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Патент USA US3077078

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Feb. 12, 1963
w. A. SMITH ETAL
3,077,070
IMPROVED BOBBIN MOUNTING ARRANGEMENT
Filed May 12, 1960 ?
2 Sheets-Sheet l
WA
ER A.
INVENTORS
ITH
Wיי#%
ATTORNEY
Feb. 12, 1963
'
w. A. SMITH EI'AL
3,077,070
IMPROVED BOBBIN MOUNTING ARRANGEMENT
Filed May 12, 1960
2 Sheets-Sheet 2
INVENTORS
WALTER A. SMITH
WILLIAM J. SCHRODER
-
_ "w
aw
ATTORNEY
United States ?Patent O "
1
3,b7'1,7
Patented Feb. 12., 1963
2
mounting connection to the bobbin forms an effectively
3,077,070
.
.
.
.
IMPROVED BOBIEIN MOUNTING ARRANGEMENT
Waiter A. Smith, Inman, andWiliiam J. Schroder, Spar
tanburg, S.C., assignors to Deering Milliken Research
Corporation, Spartanburg, S.?., a corporation of Dela?
ware
Filed May 12, 1960, Ser. No. 28,679
3 Claims. (Cl. 57-4130)
serrated resilient surface and takes the form of an an?
nular spiral spring 21 ?tted in an annular groove 23
about the lower end portion of the base adaptor 11.
The spring 21 may be further secured in position in the
groove by a wire band 22 extending through the coils
of the spring 21 and twisted or otherwise connected to
gether at its ends as shown in FIGURES 2 and 3, or by
a spring band likewise extending through the coils of the
This invention relates to a bobbin mounting arrange 10 spiral spring 21. As will be noted from FIGURES 2
ment for mounting and dismounting a bobbin, and par
and 3, ?the spiral spring extends radially outward slightly
ticularly a straight tube type bobbin.
beyond the adjacent periphery of the body portion of the
In the art of winding yarn onto bobbins and removing
base adaptor 11.
the full bobbin packages from the spindle on which they
In order to conform to the conventional key 19 of the
are mounted for winding it is highly desirable that the 15 spindle and whorl, the lower body portion of the base
bobbin be securely held on the Spindle mounting during
adaptor 1'1 has formed therein a complementary slot 25,
rotation of the spindle mounting assembly and bobbin
which also serves, together with the key 19, as a positive
for winding of yarn onto the bobbin, while also permititng
drive connection in the event that the set screw or Screws
ease of removal of the full bobbin package from the
13 should loosen. .
spindle mounting assembly at the conclusion of winding 20 The upper end of the cylindrical bobbin tube B is sup
of the yarn and without damage to the yarn or the yarn
ported by an extension adaptor 27 which has a bore 29
package surface. It ?is therefore highly desirable that the
in its lower end complementary to the upper end of the
spindle mounting arrangement and method of mounting
spindle blade 17. The extension adaptor is preferably
and removal of the bobbin be such that the bobbin will
secured to the spindle blade 17 through the medium of a
be ?rmly held when in mounted position, yet will be 25 set screw or screws 31, although such may be force ?t
readily removable without requiring the grasping of the
or otherwise ?xed thereon if desired.
yarn package per se by the operator even though the
The upper end 27a of the extension adaptor 27 is
yarn package extends substantially to the upper and lower
enlarged and has a generally tapered or frusto-conical
ends of the bobbin. A major feature of this invention is
peripheral con?guration, a midsection of which conforms
the provision of an improved bobbin mounting arrange 30 in circumference to the interior periphery of the lip B1 at
ment which permits the achievement of these desirable
the upper end of the bobbin B when the bobbin is seated
ends.
Still further objects?, features, and. attendant advan
with the peripheral lip disposed slightly below the upper
end surface of the frusto-conical enlarged portion 27a
of the extension adaptor 27. The tapered con?guration
tages will become apparent?to those skilled in the art from
a reading of the following detailed description of a pre 35 of this frusto-conical end portion 27a serves to guide the
ferred physical embodiment constructed according to the
bobbin lip into seated position, and of most importance
invention, and further illustrating the method of mount
to establish the desired seated position level or height of
ing and removal of a bobbin. In the drawings,
the bobbin on the spindle for winding of yarn thereonto
FIGURE 1 is a plan view of a preferred embodiment
and for practice of the method of loosening and removal
according to the invention with a bobbin in place on the 40 of the bobbin as described hereinafter.
spindle mounting assembly.
It will thus be seen that while the spiral spring 21 serves
FIGURE 2 is a section view taken along the line 2?2
as a primary drive for the bobbin B there is also some
of FIGURE 1.
drive torque imparted to the bobbin between the frusto~
FIGURE 3 is a partial view in perspective of the base
conical end adaptor surface and the lip B1 of the bobbin
45 at the upper end thereof.
portion of the embodiment of FIGURES 1 and 2.
FIGURE 4 is a fragmentary section view similar to
The bobbin is placed onto the spindle mounting assem
FIGURE 2 and illustrating the initial step in the removal
bly by sliding such downwardly over and onto the spindle
of a full bobbin package according to the method of the
mounting assembly. The arrangement is so constructed
invention.
as to permit an improved and highly useful method of
FIGURE 5 is a further view similar to FIGURE 4 and 50 loosening and removal of the full bobbin package from
illustrating a further sequential portion of the removal
the mounting assembly without the necessity of the opera
operation.
tor grasping the periphery of the full bobbin package,
FIGURE 6 is a partial perspective view of the arrange
even though the bobbin package extends to a position ad
ment with the bobbin package being partially broken away
jacent both the upper and lower ends of the bobbin
and showing the ?nal step in the removal of the bobbin 55 tube B. To this end, the tapered or upper frusto-conical
package from the spindle mounting assembly, wherein
end portion 27a of the extension adaptor 27 has formed
the full bobbin package is raised up to a point where the
therein one or more slots 33, which preferably have a
operator can and is grasping the upper interior and ex
concavely curved base surface 33a extending at an angle
terior of the bobbin above the upper end of the yarn
to the axis of rotation of the spindle mounting assembly.
package per se in order to permit full removal of the
The lower end of these slots 33:: extends beneath the
bobbin package from the spindle mounting assembly.
normal seated position of the lower portion of the lip B,
Referring now to the ?gures of the drawing, in the
as shown in FIGURE 2, in order to permit a hand held
preferred embodiment as illustrated in the drawings, a
hook H to be inserted therebetween as shown in FIGURE
lower end bobbin adaptor 11 is mounted as by one or
4. The hook is preferably of substantially thin cross-sec
more set screws 13 on a conventional down-twister take 65 tion at its end portion H2 and round at this end in order
up spindle arrangement including a whorl 15, spindle
to prevent puncturing of the bobbin tube B during the
blade 17 and key 19. The lower end adaptor 11 is pref
dismounting operation. By exerting an upward leverage
erably of conical or frusto-conical con?guration in order
force on the handle portion H1 of the hook the operator
to permit ease of mounting of a hollow straight cylindrical
may thus effect a substantial loosening and raising of the
bobbin tube B thereon, and is further so constructed as 70 bobbin and yarn package thereon as shown in FIGURES
to engage the lower end portion of the bobbin interior in
5 and 6 to a position (FIGURE 6) where the operator
driving relation. In the preferred embodiment this drive
may insert his ?nger within the inner periphery of the
3,077,070
lip B1 and grasp the package between his ?nger and
A
con?guration with at least one transverse slot formed
thumb in order to remove the bobbin and package from
the bobbin mounting assembly. It will thus be seen that
the curved portion H2 of the hook serves in conjunction
at the tapered peripheral surface thereof, said slot having
with the base surface 33a of the slot 33 as a sliding
fulcrum for a modi?ed second-order lever action.
bobbin having an annular inwardly extending lip formed
at one end thereof, said bobbin being seated over and
Upon reaching the position as shown in FEGURE 6 the
on said spiral spring at the opposite end thereof and in
a concave bottom surface inclined with respect to the
axis of rotation of said whorl and spindle blade, at
operator may either remove the freed full bobbin from the
seated engagement with said outer end adaptor at said one
bobbin mounting assembly by lifting the bobbin with the
hook H alone, and subsequently assisting this action with
end thereof, said lip being disposed between the ends of
said slot.
the other free hand by grasping the upper or lower exposed
2. Apparatus according to claim 1 wherein said bobbin
end of the bobbin and completing the removal and dis
is a hollow straight cylindrical paper tube.
3. Apparatus comprising a whorl, a spindle blade con
posal of the full bobbin, or he may remove the hook H
and thereupon readily remove the full bobbin with its
nected to and rotatable with said whorl, a tapered base
yarn package thereon from the spindle mounting assem 15 end adaptor secured to said spindle blade adjacent said
bly by manually raising the bobbin and bobbin package
whorl and having resilient means thereon for resilient
gripping engagement with the base interior end of a
with one hand grasping the upper lip B1 of the bobbin,
and optionally also lifting and guiding the lower exposed
hollow bobbin, an outer end adaptor having an axial bore
end of the bobbin with the other hand as may be neces
therein and ?tting over the free outer end of said spindle
sary or desired. The bobbin mounting assembly is there 20 blade, means securing said outer end adaptor to said
upon in readiness for the mounting of a new empty bob
spindle blade, said outer end adaptor having a frusto
bin B thereon and the winding of a yarn package onto
conical tapered con?guration with at least one transverse
the new bobbin.
slot formed at the tapered peripheral surface thereof,
While the invention has been described with respect to
said slot having a concave bottom surface inclined with
a single preferred embodiment constructed according
respect to the axis of rotation of said whorl and spindle
blade, a bobbin having an annular inwardly extending lip
thereto, it will be apparent to those skilled in the art that
various modi?cations may be made without departing
formed at one end thereof, said bobbin being seated over
from the scope and spirit of the invention. Accordingly,
and on said resilient means at the opposite end thereof
it is to be understood that the invention is not to be
and in seated engagement With said outer end adaptor
limited by the speci?c illustration of the invention as dis 30 at said one end thereof, said lip being disposed between
the ends of said slot.
closed and described herein, but only by the scope of
the appended claims.
That which is claimed is:
1. Apparatus comprising a whorl, a spindle blade con
nected to and rotatable with said whorl, a tapered base 35
end adaptor secured to said spindle adjacent said whorl
and having an annular external groove formed in the
periphery thereof, a substantial annularly extending spiral
spring disposed in said groove and extending radially out
beyond the peripheral portion of said base end adaptor, 40
References Cited in the ?le of this patent
UNITED STATES PATENTS
2,042,968
Siegenthaler ___________ __ June 2, 1936
2,417,525
2,471,816
Smith _______________ __ Mar. 18, 1947
Hamrn _______________ __ May 31, 1949
2,639,576
2,746,689
Bay _________________ __ May 26, 1953
Berkepeis ____________ __ May 22, 1956
818,647
152,212
Great Britain _________ __ Aug. 19, 1959
Switzerland ___________ __ Apr. 1, 1932
?an outer end adaptor having an axial bore therein and
?tting over the free outer end of said spindle blade, means
securing said outer end adaptor to said spindle blade,
said outer end adaptor having a frusto-conical tapered
FOREIGN PATENTS
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