EP0770722A1 - Traverse à structure composite pour lames de métiers à tisser - Google Patents

Traverse à structure composite pour lames de métiers à tisser Download PDF

Info

Publication number
EP0770722A1
EP0770722A1 EP96116603A EP96116603A EP0770722A1 EP 0770722 A1 EP0770722 A1 EP 0770722A1 EP 96116603 A EP96116603 A EP 96116603A EP 96116603 A EP96116603 A EP 96116603A EP 0770722 A1 EP0770722 A1 EP 0770722A1
Authority
EP
European Patent Office
Prior art keywords
crosspiece
section
lower section
composite material
onto
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.)
Withdrawn
Application number
EP96116603A
Other languages
German (de)
English (en)
Inventor
Luigi Bernardi
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.)
Nuova OMV SRL
Original Assignee
Nuova OMV SRL
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 Nuova OMV SRL filed Critical Nuova OMV SRL
Publication of EP0770722A1 publication Critical patent/EP0770722A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • D03C9/0608—Construction of frame parts
    • D03C9/0616—Horizontal upper or lower rods
    • D03C9/0625—Composition or used material
    • 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
    • D03C9/0608—Construction of frame parts
    • D03C9/0616—Horizontal upper or lower rods
    • D03C9/0633—Heald bars or their connection to other frame parts

Definitions

  • the present invention applies to the construction of fittings for looms and, particularly, of heald frames; it concerns, more exactly, a crosspiece having a composite structure to be used in the construction of heald frames for looms.
  • Heald frames are devices mounted in looms to obtain - through their reciprocating motion on a vertical or horizontal plane, perpendicular to the weaving plane - the movement of groups of warp yarns according to a preset weaving pattern.
  • the heald frames comprise two side members, acting as guides for the reciprocating sliding motion of the frame, and two crosspieces into which are inserted the healds (thin rods of steel, or of other materials), each holding a warp yarn.
  • the side members and crosspieces are fixed together at right angles, in correspondence of the four corners of the frame, in a perfectly rigid manner - so as to prevent any possible deformation of the frame during weaving - and, at the same time, easy to disassemble, so as to allow inserting or removing the healds according to the number required for each weaving operation.
  • heald frames With the improvement of the performances of modern looms, specially the increase of the weaving speed, it has become particularly important to reduce the weight of the masses moving with a reciprocating motion, and thus also the weight of the heald frames.
  • the present trend is to thus use, for the construction of heald frames, lighter and lighter materials, such as aluminium, light alloys and composite materials, seeking to reach the best compromise between the characteristics of lightness and those of resistance to mechanical stresses.
  • the object of the present invention is to thus supply a crosspiece structure which is very light and has, at the same time, high characteristics of rigidity and resistance to mechanical stresses. Said object is reached by means of a crosspiece of composite structure for the construction of heald frames for looms, formed by an upper section and by a lower section between which there is interposed a flat body having a honeycomb structure, said three elements being kept mutually connected by a pair of thin sidewalls of composite material, glued onto the side surfaces of said elements.
  • the crosspiece of the present invention comprises the following main elements:
  • this latter also comprises, close to its bottom end, a longitudinal ribbing 4a for fixing means to guide the healds; such means essentially consist of a steel plate 6, preferably welded to said ribbing 4a of the lower section 4.
  • the plate 6 is meant to form, with the section 4, a track to support and guide the hook end of the healds L, which place themselves astride of its upper edge.
  • the plate 6 has a depressed zone, or longitudinal groove 6a, on its side facing the section 4.
  • the aforedescribed structure has excellent mechanical characteristics, particularly a high rigidity and capability to dampen vibrations and noise; its weight is moreover reduced, even as far as 20%, in respect of the weight of an extruded aluminium monolithic bar of the same size.
  • the lower section 4 of fig. 1 acting as support for the healds, is replaced by a section 7 consisting - like the upper section 1 - of extruded aluminium or of another light and highly resisting material. Also this section 7 comprises partially depressed side surfaces 7a ending into shoulders 7b - with a symmetrical arrangement in respect of the depressed surfaces 1a and shoulders 1b of the upper section 1 - to allow glueing thereon the sidewalls 2 and 3.
  • the section 7 equally comprises a ribbing 8, obtained directly by extrusion, to fix thereon the already described guide means in the form of a plate 6.
  • the plate 6 is fixed by riveting, or by riveted pins, or else by glueing.
  • a cavity 7c is finally formed into the section 7, acting as guide for a steel block (not shown) positioned therein, said block comprising threaded holes for fixing an intermediate tie rod for the heald frame.
  • This embodiment of the crosspiece is therefore particularly suited for frames of great width.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Woven Fabrics (AREA)
EP96116603A 1995-10-16 1996-10-16 Traverse à structure composite pour lames de métiers à tisser Withdrawn EP0770722A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI950711U 1995-10-16
ITMI950711 IT237225Y1 (it) 1995-10-16 1995-10-16 Traversa a struttura composita per quadri porta-licci di telai ditessitura

Publications (1)

Publication Number Publication Date
EP0770722A1 true EP0770722A1 (fr) 1997-05-02

Family

ID=11371251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96116603A Withdrawn EP0770722A1 (fr) 1995-10-16 1996-10-16 Traverse à structure composite pour lames de métiers à tisser

Country Status (2)

Country Link
EP (1) EP0770722A1 (fr)
IT (1) IT237225Y1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1170409A1 (fr) * 2000-07-06 2002-01-09 Nuova O.M.V. Officine Meccaniche Vilminore S.r.l. Traverse à multicomposants pour lames à faible bruit dans les métiers à tisser
FR2831558A1 (fr) * 2001-10-31 2003-05-02 Grob Horgen Ag Corps de support pour une lame et lame munie de celui-ci
EP1498521A2 (fr) * 2003-07-18 2005-01-19 Staubli Faverges Cadre de lisses et métier à tisser pourvu d'au moins un tel cadre
CN112048800A (zh) * 2019-06-07 2020-12-08 意达股份公司 刚度提高的用于织机的综框横杆

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404995A (en) * 1981-04-10 1983-09-20 Steel Heddle Manufacturing Co. Heddle frame assembly construction and method
US4484604A (en) * 1983-09-06 1984-11-27 Steel Heddle Mfg. Co. Composite dual-face heddle frame slat
US4633916A (en) * 1985-06-24 1987-01-06 Rast John L Roll-formed shear-resistant frame slat
EP0302798A2 (fr) * 1987-08-06 1989-02-08 Steel Heddle Mfg. Co. Partie longitudinale d'un cadre à lisses et lisse
EP0457210A1 (fr) * 1990-05-15 1991-11-21 Elio Carrara Tige à matériaux composites pour cadres de lisses
EP0496054A1 (fr) * 1991-01-19 1992-07-29 GROB & CO. AKTIENGESELLSCHAFT Traverse pour lame de métier à tisser
EP0504102A1 (fr) * 1991-03-14 1992-09-16 Gebrüder Sulzer Aktiengesellschaft Traverse pour lame et lame pour un métier à tisser

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404995A (en) * 1981-04-10 1983-09-20 Steel Heddle Manufacturing Co. Heddle frame assembly construction and method
US4484604A (en) * 1983-09-06 1984-11-27 Steel Heddle Mfg. Co. Composite dual-face heddle frame slat
US4633916A (en) * 1985-06-24 1987-01-06 Rast John L Roll-formed shear-resistant frame slat
EP0302798A2 (fr) * 1987-08-06 1989-02-08 Steel Heddle Mfg. Co. Partie longitudinale d'un cadre à lisses et lisse
EP0457210A1 (fr) * 1990-05-15 1991-11-21 Elio Carrara Tige à matériaux composites pour cadres de lisses
EP0496054A1 (fr) * 1991-01-19 1992-07-29 GROB & CO. AKTIENGESELLSCHAFT Traverse pour lame de métier à tisser
EP0504102A1 (fr) * 1991-03-14 1992-09-16 Gebrüder Sulzer Aktiengesellschaft Traverse pour lame et lame pour un métier à tisser

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1170409A1 (fr) * 2000-07-06 2002-01-09 Nuova O.M.V. Officine Meccaniche Vilminore S.r.l. Traverse à multicomposants pour lames à faible bruit dans les métiers à tisser
US6446676B1 (en) 2000-07-06 2002-09-10 Nuova O.M.V. S.R.L. Multicomponent cross-piece for low-noise heddle frames in weaving looms
FR2831558A1 (fr) * 2001-10-31 2003-05-02 Grob Horgen Ag Corps de support pour une lame et lame munie de celui-ci
BE1016042A5 (fr) * 2001-10-31 2006-02-07 Grob Horgen Ag Corps de support pour une lame et lame munie de celui-ci.
EP1498521A2 (fr) * 2003-07-18 2005-01-19 Staubli Faverges Cadre de lisses et métier à tisser pourvu d'au moins un tel cadre
EP1498521A3 (fr) * 2003-07-18 2005-04-13 Staubli Faverges Cadre de lisses et métier à tisser pourvu d'au moins un tel cadre
CN1576420B (zh) * 2003-07-18 2011-02-02 施托布利法韦日公司 综框以及装备有至少一个这种综框的织机
CN112048800A (zh) * 2019-06-07 2020-12-08 意达股份公司 刚度提高的用于织机的综框横杆

Also Published As

Publication number Publication date
IT237225Y1 (it) 2000-09-05
ITMI950711U1 (it) 1997-04-16
ITMI950711V0 (it) 1995-10-16

Similar Documents

Publication Publication Date Title
US4633916A (en) Roll-formed shear-resistant frame slat
JP2593707B2 (ja) ヘルド用支持ロッド
US5297589A (en) Heddle frame with detachable corner connections
EP1170409B1 (fr) Traverse à multicomposants pour lames à faible bruit dans les métiers à tisser
US5183082A (en) Frame stave for a heddle frame
EP0770722A1 (fr) Traverse à structure composite pour lames de métiers à tisser
US4484604A (en) Composite dual-face heddle frame slat
US5232025A (en) Shaft rod and heald frame for a loom
US4508145A (en) Heddle frame and composite frame slat construction
JP2759723B2 (ja) 織機のヘルドフレーム
JP4134146B2 (ja) ヘドルシャフトのためのシャフトロッド
US3155118A (en) Loom harness
JP4257362B2 (ja) 織機用ヘルドシャフト
JPH02300346A (ja) 軽量ヘッドル支持バー
EP2071929B1 (fr) Cadre de lisses à profil de renfort de métier à tisser
US3604469A (en) Loom harness
US7578316B2 (en) Heddle shaft rod, heddle shaft, and method for producing a heddle shaft rod
JP6309207B2 (ja) 補強ロッドを備えたヘルド枠用のシャフトロッド
JP3227603U (ja) 剛性を向上させた製織機用の綜絖枠のクロスバー
BE1012033A3 (nl) Bevestiging voor een riet.
GB2058855A (en) Heald frame staves
US3241575A (en) Heddle frames
US5226457A (en) Corrugated shaft rod and a heald frame for a loom
JPH0791722B2 (ja) 織機のヘルドフレーム
JPS6036616Y2 (ja) 綜絖枠の横梁

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE CH DE ES FR IT LI

17P Request for examination filed

Effective date: 19971028

17Q First examination report despatched

Effective date: 19990916

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20000328