US3074667A

US3074667A - Bobbin holder for spinning machines and the like

Info

Publication number: US3074667A
Application number: US55240A
Authority: US
Inventors: Keyser Johann Jacob
Original assignee: Individual
Current assignee: Individual
Priority date: 1959-09-12
Filing date: 1960-09-12
Publication date: 1963-01-22
Anticipated expiration: 1980-01-22

Description

Jan. 22, 1963 J. J. KEYSER 3,074,667

BOBBIN HOLDER FOR SPINNING MACHINES AND THE LIKE Filed Sept. 12, 1960 4 Sheets-Sheet 1 Jan. 22, 1963 J. .1. KEYSER 3,074,667

BOBBIN HOLDER FOR SPINNING MACHINES AND THE LIKE Filed Sept. 12, 1960 4 Sheets-Sheet 2 \I W W W W J. J. KEYSER 3,074,667

BOBBIN HOLDER FOR SPINNING MACHINES AND THE LIKE Jan. 22, 1963 4 Sheets-Sheet 3 Filed Sept. 12, 1960 Wyn/r09 .3: ha n )1 T ach 72 8/38! Jan. 22, 1963 J. J. KEYSER 3,

BOBBIN HOLDER FOR SPINNING MACHINES AND THE LIKE Filed Sept. 12, 1960 4 Sheets-Sheet 4 1211 $2115 J'Jlc Ignaz INVEN TOR United States Patent 3,674,667 BGBBIN HQLDER FQR SPlNNiNG MACHKNES AND THE LEKE Johann Jacob Keyser, Grabenallce l6, Aarau, Switzerland Filed Sept. 12, race, Ser. No. 5524i) fiiaims priority, application (Germany Sept. 12, 1959 13 Claims. (til. 242-431) The present invention relates to bobbin holders of spinning machines and the like for bobbin sleeves to be supported at their upper and lower ends while the fiber strand is being withdrawn from the bobbin in a direction transverse to the longitudinal axis of the bobbin.

The arrangement of bobbins on spinning machines with a fiber strand being withdrawn from the bobbin transverse to the longitudinal axis thereof may be efiected in various manners. According to one manner of arranging the bobbin sleeves, the lower as well as the upper end of the bobbin sleeves is supported. To this end, the well known so-called mounting spindle or the spindle-less mounting system is employed. Both of these arrangements will in addition to a stationary upper support for receiving the upper end of a bobbin sleeve require such a support for receiving and supporting the lower end of the bobbin sleeve. Such supports or carriers may be provided in the form of a longitudinal rail, ledge, or a board, or they are formed by arms stationarily arranged in a creel for respectively forming one or two supports of the lower end of a bobbin sleeve. Such arrangements have the drawback that they easily collect dust and lint and, in addition thereto, they impede the handling of the bobbins in view of the provision of the lower carrier or support. in this connection it will be appreciated that the position of the bobbins at their respective two supports is fixed so that, particularly when the bobbins are full, it is almost impossible to pass the hand between two bobbins of afront row in order to reach a bobbin of the rear bobbin row, unless the normal withdrawal of the fiber strand is impeded or one of the front bobbins is completely removed inasmuch as the lower longitudinal support will not permit a handling of the rear bobbin from below.

In addition thereto, the arrangement of the upper and lower hearings or supports for the bobbin sleeves may, due to the lack of precision when first mounting said bearings or supports, cause differences with regard to the mutual spindle distances whereby a proper withdrawal of the fiber strands from the bobbins will be impeded if, for instance, the lower and the upper bearing of a bobbin sleeve are not properly aligned in a vertical plane.

Furthermore, it is extremely difficult and cumbersome to adapt a creel with the above mentioned mountings for bobbins to other conditions of operation, for instance when bobbins with larger or shorter length or different diameter are employed. It will be appreciated that, if such changes are to be effected, practically a complete reconstruction of the creel is required and frequently the employment of completely new parts is indispensable.

in an effort to overcome the above mentioned drawbacks, it has been suggested to support a bobbin sleeve at its upper end only as for instance by means of the well known suspended bobbin holders. While in this manner a number of the above mentioned drawbacks could be avoided, the exclusively suspended mounting of the bobbins entails other drawbacks. Above all, with bobbins having relatively large length and large diameter, disuniform pendulum movements of the bobbins will result during the withdrawal of the fiber strand which pendulurn movements are caused by the pull either near the ser es? M are used in modern plants, which sizes are continuously increased, this type of mounting of bobbins has not proved fully successful in overcoming all of the above mentioned drawbacks.

While the various bobbin holders of heretofore known designs meet certain requirements in practice, the difficulties increase to the extent to which the machines become more compact and to which at the same time the bobbins increase in size. When the machines become more compact while simultaneously the bobbin diameter increases, it is impossible so to modify the creel that a proper handling of the bobbins will be assured aside from the other simultaneously occurring and unavoidable drawbacks. It a creel with more superimposed rows of bobbins were employed as it is now customary, this would automatically the handling of the bobbins more ditiicult, particularly it bobbins of increased length were employed. Moreover, the other above mentioned drawbacks would still remain.

in addition to an easy handling of the bobbin in a mounting creel of a spinning machine it is necessary that the bobbin holders can easily be adapted to various sizes of the bobbins with regard to length and diameter. Such adaptability is, however, extremely difiicult when employing the heretofore known mounting spindles. Even the spindle-less mounting and the suspended bobbin holders will not be able to meet all the requirements with a minimum of drawbacks.

It is, therefore, an object of the present inveniton to provide a spindle-less mounting of bobbin holders, which will overcome the above mentioned drawbacks while retaining the advantage of the heretofore employed suspended bobbin holders.

lt is another obiect of this invention to provide a bobbin holder as set forth in the preceding paragraph, which will assure an easy handling of the bobbins and will make it possible to adapt the bobbin holder to various bobbin sizes.

It is also an object of this invention to provide a bobbin holder as set forth above which is surprisingly simple in construction and is relatively low in cost.

These and other obiects and advantages of the invention will appear more clearly from the following specification in connection with the accompanying drawings, in

which:

FIG. 1 is a perspective view of a portion of a creel with bobbin holders according to the present invention.

FIG. 2 is a view showing partly in section and on a larger scale than FIG. 1 a mounting or bearing for the lower end of a bobbin sleeve.

FIG. 3 is a view showing partly in section a connection for a bobbin holder according to the invention for connecting the bobbin holder to a holding bar of a creel, said connection being connected to the hearing or support for the upper end of a bobbin sleeve.

FIGS. 4 and 4a respectively illustrate in side view and top view a strand guide placed upon the holding arm.

P16. 5 is a perspective view of a portion oi a creel with modified bobbin holders according to the invention.

FIG. 5a illustrates, partly in section, details in connection with the suspension of the bobbin holder assembly.

FIG. 6 is a view showing partly in view and partly in section a hearing or support for the upper end or" a bobbin sleeve.

FIGS. 7 and 8 are views which illustrate details for receiving and supporting the lower end of a bobbin sleeve.

H6. 9 is a side view of a strand guide mounted on a holding arm and provided with two guiding means for the strand.

P16. 10 is an exploded vie v in section of the strand guide according to PEG. 9.

3 FIGS. 11a to 11d and 12a to 12c are views which diagrammatically illustrate various possibilities for fastening a bobbin holder according to the present invention to holding bars of the creel.

General Arrangement The above mentioned objects have been realized according to the present invention by providing a'holding arm of rigid material which has a leg extending in longitudinal direction of the bobbin sleeve and has at least its lower end angled oil in transverse direction while the free end of the transverse leg is equipped with a bearing or support for the lower end of a bobbin sleeve. According to one embodiment of the invention, the upper end of the longitudinal leg of the holding arm is angled off in transverse direction in the same manner as the lower end while the free end of the upper transverse leg is pr vided with a hearing or support for the upper end of a bobbin sleeve.

According to another embodiment of the invention, the holding arm or holding member has its lower end of the longitudinal leg provided with a transverse arm symmetrically extending to both sides, while the two free ends are each equipped with a hearing or support for the lower end of a bobbin sleeve. The arrangement may be such that the upper end of the longitudinal leg of the holding arm is provided in the same manner as the lower end with a transverse arm symmetrically extending to both sides while the free ends of said transverse arm are each equipped with a bearing or support for the upper end of a bobbin sleeve.

A further feature of the invention consists in that the upper end of the holding arm has at least one connecting member for connecting the holding arm to the machine. Said connecting member is so designed that it will allow a pendulum movement of the holding arm transverse to its longitudinal central plane. In this connection various possibilities exist for arranging the connecting member. Thus, for instance, the connecting member may be arranged in the longitudinal axis of the longitudinal leg of the holding arm or it may be arranged in the longitudinal axis defined by the bearings for the lower and upper end of a bobbin sleeve, or the connecting member may be arranged between these longitudinal axes.

With bobbin holders according to the present invention, it is possible selectively to mount a single row of bobbins or two rows of bobbins arranged one behind the other in the creel of a spinning machine while the handling of the bobbins in each instance will be simple and easy. This is due to the fact that the pendulum-like connection of bobbin holders makes it possible to push any or the bobbins, which might otherwise impede the handling of another bobbin, toward the side without aftesting the proper withdrawal movement of the fiber strands. Moreover, inasmuch as only narrow surfaces are otfered by the bobbin holders, the collection of lint will be cut down to a minimum while at the same time an easy handling and cleaning will be assured.

With those bobbin holders according to the invention whose holding arms have no upper transverse legs, it is possible to provide a bearing or support for the upper end of a bobbin sleeve on a separate connecting member which in such an instance may also be separately mounted on the machine. Furthermore, there exists the possibility easily to adapt a bobbin holder according to the present invention to various bobbin lengths if the longitudinal leg of the holding arm is adjustable as to diitcrent lengths.

It is furthermore advantageous to provide the longitudinal leg of the holding arm with a strand guide adapted to be slipped over said longitudinal arm and adjustable as to height. According to a particularly simple embodiment, the strand guide comprises two parts which are at least partly resilient and are connected to each other by interengaging each other in a manner of teeth, the teeth of each part extending more than half around the circumference of the holding arm. Advantageously, at least one of these parts is provided with a strand guide.

A further important feature of the present invention consists in that the supports or bearings for the lower and/ or upper end of a bobbin sleeve may be composed of parts which are adaptable to various bobbin dimensions. To this end, the support or bearing for the lower end of a bobbinsleeve may comprise a bearing pivot exchangeably mounted on the free end of the transverse leg, and may furthermore comprise a mushroom-shaped cover rotatable on said pivot. Furthermore, the support or bearing for the upper end of a bobbin sleeve may comprise a pivot and a disc, ball or the like mounted thereon.

Structural Arrangement Referring now to the drawings in detail and PEG. 1 thereof in particular, this figureillustrates a portion of a creel comprising in a manner known per se machine columns 1, supporting arms 2 mounted on and supported by said columns 1 and holding bars 3 which are supported by said supporting arms and extend in longitudinal direction of the machine. Mounted on the holding arms 3 are the bobbin holders 4 according to thepresent invention. Each bobbin holder 4 comprises a longitudinal arm 5 having its lower end angled ch in transverse direction so as to form a transverse leg 6. Similarly, the upper end of the longitudinal arm 5 is angled off in trans verse direction to form a transverse leg 7. The free end of the lower leg 6 has mounted thereon a support or bearing 8 for the lower end of a bobbin sleeve, whereas the free end of the upper transverse leg 7 has mounted thereon a support or bearing 9 for the upper end of a bobbin sleeve. According to the arrangement of the bobbin holders of FIG. 1, the support 9 for the upper end of a bobbin sleeve has connected thereto a connecting member for connecting the holding arm to the creel in such a way that a'pendulum movement of the holding arm transverse to its longitudinal central plane will be possible. The longitudinal arm 5 of the bobbin holder has'slipped thereupon a strand guide 16 which, due to its particular construction, is easily adjustable as t height.

FIGS. 2 to 4 more clearly illustrate the details of the bobbin holder according to the invention. Thus, FIG. 2 shows a support 8 for the lower end of a bobbin sleeve. As will be evident from FIG. 2, the free end of the transverse leg 6 has slipped thereon a cup-shaped bean ing member 11 provided with a bore 11a in conformity with the diameter of leg 6. This member 11 may consist of synthetic material as for instance polyamides. Approximately at'the center portion of the bearing member 11 there is provided a threaded bore 12 engaged by a correspondingly threaded connecting screw 13 for con necting the bearing member 11 to thetransverse 'leg 6. By means of the connecting screw 13, the distance of the support 8 from the longitudinal arm 5 of the bobbin holder assembly 4 can easily be adjusted which means that the position of the support 8 can easily be adapted to' bobbins with difierent diameters. The upper end of the connecting screw 13 is designed as journalling pivot 14 for a mushroom-shaped cover 15 rotatably mounted on pivot 14. The said cover 15 is preferably made of' a sufiiciently elastic synthetic material as for instance polyamides so that the lower marginal portion of the mushroom-shaped cover 15 may be placed over the upper marginal portion of the cup-shaped bearing member ll until the recess 16 on the bottom side of cover 15 rests upon pivot 14. Inasmuch as it is possible without difiiculties to exchange the connecting screw 13 with pivot 14 for a connecting screw with a difierently shaped pivot, and since it is similarly possible to exchange the mushroom-shaped cover 15 for a differently shaped cover and to place the same over the bearing member 11, it will be obvious that the support 8 for the lower end of a bobbin sleeve can easily be adapted to variou sizes of bobbin sleeves and bobbin weights in such a Way that a proper withdrawal of the fiber strand will be assured without running the risk that the fiber strand will besubjected to a tight jerky withdrawal and thereby to faulty drafting or to undesired increased speeds.

PEG. 3 shows a support 9 mounted on the upper transverse leg 7 for supporting the upper end of a bobbin sleeve. The end of the transverse leg 7 is, in the particular example shown in the drawing, provided with a thread t7 adapted to receive a member 1% which is provided with a correspondingly threaded bore 18 and forms an extension of an annular disc 19. Disc 1% has a bore 24} through which extends a threaded pin 21 ha ing its head hanging downwardly. Resting upon the head of threaded pin or screw 21 is a receiving disc 22, preferably of a synthetic material such as polyamides the outer diameter of which is somewhat less than the inner bore of a bobbin sleeve which is to be supported by disc 22 at the upper end. The disc 22 supports a spacer sleeve 23 extending to the bottom side of disc 19-. Furthermore, the free end of screw 21 which extends above disc 19 is engaged by a nut 24 the outer circumterence of which is so dimensioned that nut 24- may be passed through the slit 3a of the holding bar 3. For purposes of connecting the support 9 and thus the bobbin holder to the holding bar 3, first the disc 22, then the spacer sleeve 23 and thereupon the annular disc 19 are placed over screw Zll whereup n nut 24 is screwed merely onto the free end or screw 21. Thereupon the nut 24 is in inclined position introduced into the slot of the holding bar 3 and in the latter is positioned in such a way that screw 21 will hang downwardly in vertical direction. Thereupon, by turning the screw 21 the upper side of disc 19 and the lower edges of holding bar 3 are clamped to each other so that the position of the bobbin holder on the holding bar 3 is fixed. When the thread 17 at the end of the upper transverse leg '7, and the threaded bore 13 in the extension 1% have sufiicient length, it will be possible by shortening or extending the threaded arrangement, to vary the distance between disc 22 serving as support for the upper end of a bobbin sleeve, and the longitudinal arm 5 of the bobbin holder. This means the same adaptation to a difierent bobbin diameter is possible as it was described for support it for the lower end of a bobbin sleeve at the lower transverse leg ti of the bobbin holder. Moreover, it is, however, important that due to the threaded arrangement 17, 18 a pendulum movement of the holding arm transverse to its longitudinal central plane will be possible. This means that the bobbin is able to adjust itself into the correct thread withdrawal position in conformity with the weight of the bobbin and the occurring pull on the strand. Furthermore, the operator will be able to pass his hands also between two for instance full bobbins while the latter by a pendulum movement move to the side without the danger that they will be passed out of their lower or upper bearings or supports. With such a pendulum movement, the bobbin will remain in its respective position parallel to the longitudinal arm 5 of the bobbin holder without in any way jamming in the supports for the ends of the bobbinsleeve because the upper support 9 will, due to the rounded outer edge of the receiving disc 22 allow a pendulum movement, and due to the fact that the lower support b in view of th journalling of the mushroom-shaped cover 15 on pivot 14 will be able to follow the pendulum movement of the bobbin holder to a corresponding extent. withdrawal of the fiber strand will not be subjected to any disturbance. On the other hand, it is for instance necessary that the operator will be able to pass his hands between the bobbins when a fiber strand has broken and has to be passed over the strand guiding means on strand guide 1%. Subsequent to such an operation, the respective bobbins will by themselves return to their normal withdrawal position.

Thus, the

FIG. 4 illustrates the strand guide it on a larger scale. As will be evident from FIG. 4, the strand guide is composed of two

parts

25 and 26 which at least partly are resilient or may be made completely of elastic material, such as high-impact-polystyrene. Each of the

parts

25 and 26 has

teeth

27, 28 extending in longitudinal direction of the strand guide with tooth spaces 29 and 3b so that the teeth of one part will engage the tooth spaces of the other part and vice versa. in this way, the two parts are interconnected. Each of the

parts

25 and 25 of the strand guide it) extends with its teeth around more than half the circumference of the longitudinal arm 5' of the bobbin holder. If desired, the part 25 provided with a strand guide 31, may alone be slipped upon the longitudinal arm 5. For securing the respective position and for preventing the collection of soil or dirt, it is preferable to provide the second part 26. Inasmuch as the strand guide lit is held on the longitudinal arm 5 merely by the own elasticity of at least a portion thereof, there exists the possibility to adjust the strand guide 10 as to that height which is most favorable for the unwinding of the fiber strand.

The exchange or the insertion of a bobbin into a bobbin holder assembly 4 according to the present invention is effected in a very simple manner. it should be noted that the upper support 9 makes possible an easy slipping over of the upper end of the bobbin sleeve whereupon the lower end of the bobbin sleeve is placed upon the support 8 at the lower transverse leg 6. This completes the insertion of a new bobbin. The removal of a full bobbin sleeve is eliected in a correspondingly simple manner inasmuch as the bobbin holder assembly 4 together with the bobbin due to the pendulum connection thereof adjusts itself in its position with regard to the vertical plane when being moved out of this direction.

Referring now to PEG. 5, this figure shows a creel which similar to the embodiment of FIG. 1 comprises vertical columns 1, supporting arms 2 and holding arms 3 connected thereto. However, the bobbin holders shown in FIG. 5 differ from those of FIG. 1 inasmuch as they permit the mounting of two bobbins one behind the other by means of a single bobbin holder. The bobbin holder 5i. likewise has a longitudinal arm 52 the lower end of which has connected thereto two

transverse legs

53, 53 arranged symmetrically with regard to the longitudinal arm 52. The legs 53' and 53" have their free ends provided each with a support 54- for the lower end of a bobbin sleeve. Similarly, the upper end of the longitudinal arm 52 is provided with transverse legs 55', 55 extending symmetrically to both sides. Each of the free ends of the transverse legs 55' and 55" is provided with a support for the upper end of a bobbin sleeve. Also in this instance, for purposes of connecting the bobbin holder 51 to the holding rod 3, there is provided a connecting member 57 which according to the illustrated embodiment is arranged in the longitudinal axis of the longitudinal arm 52.

The connection between the connecting member '57 and the upper transverse legs 55', 55" of the bobbin holder may similar to the previous embodiment described above be arranged in such a Way that a pendulum movement of the bobbin holder 51 will be possible in a direction transverse to the longitudinal central plane. For instance, instead of the disc 22 shown in FIG. 3, the sleeve 58 according to FIG. 5 may by means of screw 21, spacer sleeve 23, nut 24 and a washer instead of annular disc 19 be connected to holding rod 3. For instance, the upper transverse legs 55' and 55" may be screwed into sleeve 58 similar to the manner in which the upper transverse leg '7 of FIG. 3 was screwed into the bore 13 of disc 19,

. so that the transverse legs 55' and 55" will be fixedly 10- cated. However, between said transverse legs 55' and 55" there will be a sufiicient distance to allow the suspension of longitudinal arm 52 in sleeve 55 between the ends of the

legs

55 and 55" so as to to be able to carry gorges? out a pendulum movement. As will be seen from the drawing, the suspension of the longitudinal arm 52 in sleeve 53 is eiiected by passing the T-shaped head of the longitudinal arm 52 into a transverse slot provided at the: bottom side of sleeve 58 whereupon said head is rotated; within sleeve 58 by 90 so that the longitudinal arm 52; may swing pendulum-like in the slot of sleeve 58 .(PIG.. a).v Also with this embodiment of the bobbin holder, a strand guide 59 may adjustably he slipped over the longitudinal arm 52.

FIGS. 6 to illustrate details of the embodiment of the bobbin holder as shown in FIG. 5. FIG. 6 illustrates a support 56 for the upper end of a bobbin sleeve which. support in this instance is formed by a ball 64 made for instance of synthetic material, such as polyamides. Ball 6% is by means of threaded stud 61 connected to the free end of leg portion 55 and leg portion 55" by threadedly engaging a threaded bore 62. In this way, it is possible to exchange ball 60 and to adapt its size to bores of different large bobbin sleeves.

FIG. 7 illustrates a support 5% for the lower end of a bobbin sleeve. Depending on the required running properties of the bobbins to be mounted, a bearing stud or pivot 64 is inserted into a bore 63 at the free end of the lower transverse leg 53' 53". The upper end of stud 64 may be designed difierently as shown in FIG. 8. By selectively mounting one of the illustrated

bearing studs

64, 64, 64 or 64 in bore 63 of the leg portion 53', 53", the support of bearing 54- may be adapted to various conditions. The exchange is also very simple inasmuch as the stud 64 is held merely by a securing pin 65 which extends through corresponding bores in leg portion 53', 53" and in stud 64. Pin 65 at the same time represents a retaining element for the mushroom-shaped cover 66 which latter has its bottom side provided with a bore less than the length of pin 65 but provided in the diameter of the bore with a cut-like slot the length of which substantially corresponds to the length of pin 65. In this way, it is possible to pass the cover 66 with its recess 67 at the bottom side thereofrelatively easily over the stud 64 and pin 65 or to remove the same therefrom so that also various shapes of cover 66 may be employed which will permit to adapt the structure to the respectively mounted bobbin sleeves.

FIGS. 9 and 10 illustrate similar to FIG. 4 a strand guide adapted to be slipped over the longitudinal arm 52. It is clearly evident from these figures how the two

parts

68 and 69 engage each other by means of their teeth in such a way that the teeth 70 of part 68 engage the tooth spaces 71 of part 69, whereas the tooth spaces 72 of part 68 are engaged by the teeth 73 of part 69. In this instance, each of the parts '68 and 69 is provided with a strand guide 74. FIG. 10 furthermore illustrates how the length of the longitudinal arm 52 may be varied. The longitudinal arm 52 consists in this instance of two

arm sections

52 and 52" both ends of which are provided with a threaded bore '75 into which a thread stud 76 may be screwed to a more or less extent thereby bringing about a variation in the overall length of the arm 52. This makes possible to adapt the bobbin holder to various lengths of bobbin sleeves which variations can be effected in a very simple manner. When the subdivision of the longitudinal arm into arm sections 52' and 52 is efiected where normally the strand guide is mounted on the longitudinal arm 52, the said strand guide will simultaneously serve as safety means against unintentional turning of arm sections 52' and 52 relative to each other and will at the same time serve as a cover for the screw connection and in this way protect thesame against soiling and deposit of lint.

Due to the exchangeability of the individual parts of the supports 54 and 56 and the possibility of varying the length of the longitudinal arm 52, it is possible easily to adapt the bobbin holder to various bobbin sizes and Weights which adaptability assures proper running properties of the suspended bobbins and a proper handling of the bobbins, particularly inasmuch as the bobbin holder is suspended in a pendulum-like manner.

FIGS. 11 and 12 diagrammatically illustrate various possibilities for the construction and arrangement of bobbin holders on holding bars 3 of the creel. The bobbin holder 81 has substantially the shape shown in FIG. 1. The pendulum-like connection of the bobbin holder to a holding bar 3 is eficcted by means of the connecting member 82 in the longitudinal axis defined by the supports for the lower and upper end of a bobbin sleeve. The holding arm 83 has substantially the same basic shape as the holder 81 but the connecting member 84 which holds the holder 83 to the holding bars 3 is arranged in'the longitudinal axis of the longitudinal arm oi": holder 83. Holder arm 35 has only its lower end provided with a transverse arm so that it is linked to the connecting member 86 by means of its longitudinal arm, said connecting member 86'being inserted into the hold ing bar 3. In this instance, a separate connecting member 88 is provided for the support 87 of the upper end of a bobbin sleeve. Theconnecting member 88 may be individually inserted into a further holding bar 3'. It is, of course, to be understood that the holding bar 3' has to be arranged at such a distance fromholding bar 3 that the support for the lower end of a bobbin sleeve will be aligned in a common longitudinal axis with the upper end of the same bobbin sleeve. The holding arm 89 has substantially the same basic form as the holding arms 81 and 83. However, in this instance the connecting member 90 is provided between the longitudinal axes defined by the longitudinal arm and the two supports. Furthermore, the drawing shows that naturally also one of the illustrated bobbin holders may have a longitudinally variable longitudinal arm for receiving a bobbin.

FIG. 12 again shows various possibilities of mounting bobbin holders for receiving each two bobbins. The holding arm 91 has its upper transverse leg provided with two connecting members 92 on two holding bars 3 of the creel. The two connecting members 92 are provided between the longitudinal axis of the longitudinal arm and the respective longitudinal axes defined by the supports for the bobbin sleeves and arranged at both sides of the longitudinal arm. The holder arm 93 is only by means of a single connecting member 94 connected to a holding bar 3 while, of course, the connecting member 94 is linked in the longitudinal axis of the longitudinal arm as illustrated in FIG. 5. The holding arm 95 is variable as to its length and only its lower end is provided with symmetrical transverse legs extending toward both sides. Consequently, the connection by means of the connecting member 96 in the longitudinal axis of the longitudinal arm is provided on holding bar 3. The additionally necessary supports 97 for the upper ends of the two bobbin sleeves to be mounted are each individually mounted on holding

bars

3, 3" by means of a connecting member 98. Also in this instance an alignment of the upper supports 97 with the lower supports will, of course, be necessary.

The diagrammatically illustrated possibilities for constructing and mounting the creels according to the invention as well as the illustrated and described details clearly indicate the flexibility of the various embodiments and the possibility of adapting the same to the numerous situations occuring in practice. It is also to be understood that the individual parts described in connection with one embodiment may also be employed with other embodiments. Thus, for instance, the ball-shaped support 66 according to FIG. 6 may be replaced by a disc 22 according to FIG. 3, or instead of the connecting screws 13 with the running stud 14 of FIG. 2 there may also be employed a bearing stud similar to the studs 64' or'64"-according to FIG. 8. Such equivalent arrangements of details will be obvious to anyone skilled in the art after he has familiarized himself with the present in- 9 vention. Naturally, the employed rigid material according to the invention may consist of metal or other suitable materials while the cross sectional shapes may vary. However, the round cross sectional shape is preferred in view of the minimum possibility of collecting lint.

It will also be obvious that instead of the strand guide iii 59, a strand guiding bar of a heretofore known type may be employed. However, it is the very cooperation of the bobbin holder 4, 51 with the strand guides 10, 59 which results in a particularly favorable guiding of the fiber strands being withdrawn from the bobbins because the strand guide will be able to follow possible movements of the bobbin holder or bobbin to the same extent. At any rate, the bobbin holders according to the invention will over, heretofore known embodiments of bobbin holders, have the above mentioned important advantages which could not be obtained heretofore.

As will be evident from the above, the various embodiments according to the invention of the holding arm and the numerous possibilities of variation make possible to adapt the bobbin holder in the most favorable manner to the respectively employed bobbin size and to the conditions of the respective machine while a change to other bobbin sizes may easily be efiected by changing or exchanging a few parts only and by few operations. Above all, the bobbin holders according to the invention will avoid the drawbacks heretofore encountered with the heretofore known bobbin holders. In particular, a proper withdrawal of the fiber strand from the bobbins will be assured due to the pendulum-like adjustment of the bobbins to the respective pull so that no faulty drafting can occur.

it is, of course, to be understood that the present invention is, by no means, limited to the particular constructions shown in the drawings but also comprises any modifications within the scope of the appended claims.

What I claim is:

l. In combination for use in connection with spinning .machines, creel means, a bobbin holder including a longitudinal substantially rigid arm having an upper end portion and a lower end portion, at least one leg connected to at least the lower end portion of said arm and extending therefrom in a direction transverse thereto, bearing means supported by the free end of said one leg for supporting the lower end of a bobbin sleeve, and means connected to the upper end portion of said longitudinal arm and swingably suspended on said creel means.

2. In combination for use in connection with spinning machines, creel means, a bobbin holder including a longitudinal substantially rigid arm having an upper end portion and a lower end portion, a first leg connected to the lower end portion of said arm and extending therefrom in a direction transverse thereto, first bearing means supported by the free end of said first leg for supporting the lower end of a bobbin sleeve, a second leg connected to the upper end portion of said arm and extending therefrom in a direction transverse thereto and substantially parallel to said first leg second bearing means supported by the free end of said second leg for supporting the upper end of said bobbin sleeve, and means connected to the upper end portion of said longitudinal arm and swingably suspended on said creel means.

3. In combination for use in connection with spinning machines, creel means, a bobbin holder including a longitudinal substantially rigid arm having an upper end portion and a lower end portion, two legs connected to the lower end portion of said arm and respectively extending therefrom in opposite directions transverse to said arm, bearing means respectively supported by the free ends of said legs for respectively supporting the lower ends of two bobbin sleeves, and means connected to the upper end portion of said longitudinal arm and swingably suspended on said creel means.

4. in combination for use in connection with spinning machines, creel means, a bobbin holder including a longitudinal substantially rigid arm having an upper end portion and a lower end portion, a first group of two legs connected to the lower end portion of said arm and respectively extending therefrom in opposite directions and transverse to said arm, a first group of bearing means respectively supported by the free ends of said legs for respectively supporting the lower ends of a bobbin sleeve, a second group of two legs connected to the upper end portion of said arm and extending thererorn in opposite directions transverse to said arm, a second group of bearing means respectively supported by the free ends of said legs of said second group for respectively supporting the upper ends of said bobbin sleeve, and means connected to the upper end portion of said longitudinal arm and swingably suspended on said creel means.

5. A bobbin holder, especially for use in connection with spinning machines, which is adapted to be suspended on a creel for supporting bobbins, said holder including: a longitudinal substantially rigid arm having an upper end portion and a lower end portion, at least one leg connected to at least the lower end portion of said arm and extending therefrom in a direction transverse thereto, bearing means supported by the free end of said one leg for supporting the lower end of a bobbin sleeve, and means connected to said upper end portion for suspending said holder in pendulum-like manner on a creel.

6. A bobbin holder according to claim 5, in which said means for suspending said holder on a creel in pendulum-like manner is in alignment with the longitudinal axis of said longitudinal arm.

7. A bobbin holder according to claim 5, in which said means for suspending said holder on a creel in a pendulum-like manner is in alignment with the bearing means for supporting the lower end of a bobbin sleeve.

8. A bobbin holder, especially for use in connection with spinning machines, which is adapted to be suspended on a creel for supporting bobbins, said holder including: a longitudinal substantially rigid arrn having an upper end portion and a lower end portion, a first leg connected to the lower end portion of said arm and extending therefrom in a direction transverse thereto, first bearing means supported by the free end of said first leg for supporting the lower end of a bobbin sleeve, a second leg connected to the upper end portion of said arm and extending therefrom in a direction transverse thereto and substantially parallel to said first leg, second bearing means supported by the free end of said second leg for supporting the upper end of said bobbin sleeve, and suspension means connected to said second leg at a point between said longitudinal arm and said second bearing means for suspending said holder from a creel in a pendulum-like manner.

9. in a mounting system for bobbin holders, especially for use in connection with spinning machines: a creel having two holding bars arranged in spaced relationship and parallel to each other, a bobbin holder having a longitudinal substantially rigid arm with an upper end portion and a lower end portion, at least one leg connected to the lower end portion of said arm and extending therefrom in a direction transverse thereto, first suspension means forming an upward extension of said longi tudinal arm and suspended on one of said holding bars in a pendulum-like manner, first bearing means supported by the free end of said leg for supporting the lower end of a bobbin sleeve, second suspension means suspended on the other one of said holding bars in a pendulumlike manner, and second bearing means connected to said second suspension means for supporting the upper end of said bobbin sleeve.

10. A bobbin holder, especially for use in connection with spinning machines, which is adapted to be suspended on a creel for supporting bobbins, said holder including: a longitudinal substantially rigid arm having an upper end portion and a lower end portion and comprising two secant gen? 11 tions adjustably interconnected for selectively varying the overall length of .said holder, at least one leg connected to atlleast the lower end portion of said arm and extending therefrom in a direction transverse thereto, and bear-t ing means supported by the free end of said one leg for supporting the lower end of a bobbin sleeve.

11. A bobbin holder, especially for use in connection with spinning machines, which is adapted to be suspended on a creel for supporting bobbins, said holder including: a longitudinal substantially rigid arm having an upper end portion and a lower end portion, at least one leg connected to at least the lower end portion of said arm and extending therefrom in a direction transverse thereto, fiber strand and thread guiding means v-adjustably mounted on said longitudinal arm, and bearing means supported by the free end of said one leg for supporting the lower end of a bobbin sleeve.

12. A bobbin holder according .to claim 11, in which said guiding means comprises two supplementary members at least partially resilient and provided with interengaging teeth, the teeth of each member extending around said longitudinal arm by more than 180.

13.A bobbin holder, especially for use in connection with spinning machines, which is adapted to be suspended on a creel for supporting bobbins, said holder including: a longitudinal substantially rigid arm having an upper end portion and a lower end portion, at least one leg connected to at least the lower end portion of said arm and extending therefrom in a direction transverse thereto, bearing means supported by the free end of said one leg for supporting the lower end of a bobbin longitudinal substantial rigid arm having an upper end portion and a lower end portion, at least one leg connected to 'at least the lower end portion of said arm and extending therefrom in a direction transverse thereto, bearing means supported by the free end of said one leg for supporting the lower end of a bobbin sleeve, said bearing means being composed of a plurality of exchangeable elements exchangeable and replaceable in conformity with the respective dimensions of the respective bobbins to be supported, and means connected to the upper end portion of said longitudinal arm and disengageably and swingably suspendedon said creel means.

15. In combination for use in connection with spin- ,ning machines, creel means, a bobbin holderincludinga longitudinal substantially rigid arm having an upper end ,portion and a lower end portion, a first leg connected least one of said first and second bearing means being composed of a plurality of exchangeable elements exchangeable and replaceable in conformity with the respective dimensions of the respective bobbins to be supported, and means connected-to the upper end portion of said longitudinal arm and disengageably and swingably suspended on said creel means.

16. A bobbin holder according to claim 14, in which the bearingmeans for supporting the lower end of a bobbin sleeve comprises pivot means supported by said a one leg and also comprises cover means rotatably mountedon said pivot means.

17. A bobbin holder according to claim 15, in which said second bearing means comprises a stud and means connected to said stud for slidable engagement with the upper end of a bobbin sleeve.

18. In combination for use in connection with spinning machines: creel means, bobbin holder means comprising a longitudinal substantially rigid arm having an upper end portion and a lower end portion, at least one substantially rigid leg connected to the lower end portion of said arm and extending therefrom in a direction transverse thereto, at least one substantially rigid leg connectedto the upper end portion of said arm and extending therefrom in a direction transverse thereto, bearing means respectively supported ,by the free ends of said legs for rotatably supporting a bobbin sleeve in substantially vertical position, one of said bearing means including stationary stud means and a rotatable member pivotally engaged by saidlstud means for elastic engagement with one end of a bobbin sleeve, and means connected to the upper end portion of said longitudinal arm and swingably and detachably engaging said creel means.

References Qited in the tile of this patent FOREIGN PATENTS 444,177 Germany May 17, 1927 148,447 Switzerland Oct. 1, 1931 1,047,023 France July 15, 1953

Claims

1. IN COMBINATION FOR USE IN CONNECTION WITH SPINNING MACHINES, CREEL MEANS, A BOBBIN HOLDER INCLUDING A LONGITUDINAL SUBSTANTIALLY RIGID ARM HAVING AN UPPER END PORTION AND A LOWER END PORTION, AT LEAST ONE LEG CONNECTED TO AT LEAST THE LOWER END PORTION OF SAID ARM AND EXTENDING THEREFROM IN A DIRECTION TRANSVERSE THERETO, BEARING MEANS SUPPORTED BY THE FREE END OF SAID ONE LEG FOR SUPPORTING THE LOWER END OF A BOBBIN SLEEVE, AND MEANS CONNECTED TO THE UPPER END PORTION OF SAID LONGITUDINAL ARM AND SWINGABLY SUSPENDED ON SAID CREEL MEANS.