US3877659A - Bobbin hanger - Google Patents

Bobbin hanger Download PDF

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Publication number
US3877659A
US3877659A US373877A US37387773A US3877659A US 3877659 A US3877659 A US 3877659A US 373877 A US373877 A US 373877A US 37387773 A US37387773 A US 37387773A US 3877659 A US3877659 A US 3877659A
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United States
Prior art keywords
bobbin
hanger
movement relative
members
accordance
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Expired - Lifetime
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US373877A
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English (en)
Inventor
Toshiyasu Takata
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NTN Corp
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NTN Toyo Bearing Co Ltd
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/18—Supports for supply packages
    • D01H1/183—Overhead suspension devices

Definitions

  • Zenzaburo Tsukumo both of Osaka, japan [57] ABSTRACT [22] Filed; June 26, 1973 A bobbin hanger construction for mounting on a creel bar in a suspended state is provided which includes [21] Appl' 373877 upper means for mounting the upper end of the bob- 1 bin hanger to a creel for universal movement relative [30] Foreign Application Priority D t thereto, intermediate means connected at one end to June 29. 1972 Japan 47-65642 the upper mehhs for universal movement relative thereto, and lower means connected to the intermedi- 52 us. c1 242/1302; 242/1291 ate means verhmlly reciprocating rehhhhship 51 Int. Cl. i.
  • Such bobbin hanger consists of upper and lower members, but there are many problems about the engagement between these members and about the individual members themselves, forming a bottleneck in obtaining a yarn of superior quality. Therefore, improvements in the individual members and the piling up of individual improvements will certainly have an extremely great effect on yarn quality and operation, playing a major role in this project.
  • this type of bobbin hanger has to be suspended at the upper end thereof so as to be rotatable and swingable in all directions. Further, bobbins are inserted or extracted from the lower ends of the bobbin hangers. During use, the bobbins were in a condition in which they were easily forced to deflect. In that case, if the bobbins should be angularly attached or deflection should occur, it is desirable that they immediately swing back to their normal position. To this end. it is most effective to use a universal joint at the upper portion of the hanger and self-aligning balls at the lower portion.
  • the conventional type is provided with a thrust bearing using bearing balls at one of the connec tions.
  • the thrust bearing is exposed to ambient air incurring various inconveniences including deposition of cotton dust, formation of dew-drops and rust in the internal construction, consequently detracting from the performance of the bearing. This has a serious effect on yarn quality and textile operation.
  • the bobbin hanger upon pendulum movement, the bobbin hanger must be able to quickly return to the normal position through damped oscillation. With the conventional type, however, this problem has not been satisfactorily solved. It has been found that the cause underlies the fact that the upper member, which, in itself, should naturally be a two-component body, has been constructed in a unitary body. This has been the cause of ununiformity of roving tension. incorretncss of draft and uneveness of yarn.
  • the hanger can rotate too easily. it tends to turn excessively as a result of its inertial rotation. Consequently. as described above the tension on the roving being withdrawn becomes ununiform and incorrect draft takes place, forming the cause of uncvcness of yarn. In extreme cases, the roving breaks at the creel region.
  • FIG. 1 illustrating a conventional bobbin hanger.
  • the entire bobbin hanger B including a bobbin A is a unitary body. with the upper end articulated to the underside ofa hanger rail D by means of a universal joint C.
  • the hanger is deflected. the entire structure is oscillated in a single pendulum. If the overall length of the hanger is 1, then the period T is as follows.
  • the period T ofa pendulum is proportional to the root of the hanger length I. That the period T is great means that the resumption of normal position through damped oscillation is late, which accounts for the fact that the oscillation of the conventional hanger cannot be easily brought to a stop.
  • the system for attaching the hanger to the hanger rail is by attaching a bearing portion directly to the hanger rail, as described above. and the pivot portion is not necessarily set vertically and is liable to be subjected directly to violent external forces during bobbin operation.
  • the bearing portion since the bearing portion is not in a sealed condition, it is directly influenced by changes in the humidity in the room. In connection with the hanger rail, position and air conditioning. dew-drops are formed on the bearing portion when the dew point is reached. Further, due to this unsealed condition, air currents are created within the bobbin hanger by a pumping or similar action particularly at the time of mounting and dismounting of bobbins.
  • the conventional bobbin hanger is designed so that when a bobbin is inserted over the movable portion, a pair of locking members folded in the movable member are transversely unfolded to project in opposite directions, whereby said locking members are engaged with the shoulder portion of the bobbin, and that when the bobbin is detached, the locking members are automatically folded into the movable member in connection with the operation of detaching the bobbin from the movable portion.
  • this type of conventional bobbin hanger is designed to suspend a bobbin by two locking members, the support of the bobbin is effected at two points, so that the support of the bobbin becomes unstable and the center line of the hanger is not aligned with the center line of the bobbin. with the result that at the time of and during the withdrawal of the roving, the rotation of the bobbin becomes unsmooth or the bobbin executes an eccentric rotation or precessional movement. causing tension irregularity to the roving and damage to the inner surface of the suspension system of the hanger; all these lead to uneveness of yarn and breakage of roving.
  • the present invention provides a bobbin hanger for textile machinery, comprising an upper member, a lower member, a bar-like intermediate member for interconnecting said upper and lower members.
  • said upper member being swingably suspended from a hanger rail, the upper member and the upper end of the bar-like intermediate member being rotatably and swingably interconnected, the lower member and the lower end of the bar-like intermediate member being rotatably and swingably interconnected, three locking members installed near the lower end ofa movable portion installed in the said lower member and at places trisecting the circumference, said locking members being adapted to engage the shoulder portion of a bobbin at desired times, and a cylindrical member disposed between said upper and lower members serving to close the space therebetween and adapted to impart a required rotational resistance to the lower member.
  • upper and lower members E and F constituting the bobbin hanger B are interconnected by a bar-like intermediate member G and are adapted to be bendable at the respective connections. Even if the bobbin hanger is swung by external force, principally the upper member E along executes an interference oscillation in the manner of a pendulum as shown in FIG. 2, while the lower member F only slightly deflects to and fro in a nearly vertical condition.
  • the upper member E has a short length I, the period of the oscillation is short, and the weight ofa bobbin A and locking member H rollably installed in the movable portion of the lower member interfere with the upper member to effect extremely quick damping whereby the bobbin hanger B including the bobbin quickly returns to its normal position in a vertical line. Therefore, yarn breakage and incorrect draft can be excluded.
  • the lower member F is suspended from the upper member E through the intermediate member G in such a manner that it is somewhat restrained at the central region from rotation but is freely swingable, there is no possibility that the lower member F having the bobbin A mounted thereon is excessively rotated by the withdrawal of the roving during operation.
  • the withdrawing torque becomes a predetermined one and is maintained in the best condition, while the roving being withdrawn is always at an approximately constant tension.
  • annular member 1 adapted to close the space between the upper and lower members E and F is provided at the joint portion between the upper and lower members, there is no possibility of cotton dust entering the joint portion to adhere thereto and entry of air is also prevented. As a result, it is little influenced by temperature differences and there is no possibilty of dew-drops forming on the bearing portions. Therefore, it is possible to exclude the formation of rust, the adhesion of cotton fly and dirt and dust or the occurrence of other phenomena at said portion which can form the main cause of troubles.
  • the bobbin since the bobbin is supported at three points by the locking members H, the condition in which it is attached to the lower member F and particularly to the movable member J is extremely stabilized. Moreover, the alignment between the center lines of the hanger and bobbin assures that the bobbin rotates always smoothly without involving eccentric rotation or other incorrect rotation during withdrawal of roving, thereby completely excluding unevenness of yarn and breakage of roving.
  • the invention in a constructional aspect thereof, uses a simple combination wherein the lower peripheral surface of the movable portion G of the lower member H is provided with window portions and locking members are simply placedin the interior; among other things, it makes full use of a self-aligning property through an sophisticated application of the law of gravitation of the earth.
  • the concept of the present invention can be easily applied to the conventional bobbin hangers of this type, and bobbin hangers will be obtained which are simple in construction, to which it is easy to impart the required accuracy, over which the amount of seatter in manufacture can be reduced to the minimum, which are suitable for mass production and which are easy to handle.
  • FIG. 1 is an explanatory view showing the oscillating condition of the conventional bobbin hanger
  • FIG. 2 is an explanatory view showing the oscillating condition of the bobbin hanger of the present invention
  • FIGS. 3 and 4 are front views. in longitudinal section, of a bobbin hanger according to the invention.
  • FIG. 3 showing a condition in which the bobbin has been taken off.
  • FIG. 4 showing a condition in which a bobbin has been mounted:
  • FIGS. 5 and 6 are explanatory views showing the function of a clutch mechanism corresponding to the conditions of FIGS. 3 and 4, respectively. the views being in a developed form:
  • FIGS. 7 and 8 are views partially in section which show modifications of the annular member for sealing a bearing portion; and FIGS. 9 and 10 are views partially in section which show modifications of the bobbin locking member, FIG. 9 showing a condition in which the bobbin has been taken off.
  • FIG. 10 showing a condition in which a .bobbin has been mounted.
  • a hanger rail D is provided with openings or rail slots 1 for suspending bobbin hangers B at predetermined intervals of space.
  • the numeral 2 designates a bolt having a bulge 3 integral therewith having a spherical surface, said bolt being inserted at the upper end thereof into an opening 1 in the hanger rail D and fixed in position by nuts 4 and 5.
  • the bobbin hanger B comprises an upper member E suspended by the lower end of the bolt 2, an intermediate member G suspended by the lower end of said upper member E, and a lower member F suspended by the lower end of said intermediate member G, said members E, F and G being rotatably and swingably suspended.
  • the upper member E consists of a cylindrical member I0 of two-split construction having a space portion 7 grasping the bulge 3 formed on the lower end of the bolt and a space portion 9 grasping a bulge 8 formed on the upper end of the intermediate member G, and a cylindrical holder member 11 for holding said cylindrical member 10 of two-split construction in its face-to-face assembled condition, said holder member ll having a cover portion 12 integral therewith.
  • Opening 13 and 14in the cylindrical member 10 which open into the space portions 7 and 9, respectively, are larger in diameter than the corresponding shaft portions to be inserted therein.
  • the peripheral edges of the openings l3 and 14 into the space portions 7 and 9 terminate in spherical surfaces 15 and 16, respectively, In the suspended condition, the spherical surfaces 15 and 16 and the spherical surfaces of the bulges 3 and 8 abut against each other to allow smooth rotation and swing therebetween.
  • the upper member E may be rotatably and swingably suspended by fixedly securing the lower end of the bolt to the top surface of the upper member, forming a spherical bulge on the upper end of the bolt and fitting said spherical bulge in an opening formed in the guide rail D.
  • the intermediate member G is in the form of a bar-like member having bulges 8 and 17 at the opposite ends thereof, the upper bulge 8 being fitted in the lower space portion (9) of the upper member E. the lower bulge 17 being fitted in the space portion 18 of the lower member F through hearing means 19.
  • the lower member F is suspended by the bearing means 19 so that it can he smoothly rotated.
  • such portion be ofpivot bearing construction (not shown) without providing steel balls between the upper end bulge 8 and the periphery of the opening 14 in the lower space portion 9.
  • this is concerned with braking and the formation of dew-drops and rust.
  • the lower member F consists of a base portion 20, suspended by said intermediate member G. a movable portion J suspended by said base portion 20 so as to be vertically movable with respect to said base portion, three locking members H received in the lower portion of said movable portion j in such a manner that they can be projected and retracted, and a spindle member 21 adapted to cause said three locking members H to be projected and retracted in unison in connection with the upward and downward movement of the movable portion 1.
  • the base portion 20 consists of a top plate portion 22 having a space portion 18 in the upper central region thereof, and a cylindrical guide member 24 having a conical opening 23 in the lower region thereof, the upper end of said guide member being fixed to the outer periphery of the top plate portion.
  • the bearing means 19 to be installed in the space portion 18 of the top plate portion 22 is composed of a plurality of steel balls 25 and a bowl-like member 26 providing a surface on which said steel balls run.
  • the numeral 27 designates an opening for receiving the shaft portion of the intermediate member G. said opening being larger in diameter than said shaft portion.
  • the bearing means 19 is disposed on the bulge 17 of the intermediate member G.
  • the movable portion J consists of a bobbin insert portion 34 which, in the upper region thereof, has an open portion 29 fitted in the guide member 24 and having a conical surface 28 conforming to the conical opening 23 in the guide member 24, which, in the intermediate peripheral region thereof, has a step portion 32 against which the upper end shoulder 31 ofa bobbin will abut, and which has window portions 33 extending downwardly from said step portion 32 and located at places trisecting the peripheral surface near the lower end, the arrangement being such that the locking members H can be projected and retracted through said window portions 33.
  • the numeral 35 designates a spring compressed and disposed on the top plate portion 22 and in the interior of the movable member .I, the elastic force of said spring 35 serving to urge the conical surface 28 of the movable portion J into elastic abutment against the conical surface 23 of the guide member 24.
  • the locking member H may be in the form of a spherical member as shown in FIGS. 3 and 4 or in the form of an arm member 38 having a curved surface at the front end thereof as shown in FIGS. 9 and 10. Further, it is preferable that a spherical member be rotatably mounted on the arm member 38 at the front end thereof. I
  • the spindle member 21 is inserted in the movable portion J and has at the front end region thereof a large diameter portion adapted to project the spherical members 37 through the window portions 33 and a small diameter portion 40 adapted to retract the spherical members 37 into the window portions 33.
  • the condition shown in FIG. 4 is such that the spherical members 37 are partly projected through the peripheral surface of the bobbin insert portion 34 to lock the inner shoulder 42 of the axial bore 41 of the bobbin 30.
  • the diameter of the window portions 33 is such that the spherical members 37 are prevented from falling off therethrough.
  • the configuration of the window portions is such that when the small diameter portion 40 is positioned opposed to the window portions 33, the spherical members 37 in the window portions 33 roll by their own weights.
  • the numeral 43 designates a spring which keeps the spindle member 21 in an upwardly urged condition.
  • a clutch mechanism 44 for upwardly and downwardly moving the spindle member 21 in connection with the upward and downward of the movable member J as described above is as follows.
  • the clutch member 44 is composed of a shaft portion 45 fixed to the top plate portion 22, a cylindrical portion 46 fixed inside the movable portion J and a spindle member 21.
  • saw-tooth-like teeth 48 On the peripheral surface of the upper end of the spindle member 21 and at places quadrisecting the circumference, there are formed saw-tooth-like teeth 48 each having an inclined surface 47, said surfaces 47 being inclined in the same direction. Of four valleys defined by said four teeth, two opposed ones are formed with grooves 49 which extend vertically downward.
  • the shaft portion 45 opposed to the spindle member 21 is provided with teeth 51 on the peripheral surface of the'lower end thereof and at places bisecting the circumference. each of said teeth having an inclined surface 50 on the lateral surface thereof.
  • Such inclined surface 50 is provided with an vertically upwardly extending groove 52 in the intermediate region thereof. It is so arranged that when said grooves 49 and 52 are vertically aligned with each other, the inclined surfaces 47 and 50 of the opposed teeth 48 and 51 overlap each other with some clearance therebetween adjacent the tops thereof.
  • the cylindrical portion 46 is provided with vertically extending ridges 53 at two places on the inner surface, said ridges being adapted to engage the grooves 49 in the inner surface of the spindle member 21 and the grooves 52 in the inner surface of the shaft portion 45. Engagement between the grooves 52 and the ridges 53 enables the cylindrical portion to move axially with respect to the shaft portion 45, while engagement between the grooves 49 and the ridges 53 enables the spindle member 21 to move with respect to the cylindrical portion 46.
  • the ridges 53 are permanently engaged with the grooves 52.
  • the condition shown in FIG. 4 is such that the ridges 53 on the cylindrical portion 46 abut against the valleys of the spindle member 21 as shown in FIG. 6, while the condition shown in FIG. 3 is such that the ridges 46 on the cylindrical portion 46 are aligned with and fitted in the grooves 49 in the spindle member 21 as shown in FIG. 5.
  • annular member I Installed between the upper and lower members E and F to surround the intermediate member G is an annular member I which serves to seal the connection, particularly the bearing means 19.
  • the annular member I is in the form of a coiled spring 54 around which a soft material 55 such as a film sheet is stretched.
  • Such annular member may be in the form of a simple cylindrical member 50 as shown in FIG. 7.
  • the cylindrical member 56 is placed on the top surface of the lower member F. and the upper edge of the cylindrical member 56 is provided with lugs 57 each adapted to be engaged in a recess 58 cut in the outer periphery of the upper member E.
  • the C lindrical member 56 can be upwardly and downwardly moved along the outer periphery of the upper member E regardless of the rotation of the upper and lower members E and F.
  • the mass of the cylindrical member 56 it is possible to suppress the ex- Cessive rotation of the lower member F by the weight of said cylindrical member.
  • FIG. 8 shows another modification of the annular member I. wherein the upper outer periphery of the lower member F is provided with an annular step portion 59 on which an annular member 62 having a flange 61 around the lower edge thereof is placed with a spring 60 interposed therebetween to elastically urge the upper edge of the annular member 62 against the lower surface of the upper member E. achieving the same function and effect as the annular member described above.
  • the arm members 38 are mounted in grooves 64 located at places trisecting the peripheral surface of the large diameter portion 63 at the lower end of the spindle member 21, the base portions of said arm members being locked by a ring 65.
  • an upwardly directed conical member 66 Fixedly secured to the lower end of the bobbin insert portion 34 is an upwardly directed conical member 66 adapted to unfold said arm members 38.
  • the downward movement of the spindle member 2l causes the three arm members 38 to be unfolded and projected through the window portions 33 until they lock the bobbin 30, as shown in FIG. 10.
  • the upward movement of the spindle member 21 causes the unfolded arm members 38 to be folded and retracted as they are rubbed against the window portions, as shown in FIG. 9.
  • a bobbin hanger for mounting on a hanger rail comprising an upper member having opposed ends and means at one end for fixedly mounting same to a hanger rail for universal movement relative thereto, an intermediate member having means for operatively mounting same at one end to the other end of said upper member for universal movement relative thereto and a lower member having means for operatively connecting same at one end to the other end of said intermediate member for vertical movement relative thereto.
  • said lower member including laterally movable locking means at the lower end thereof for engagement with the internal shoulder portion of a bobbin and vertically rcciprocable actuating means for actuating said locking means to project or retract same laterally for engagement or disengagement with the shoulder portion of the bobbin.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Unwinding Of Filamentary Materials (AREA)
  • Chain Conveyers (AREA)
  • Springs (AREA)
US373877A 1972-06-29 1973-06-26 Bobbin hanger Expired - Lifetime US3877659A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6564272A JPS5410651B2 (it) 1972-06-29 1972-06-29

Publications (1)

Publication Number Publication Date
US3877659A true US3877659A (en) 1975-04-15

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US373877A Expired - Lifetime US3877659A (en) 1972-06-29 1973-06-26 Bobbin hanger

Country Status (7)

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US (1) US3877659A (it)
JP (1) JPS5410651B2 (it)
CH (1) CH565101A5 (it)
FR (1) FR2190708B1 (it)
GB (1) GB1418939A (it)
IN (1) IN140253B (it)
IT (1) IT986228B (it)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015797A (en) * 1974-11-09 1977-04-05 Ntn Toyo Bearing Company Ltd. Bobbin hanger
US4052021A (en) * 1976-01-17 1977-10-04 Ntn Toyo Bearing Co. Ltd. Bobbin hanger
US4463580A (en) * 1981-09-12 1984-08-07 Karl Mayer Textilmaschinenfabrik Gmbh Weft insertion magazine with continuous provision of weft thread for a warp knitting machine
US4511102A (en) * 1981-06-16 1985-04-16 Zenzaburo Tsukumo Bobbin holder
US5439185A (en) * 1991-05-21 1995-08-08 Zen Giken Co., Ltd. Bobbin holder
EP0926088A2 (en) * 1997-12-19 1999-06-30 Orlando Bergamini Device for supporting reels, skeins or cakes of yarn in spooling machines

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2381704A1 (fr) * 1977-02-23 1978-09-22 Noguera John Porte-bobines pour machines textiles

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1686102A (en) * 1919-09-11 1928-10-02 Edgar S Nethercutt Winder
US2873930A (en) * 1956-02-29 1959-02-17 Brunner Gottfried August Bobbin holder
US3512731A (en) * 1967-06-12 1970-05-19 Shinzo Kitamura Bobbin hanger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1686102A (en) * 1919-09-11 1928-10-02 Edgar S Nethercutt Winder
US2873930A (en) * 1956-02-29 1959-02-17 Brunner Gottfried August Bobbin holder
US3512731A (en) * 1967-06-12 1970-05-19 Shinzo Kitamura Bobbin hanger

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015797A (en) * 1974-11-09 1977-04-05 Ntn Toyo Bearing Company Ltd. Bobbin hanger
US4052021A (en) * 1976-01-17 1977-10-04 Ntn Toyo Bearing Co. Ltd. Bobbin hanger
US4511102A (en) * 1981-06-16 1985-04-16 Zenzaburo Tsukumo Bobbin holder
US4463580A (en) * 1981-09-12 1984-08-07 Karl Mayer Textilmaschinenfabrik Gmbh Weft insertion magazine with continuous provision of weft thread for a warp knitting machine
US5439185A (en) * 1991-05-21 1995-08-08 Zen Giken Co., Ltd. Bobbin holder
EP0926088A2 (en) * 1997-12-19 1999-06-30 Orlando Bergamini Device for supporting reels, skeins or cakes of yarn in spooling machines
EP0926088A3 (en) * 1997-12-19 2000-10-25 Orlando Bergamini Device for supporting reels, skeins or cakes of yarn in spooling machines

Also Published As

Publication number Publication date
IN140253B (it) 1976-10-02
GB1418939A (en) 1975-12-24
IT986228B (it) 1975-01-20
FR2190708B1 (it) 1974-07-05
JPS5410651B2 (it) 1979-05-09
DE2333223B2 (de) 1977-01-20
FR2190708A1 (it) 1974-02-01
DE2333223A1 (de) 1974-01-17
JPS4925232A (it) 1974-03-06
CH565101A5 (it) 1975-08-15

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