US3454235A

US3454235A - Tapered wall tube

Info

Publication number: US3454235A
Application number: US587169A
Authority: US
Inventors: Richard C Hurley
Original assignee: Fusion Rubbermaid BV
Current assignee: Fusion Rubbermaid BV; Rubbermaid Applied Products Inc
Priority date: 1966-10-17
Filing date: 1966-10-17
Publication date: 1969-07-08
Anticipated expiration: 1986-07-08

Description

R. c. HURLEY TAPERED WALL TUBE July 8, 1969 Filed Oct. 17, 1966 I Sheet of2 v FIG.|

" RICHARD c. HURLEY ATTORNEY FIG.

Jul 8, 1969 3o FIG. 5 j z m U W W United States Patent 3,454,235 TAPERED WALL TUBE Richard C. Hurley, Charlotte, N.C., assignor to Fusion Rubbermaid Corporation, Statesville, N.C., a corporation of North Carolina Filed Oct. 17, 1966, Ser. No. 587,169

Int. Cl. B65h 75/10 U.S. Cl. 242-4621 Claims ABSTRACT OF THE DISCLOSURE This invention relates to yarn carriers, and more particularly, to a yarn carrier having a uniform outside diameter about which yarn may be wound, and a tapered bore or passageway defining an inside diameter of varying dimensions from one end of the carrier to the other.

In the yarn winding art, generally two types of mandrel assemblies are used in winding yarn onto some type of yarn carrier. Either a cylindrical mandrel is used when a cylindrical yarn carrier is being employed, or a tapered mandrel is used for cone-shaped yarn carriers. The purpose of this invention is to provide a yarn carrier that will allow the cone or tapered type mandrels to be used for either cone-shaped yarn carriers or cylindrical type yarn carriers.

Generally speaking then, the invention resides in the provision of a yarn carrier having any desired outside configuration about which yarn may be wound and a bore or passageway defining an inside configuration having varying dimensions from one end of the carrier to the other and being adapted to be mounted on a tapered mandrel.

It is therefore an object of this invention to provide a yarn carrier of any desired outer configuration which may be received on a mandrel adapted to receive yarn cones.

A further object of the invention is to provide a yarn carrier which may have any desired outer configuration while the inside of the yarn carrier is adapted to be received on a tapered mandrel assembly.

A still further object of the invention is to provide a means for standardizing the yarn winding process by providing a means for selectively using either cylindrical or cone-shaped yarn carriers on a single tapered mandrel assembly.

Some of the objects of the invention having been stated, other objects will appear to those skilled in the art as the description proceeds taken in conjunction with the accompanying drawings, in which:

FIGURE 1 is a top plan view of one form of the invention;

FIGURE 2 is a longitudinal sectional view taken along the line 22 in FIGURE 1;

FIGURE 3 is a bottom plan view of the form of the invention shown in FIGURE 1;

FIGURE 4 is a top plan view of another embodiment of the invention;

FIGURE 5 is a longitudinal sectional view taken along the line 5--5 in FIGURE 4;

FIGURE 6 is a top plan view of a still further modification of the invention;

FIGURE 7 is a longitudinal sectional view taken along the line 7-7 in FIGURE 6;

FIGURE 8 is a longitudinal sectional view of a still further modification of the invention;

FIGURE 9 is a fragmentary view, with parts broken away, illustrating a tapered mandrel of the type cOntemplated for use with the yarn carriers of the invention; and

FIGURE 10 is a view similar to FIGURE 9, but illus- 3,454,235 Patented July 8, 1969 trating another tapered mandrel with which the invention may be used.

As a means of introduction to the invention, attention is first directed to FIGURES 9 and 10 which show two types of mandrels (M and M) currently in use and of conventional three-degree, 51-minute construction for purposes of illustration. The mandrels M and M include any suitable means, not shown, for releasably exerting radial or axial pressure against a yarn carrier to hold the yarn carrier on the mandrel and to prevent relative movement between the carrier and the mandrel during winding.

Referring to the embodiment shown in FIGURES 1 through 3, a yarn carrier 10 comprises a cylindrical outer wall 12 made of any suitable material, such as paper or plastic. Inner wall 14 is inwardly spaced from outer wall 12 at one end of the yarn carrier 10 and extends in converging relationship with outer wall 12 to a point 11 where inner wall 14 and outer wall 12 merge and form a thickened base portion 13. The upper surface of inner wall 14 defines an upper annular surface 16 as shown in FIG- URE 1. Longitudinal ribs 18 extend radially between outer wall 12 and inner wall 14 above the point 11 in FIG- URES 1 and 2 to provide bracing between the two walls.

For the purpose of making the carrier lighter in weight, to provide an engagement area for some types of mandrels, and to prevent chafing of the yarn tail, a plurality of longitudinal depressions 22 are spaced around the inner surface of base portion 13 defining inwardly extending longitudinal ribs 20. Ribs 20 engage the mandrel and provide clearance between the inner surface of the yarn carrier 10 and the mandrel.

FIGURE 8 shows another embodiment of the inven* tion wherein the yarn carrier is illustrated at 60 and comprises an outer, relatively rigid shell 62, cylindrical in shape, and a resilient inner portion 64 which may be of a foam-like material.

The resilient inner portion or insert 64 is bonded or otherwise suitably secured to the shell 62 and has a tapered inner wall 66 frictionally engageable with the mandrel M. The insert 64 is preferably internally dimensioned for a snug fit on the mandrel so that it will be compressed between its rigid shell 62 and the mandrel when in use. Since the insert 64 is foam-like and flexible, it is easy to slide onto the mandrel and also remove without binding, and therefore no ribs are provided. Insert 64 may include also an inner, rigid, cone-shaped shell 65 adhered to the inner surface of inner portion 64, if desired.

Although not limited thereto, the embodiment shown in FIGURES 4 and 5 is particularly adapted for use with the mandrel M shown in FIGURE 10 which exerts axial pressure on a yarn carrier to hold it during winding. As shown in FIGURES 4 and 5, a yarn carrier 30 is provided with outer cylindrical wall 32. Spaced around the inner surface of wall 32 are a plurality of ribs 34 which terminate at the top of the yarn carrier in an inwardly extending annular flange 35. As is shown in FIGURE 5 the ribs 34 extend downwardly at an angle toward outer wall 32 from flange 35 to a point 37 and form the abutment 36. Each of the ribs 34 includes an elongated medial portion 38 extending from the point 37 in parallel relation to wall 32 terminating at a point 40. A bevelled portion 42 of each rib 34 extends outwardly from point 40 to accommodate the mandrel. The medial portion 38 of each rib 34 is so cut away to eliminate unnecessary material, thus making a lighter product which is easier to manufacture.

Although not limited thereto, the embodiment shown in FIGURES 6 and 7 is also particularly adapted for use with mandrel M shown in FIGURE 10 which exerts axial pressure on a yarn carrier to hold it during winding.

The carrier 50 of FIGURES 6 and 7 is similar to carrier 30 of FIGURES 4 and 5 in that it does not have a smooth inner passageway, however, it is formed with a longitudinal extension 58 contiguous with the outer wall protruding beyond the distal end of the mandrel and preventing any damage that might be done by the exposed end of the mandrel. Carrier 50 also has an outer wall portion 52 and inner angularly tapered ribs 54 which are tapered from the bottom or proximal end of the carrier inwardly at an angle of approximately two degrees (or a lesser degree than the mandrel taper) throughout the length of the rib to the distal end of the carrier terminating an inwardly extending annular flange 56. Flange 56 is spaced inwardly from the outer or distal end of the yarn carrier 50 to form the longitudinal extension 58 to protect the yarn from the damage that might be done by the exposed portion of the mandrel M or M. The yarn carrier only engages the surface of the mandrel at the inner edge 57 of flange 56 and at the bottom or proximal end or base 59 of ribs 54 for the same purposes as ribs 34 of yarn carrier 30.

From the foregoing description and the accompanying drawing, it will be seen that the inventive concept can be embodied in numerous specific constructions. For example, a single tapered mandrel can be used with a yarn carrier having an outer surface of any desired shape and still be within the spirit of the invention, which is intended to be limited in scope only according to the claims.

In the drawings and specifications, there have been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a descriptive sense only and not for purposes of limitation, the scope of the invention being defined in the claims.

I claim:

1. A yarn carrier adapted for use on a tapered man drel of a winding machine, said yarn carrier comprising a tubular structure including a generally tapered inner wall of a smaller diameter at one end than at the other, the inner wall being of such configuration that when assembled onto said tapered mandrel, the inner surface of said wall engages the tapered mandrel at least at each end of said carrier, said yarn carrier further comprising a generally cylindrical outer wall connected to said tapered inner wall and a plurality of peripherally spaced longitudinal ribs extending between said outer and said inner wall, said ribs extending radially inwardly a greater distance at said one end of said carrier than at the other end.

2. A yarn carrier according to claim 1 and further including a radially inwardly extending, annular flange adjacent said one end, said ribs extending between the flange and the other end, the inner surface of said ribs lying outwardly of an imaginary straight line between the innermost portion of said flange and the inner surface of said other end.

3. A yarn carrier according to claim 2 wherein said outer wall further includes a longitudinal extension contiguous with said outer wall and protruding beyond the junction of said inwardly extending annular flange and said outer wall, whereby yarn is protected from the end of the mandrel, when the yarn carrier is mounted thereon.

4. A yarn carrier according to claim 1 wherein said inner wall is spaced radially inwardly from said outer wall at one end of the yarn carrier, said inner wall extending longitudinally of said yarn carrier in converging relationship with said outer wall to a point where said outer wall and said inner Wall merge and form a thickened base portion at the other end.

5. A yarn carrier according to claim 4 wherein a plurality of depressions are formed in the inner surface of the base portion and extend longitudinally along a portion of the inner surface of the base portion.

References Cited UNITED STATES PATENTS 50,116 9/1865 Goulding 242-46.2l 152,219 6/1874 Draper 24246.21 180,145 7/ 1876 Mayor 24246.21 188,784 3/1877 Draper 24246.2l 2,195,240 3/1940 Chaplin et a1. 242-11832 2,236,178 3/1941 Kennedy 242-4621 FOREIGN PATENTS 14,966 1902 Great Britain. 23,874 1892 Great Britain.

STANLEY N. GILREATH, Primary Examiner.

U.S. Cl. X.R.