed fringe loop: 112 being formed
completed is provided with an outer loop 1619. Beyond 75 at
the point in the operation of the mechanism shown in
3,084,643
FIGURE 6. With the needles elevated, the strip 108
will be moved rearwardly by the feed mechanism 48 of
the sewing machine, and the lower end of the lever 55
will move rearwardly as the lever is rocked about the
the strand of thread projecting from the guide and a posi
tion forwardly of the needle in which position the thread
is blown to form a fringe loop.
3. A device according to claim 2 wherein said means
for supplying thread to said thread guide comprises a
The lower end of the lever Cl feed roller, means for rotating said roller, and an idler
pivot 56 by the link 66.
reaches the position shown in FIGURE 5 just to the rear
roller biased toward said feed roller to maintain the thread
of the vertical axis of the needle 46 as the latter descends
in engagement therewith, the thread passing between said
to pin down the portion 167 of the now completed loop
rollers and then to said thread guide.
behind the needle 46 in FIGURE 5. With the formation
4. For use with a sewing machine having a ‘vertically
of such loop completed, the needle 46 is elevated and the 10 reciprocable needle and a presser bar having ‘a presser ‘foot
portion of the thread ‘80 now moved to the left of the
at the lower end thereof, a fringe forming dew'ce com
transverse plane of the needle 46 will be free to move
prising a tubular thread feeding guide having both ends
downwardly as viewed in FIGURE 6 for the formation
open and having one end adjacent the needle, a ?uid pres
of the next successive loop of fringe.
sure nozzle for blowing a thread through said guide,
It will be apparent, therefore, that the fringe is formed
means ‘for supplying thread to said guide to be blown
as rapidly as the two lines of stitching 105 and 113
can be carried out through the normal operations of the
conventional parts of the sewing machine. The operation
through said guide, said guide and said nozzle being ?xed
in axial alinement, a lever having a lower end to which
said thread guide is ?xed, a pivot support for said lever
intermediate the ends thereof and adapted to be ?xed to
with present mechanisms utilized for forming fringing. 20 said pressure bar, and means connected to the upper end
All of the operations are fully automatic. With the parts
of said lever for rocking it back and forth to move said
of the sewing machine ready for operation with the needles
thread guide between a position just rearwardly of the
threaded, etc., it is merely necessary to start the thread
needle for the stitching of the strand of thread projecting
tit) through the thread guide whereupon the stitching
25 from the guide and a position forwardly of the needle
operation is started and the successive loops are rapidly
in which position the thread is blown to form a fringe loop.
formed. Since the speed of rotation of the roughened
5. In combination with a sewing machine having a
therefore is much more rapid than can be performed
drum 31 is synchronized with the operation of the ma
chine, it will be apparent that successive fringe loops of
identical length and spacing will be formed. Control de
vices forming no part of the present mechanism obviously
will be used. For example, any desired preferably sole
noid operated valve used in the air pressure line 75 would
be opened whenever the motor for the sewing machine
is started.
vertically reciprocable needle, a presser bar having a
presser foot at the lower end thereof, a feed mechanism
including a plate movable under the presser foot to feed
material rearwardly upon each upward movement of the
needle, and power means comprising a drive shaft for
operating said needle, said presser bar and said feed
mechanism; a fringe forming device comprising a tubular
In such case, it merely is necessary to ‘start 35 thread feeding guide having both ends open ‘and having
one end adjacent said needle, a fluid pressure nozzle for
blowing a thread through said guide, means driven from
air from the source will be out 01f. As stated, the par
said drive shaft for supplying thread to said guide at a
ticular means for controlling the air forms no part of
predetermined linear speed, said ‘guide and said nozzle
the motor of the machine, complete the fringing opera—
tion and then stop the motor, whereupon the supply of
the present invention. It also will be apparent that the
being ?xed in axial alinement for the blowing of the
thread through said guide at a speed predetermined by
ticular type of sewing machine.
operation of said thread supplying means, and means for
It is to be understood that the form of the invention
moving said guide back and forth between a position just
shown and described is to be taken as a preferred example
rearwardly of the needle for the stitching of the strand
of the same and that various changes in the shape, size,
of thread projecting from the thread guide and a position
45
and arrangement of the parts may be made as ‘do not
forwardly of the needle in which position the thread will
present invention is not limited in its use to any par
depart from the spirit of the invention or the scope of
the appended claims.
be blown to form a fringe loop.
6. In combination with a sewing machine having a
vertically reciprocable needle, a presser bar having a press
I claim:
1. vFor use with a sewing machine having a vertically
50 er foot at the lower end thereof, a feed mechanism in
reciprocable needle and a presser bar having a presser
cluding a plate movable under the pressure foot to feed
foot at the lower end thereof, a fringe forming device
material rearwardly upon each upward movement of the
comprising a tubular thread feeding guide having both
needle, and power means comprising a drive shaft for
ends open and having one end adjacent the needle, a ?uid
operating said needle, said presser bar and said feed mech
pressure nozzle for blowing a thread through said guide, 55 anism; a fringe forming device comprising a tubular
means for supplying thread to said guide to be blown
thread feeding guide having both ends open and having
through said ‘guide, said guide and said nozzle being ?xed
one end adjacent said needle, a ?uid pressure nozzle for
in axial alinement, and means for moving said guide back
blowing a thread through said guide, means driven from
and forth between a position just rearwardly of the needle
said drive shaft for supplying thread to said guide at a
for the stitching of the strand of thread projecting from 60 predetermined linear speed, said guide and said nozzle
said thread guide and a position forwardly of the needle
being ?xed in axial alinement for the blowing of thread
in which position the thread will be blown to form a fringe
through said guide at a speed predetermined by operation
of said thread supplying means, a lever having a lower
loop.
'2. For use with a sewing machine having a vertically
end to which said thread guide is ?xed, and means driven
reciprocable needle and a presser bar having a presser 65 from said drive shaft for rocking said lever back and forth
foot at the lower end thereof, a fringe forming device
in synchronism with operation of said needle to move
said thread guide between a position just rearwardly of
said needle whereby downward movement of the latter
ends open and having one end adjacent the needle, a ?uid
stitches the strand of thread projecting from the guide
pressure nozzle for blowing a thread through said guide,
means for supplying thread to said guide to be blown 70 and a position forwardly of the needle in which position
the thread will be blown to form a fringe loop.
through said guide, said guide and said nozzle being ?xed
7. The combination de?ned in claim‘ 6 provided with
in axial alinement, a lever having a lower end to which
pivot
supporting means for said lever intermediate the
said thread guide is ?xed, and means ‘for rocking said lever
ends thereof, said pivot supporting means being fixed to
back and forth to move said thread guide between a
position just rearwardly of the needle for the stitching of 75 said presser bar, said means for supplying thread to said
comprising a tubular thread feeding guide having both
?
3,084,643
thread guide comprising a feed roller having mechanical
connection with said drive shaft to be rotated at a pre
determined speed, and an idler roller biased toward said
feed roller to maintain the thread in engagement there
with, the thread passing between said rollers and then to 5
Merwitz ______________ __ June 5, 1934
2,606,514
2,824,531
2,876,720
Williams ______________ _ Aug. 12, 1952
Breul et a1 ____________ __ Feb. 25, 1958
Sokoloff _____________ __ \Mar. 16, 1959
462,615
Italy ________________ __ Mar‘. 29, 1951
said thread guide.
References Cited in the ?le of this patent
UNITED STATES PATENTS
146,970
W'right _______________ __ Ian. 27, 1874 10
8»
1,961,505
FOREIGN PATENTS
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