EP0135074B1 - Stangenförmige Platine für eine Jacquardmaschine und damit ausgerüstete Maschine - Google Patents

Stangenförmige Platine für eine Jacquardmaschine und damit ausgerüstete Maschine Download PDF

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Publication number
EP0135074B1
EP0135074B1 EP84108929A EP84108929A EP0135074B1 EP 0135074 B1 EP0135074 B1 EP 0135074B1 EP 84108929 A EP84108929 A EP 84108929A EP 84108929 A EP84108929 A EP 84108929A EP 0135074 B1 EP0135074 B1 EP 0135074B1
Authority
EP
European Patent Office
Prior art keywords
hook
nibs
hooks
single rod
teeth
Prior art date
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
Application number
EP84108929A
Other languages
English (en)
French (fr)
Other versions
EP0135074A2 (de
EP0135074A3 (en
Inventor
Olivo Epis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fimtessile Fabbrica Italiana Macchinario Tessile SpA
Original Assignee
Fimtessile Fabbrica Italiana Macchinario Tessile SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fimtessile Fabbrica Italiana Macchinario Tessile SpA filed Critical Fimtessile Fabbrica Italiana Macchinario Tessile SpA
Priority to AT84108929T priority Critical patent/ATE30926T1/de
Publication of EP0135074A2 publication Critical patent/EP0135074A2/de
Publication of EP0135074A3 publication Critical patent/EP0135074A3/en
Application granted granted Critical
Publication of EP0135074B1 publication Critical patent/EP0135074B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/06—Double-lift jacquards
    • D03C3/08—Double-lift jacquards of open-shed type

Definitions

  • This invention relates to open-shed, double-lift weave machines of the type comprising two grippers of opposing motion and a single rod hook.
  • One of the most known versions uses a cylindrical rod hook with two nibs applied angularly offset by about 90° from each other and at different heights.
  • This method requires particularly strong hook return members (usually springs), because besides returning the hook they must also cause it to rotate on becoming engaged by the gripper blades, and the greater load applied causes greater wear of all the hooks under movement.
  • the two upper nibs applied at different heights require a hook which is longer in the part which projects from the needle guides, resulting in greater flexibility and sensitivity to vibration, thus making it more difficult for the hook to become engaged by the blades.
  • Another version shown e.g. in DE-AS-2846793 uses a hook with a rod of rectangular cross-section and nibs applied on two opposing sides.
  • the hook in order to prevent simultaneous engagement by the two mobile grippers, the hook is made to bend laterally, by the effect of the suitably increased hook return force.
  • the object of the present invention is to provide a jacquard machine with a single rod hook of very compact form which is partly controlled positively in order to avoid the blades lying opposite those which engage it, so as to obviate the drawbacks of the previously known methods.
  • a hook for a jacquard machine characterised in that the two upper nibs are in the form of the two teeth, with their facing surfaces inclined, of a single bifurcated projecting appendix in which they join together at the same height.
  • the inclined surface of the teeth can be of variable inclination and/or of curved profile.
  • said projecting appendix of which the two teeth form the upper nibs of the hook is disposed on said hook in a diametrically opposite position to the lower nibs.
  • the invention also relates to a jacquard weaving machine equipped with hooks of the aforesaid type in which said hooks are controlled with a composite movement of rotation and flexure.
  • the reference numeral 1 indicates the punched tape carrying the hook movement programme corresponding to the pattern to be formed during weaving.
  • This programme is read by needles 2 arranged to raise pushers 3. When the pushers are raised, they are pressed by blades 4, and in this case cause the main needles 5 to move axially against the action of springs 6.
  • the reference numeral 9 indicates the fixed gripper of the base blades 10, on which the hooks 8 rest by way of the nib 11 when they are required to remain inactive.
  • the reference numeral 12 indicates the fixed gripper of the open-shed blades 13, on which the hook rests the way of the nib 14 when it is required to remain at rest in its upper end-of-stroke position.
  • the reference numeral 15 indicates the gripper of the lower mobile blades 16, which is driven with vertical reciprocating movement.
  • the reference numeral 19 indicates the gripper of the upper mobile blades 20, which is also driven with vertical reciprocating movement as in the case of the lower gripper 15, but with its movement displaced in phase by 180° with respect to this latter.
  • FIG. 2 shows a hook 8 according to the invention. It is constituted by a cylindrical rod with a flattened appendix at its base in which a hole 8A is provided for its connection to the loom heads.
  • the hook 8 is provided on one and the same side, at a suitable distance apart and parallel to each other, with the two lower nibs 11 and 14for its support on the base blades 9 and on the open-shed blades 12 respectively.
  • a bifurcated projecting appendix 21 in the form of two teeth or beaks 22 and 23, which have their facing surfaces strongly inclined, preferably with a variable inclination and/or curved profile. These teeth, joining at the same height, constitute the upper nibs of the hook for engagement with the mobile blade nibs.
  • the nibs (24, 26) of the plates 17A and 17B move freely during their vertical movements, remaining separated from the rod of the hook 8 by a space equal to about one half the distance by which the hook nibs (22, 23) project from said rod of the hook 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Paper (AREA)
  • Looms (AREA)
  • Supports For Plants (AREA)
  • Sewing Machines And Sewing (AREA)

Claims (2)

1. Einzelner Stangenhaken für eine Doppelhub-Offenfach-Jacquard-Webmaschine des Typs, der bewegliche, sich kreuzende Greifer und obere und untere Dornen umfaßt, dadurch gekennzeichnet, daß die oberen Dornen in der Form zweier Zähne (22, 23) eines einzelnen gegabelten Ansatzes (21) ausgebildet sind, der sich an dem Haken (8) auf der den unteren Dornen (11, 14) gegenüberliegenden Seite erstreckt, wobei die Oberflächen der Zähne (22, 23) geneigt sind und sich in derselben Höhe anschließen.
2. Jacquard-Webmaschine, die Haken (8) aufweist, wie sie in Anspruch 1 beansprucht sind, dadurch gekennzeichnet, daß die Haken (8) während des Betriebs veranlaßt, werden, eine kombinierte Bewegung aus Rotation und Biegung auszuführen, wobei die Rotation durch das Ineingriffbringen der oberen Dornen (22, 23) des Hakens (8) mit den Dornen (24) der Greiferflächen (17) be- . gonnen und durch die Wirkung desselben Eingriffs vollendet wird, der durch den Druck, der seitlich auf die Stange des Hakens (8) wirkt, gesteigert wird, um das Lösen dessen unterer Dornen (11, 14) von den Offenfach-Blättern (9, 12) zu erlauben.
EP84108929A 1983-08-12 1984-07-27 Stangenförmige Platine für eine Jacquardmaschine und damit ausgerüstete Maschine Expired EP0135074B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84108929T ATE30926T1 (de) 1983-08-12 1984-07-27 Stangenfoermige platine fuer eine jacquardmaschine und damit ausgeruestete maschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT22544/83A IT1201101B (it) 1983-08-12 1983-08-12 Arpino ad asta unica per macchine d'armatura jacquard con esso realizzata
IT2254483 1983-08-12

Publications (3)

Publication Number Publication Date
EP0135074A2 EP0135074A2 (de) 1985-03-27
EP0135074A3 EP0135074A3 (en) 1985-05-02
EP0135074B1 true EP0135074B1 (de) 1987-11-19

Family

ID=11197654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84108929A Expired EP0135074B1 (de) 1983-08-12 1984-07-27 Stangenförmige Platine für eine Jacquardmaschine und damit ausgerüstete Maschine

Country Status (4)

Country Link
EP (1) EP0135074B1 (de)
AT (1) ATE30926T1 (de)
DE (1) DE3467593D1 (de)
IT (1) IT1201101B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9422519D0 (en) * 1994-11-08 1995-01-04 Bonas Machine Co Heald control mechanism
GB9609425D0 (en) * 1996-05-04 1996-07-10 Bonas Machine Co Heald control mechanism
CN1070551C (zh) * 1996-05-08 2001-09-05 邦纳斯机械有限公司 综杆控制机构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2179655A1 (de) * 1972-04-11 1973-11-23 Verdol Sa
FR2272316A1 (en) * 1974-05-21 1975-12-19 Vimercati Ettore Stop valve with pressure compensation - has cylindrical closure member movable axially into ring seal to close valve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2846793B1 (de) * 1978-10-27 1980-04-17 Zangs Ag Maschf Doppelhub-Offenfach-Jacquardmaschine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2179655A1 (de) * 1972-04-11 1973-11-23 Verdol Sa
FR2272316A1 (en) * 1974-05-21 1975-12-19 Vimercati Ettore Stop valve with pressure compensation - has cylindrical closure member movable axially into ring seal to close valve

Also Published As

Publication number Publication date
DE3467593D1 (en) 1987-12-23
EP0135074A2 (de) 1985-03-27
IT1201101B (it) 1989-01-27
EP0135074A3 (en) 1985-05-02
IT8322544A0 (it) 1983-08-12
ATE30926T1 (de) 1987-12-15

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