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Патент USA US3031995

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May 1, 1962
F. E. KALNING ETAL
3,031,985
TAPE EDGE SEWING MACHINE
Filed Nov. 17, 1958
2 Sheets-Sheet 1
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WM M
May 1, 1962
F. E. KALNING ET AL
3,031,985
TAPE EDGE SEWING MACHINE
Filed Nov. 17, 1958
2 Sheets-Sheet 2
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United States atent O
3,031,985
Patented May 1, 1962
2
1
of FIG. 2 on an enlarged scale, FIG. 3 illustrating a posi
tion of the elements of the stitch forming and work posi
3,031,985
tioning devices in which the needle is withdrawn from
the work, the vibrating foot is raised, the cooperating feed
dog is lowered, and the work is clamped against the work
TAPE EDGE SEWING MACHINE
Frederick E. Kalning, Quincy, and Howard E. Redman,
Weymouth, Mass, assignors to United Mattress Ma
chinery Co., Inc., Quincy, Mass., a corporation of
table by the presser foot, and FIG. 4 is a view illustrating
another position of said parts in which the presser foot
has been raised, the vibrating foot and the feed dog have
been moved relatively toward one another to ?rmly en
The present invention relates to improvements in a 10 gage and tighten the tape around the core and against the
interposed edges of the mattress cover and to feed the
tape edge sewing machine and more particularly to a
work, and the needle, having completed its stitch forming
beaded edge forming attachment for such a machine,
stroke, is again withdrawn ‘from the work;
‘and to an improved beaded edge construction for a mat
FIG. 5 is a view taken on a line 5-5 of FIG. 4, illus
tress or similar article, and to a method of producing the
Maine
Filed Nov. 17, 1958, Ser. No. 774,238
3 Claims. (Cl. 112-3)
same.
15
It is a principal object of the invention to provide a \
tape edge sewing machine which is well adapted for
trating additionally the tape binder, the core guide, and
the associated core severing knife;
FIG. 6 is a sectional view taken on a line 6—6 of FIG.
2 illustrating particularly the core severing knife and the
tape binder in section;
the panel and border of a mattress casing and a binder
FIG. 7 is a perspective view of the binder illustrating
tape, and simultaneously in the same operation to fold 20
sewing together the ‘adjoining fabric edges comprised by
into the tape a core of ?lling material drawn from a
separate supply.
It is a further object of the invention to provide a tape
particularly the inwardly curved lower tip portions thereof
for guiding the core securely within the folded tape; and
‘FIG. 8 is a perspective view illustrating the manner in
which the tape is reversed and folded over as it passes
fabric edges of a mattress panel and border, a binder tape, 25 through the binder shown in FIG. 7.
The invention is herein disclosed in a preferred form as
and a core of ?lling material drawn from a separate sup~
embodied in ‘a tape edge machine of the general type hav
ply in such a manner that both the core and the edges of
ing a sewing head 20 comprising an over arm 16, an under
the fabric are contained within the heading formed by the
‘arm 18, and a downwardly extending base 22 which is
‘binder tape.
mounted
by means of suitable supporting and guiding de
30
It is still a further object of the invention to provide ‘an
vices not here shown for movement about the edge of the
improved beaded fabric edge of a mattress'or similar ar
rectangular mattress supporting table 24. The stitch form
ticle in which the core is composed of a soft, elastic ma
ing and work positioning devices of the machine include a
terial, as for example, a loosely twisted cotton rope and in
reciprocating needle 28 supported in the sewing head over
which the binder tape is drawn down over the edges of the
edge sewing machine for sewing together the adjacent
fabric material and over the core with su?icient tightness 35 arm 16 for up and down movement and for movement
longitudinally in the line of feed, a cooperating looper 30
carried in the under arm 18 beneath the work. A presser
‘some compression in order to obtain ‘a resilient upstanding
foot 32 carried on a presser foot bar 34 is mounted for a
beaded edge of said mattress.
reciprocating up and down movement in the sewing head
It is a further object of the invention to provide a meth
od of assembling and stitching together the elements of ya 40 over arm 16 toward and away from a throat plate 36 se
cured to the under arm 18. The illustrated machine is
beaded edge of a mattress casing or similar article which
further provided with a four-motion feed dog 38 mounted
comprises the steps of presenting to a stitching mechanism
to place the ?lling material comprising said core under
the abutting fabric edges of a mattress casing, a core of a
soft, resilient ?lling material as, \for example, a loosely
twisted cotton roving, which is drawn from a separate sup—
ply and is positioned to lie snugly against the supported
fabric edges, and positioning ‘a binder tape in a folded
position over said core and over said fabric edges, tension
in the under arm 18 to operate through a slot in the throat
plate 36, and a vibrating foot 40 mounted from the over
arm 16 to engage upper side of the work. The vibrating
foot 40 moves vertically and in the line of feed with the
feed ‘dog 38 to impart a stepped feeding movement to the
work. As best shown in FIGS. 3 and 4, the presser foot
32 is depressed to clamp the work against the throat plate
ing the binder tape against the resilient material forming
said core and edges, and stitching together the binder tape 50 during the retracting movement of the vibrating foot 48,
needle 28 and feed dog 38 rearwardly in the line of feed.
and the intervening fabric edges to form a resilient up- '
This position of the parts is shown speci?cally in FIG. 3.
standing beading edge to said mattress or similar article.
A subsequent position of the parts is shown in FIG. 4 in
With the above and other objects in view as may here
inafter appear the several features of the invention consist 55 which the presser foot 32 is raised, and the vibrating foot
40 and feed dog 38 are moved relatively toward one an
in devices, combinations and arrangement of parts here
other to engage against and to draw adj acent portions of
inafter described and claimed which together with the
the binder tape designated at 44 tightly around the core 46
advantages to be obtained thereby will be readily under
and to support the tape edges ?rmly against the adjacent
stood by one skilled in the art from the following descrip
tion taken in connection with the ‘accompanying drawings 60 panel and border edges of the mattress for the stitch form—
ing operation. The needle 28 has moved downwardly
in which:
through the work into cooperative relation to the looper
FIG. 1 is a somewhat fragmentary view of ‘a mattress ’
edge sewing machine illustrating in a preferred form the
several features of the invention;
30 and has drawn in a new stitch, thus arriving at the posi
tion of these parts shown in FIG. 4.
‘In accordance with the invention the illustrated machine
IFIG. 2 is an enlarged detail plan view taken on a line 65
is provided with an improved work positioning assembly
2-2 of FIG. 1 illustrating one position of the pressure
foot, vibrating foot, tape binder ‘and core guide during the l
operation of assembling and sewing together the panel and
(see FIGS. 2. and 5) which includes a tape binder 48, a
core guide 50, and an adjustably supported top guide 52,
said parts being assembled on a pivoted bracket 54 car
border edges of a mattress or similar article, :a core of soft
resilient material, and a binder tape to form a beaded mat 70 ried on the under arm 18 of the sewing head 20. The core
guide 50 and the tape binder 48 are positioned with rela_
tress edge;
tion to one another to cause the core yarn 46 to be drawn
FIGS. 3 and 4 are sectional views taken on a line 4--4
3,031,985’
3
.
between the projecting lower ends of the binder 48, which;
in reversing and folding the'tape causes the tape to be.
wrapped or folded ?rmly about the core. In order to as-
sist in this operation the lower or tip ends 56, 58 of the;
binder 48 as best shown in FIGS. 5 and 7 are bent in»
wa-rdly toward one another thus causing the core yarn tov
4
positioning devices including a needle, a work support, and
a foot movable toward and away from the work support,
the combination of a tape binder mounted on the machine
in advance of the sewing devices having projecting lower
ends for reversing said binder to position said binder tape
in embracing relation to said cover edges, a core position
be forced upwardly into the fold of the tape. After the
ing guide disposed rearwardly of said tape binder adapted
core yarn and the tape have been combined, as above de-»
dor guiding a core within the folded edge of the binder
tape adjacent said edges, a movable top guide and means
scribed, they are forced yieldably against the edges of the
panel and border of the mattress by means of the guide 52‘. 10 locating said top ‘guide with relation to the sewing and
positioning-devices-to engage the folded edge of the binder
so that these parts will be ?tted snugly together for the:
stitching operation. In the preferred form of the appa-v
ratus shown, the guide 52 is mounted for adjustment with.
vtape and included core against said embraced cover edges.
,2. In a tape edge sewing machine for sewing together
the adjacent panel and border edges, binder tape and core
relation to the binder 48 in order that an adequate amount
of pressure may be applied against the core 46 and tape 15 components of mattresses and similar articles having'sew
44. The position of adjustment depends upon. several
ing, and work positioning devices including a needle, a
factors which include the size of‘ the core used and also‘
.looper, a work support, and a. foot movable toward and
the degree of hardness and elasticity of the core. Where a.
soft ?exible material such as a twisted cotton roving is:
diaving a U-shaped outlet converging diagonally with the
away ‘from'the work support, the combination of a binder
. 'line of feed including projecting ends adapted-to embrace
employed, as in the preferred embodiment of the invene
said panel and border edges to reverse and to position said
tion shown, the guide 52 will be positioned somewhat
closer to the sewing point than would be the case with a,
vvbinder tape over said panel and'border edges, a core posi
tioning guide disposed adjacent ‘said tape ‘binder adapted
hard core, for example, of twisted paper, causing the re
silient core to be compressed against the edges of the panel
for guiding a core within the folded edge of the binder
and border of the mattress cover, and causing the vibrating: 25 tape ajacent said edges, atop guide movably mounted on
foot and vfeed dog to engage and to tighter the wrap of the
said machine between the binder and needle for adjust—
ment transversely ‘of the line of ‘feed to position-the folded
beading tape about the core.
edge of said binder tape and included core against said
The use of :a soft core of resilient material has the ad
enclosed panel and border edges, and ‘means for position
vantage that the work guiding and positioning devices may
be set to secure a tight wrap of the beading tape around 30 ing said ‘top guide to press thefolded edge-of said binder
tape and included core ?rmly against andto position por
the core without risk of pinching the core, or causing the
tape to be drawn-in unevenly or twisted out of position by‘
rtions of said border over the adjacent edges of the panel
the action of the vibrating foot and feed dog.
for passage of the needle through the edge portions of the
‘binder tape and through said adjacent edges of the panel
As best shown in FIG. 2 of the drawing, the core guide:
‘
50 is supported for adjustment toward and away from 35 and border.
the sewing point on a laterally extending plate 60 having
3. In a tape edge sewing machine ‘for sewing together
formed therein two slots 62 which are adapted to receive
the panel and border ‘edges, a binder tape and core com
clamping screws 64 threaded into the bracket 54.
ponents of mattresses and similar articles, the combination
with sewing and work positioning devices including a
The
tape binder 48 is supported ‘for adjustment toward and‘
away ‘from the line of feed in a direction at right angles: 40 looper, a stationary work support, a presser foot movable
toward and away from the work support, and a vibrating
to the direction of adjustment of the core guide 50, to this
foot at one side of the work and a feed dog at the opposite
end being formed with a laterally extending plate 66 which
side of the work movable toward and away from the work
has formed therein a longitudinal slot 68 adapted to re
and in the line of feed, a tape binder mounted on the
ceive two clamping screws 70 threaded into the supporting
bracket 54. The top guide 52 is provided with laterally 45 machine and shaped to reverse the position of and to form
a fold in said binder tape embracing the adjacent panel
extending lug 72 slotted to receive one of the two clamp‘
and border edges, ‘a core positioning guide supported
ing screws 70 so that adjustment of the top guide 52 is
from the machine adjacent said tape binder for guiding a
permitted toward and away from the line of feed relative
core of soft resilient material within the folded edge of
to the tape binder 48.
50 the binder tape and against said edges, and a top guide
Further in accordance with the invention a core severing
movably mounted on the machine between the binder and
device is provided under the control of the operator for
needle for adjustment transversely of the line of feed to
severing the core from the supply at the end of a stitching
compress the folded edge of the binder tape and core
operation about the marginal edge of the mattress. As
best shown in FIGS. 2, 5 and 6, a manually operable knife 55 enclosed therein against the panel and border edges, vfur
ther tightening the folded ‘binder tape around said core
blade 80 is provided mounted in a transverse slot passing
and said edges, whereby the relative gripping movement
through the core guide 50 for severing the core at that
of the vibrating foot and feed dog is operative to engage
point where it passes through the core guide. The blade
portions (of said binder tape closely adjacent said core and
80 is pivotally supported on a removable pivot pin 82
to stress said binder tape tightly around the core and
carried in a block 84 which, together with a cover member
60 against the embraced edge portions of the panel and
86,- provides a support on the bracket 60 to which the
border.
’
tubular core guide 50 is secured, as for example, by solder
ing. A slot transverse to the axis of the tubular core guide
50 isthen cut through the guide 50 and through a portion
References Cited in the ?le of this patent
of the block 84 to receive the knife blade 80. The pivot 65
UNITED STATES PATENTS
pin 82 is inserted through a bore in the block 84 which
1,180,419
Onderdonk ___________ __ Apr. 25, 1916
extends perpendicularly to the slot 88 and on which the
1,257,239
Hughes ______________ __ Feb. 19, 1918
blade 80 is freely supported to turn. A handle 94 attached
1,857,371
Gail ________________ .__ May 10, 1932
to the outer end of the blade 80 provides a convenient
1,892,203
Burton et a1 ___________ __ Dec. 27, 1932
means for operating the knife.
Roberti ______________ __ Feb, 21, ‘1933
The invention having been described what is claimed is: 70 1,898,497
1. In a tape edge sewing machine for sewing together
the adjacent cover edges, binder tape and core components
of mattresses and similar articles having sewing and work
1,947,058
2,682,844
2,834,308
Pittoni _______________ __ Feb. 13, 1934
MacPherson ___________ __ July 6, 1954
Blumenkrantz ________ ._- May 13, 1958
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