US3307803A - Yarn winding carrier - Google Patents

Description

March 7, 1967 G. TIGGES YARN WINDING CARRIER Filed June 2, 1965 Fig. 3

United States Patent 3,307,803 YARN WINDING CARRIER Gerhard Tigges, Wuppertal-tlronenberg, Germany, as-

signor to Firma Lebreeht Tigges K.G., Wuppertal- Cronenberg, Germany, a corporation of Germany Filed June 2, 1965, Ser. No. 460,761 Claims priority, application Germany, June 18, 1964, T 26,394; July 11, 1964, T 26,570 1 Claim. (Cl. 242--118.11)

The present invention relates to a yarn winding carrier consisting of a radially resilient wire sleeve, the latter being formed by a spring bent in a wave-like manner.

Known structures of this kind have the disadvantages that the resiliency characteristic is excessive at the bottom end of the carrier, and that the latter is urged into the axial recess of a yarn roll, is pressed into the end side of the yarn roll with its radial, outwardly bent legs and that the yarn roll is marked there accordingly.

It is one object of the present invention to provide a yarn winding carrier wherein the radial resiliency present at one end can be adapted by additional, simple structural elements to the prevailing conditions, whereby the additional elements prevent, a marking or imprinting of the legs on the end side of the yarn roll.

It is another object of the present invention to provide a yarn winding carrier wherein the spring windings are gripped on their bottom end by a rigid, closed, circumferentially formed shoe, limiting their radial resiliency.

Due to this structure, a yarn winding carrier is realized Which is favorable as to manufacture and advantageous as to its use. It starts with the known, radial resilient carrier sleeves, which are formed by a wave-like spring. The bottom end is equipped with a shoe which grips the respective sections of the spring windings. can be performed with play or in a rigid manner. If a play is provided, this play permits also a corresponding large, foot-side radial resiliency of the yarn winding carrier. At the remaining sections, however, unrestrained radial resiliency of the yarn winding carrier is completely maintained. Merely at this foo-t side end is the resiliency limited and under circumstances reduced to zero.

If the start is made with frusto-conical yarn winding carriers, the different yarn winding carriers can be pro-v duced by application of shoes of different diameters, which carriers are distinguished from each other by a maximal measure of spreading at the foot end.

The formation of the shoe as a circumferential, closed structural element brings about the essential advantage thereby that a planar engagement takes place on the end side of the yarn winding and in case of superposed arrangement on the end faces of the yarn windings, respectively. Such planar engagement avoids any marking on the end side of the yarn winding, even though the carrier may be forced into the axial recess of the yarn winding with considerable hit or push forces and, when several yarn windings are aligned for dyeing on a mandrel with extensive pressure, respectively.

It is also easier to wind the yarn winding carrier. The limited resiliency characteristic permits a better mounting and coordination of a slot-drum-cross-winding machine. Also the springing off from the cap creel is eliminated because the foot end of the yarn winding carrier cannot expand so far that the last yarn winding layers are completely thrown off.

On the other hand, the unwinding over the head is completely possible due to the still present unlimited radial resilient action at the opposite end of the yarn winding carrier, particularly if thespring windings of the yarn winding carrier are disposed up to this end in radially waved bendings.

The gripping Patented Mar. 7, 1967 It is a further object of the present invention to provide a yarn winding carrier wherein the shoe is designed of U-shape. It is, first of all, of advantage if the shoe comprises two superposed annular plates connected at their peripheries, which annular plates secure displaceably therebetween, limited in radial direction, the radially projecting feet.

It is still a further object of the present invention to provide a yarn winding carrier, wherein a catching of a thread on the inner edges of the feet is advantageously prevented such that the upper annular plate has opening slots through which the spring winding legs, disposed in the longitudinal direction of the-yarn winding carrier, extend. These opening slots limit thereby simultaneously the radial displacement of the spring winding legs, whereby the radial resiliency of the yarn winding carrier is limited at its foot end by simple means.

It is yet another object of the present invention to provide a yarn winding carrier, wherein the shoe has at its upper side radially oriented slots for the passage of only one spring leg. It has been found that this construction insures a higher degree of operational safety. Particularly, the case of a wet treatment of the yarn windings over the yarn winding carrier, where at first a sleeve of filter is applied; the disadvantage is removed that during the wet treatment remnants of the filter paper are urged into the slots of the shoe, which make possible the radial resiliency.

Owing to the provision that each slot is determined for the passage of one individual spring leg only, its measurement may be kept so narrow that the disturbing clamping of the filter paper or other remnants can be safely prevented. The shoe has at its upper side a surface formed as smoothly as possible. The very narrow slots of about the width of the spring-wire diameter prevent also displacement of the legs in peripheral direction.

It 15 also a further object of the present invention to provide a yarn winding carrier, wherein each radial slot is closed at its radially inwardly disposed end side by an upwardly extending rim of the lower shoe portion.

With these and other objects in view, which will become apparent in the following detailed description, the present invention will be clearly understood in connection with the accompanying drawings, in which:

FIGURE 1 is an elevation of the yarn Winding carrier according to the present invention;

FIG. 2 is a top plan View of the carrier disclosed in FIG. 1; and

FIG. 3 is a section along the lines 33 of FIG. 2.

Referring now to the drawing and in particular to FIGS. l-3, an embodiment is disclosed, wherein the yarn winding carrier consists of a radially resilient wire sleeve and is formed by a wave-like bent spring 1. The lengthwise disposed spring legs can be arranged also additionally with radially directed bendings, in order to insure a safe unwinding of the yarn over the head of the carrier.

The spring windings are bent outwardly to form radially outwardly directed feet 2 at their foot end. These outwardly directed feet 2 are gripped by a rigidly formed shoe 3. The shoe 3 limits the radial elasticity of the yarn winding carrier at its foot end. The shoe is formed by two superposed annular plates 4a and 5a; the latter grip therebetween the radially protruding feet 2. The plate 4a, forming the bottom of the shoe 3 is drawn upwardly to form a ring 6 at its inwardly disposed edge.

The upper plate 5a has radially disposed opening slots 7a. Always a single spring winding leg 1' only enters a corresponding opening slot 7a. Consequently, a flap 10' leading to a closed upper side 5a of the shoe 3, extends thus basically between each pair of adjacent spring winding legs 1'. Each radial slot 7a is closed on its inner radially inwardly disposed end side by the upwardly drawn rim 6 of the bottom shoe portion 4a.

The limitation of the radial resiliency is brought about such that the longitudinally disposed spring winding legs 1' cannot move further outwardly, upon engaging the edge 7a of the corresponding opening slots 7a, and cannot be pressed further inwardly upon abutment of the upwardly drawn wall or rim 6. The feet 2 of the yarn winding carrier, gripped by the shoe 3, yet otherwise freely movable, can completely cooperate with the corresponding resiliency possibilities of the yarn winding carrier.

The superposed ring plates 4a and 5a are connected together Within the range of their peripheral Zones 8, e.g., by spot welding or any other suitable means. Apertures 9, which extend through the annular rings 4a and 5a favor the passage of liquid in the case of a wet treatment of the yarn winding. The drawing shows the apertures in the top plate 5a only.

The frusto-conically formed yarn winding carrier can move freely resiliently in its upper range. Due to the free gripping though with play of the outwardly bent feet 2 by the U-shaped shoe 3, the resiliency resulting from a torsional movement of the foot sections 2 can cooperate with this resiliency at the upper end of the yarn winding carrier. The flaps are designed corresponding to the curvature of the upwardly drawn rim 6 at their inwardly directed edge 10".

It will be understood by those skilled in the art that the use of certain features shown in the disclosed embodiment is not necessarily limited to the same.

While I have disclosed one embodiment of the present invention, it is to be understood that this embodiment is given by example only and not in a limiting sense, the scope of the present invention being determined by the objects and the claim.

I claim:

A yarn winding carrier comprising a continuous bent spring wire radially resilient,

said spring wire having at the lower end U-shaped,

radially outwardly directed angular portions disposed in a single plane and constituting feet of said spring wire,

an annular, rigid shoe gripping said angular portions of said spring wire,

said shoe comprising an annular upper shoe portion and an annular lower shoe portion,

said shoe portions being connected together and locating therebetween said radially outwardly directed feet,

said annular upper shoe portion having a smooth upper annular face and a plurality of slots receiving said radially outwardly directed angular portions,

said annular, lower shoe portion having at its inner edge an upwardly directed, inner peripheral cylindrical wall extending to said annular upper shoe portion and closing said slots in radial direction,

said annular, lower shoe portion having a smooth bottom face, the entire surface of the latter lying in the same plane,

said lower shoe portion being connected to said annular upper shoe portion at the outer side edge thereof above the plane of the bottom plane, and

said annular upper shoe portion having for each of said outwardly directed angular portions a separate one of said slots.

References Cited by the Examiner UNITED STATES PATENTS 1,868,634 7/1932 Gregory 24277.2 2,192,111 2/1940 Vlaszac 242118.1l 2,656,703 10/1953 Zingg 68l98 FOREIGN PATENTS 1,134,349 12/1956 France.

382,217 10/1932 Great Britain. 543,495 5/1956 Italy.

FRANK J. COHEN, Primary Examiner.

G. F. MAUTZ, Examiner.

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