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Патент USA US3092350

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June 4, 1963
l. U. JJJJJ ON
3,092,342
RADIALLY EXPANSIBLE HOLDER FOR TUBULAR PACKAGES
IVAN ULYSSES JACKSON
BY gékk “.TW
TTORNEY
June 4, 1963
l. u. JACKSON
3,092,342
RADIALLY EXPANSIBLE HOLDER FOR TUBULAR PACKAGES
2 Sheets-Sheet 2
Filed March 13, 1961
28
F|G.3
I9
32
34
INVENTOR
IVAN U LYSSES JACKSON
GO
‘a: mag“
ATTORNEY
United States Patent 6
3,932,342
Patented June 4, 1963
351
2
3,092,342
chuck has a tubular package 4 telescoped thereon and is
driven by its rolling engagement with drive roll 1. In
and the like into packages and more particularly to an
ing assemblies 7 and 8 are located within the passage
this manner, a ?lamentary structure 5 is Wound onto each
RADIALLY EXPANSIBLE HOLDER FOR
TUBULAR PACKAGES
package 4.
Ivan Ulysses Jackson, Petersburg, Va., assignor to E. I. 5
The present invention is directed primarily to the chuck
du Pont de Nemours and Company, Wilmington, DeL,
construction best shown in FIGURE 3. In the embodi
a corporation of Delaware
ment chosen for illustration, support for the various oper
Filed Mar. 13, 1961, Ser. No. 95,151
ating parts of chuck 3 is furnished by a spindle 6, having
5 Claims. (Cl. 242F462)
extremities A and B, which is ?xedly attached at extremity
This invention relates to the winding of strands, threads 10 B to, and extends laterally from, the swing arm 2. Bear
improved apparatus for holding a tubular yarn package
While a ?lament is wound thereon at high speeds.
in the textile industry, yarns, threads and other ?li
mentary structures are often Wound on tubular packages
which are removably supported on rotatable chucks. In
order to achieve high winding speeds and for other pur
poses, it has been found practicable to rotate the chuck
core assembly by rolling contact with a drive roll. To hold
between the tubular housing 9 and the spindle 6. Bear
ing assembly 7 is retained against spindle shoulder 14} and
housing shoulder 11 by snap rings 12 and 13 while bear
ing assembly 8 is retained against spindle shoulder 14 and
15
snap ring 15 by fastening the spindle 6 to the outer sur
face of bearing 8 separated from the fastening means by
snap ring 16. A circumferential guard 17 is provided
near extremity B on spindle ‘6.
Spindle 6 carries a tubular housing 9 rotatably en
the package in place on the chuck during the winding 20
gaging bearing assemblies 7, 8. Two expander sleeves
operation, it has been common practice to fabricate the
18 and E19, each provided with tapered peripheral surfaces,
chucks with spring-loaded members extending outwardly
are slideably mounted on tubular housing 9. A retainer
therefrom. However, such chucks have the disadvantage
20 is mounted against tubular housing shoulder 21 and
that they do not hold the tubular yarn package ?rmly at
a retainer 22 is mounted on tubular housing 9 near ex
high speeds or, if the spring-loading is suf?cient for this
tremity
A and is held ?lmly in place by lock nut assembly
purpose, it becomes di?’icult to position and remove the
23.
package in an e?icient manner. To overcome this di?i
Expander sleeves 18 and 19 are provided with a
plurality of receptacles adapted to receive coiled springs
24 and 25 positioned in compressed engagement between
which expand under the action of centrifugal force as the
the
expander sleeves and the receptacles. An expansion
speed increases to hold the yarn package ?rmly in place. 30
cylinder 26 provided with tapered extremities adapted to
Although such chucks are satisfactory for winding at low
engage the corresponding tapered peripheral surfaces of
or moderate speeds, when winding at high speeds, as is
expander sleeves ‘l8 and ‘19* is ?tted over tubular housing
greatly desired, the chuck tends to become slightly ec
9. The expansion cylinder 26 is provided with circum
centric and this is particularly undesirable when operating
culty, chucks have been designed with spring members
[with surface contacting drive rollers.
It is an object of the present invention to provide an
improved chuck for the winding of strands on cores at
35
ferential shoulders 27, 28 projecting from its inner surface
which slideably engage holders 29 and 30 mounted on
tubular housing 9. This permits sliding radial movement
of the expansion cylinder but arrests axial movement.
Flanged collars 31, 32 project from the inner surface of
of the winding operation and quickly and easily removed 40 the expansion cylinder 26 to engage corresponding ?anged
collars 33, 34 mounted on tubular housing 9. The flanges
high speeds. Another object is to provide a chuck upon
which the core may be easily positioned at the beginning
after the package is wound. A further object is to pro
vide a chuck which holds the core securely at high speeds.
A still further object is to provide a chuck which remains
provide a locking or holding means preventing radial
movement of the expansion cylinder 26 away from the
concentric at high operating speeds. Additional objects
longitudinal axis of the chuck beyond the point where the
chuck comprising a spindle, a tubular housing rotatably
circumferential stop 35 extending out radially is provided
will become apparent as the invention is hereinafter de 45 ?anges engage each other. The ?anged collars 33, 34 also
act as a stop to expander sleeves 18 and 19 by preventing
scribed in detail.
axial movement one sleeve toward the other beyond the
The objects of this invention are accomplished by pro
point where the sleeves engage the ?anged collars. A
viding a chuck adapted to receive a tubular package, said
telescoped on said spindle, a retainer mounted on said
on the tubular housing 9 to abut one end of a tubular
package 4 telescoped on chuck 3 and prevent further axial
movement of the package in the direction from extremity
each slideably mounted on the tubular housing between
A to extremity B.
said retainers and each provided with a peripheral surface
Optionally, a plurality of elongated key springs 36 are
tapered toward the center of the longitudinal axis of said
chuck, spring means positioned in compressed engage 55 detachably mounted in holders 29 and 30 and project
through slots 37 (best shown in FIGURE 2). When this
ment between at least one of the expander sleeves and
option is used, the key springs 36 also engage the inner
the said retainers, and a tubular expansion member mov
surface of tubular package 4 (not shown in FIGURE 2)
ably mounted over said housing, said tubular expansion
which is telescoped over the chuck.
member being provided with tapered extremities adapted
In actual operation, a tubular package 4 is telescoped
to slideably engage the corresponding peripheral surface
on
chuck 3 to abut circumferential stop 35. In so do
of the said expander sleeves and be held in position
ing, the expansion cylinder 26 is depressed against ex
thereby.
pander sleeves 18‘, 19. The tapered extremities of the
FIGURE 1 is a fragmentary end view of a traverse
housing at each extremity thereof, two expander sleeves
expansion cylinder 26 which slideably engage the tapered
winding apparatus incorporating the chuck construction of
peripheral surface of expander sleeves 18, 19 force each
the present invention.
65 of the slideably mounted expander sleeves to move toward
FIGURE 2 is a cut-away perspective view of the wind
the nearest chuck extremity, and further compress coiled
ing chuck of this invention.
springs 24, 25- against retainers 20, 22. The complement
FIGURE 3 is a longitudinal section of the winding
ary force exerted by the compressed coiled springs in the
chuck of FIGURE 2.
The traverse Winding apparatus shown in FIGURE 1 70 expander sleeves 18, 19 when such a tubular package is
includes, as components thereof, a drive roll ‘1 and a
swing arm 2 on which a chuck 3 is freely rotatable. The
telescoped on the chuck 3, then causes the expander
sleeves to move along the longitudinal axis of the chuck
3,092,342
3
toward one another.
Movement of the expander sleeves ’
18-, 19 toward one another along the longitudinal axis of
the chuck causes expansion cylinder 26, slideably mounted
at its tapered extremities on the tapered peripheral surface
of the expander blocks 18,, 19, to move radially away
from the axis of the chuck and into tight engagement with
the tubular package 4. When the chuck is not in rotation,
4
be made in the disclosed windup chuck without departing
from the spirit of the present invention which is, therefore,
intended to be limited only by the scope of the appended
claims.
Many other equivalent modi?cations will be apparent
to those skilled in the art from a reading of the above
without a departure from the inventive concept.
centrifugal force is absent and only the force exerted by V
What is claimed is:
the coiled springs 24, 25 is present; thus the tubular
1. A chuck adapted to receive a tubular package, said
package may be easily removed from the chuck.
10 chuck comprising a spindle, a tubular housing rotatably
When the illustrated apparatus is placed in operation,
telescoped on said spindle, two bearing assemblies
there is a rolling contact between drive roll 1 and the
mounted between the said housing and the said spindle at
chucks 3‘ or the packages 4 thereon. At low speeds the
each extremity thereof, retainers mounted on the said
uniform forces exerted by the coiled springs 24,25 on
housing at each- extremity thereof, two expander sleeves
the expander sleeves 18, 19' causes the expansion cylinder
each slideably mounted on the said tubular housing and
to ?rmly and uniformly engage a tubular package, as de
each
provided with a peripheral surface tapered toward
scribed in the preceding paragraph, and to initiate and
the
center
of the longitudinal axis of said chuck, a plu
preserve concentricity with regard to ‘ the relationship
rality of coiled springs positioned in compressed engage
between chuck 3 and a tubular package or packages tele
between said expander sleeves and said retainers,
scoped thereon. With the chuck body rotating at high 20 ment
an
expansion
cylinder moveably telescoped on said ex
speeds, the outer surface of the expansion cylinder 26 is
held uniformly in ‘tight frictional gripping engagement
pander sleeves, said expansion cylinder being provided
with tapered extremities adapted for slideable engage
with the inner surface of the tubular package 4 by the
ment with the corresponding peripheral surface of the
centrifugal forces acting on the expansion cylinder 26
and by the forces exerted by the coiled springs 24, 25. 25 said cylinder sleeves and to be held in position thereby,
a circumferential shoulder projecting from the said ex
Any, tendency of the tubular package to migrate on the
pansion cylinder intermediate its ends toward the longi
chuck is precluded by the gripping action of the outer
tudinal axis of said chuck, a pair of holders mounted on
surface of the expansion cylinder. Due to the particular
said housing, said holders being adapted for slideable en
construction and design of the chuck described herein, a
uniform gripping force is exerted on the tubular package 307 gagement with said shoulders to permit radial movement
and to arrest axial movement of the said expansion cyl
and concentricity of assembly is thus maintained at both
low and high speed operation.
.
-
Optionally, longitudinal key springs 36 may be attached
inder, a pair of ?anged collars projecting radially from
the said expansion cylinder toward the said axis and a
corresponding pair of ?anged collars mounted on said
housing 9. Preferably these longitudinal springs are used 35 housing and adapted for engagement with its correspond
ing ?anged collar member mounted on said cylinder to
when low speed winding operation is undertaken since
restrict radial movement of the said expansion cylinder.
the centrifugal force presented at high speed operation is
2. The chuck of claim 1 wherein a plurality of longi
greater than that present at low speed operation. The
tudinal key springs are detachably mounted on said tu
centrifugal force present at low speed operation may not
bular housing and wherein a plurality of longitudinal
be sui?ciently strong to overcome forces which might
slots are provided in said expansion cylinder for receiv
develop locally and which might be of su?icient magnitude
ing‘and
allowing free radial passage therethrough to said
to overcome the forces exerted by the coiled springs 24,
key springs.
25. The longitudinal key springs 36 extend radially
3. An improved chuck device adapted to receive a tu
through slots 37 provided in expansion cylinder 26 to
bular object, said chuck device comprising a spindle, a
grip. the surface of the tubular package 4. Of course, the
tubular housing rotatably mounted on the said spindle,
expansion cylinder also grips the inner surface of the
bearing means operatively positioned between said spin
tubular package when the longitudinal springs are em
dle and said tubular housing, retainer elements mounted
ployed; however, the longitudinal springs exert a greater
on the said tubular housing at each extremity thereof,
degree of force against the inner wall of the package.
two expander sleeves each provided with a peripheral
Should forces develop during low speed operation, when
surface tapered toward the center of the device and the
little centrifugal force is present, which are su?ircient to
longitudinal axis of said chuck and each slideably
overcome the forces exerted on the expansion cylinder by
mounted on the tubular housing between said retainer
the coiled springs 24, 25, the longitudinal key springs 36
elements, spring means positioned in compressed engage
vact to hold the package in place.
ment between said expander sleeves and said retainer ele
' Although coiled springs may be inserted between both
expander sleeves 1S and 19 and retainers 2i} and 22, it ' ments, and a radially expandable tubular member tele
scoped over said expander sleeves and provided with
is preferable in actual operation that only the expander
tapered extremities adapted for slideable engagement
sleeve and retainer located near extremity A be spring
with and radial positioning by said expander sleeves, said
loaded.
'
The expander sleeves may be made of metal, plastic or 60 radially expandable tubular member and said tubular
to the housing holders 29, 30 or elsewhere on the tubular
reinforced resins but are preferably constructed from the
latter material, a reinforced phenol-formaldehyde‘resin
such as Micarta being most suitable. The tubular housing
is preferably‘ made of steel and the expansion cylinder
may be easily constructed from an essentially rigid metal
65
with tempered aluminum being preferred.
VThe chuck of this invention is primarily adapted for’
use as a spinning chuck in a textile windup operation
wherein'a tubular yarn package is telescoped on the chuck
housing being further provided with corresponding radial
abutment means operatively engaged to substantially pre
vent relative axial movement between said tubular hous
ing and said tubular member [while permitting radial
movement of the said radially expandable tubular
member.
7.
4. The chuck device of claim ‘73 wherein the corre
sponding radial abutment means of the radially expand
able tubular member comprises two circumferential
shoulders and wherein the corresponding radial abutment
and a ?lament or yarn is wound up upon the package;
70 means of the tubular housing comprises two'circumfer
however, its vuse is not, intended to necessarily be so limited 7
ential shoulders in engagement therewith.
'
since its utility can vbe evidenced in similar winding opera
tions.
The chuck construction can be modi?ed to ac
5. A chuck adapted to receive a tubular package, said
chuck comprising a spindle, a tubular housing rotatably
commodate any practicable number of packages. It is
telescoped
the said spindle, bearing surfaces between
also apparent that ‘other changes and modi?cations may 75 said spindleonand
said housing, retainers mounted on the
3,092,342
from the said expansion cylinder toward the longitudinal
said housing at each extremity thereof, two expander
axis, and two circumferential holders projecting outward
ly mounted on said tubular housing for slideable radial
sleeves each provided with a peripheral surface tapered
engagement with said circumferential shoulders to sub
toward the center of the longitudinall axis of said chuck
and
each
slideably
mounted
on
the
tubular
housing
be
tween said retainers, spring means positioned in com- 5 stantially prevent axial movement and to permit radial
movement of the said expansion cylinder.
pressed engagement between the expander sleeves and
References Cited in the ?le of this patent
the said retainers, an expansion cylinder moveably tele
UNITED STATES PATENTS
scoped over said expander sleeves, said expansion cyl
inder being provided with tapered extremities adapted for
slideable engagement with the corresponding peripheral 10
2,562,658
surface of said expander sleeves and to be held in posi-
2,705,111
Bonebrake ___________ __ July 31, 1951
Bruestle ____________ __ Mar. 29, 1955
Heizer ______________ __ Sept. 6, 1955
tion thereby, said expansion cylinder being further pro-
2,717 ,128
Petersen et al __________ __ Feb. 7, 1956
vided with circumferential shoulders projecting inwardly
2,733,874
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