US3734285A - Attachment for yarn apparatus for automatically forming a fisherman knot or the like - Google Patents

Attachment for yarn apparatus for automatically forming a fisherman knot or the like Download PDF

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Publication number
US3734285A
US3734285A US00227997A US3734285DA US3734285A US 3734285 A US3734285 A US 3734285A US 00227997 A US00227997 A US 00227997A US 3734285D A US3734285D A US 3734285DA US 3734285 A US3734285 A US 3734285A
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United States
Prior art keywords
attachment
yarn
rod
shaped lever
pair
Prior art date
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Expired - Lifetime
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US00227997A
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English (en)
Inventor
P Messa
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Individual
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Individual
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Publication of US3734285A publication Critical patent/US3734285A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
    • B65H69/04—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by knotting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to yarn apparatus in general and to attachments, in particular, for automatically forming the so-called Fisherman Knot or the like.
  • a rod which is capable of reciprocal vertical displacements and which cooperates with a fixed angle plate attached to the supporting member of the yarn-spreading element of the attachment to block the two yarns at the termination of the Knot-forming operation and to sever these yarns, even by tearing action, in the event that they are not clearly cut by the scissors element of the attachment.
  • This rod is actuated by a suitably provided link mechanism controlled by the yarn apparatus itself. Consequently, the Knot-forming attachments of the prior art are not fully autonomous and independent in their work, but are quite dependent on the apparatus to which they are applied and attached.
  • the main object of the present invention to provide an automatic Knot-forming attachment for making the so-called Fisherman Knot, which overcomes the disadvantages of the conventional attachments mentioned hereinabove and, especially, eliminates or at least substantially reduces the need for frequent, accurate cleaning of the critical members thereof, namely, the elements which control the levers wall or cover thereof, so as to confer to the attachment a closed configuration, wherein the conventional upper opening is eliminated.
  • the possibility of dust particles to enter the inner works of the attachment, thus damaging the rotating elements thereof, is fully obviated.
  • Knot-forming attachment of the invention resides in that the vertical rod which blocks the yarns at the termination of the Knotforming operation, is actuated by a L-shaped lever, pivoting about its intermediate portion and engaged (by a cam provided on the rotating drum) to the attachments cams, so as to determine the angular displacements of the L-shaped lever in correspondence with the reciprocal vertical displacements of the rod and in cooperation with the movements of the scissors elements of the attachment.
  • the blocking action of the rod upon the yarns, in cooperation with the fixed angle plate attached to the yarn-spreading members support, is preferably offset with respect to the phase of severance of the yarns by the scissors elements. This is so provided, because it is desirable to intervene in the severance of the yarns, should there be an irregularity in the scissors-cutting operation.
  • FIG. 1 is a perspective view of the assembled attachment of the invention
  • FIG. 2 is a top view of FIG. 1;
  • FIG. 3 is a vertical, partly-sectional, view taken along the lines A-A;
  • FIG. 4 is a vertical, sectional view taken along the lines B-B.
  • the Knot-forming attachment of the present invention comprises two scissors-pincers groups 9 which serve the purpose of taking, tying and severing the yarns.
  • the yarn-spreading levers 10, which act upon the yarns during the Knot-forming phase of the operation, are pivotably located at 11 on the outside of the body 8 of the attachment, specifically, on the frontal wall 12 thereof (see FIGS. 1 and 3).
  • the two upper terminals of these levers are, therefore, positioned and guided within an upper aperture 13 provided in this frontal wall.
  • the control means for the levers 10 are conventional and do not form part of the invention per se. This control and actuation of the levers is efiected by the cam-drum 14 in cooperation with two other levers (not shown) located on the inner surface of the frontal wall 12 and connected to the pivots of the levers 10.
  • the attachment of the invention comprises, further, a vertical rod 15 guided by screw pins 16 along the inner surface of the rear wall 8' of the body 8.
  • the screw pins 16 are seated within the respective slots 17 provided in the rod.
  • the rod 15 protrudes from the upper portion of the body 8 and has its upper terminal 18 bevelled.
  • the rod cooperates, in operation, with a fixed angle plate 19 which is rigidly connected to the support member 19' of the yarn-spreading element of the attachment.
  • an L-shaped lever 20 which is pivoting about a pin 21 located on the rear wall 8' of the body 8.
  • the upper extremity of lever 20 is provided with a slot 22 through which passes a pin 23 fixedly attached to the rod 15.
  • This arrangement permits the rod to effect the necessary displacementsv
  • the lower extremity of the lever 20 instead, engages a spring 24 and, intermediate the two extremities of lever 20, spaced from the pin 21, there is provided mounted on the lever 20 a pin or contact roller 26 which is actuated by a cam 27 provided, preferably, on the head of drum 14 (see FIGS. 3 and 4).
  • the cam 27 determines the angular displacement of the L-shaped lever 20, acting against spring 24.
  • the rod 15 moves vertically to act, in cooperation with the rigid angle plate 19, upon the yams to be blocked.
  • the blocking rod 15 acts in cooperation with the scissors-pincers elements 9 of the attachment, so that the rod 15 becomes displaced downwardly at the beginning of the Knot-forming operation, where it remains for a predetermined angular rotation of elements 9 in order not to engage the yarns.
  • the rod 15 is displaced upwardly to block (in the event that the yarns are not severed) the yarns for another predetermined angular rotation of elements 9, before the latter release the yarns knotted and severed.
  • cam 27 which controls the blocking rod 15 is so constructed and shaped as to determine the intervention by the rod after the yarns are severed, but prior to the release of the yarns by the pincers elements.
  • Attachment for yarn apparatus for automatically forming fisherman knots which comprises: a body having a frontal wall, a rear wall and an aperture in the upper part of said frontal wall; a pair of scissors-pincers units positioned within said body; a pair of yarnspreading levers pivotably connected to the outer surface of said frontal wall and protruding through said aperture; a yarn-blocking rod capable of reciprocal vertical displacement and connected to the inner surface of said rear wall; an L-shaped lever having one extremity thereof connected to said rod at a point inter-mediate its extremities; a pin mounted on said L-shaped lever at a point intermediate its extremities to control the vertical displacements of said rod; a spring connected to said L-shaped lever at the extremity opposite said one extremity thereof; and rotating means for predeterminedly effect an angular displacement of said L- shaped lever and, concurrently, a vertical displacement of said rod.
  • said yarnblocking rod is provided with a pair of slots for passage therethrough of a pair of pins, said pins being attached to the inner surface of said rear wall; wherein said rod is connected to said L-shaped lever by means of a pinslot arrangement; and wherein said pin mounted on said L-shaped lever is a rolling pin.

Landscapes

  • Basic Packing Technique (AREA)
  • Binders And Loading Units For Sheaves (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US00227997A 1971-03-25 1972-02-22 Attachment for yarn apparatus for automatically forming a fisherman knot or the like Expired - Lifetime US3734285A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT512671 1971-03-25

Publications (1)

Publication Number Publication Date
US3734285A true US3734285A (en) 1973-05-22

Family

ID=11117987

Family Applications (1)

Application Number Title Priority Date Filing Date
US00227997A Expired - Lifetime US3734285A (en) 1971-03-25 1972-02-22 Attachment for yarn apparatus for automatically forming a fisherman knot or the like

Country Status (5)

Country Link
US (1) US3734285A (de)
JP (1) JPS5424029B1 (de)
DE (1) DE2212338C3 (de)
GB (1) GB1367395A (de)
SU (1) SU445201A3 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838874A (en) * 1972-07-24 1974-10-01 P Messa Automatic thread-knotting device
US3861725A (en) * 1973-06-08 1975-01-21 Mesdan Di Messa Pietro Automatic knot-forming machine for the formation of the fisher{3 s knot
DE2647118A1 (de) * 1975-10-20 1977-04-28 Kurashiki Boseki Kk Verfahren und vorrichtung zur bestimmung der haeufigkeit von garnspleissungen in einer automatischen spinnmaschine
US4105228A (en) * 1976-11-03 1978-08-08 Mesdan S.P.A Automatic knot-forming machine for the formation of the fisherman's knot
US4401328A (en) * 1981-01-26 1983-08-30 Matsushita Electric Industrial Co., Ltd. Electrically operated fishline tier
US9185894B1 (en) * 2015-05-12 2015-11-17 Abdulrahman KH. Almubaelesh Automatic fish hook tying device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1103338B (it) * 1978-07-07 1985-10-14 Mesdan Spa Annodatore automatico di filati perfezionato particolarmente per la formazione del modo cosiddetto da tessitore

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166346A (en) * 1962-05-12 1965-01-19 Wildt Mellor Bromley Ltd Knotter for fisherman's knots in the textile industry
US3298726A (en) * 1965-02-25 1967-01-17 Leesona Corp Knotter
US3544144A (en) * 1967-12-09 1970-12-01 Luciano Savio Thread knotting apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166346A (en) * 1962-05-12 1965-01-19 Wildt Mellor Bromley Ltd Knotter for fisherman's knots in the textile industry
US3298726A (en) * 1965-02-25 1967-01-17 Leesona Corp Knotter
US3544144A (en) * 1967-12-09 1970-12-01 Luciano Savio Thread knotting apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838874A (en) * 1972-07-24 1974-10-01 P Messa Automatic thread-knotting device
US3861725A (en) * 1973-06-08 1975-01-21 Mesdan Di Messa Pietro Automatic knot-forming machine for the formation of the fisher{3 s knot
DE2647118A1 (de) * 1975-10-20 1977-04-28 Kurashiki Boseki Kk Verfahren und vorrichtung zur bestimmung der haeufigkeit von garnspleissungen in einer automatischen spinnmaschine
US4105228A (en) * 1976-11-03 1978-08-08 Mesdan S.P.A Automatic knot-forming machine for the formation of the fisherman's knot
US4401328A (en) * 1981-01-26 1983-08-30 Matsushita Electric Industrial Co., Ltd. Electrically operated fishline tier
US9185894B1 (en) * 2015-05-12 2015-11-17 Abdulrahman KH. Almubaelesh Automatic fish hook tying device

Also Published As

Publication number Publication date
DE2212338B2 (de) 1981-05-21
GB1367395A (en) 1974-09-18
DE2212338A1 (de) 1972-10-05
SU445201A3 (ru) 1974-09-30
JPS5424029B1 (de) 1979-08-17
DE2212338C3 (de) 1981-12-17

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