WO2009027092A2 - Cadre ayant des lamelles à aiguilles et lamelles guides - Google Patents

Cadre ayant des lamelles à aiguilles et lamelles guides Download PDF

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Publication number
WO2009027092A2
WO2009027092A2 PCT/EP2008/007078 EP2008007078W WO2009027092A2 WO 2009027092 A2 WO2009027092 A2 WO 2009027092A2 EP 2008007078 W EP2008007078 W EP 2008007078W WO 2009027092 A2 WO2009027092 A2 WO 2009027092A2
Authority
WO
WIPO (PCT)
Prior art keywords
lamellae
needle
guide
recess
threads
Prior art date
Application number
PCT/EP2008/007078
Other languages
English (en)
Other versions
WO2009027092A3 (fr
Inventor
Patrick Strubbe
Michel Battmann
Original Assignee
Picanol N.V.
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
Priority claimed from DE102007043112A external-priority patent/DE102007043112A1/de
Priority claimed from DE102007043111A external-priority patent/DE102007043111A1/de
Application filed by Picanol N.V. filed Critical Picanol N.V.
Publication of WO2009027092A2 publication Critical patent/WO2009027092A2/fr
Publication of WO2009027092A3 publication Critical patent/WO2009027092A3/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C7/00—Leno or similar shedding mechanisms
    • D03C7/06—Mechanisms having eyed needles for moving warp threads from side to side of other warp threads
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds
    • D03C9/024—Eyelets
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/06—Heald frames

Definitions

  • the invention relates to a frame having successively arranged needle lamellae for ground threads and guide lamellae for leno threads, in which frame the guide lamellae are bordered at both ends in each case with a profile and the shorter needle lamellae are bordered at only one end with one of the profiles and are provided at their free end with a guide eye for ground threads.
  • the object of the invention is to provide a frame of the type mentioned above, which allows, on the one hand, to provide guide eyes with a large free cross section and, on the other hand, to centre the needle lamellae between the guide lamellae such that the leno threads can always come alternately onto the correct side of the needle lamellae.
  • the needle lamellae are provided, for forming the guide eyes, with a recess delimited with respect to the narrow sides or lateral edges by a front leg and a rear leg which are bent in opposite directions out of the plane of the lamellae in such a way that a free passage is pre- sent in the running direction of the ground threads.
  • the bent-out portions of the legs which delimit the recess for forming guide eyes are shaped and/or arranged such that a relative movement between the needle lamellae and the guide lamellae is possible, in order to deliver the leno threads past the guide eyes onto one side or the other of the needle lamellae.
  • Fig. 1 shows a front view of a heddle frame according to the invention
  • Fig. 2 shows a part-view of a frame according to Fig. 1 on a somewhat enlarged scale
  • Fig. 3 shows a perspective part-view of a frame according to Fig. 1 or 2
  • Fig. 4 shows a section through the frame according to Fig. 2 along the line IV-IV,
  • Fig. 5 shows a view in the direction bf the arrow V of Fig. 4 on an enlarged scale
  • Fig. 6 shows a section, similar to Fig. 4, through a modified embodiment
  • Fig. 7 shows a view in the direction of the arrow VII of Fig. 6,
  • Fig. 8 shows a section, similar to Fig. 6, through a modified embodiment
  • Fig. 9 shows a section through a needle strip for ground threads
  • Fig. 10 shows a further device for the holding of lamellae.
  • Fig. 1 shows a frame with an upper profile 10, with a lower profile 11 and with two side profiles 12 and 13.
  • the frame contains alternately successively arranged guide lamellae 14 for leno threads and needle lamellae 15 for ground threads.
  • the guide lamellae 14 are arranged with their two ends in the profiles 10, 11 , as will be described in detail later.
  • the needle lamellae 15 are arranged and held with only one end in the profile 10.
  • the guide lamellae 14 and the needle lamellae 15 face one another with their flat sides. Their narrow sides or lateral edges running transversely thereto lie essentially in one plane, parallel to warp threads during operation.
  • the needle lamellae 15 are provided in the region of their ends with guide eyes 16, through which in each case a ground thread is guided.
  • the needle lamel- lae 15 are provided in the region of their ends with an approximately square recess 17 which has rounded corners.
  • the recess 17 extends approximately over two-thirds of the width of the needle lamellae 15.
  • the recess 17 is delimited in the running direction of ground threads, in the direction of the narrow sides, by means of legs 18, 19.
  • the legs 18, 19 are bent in opposite direc- tions out of the plane of the lamellae, so that, in the running direction of ground threads, a free passage 20 is provided, through which the ground threads can run, without being appreciably deflected.
  • the width B, C of the legs 19, 18 delimiting the recess 17 corresponds at most to a quarter of the width A of the needle lamellae 15.
  • the recess 17 has in the longitudinal direction L of the needle lamellae 15 a dimension which corresponds approximately to their dimension. [ooii] As can be seen particularly from Fig. 4 and 5, the legs 18, 19 are not bent out over their entire height, but only over a portion which amounts to about half their length.
  • the inner edges of the recess which are illustrated by dashes in Fig. 5, are rounded.
  • the legs 18, 19 of the needle lamellae 15 are bent out only to an extent such that they can maintain a distance from the guide lamellae 14 which is sufficient to make it possible to guide a leno thread between the guide eyes 16 and the guide lamellae 14 along the needle lamellae 15.
  • the thickness of the guide lamellae 14 amounts to approximately 0.2 mm and the thick- ness of the needle lamellae 15 to approximately 0.4 mm.
  • the protuberance between two mutually opposite margins of the guide lamellae 14 therefore amounts to at least 0.9 mm, preferably at least 1 mm.
  • the width of the guide lamellae 14' in the region of the guide eyes 16 of the needle lamellae 15' is narrower than the recess 17 in the direction of the lamella width. It is thereby possible to arrange the guide lamellae 14' at a shorter distance from one another and from the needle lamellae 15' and, nevertheless, to allow the leno threads to move past the guide eyes 16 between the guide eyes 16 and the guide lamellae 14'.
  • the dimension of the recess 17 of the needle lamellae 15' transversely to the longitudinal direction L is greater than the width which the guide lamellae 14' have in the region of the recess 17.
  • the needle lamellae 15' in order to prevent the needle lamellae 15' from abutting against the guide lamellae 14', thereby preventing a leno thread from being guided past the needle lamella 15' on the desired side the needle lamellae 15' are provided with embossings 21 , 22, as indicated in Fig. 6 which ensure that a gap, sufficient for the introduction of a leno thread, is maintained between the needle lamellae 15' and the guide lamellae 14'.
  • corresponding embossings are provided on the guide lamellae 14'.
  • embossings 21 , 22 of this type are provided at the free end of the needle lamellae 15'.
  • Fig. 8 shows a section, similar to Fig. 4, through a further modified embodiment.
  • the guide lamellae 14" are provided with embossings 28, 29, which delimit a relative movement of the needle lamellae 15 with respect to guide lamellae 14". This likewise ensures that a gap is maintained between the needle lamellae 15 and the guide lamellae 14".
  • the embossings 28, 29 are configured as legs 28, 29, which delimit an orifice 27 laterally.
  • the guide lamellae 14, 14', 14" and the needle lamellae 15, 15' are arranged in the profiles 10, 11 in such a way as is known, for example, from the arrangement of lamellae of reeds (WO 99/64654 A1).
  • the ends of the guide lamellae 14, 14', 14" at the top in Fig. 4 and 6 are profiled. They are arranged at the desired distance from one another by means of a helically coiled spring 23 or a correspondingly coiled binding wire and are inserted into the profile 10 which has a U-shaped cross section.
  • a curing plastic is cast into the profile 10 and fixes the guide lamellae 14, 14', 14" and the needle lamellae 15, 15' in the predetermined position.
  • the guide lamellae 14, 14', 14" are enclosed at their opposite ends by a profile 11 into which a curing plastic is likewise inserted.
  • the helically coiled spring 23 or the correspondingly coiled binding wire may be left in the finished structure or be removed after the curing of the plastic.
  • Self explanatory it is also readily possible to connect the lamellae 14, 14', 14", 15, 15' to one another in another way before they are inserted into the profiles 10, 11. For example, it is possible to press into the recesses at the ends of the lamellae bars, which provide a non-positive connection at least.
  • needle lamellae and guide lamellae are arranged alternately.
  • Embodiments may also be envisaged, however, in which two or more guide lamellae are arranged next to one another to which two needle lamellae follow laterally.
  • the needle frame illustrated in Fig. 9, for ground threads of a leno weaving machine possesses lamellae 15 provided with guide eyes 16 for ground threads and supporting lamellae 14 arranged between them.
  • the lamel- lae 15 are provided in the region of the recess 17 with oppositely directed indentations 18, 19 which run in each case to the narrow sides and which form, for ground threads, a free passage running transversely with respect to the lamella 15.
  • the inversely arranged indentations are of a size such that they in each case touch the adjacent supporting lamellae 14.
  • the lamellae 14 and 15 are connected to one another to form a device, for which purpose the end regions lying opposite the recess 17 are connected to one another by means of recesses 30 and bars 31 pressed into them.
  • the lamellae 14, 15 are also aligned with one another, in the region of the ends provided with the recess 30, by means of a helically coiled spring.
  • the upper end of the lamellae 14, 15 is bordered with a profile 10.
  • the lamellae 14, 15 which are connected to the bars 31 in this region are connected to the profile 10 by means of a curing plastic material.
  • the needle frame formed from the lamellae 15, 14 is fastened in a leno weaving machine.
  • the opposite ends of the lamellae 14 are enclosed in a profile 11.
  • the lamellae 14 are connected to this profile 11 by means of a curing plastic.
  • the needle frame according to Fig. 9 for the ground threads is conventionally used in a leno weaving machine together with one or more perfo- rated strips for the leno warp threads.
  • Fig. 10 shows a portion of a further device for the holding of lamellae 15.
  • the lamellae 15 are configured similarly to the lamellae according to Fig. 9.
  • the upper end of the lamellae 15 is enclosed in the profile 10 and is connected in this region to bars 31.
  • the recesses 30 for the bars 31 have a dovetail- shaped configuration.
  • a positive connection is also achieved in addition to the non-positive connection.
  • Other undercuts may be provided for this purpose.
  • the bars 31 illustrated are in this case deformed elastically and/or plastically.
  • Connections of this type may also be employed for successively arranged lamellae of a reed, for example of a reed for gripper weaving machines or airjet-weaving machines and similar devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Knitting Machines (AREA)

Abstract

Selon l'invention, dans un cadre ayant des lamelles à aiguilles (15) disposées l'une après l'autre pour des fils de base et des lamelles guides (14) pour des fils de gaze, les lamelles à aiguilles (15) pour former des oeillets de guidage (16) sont prévues avec un évidement (17) délimité par rapport aux côtés étroits par des jambes (18, 19) pliées dans les directions opposées hors du plan de la lamelle à aiguille (15) de manière à prévoir un passage libre (20) dans le sens de circulation des fils de base.
PCT/EP2008/007078 2007-08-31 2008-08-29 Cadre ayant des lamelles à aiguilles et lamelles guides WO2009027092A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102007043112A DE102007043112A1 (de) 2007-08-31 2007-08-31 Verfahren zum Verbinden einer Vielzahl von Lamellen und Vorrichtung aus einer Vielzahl von Lamellen
DE102007043111A DE102007043111A1 (de) 2007-08-31 2007-08-31 Rahmen mit Steherlamellen und Führungslamellen
DE102007043111.4 2007-08-31
DE102007043112.2 2007-08-31

Publications (2)

Publication Number Publication Date
WO2009027092A2 true WO2009027092A2 (fr) 2009-03-05
WO2009027092A3 WO2009027092A3 (fr) 2009-07-23

Family

ID=40387911

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/007078 WO2009027092A2 (fr) 2007-08-31 2008-08-29 Cadre ayant des lamelles à aiguilles et lamelles guides

Country Status (1)

Country Link
WO (1) WO2009027092A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2748556C1 (ru) * 2019-12-11 2021-05-26 Акционерное общество "Уральский научно-исследовательский институт композиционных материалов" Устройство для образования зева ткацкой машины

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US687541A (en) * 1901-07-02 1901-11-26 Isaac E Palmer Heddle.
CH330781A (de) * 1953-07-01 1958-06-30 Weberei Ausruestung Veb Verfahren zur Herstellung von Flachstahlwebelitzen mit Mittelauge
US3428094A (en) * 1967-06-05 1969-02-18 Steel Heddle Mfg Co Loom harness
DE4336362C1 (de) * 1993-10-25 1994-10-13 Grob & Co Ag Fadenauge für Weblitze
WO2002101131A2 (fr) * 2001-06-13 2002-12-19 Lindauer Dornier Gesellschaft Mbh Metier a tisser destine a la production d'un tissu en gaze

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US687541A (en) * 1901-07-02 1901-11-26 Isaac E Palmer Heddle.
CH330781A (de) * 1953-07-01 1958-06-30 Weberei Ausruestung Veb Verfahren zur Herstellung von Flachstahlwebelitzen mit Mittelauge
US3428094A (en) * 1967-06-05 1969-02-18 Steel Heddle Mfg Co Loom harness
DE4336362C1 (de) * 1993-10-25 1994-10-13 Grob & Co Ag Fadenauge für Weblitze
WO2002101131A2 (fr) * 2001-06-13 2002-12-19 Lindauer Dornier Gesellschaft Mbh Metier a tisser destine a la production d'un tissu en gaze

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2748556C1 (ru) * 2019-12-11 2021-05-26 Акционерное общество "Уральский научно-исследовательский институт композиционных материалов" Устройство для образования зева ткацкой машины

Also Published As

Publication number Publication date
WO2009027092A3 (fr) 2009-07-23

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