US3856231A - Bobbin holder - Google Patents

Bobbin holder Download PDF

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Publication number
US3856231A
US3856231A US00414130A US41413073A US3856231A US 3856231 A US3856231 A US 3856231A US 00414130 A US00414130 A US 00414130A US 41413073 A US41413073 A US 41413073A US 3856231 A US3856231 A US 3856231A
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United States
Prior art keywords
bobbin
shell
rotatable assembly
pendant
bobbin holder
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00414130A
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English (en)
Inventor
R Whitehead
A Whitehead
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to US00414130A priority Critical patent/US3856231A/en
Priority to GB4623674A priority patent/GB1448314A/en
Priority to IT29235/74A priority patent/IT1025535B/it
Application granted granted Critical
Publication of US3856231A publication Critical patent/US3856231A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

  • a bobbin holder for rotatably fastening bobbins to bobbin creels.
  • the bobbin holder comprises a rotatable assembly including a shell insertable into a recess in a bobbin to be held, bobbin catch means supported by the shell, and catch actuating means for extending and retracting the catch means to and from the exterior of the shell to hold and release a bobbin positioned about the shell.
  • the bobbin holder further comprises a stationary assembly including a brake shoe, first spring means biasing the brake shoe against the rotatable assembly, frictional engagement means disposed adjacent the rotatable assembly, and second spring means biasing the frictional engagement means into contact with the rotatable assembly in response to the weight of a bobbin held on the rotatable assembly exceeding a preselected magnitude and biasing the frictional engagement means out of engagement with the rotatable assembly in response to the weight of a bobbin held on the rotatable assembly failing to exceed the preselected magnitude.
  • the rotatable assembly shell is hollow and includes tubular walls defining apertures through which catch means may extend and an interior guide surface extending between the apertures and defining two indentation stops.
  • the catch means is provided by an elongated pawl slidably disposed within the hollow shell with two pawl ends alternatively projectable out of the shell through the shell apertures and with a projecting pawl detent alternatively catchable in the two guide surface indentation stops.
  • a spring loaded plunger is also disposed within the shell biasing the pawl projecting detent towards at least one of the guide surface indentation stops.
  • bobbin holders used in rotatably fastening yarn and roving bobbins to bobbin creels typically comprise a hollow shell extending downwardly from a pen dant secured to overhanging creel structure.
  • the shell is shaped to extend into an axial recess formed within and communicating with the top of the bobbin.
  • Two or more pawls are pivotally mounted within the shell to alternatively extend to and from the exterior of the shell into contact with an interior surface of the bobbin to alternatively hold and release the bobbin from about the bobbin holder shell. Examples of such bobbin holders are disclosed in U. S. Pat. Nos. 3,400,899 and 3,389,876.
  • the brakes were primarily in the form of exterior gravity types comprising pendant arms pivoted axially above the bobbin with the lower end thereof in contact with the peripheral surface of the roving or yarn wound on the bobbin.
  • the bobbin holder supported relatively large amounts of roving
  • such gravity brakes extended laterally outwardly from the axis of the holders to form a relatively large acute angle with the coincident bobbin and bobbin holder axes. This lateral extension caused a substantial portion of the weight of the pendant gravity brake to be applied against the roving.
  • these holders have also experienced problems with regard to their means of reliably catching and releasably holding bobbins about the bobbin holders.
  • these catch means today typically include one or more pawls which, upon actuation, alternatively project out of and recede into the bobbin holder shells about which the bobbins are held.
  • Another object of the invention is to provide bobbin holders having brake means providing drag which varies in relation with the weight of a bobbin supported on the bobbin holder so as to provide substantially constant tension in yarn or roving being spun off of the bobbin.
  • Yet another object of the invention is to provide bobbin holders having improved means for releasably holding and releasing bobbins supported thereon.
  • a bobbin holder for rotatably fastening bobbins to bobbin creels.
  • the bobbin holder comprises a rotatable assembly including a shell insertable into a recess in a bobbin to be held, bobbin catch means supported by the shell, and catch actuating means for alternatively extending and retracting at least a portion of the catch means to and from the exterior of the shell to alternatively catch and release a bobbin positioned about the shell.
  • the bobbin holder further comprises a stationary assembly including a brake shoe, first spring means biasing the brake shoe against the rotatable assembly, frictional engagement means disposed adjacent the rotatable assembly, and second spring means biasing the frictional engagement means into contact with the rotatable assembly in response to the weight of a bobbin held on the rotatable assembly exceeding a preselected magnitude and biasing the frictional engagement means out of engagement with the rotatable assembly in response to the weight of a bobbin held on the rotatable assembly failing to exceed the preselected magnitude.
  • a bobbin holder for rotatably fastening bobbins to bobbin creels and comprising a pendant, a cover mounted about a lower portion of the pendant, and a ball bearing carried by the pendant within the cover and including a first annular bearing race rotatable about the pendant.
  • the shell is mounted to the first bearing race and is insertable into the recess in a bobbin to be held.
  • An annular brake shoe is disposed upon the first bearing race.
  • a compression spring is compressibly mounted between the cover and the brake shoe biasing the brake shoe against the first bearing race.
  • a bobbin holder for rotatably fastening bobbins to bobbin creels and comprising a hollow shell insertable into a recess in a bobbin to be held.
  • the hollow shell includes tubular walls defining apertures and an interior guide surface extending between the apertures and defining indentation stops.
  • An elongated pawl is slidably disposed within a hollow shell. The pawl has two ends alternatively projectable out of the shell through the apertures and a projecting detent alternatively catchable in the guide surface indentation stops.
  • a spring loaded plunger is also provided biasing the pawl projecting detent downwardly towards at least one of the guide surface indentation stops.
  • FIG. 1 is a perspective view of a bobbin holder embodying principles of the present invention in one form
  • FIG. 2 is an exploded view in perspective of a portion of the bobbin holder shown in FIG. 1;
  • FIG. 3 is an elevational view in cross section of the bobbin holder depicted in FIG. 1;
  • FIG. 4 is an elevational view in cross section of a portion of the bobbin holder shown in FIG. 3 taken along plane 44;
  • FIG. 5 is an elevational view in cross section of a portion of the bobbin holder shown in FIG. 3 taken along plane 5-5;
  • FIGS. 6-8 are elevational views in cross section of a portion of the bobbin holder shown in FIG. 3 illustrating an operative sequence of events in actuating the bobbin holder catch means;
  • FIG. 9 is a graph comparatively illustrating the braking effected by bobbin holders embodying the present invention and that of the prior art.
  • An actuation collar 4 is slidably disposed about the shell and prevented from sliding completely thereoff by compression ring 2.
  • Near the upper ends of mating shell halves l and l are formed two half disc-shaped inwardly extending walls 5 which abut one another to provide separation between an upper cavity 6 and a lower cavity 7.
  • a rotatable bearing race 9 To the uppermost end 8 of the mating shell halves l and l is rigidly mounted a rotatable bearing race 9. Between the rotatable race 9 and a relatively stationery race 11 is disposed a set of roller balls 12. Fitted snugly within an indenture in the rotatable race 9 is a hardened bearing lock 13.
  • the stationery bearing race 11 accepts a pendant stud 14 which is threaded at one end and/at the other contains a head with a plurality of semi-conical protrusions 15.
  • a brake spring 16 containing a hole at its center formed to mesh with the semi-conical protrusions 15 at the head of stud 14 is supported on the stud head.
  • the brake spring contains a set of leaves 17 extending upwardly against rotatable friction washer 21 so as to force the washer against the hardened steel bearing lock 13 under selected operating conditions. If desired, washer 21 may be omitted. Where used it may be formed of a soft plastic material such as acetal polymer.
  • Encircling stud 14 and resting on the top surface of brake spring 16 is compression spring 18.
  • the upper end of the compression spring is compressed against bearing race 11 so as to prevent contact of bearing lock 13 with leaves 17 of brake spring 16 or washer 21 except under selected operating conditions as hereinafter explained.
  • Threaded nut 19 is screwed the entire length of the threads on stud l4 and jammed against the bottom root of the thread so as to secure brake spring 16, compression spring 18 and the ball bearing in working proximity.
  • compression spring 18 compresses sufficiently to cause leaves 17 of brake spring 16 to force washer 21 into contact with the hardened steel bearing lock 13 thereby applying frictional resistance to the rotation of the rotatable bearing race 9 and shell.
  • Compression spring 16 is sized in this particular embodiment so that complete compression is obtained at about 3 lbs. of bobbin weight.
  • curve A depicts the varying tension provided by a typical gravity type bobbin brake of the prior art.
  • Brake shoe 20 is generally annular being bellshaped at its lower end and tapering inwardly thence forming a cylindrical vertical flange at its upper end.
  • the bell-shaped lower end contacts the upper chamfered edge of rotational race 9 so as to form a dust and lint seal for the lower bearing cavity and yet permit angular displacement of the bobbin holder shell.
  • the cylindrical vertical flange at the upper end of the brake shoe fits circumferentially outside the formed protrusion 23 extending downwardly from the top of dustcap 24. This protrusion is further formed so as to accept hex nut 19.
  • Helical spring 25 is tapered so that its lower smaller end is slightly larger than the cylindrical vertical flange of the brake shoe and its upper, larger end is slightly smaller than the inside of the dustcap.
  • the dustcap has a central hole in its top surface through which the threaded portion of stud 14 passes.
  • the bobbin holder catch mechanism is seen to include an actuator arm slidably disposed within shell half 1 having longitudinal slots 1A and IE to accept ears 30A and 30B of the actuator arm.
  • the shell half also has a slot 1C near its lower end to accept the foot 30C end of the actuator arm 30.
  • Bobbing shell half 1' contains an idler arm and a single slot 1 'C to accept the foot 40C of the idler arm.
  • actuator arm 30 In the bobbin engaged position shown in FIG. 5, actuator arm 30 is forced to its lowest vertical position by means of a plunger 50 and helical spring 51. In this engaged position the heel 31 of the actuator arm is detented with a protruding stop 53! formed in a guide surface within shell half 1. Similarly the heel 41 of idler 40 is engaged with protrusion 52 of shell half 1'. The foot 30C of the actuator and the foot 40C of the idler protrudes outside the bobbin shell at slots 1C and l'C respectively. The right ear 30B of the actuator members protrudes outsides the shell at 1B.
  • the catch mechanism operating collar 4 is slid upwardly to engage ear 30B.
  • the actuator arm 30 is moved vertically upward causing point 32 on the actuator arm to come in contact with camming point 57 on the actuator shell.
  • Operating collar 4 at this point prohibits movement of the ear 30A of the actuator arm so that the foot end rotates toward the inside of the shell due to bias provided by plunger 50 and spring 51 acting against ear 30B lifted by the collar.
  • the movement of the foot 30C is guided by the formed interior of the bobbin shell.
  • Idler arm 40 which is rotatably connected to the actuator arm 30 by means of a lug 42 on the idler arm fitted into a hole centered at the top of actuator arm, is rotated inwardly to be completely contained within the shell by reason of the force applied by plunger 50 on the top sloping edge of the idler arm as shown in FIG. 7.
  • a bobbin holder for rotatably fastening yarn bobbins to a bobbin creel comprising:
  • a rotatable assembly including a shell insertable into a recess in a bobbin to be held, bobbin catch means supported by said shell, and catch actuating means for extending and retracting at least a portion of said catch means to and from the exterior of said shell to catch and release a bobbin positioned about said shell;
  • a stationary assembly including a brake shoe, first spring means biasing said brake shoe against said rotatable assembly, frictional engagement means disposed adjacent said rotatable assembly, and second spring means biasing said frictional engagement means into contact with said rotatable assembly in response to the weight of a bobbin held on said rotatable assembly exceeding a preselected magnitude and biasing said frictional engagement means out of engagement with said rotatable assembly in response to the weight of a bobbin held on said rotatable assembly failing to exceed said preselected magnitude.
  • a bobbin holder for rotatably fastening yarn bobbins to a bobbin creel comprising:
  • catch actuating means for extending and retracting said catch means to and from the exterior of said shell
  • a ball bearing having a rotatable race mounted to said shell and a relatively stationary race supported by said pendant;
  • frictional engagement means supported on said pendant to brake said shell in response to compression of preselected magnitude of said spring.
  • a bobbin holder in accordance with claim 4 wherein said pendant includes a stud having a head; and wherein said frictional engagement means includes a disc supported on said stud head.
  • a bobbin holder for rotatably fastening yarn bobbins to a bobbin creel comprising:
  • a ball bearing carried by said pendant within said cover and including a first annular bearing race adapted to rotate about said pendant;
  • a shell mounted to said first bearing race and insertable into a recess in a bobbin to be held;
  • a first compression spring compressibly mounted between said cover and said brake shoe thereby biasing said brake shoe against said first bearing race.
  • a bobbin holder in accordance with claim 7 wherein said bearing includes a second annular bearing race and a set of balls disposed between said first and second annular bearing, and wherein said bobbin holder further comprises a second compression spring compressibly mounted between said pendant and said second bearing race.
  • a bobbin holder in accordance with claim 8 comprising an annular set of leaf springs mounted to said pendant to engage said first bearing race when said second compression spring is compressed a predetermined distance.
  • a bobbin holder for rotatably fastening yarn bobbins to a bobbin creel comprising:
  • a hollow shell insertable into a recess in a bobbin to be held and including tubular walls defining apertures through which pawls may extend, and an interior guide surface extending between the apertures and defining two indentation stops;
  • a spring loaded plunger biasing said pawl projecting detent towards at least one of said guide surface indentation stops.
  • a bobbin holder in accordance with claim 10 comprising a second elongated pawl pivoted to said elongated pawl.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Unwinding Of Filamentary Materials (AREA)
US00414130A 1973-11-08 1973-11-08 Bobbin holder Expired - Lifetime US3856231A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US00414130A US3856231A (en) 1973-11-08 1973-11-08 Bobbin holder
GB4623674A GB1448314A (en) 1973-11-08 1974-10-25 Bobbin holder
IT29235/74A IT1025535B (it) 1973-11-08 1974-11-08 Portafobine perfez onato

Applications Claiming Priority (1)

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US00414130A US3856231A (en) 1973-11-08 1973-11-08 Bobbin holder

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US3856231A true US3856231A (en) 1974-12-24

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US00414130A Expired - Lifetime US3856231A (en) 1973-11-08 1973-11-08 Bobbin holder

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GB (1) GB1448314A (it)
IT (1) IT1025535B (it)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2331503A1 (fr) * 1975-11-11 1977-06-10 Kitamura Shinzo Dispositif de suspension d'un support de bobine, notamment pour des machines de filatures
US4919363A (en) * 1989-08-22 1990-04-24 Yoji Kitamura Bobbin hanger
EP0547712A3 (en) * 1991-12-19 1993-07-21 SAVIO S.p.A. Rotatable suspended bobbin holder with adjustable and settable braking
WO2006025073A1 (en) * 2004-09-03 2006-03-09 Titan Paints & Chemicals Limited Rotating bobbin holder
DE102004057036A1 (de) * 2004-11-25 2006-06-01 Maschinenfabrik Rieter Ag Vorrichtung zum Halten einer Spule
CN102433617A (zh) * 2011-05-27 2012-05-02 无锡市求实纺织专件有限公司 自动恒定引纱张力的粗砂系列吊锭
CN104746187A (zh) * 2015-04-20 2015-07-01 江阴市通隆纺织机械有限公司 磁悬浮自动恒定引纱张力的粗纱系列吊锭

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3389876A (en) * 1965-07-30 1968-06-25 Southern Res & Engineering Com Bobbin holder with wedge member
US3400899A (en) * 1966-05-13 1968-09-10 Tytgath Georges Bobbin holder for fastening yarn bobbins to the bobbin creel of contents to be spun
US3565364A (en) * 1968-10-03 1971-02-23 Naniwa Machinery Industry Co L Bobbin hanger for spinning machines
US3625452A (en) * 1969-07-09 1971-12-07 Casablancas Ltd Holders for bobbins in spinning and preparatory machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3389876A (en) * 1965-07-30 1968-06-25 Southern Res & Engineering Com Bobbin holder with wedge member
US3400899A (en) * 1966-05-13 1968-09-10 Tytgath Georges Bobbin holder for fastening yarn bobbins to the bobbin creel of contents to be spun
US3565364A (en) * 1968-10-03 1971-02-23 Naniwa Machinery Industry Co L Bobbin hanger for spinning machines
US3625452A (en) * 1969-07-09 1971-12-07 Casablancas Ltd Holders for bobbins in spinning and preparatory machines

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2331503A1 (fr) * 1975-11-11 1977-06-10 Kitamura Shinzo Dispositif de suspension d'un support de bobine, notamment pour des machines de filatures
US4919363A (en) * 1989-08-22 1990-04-24 Yoji Kitamura Bobbin hanger
EP0547712A3 (en) * 1991-12-19 1993-07-21 SAVIO S.p.A. Rotatable suspended bobbin holder with adjustable and settable braking
WO2006025073A1 (en) * 2004-09-03 2006-03-09 Titan Paints & Chemicals Limited Rotating bobbin holder
JP2007534852A (ja) * 2004-09-03 2007-11-29 タイタン ペインツ アンド ケミカルズ リミテッド 回転ボビンホルダ
DE102004057036A1 (de) * 2004-11-25 2006-06-01 Maschinenfabrik Rieter Ag Vorrichtung zum Halten einer Spule
CN102433617A (zh) * 2011-05-27 2012-05-02 无锡市求实纺织专件有限公司 自动恒定引纱张力的粗砂系列吊锭
CN104746187A (zh) * 2015-04-20 2015-07-01 江阴市通隆纺织机械有限公司 磁悬浮自动恒定引纱张力的粗纱系列吊锭

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Publication number Publication date
IT1025535B (it) 1978-08-30
GB1448314A (en) 1976-09-02

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