EP1953277B1 - Traverse pour lame de métier à tisser - Google Patents

Traverse pour lame de métier à tisser Download PDF

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Publication number
EP1953277B1
EP1953277B1 EP20070002184 EP07002184A EP1953277B1 EP 1953277 B1 EP1953277 B1 EP 1953277B1 EP 20070002184 EP20070002184 EP 20070002184 EP 07002184 A EP07002184 A EP 07002184A EP 1953277 B1 EP1953277 B1 EP 1953277B1
Authority
EP
European Patent Office
Prior art keywords
web
heald frame
frame rod
belt
straps
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.)
Active
Application number
EP20070002184
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German (de)
English (en)
Other versions
EP1953277A1 (fr
Inventor
Franz Mettler
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.)
Groz Beckert KG
Original Assignee
Groz Beckert KG
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.)
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Publication date
Application filed by Groz Beckert KG filed Critical Groz Beckert KG
Priority to EP20070002184 priority Critical patent/EP1953277B1/fr
Priority to CN2008100092741A priority patent/CN101235569B/zh
Publication of EP1953277A1 publication Critical patent/EP1953277A1/fr
Application granted granted Critical
Publication of EP1953277B1 publication Critical patent/EP1953277B1/fr
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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

Definitions

  • the invention relates to a shaft rod which is suitable for the construction of heddles.
  • the DE 29 33 442 C2 discloses a shaft rod in the form of a box-hollow profile, which may be formed of plastic or light metal. If such a profile made of aluminum, results in a relatively high weight. If, on the other hand, fiber-reinforced plastics are provided for production, complex production processes and high costs result.
  • the use of I-profiles has also been proposed.
  • the AT 180240 C a shaft rod produced from a sheet metal profile, wherein the edges of a strip-shaped sheet metal profile have been folded into straps. The web remaining therebetween is provided, for example, with longitudinal waves.
  • the FR 1009932 C and the CH 276383 C disclose shaft rods with I-section.
  • the Japanese utility model 60-36616 U discloses a shaft bar with I-profile shaped support, the central I-section having relatively massive straps and a comparatively thinner middle strap.
  • the bridge is provided on both sides with filling and stiffening materials.
  • the straps are connected by external covers. Although these carry-on covers contribute to increasing the rigidity, but increase the overall weight considerably.
  • a shaft rod with central I-profile known. This has a profile cross section with two flat side surfaces and two straps, which are integral part of the profile cross-section. Between the straps wooden strips 16, 17 are arranged, which are firmly connected over their entire contact surface by adhesive with the solid metal profile.
  • a shaft rod which has at least in one embodiment, a flat central web and a top of the web attached strip portion which projects beyond the web on both sides.
  • the shaft rod according to the invention has a central support element with a profile cross-section, which includes a web with two flat side surfaces and two straps, which project beyond the web on both sides. While the straps have a large cross-section, in particular to achieve a high kinking and this affects only the webs, the web has a small, preferably very small thickness. For example, it is only at most 0.5 mm, but preferably less than 0.2 mm, for example, only 0.15 mm.
  • the web can consist of a metal, such as steel, aluminum, magnesium or alloys. It may also consist of a plastic or plastic composite material, such as a thermoset or thermoset, are stored in the short fibers or long fibers disorderly or orderly.
  • the fibers may be glass fibers, aramid fibers, carbon fibers or the like. Due to the small thickness of the web this alone is not sustainable. However, it has at least on one side surface, preferably on both side surfaces on stiffening pads. Issue these stiffening requirements the web the required stiffness to keep the webs at all occurring static and dynamic loads at a predetermined fixed distance from each other.
  • the stiffening pads can completely or partially fill the wide groove-like receiving spaces formed by the straps and the web. Preferably, the stiffening pad extends from strap to strap. The straps can project slightly beyond the stiffening pads.
  • the at least one stiffening pad may be provided with a non-load-bearing cover which serves, for example, as contamination protection.
  • the cover may for example be formed as a thin film or layer which is attached to or on the stiffening pad. It can e.g. be formed by metal or plastic films. It can extend to the straps and end there or be connected to the straps. It is also possible to tighten the cover from strap to strap. In this case, a gap may be provided between the cover and the stiffening profile.
  • the web can be arranged to the belt both symmetrically and asymmetrically.
  • the belt and the web can be made of different materials and are connected to each other via suitable connecting means.
  • Connecting means may be adhesive joints, welds, welds, splices or other connection means.
  • the belt consists of two belt halves, which are connected to the bridge.
  • the bridge can thus be extend through the belt and carry other elements, such as a Litzentragschiene.
  • one of the straps may be replaced by another element, such as a heddle, which then forms the strap.
  • the stiffening pad is preferably connected over its entire surface with the web. It preferably consists of a cell-containing material, such as a honeycomb material, an open-cell or closed-cell foam.
  • the stiffening pad may be made of a plastic, such as plastic foam or a natural material, such as a light wood.
  • the stiffened by the stiffening pad web can be designed as a closed wall. It is also possible to provide the bridge with openings. For example, the area defined by the openings is larger than the remaining area of the web enclosed between the belts. As a result, a particularly lightweight design is achieved.
  • FIG. 3 illustrates an example of a shaft rod 1 in a perspective cut view belonging to a weaving shank of a weaving machine.
  • the shaft rod 1 is formed by an I-profile body to which an upper belt 2 and a lower belt 3 and a web 4 belong.
  • the straps 2, 3 are made of pressure and tensile material, such as a suitable metal or plastic.
  • the straps 2, 3 may be formed of aluminum, magnesium or another metal. They can be designed as hollow or solid profiles.
  • the straps 2, 3 each consist of belt halves 2a, 2b, 3a, 3b with approximately square cross section or rectangular cross section. For rectangular cross-section, the aspect ratio of the cross-sectional rectangle is preferably not greater than 2.
  • the straps 2, 3 or belt halves 2a, 2b, 3a, 3b are made of plastic, they preferably contain a fiber reinforcement. This in turn preferably consists of directed fibers, which are oriented predominantly in the belt longitudinal direction. It may be mineral fibers, such as glass fibers or carbon fibers.
  • the distance between the two straps 2, 3 is spanned by the web 4, which preferably consists of a thin sheet material. His between his two preferably flat side surfaces 5, 6 to be measured thickness is at most 0.5 mm.
  • the web 4 consists of a thin steel sheet having a thickness of at most 0.15 mm. Instead of steel, aluminum, magnesium or another metal can also be used.
  • the web 4 made of a plastic, such as a fiber-reinforced resin.
  • the belt halves 2a, 2b are attached to the side surfaces 5, 6.
  • the belt halves 3a, 3b are attached to the side surfaces 5, 6 of the web 4.
  • For attachment can in turn serve adhesive bonds, welded joints or the like.
  • the web 4 may extend beyond the belt 3 addition.
  • an extension 7 is illustrated, which adjoins the web 4.
  • At the connecting joint may be provided a weld or an adhesive bond.
  • the belt halves 3a, 3b may partially extend to the flat side surfaces of the extension 7.
  • the web 4 and the extension 7 may have a different thickness or, as shown, also a same thickness. If the thickness is different, this can be advantageous for fastening a heddle support rail, which is then to be fastened to the extension 7.
  • stiffening supports 8, 9 are arranged, which serve to produce the rigidity of the thin central web 4.
  • the web 4 is so thin with the specified dimension of 0.15 mm that he would not keep the two straps 2, 3 alone and without stiffening at a safe distance.
  • the material with the web 4 is preferably glued over the entire surface.
  • the stiffening supports 8, 9 preferably extend from the belt 2 to the belt 3 and thus preferably connect without gaps to the straps 2, 3.
  • the stiffening pads 8, 9 have, for example, a rectangular Cross section, wherein they have a thickness D3, which is greater than the thickness D1 of the web 4. However, their thickness D3 is preferably less or at most as large as the supernatant of the straps 2, 3 on the side surfaces 5, 6. This supernatant is in FIG. 1
  • the thickness D3 of the stiffening pads 8, 9 is preferably smaller than the height D2 of the straps 2, 3. The height D2 is greater than the thickness D1 and perpendicular to this measure.
  • the stiffening pads 8, 9 are preferably made of a material with air or gas-filled cells, such as a plastic foam.
  • the foam may be open or closed cell. Closed cell foams are preferred because of the higher attainable stiffnesses. In addition, preference is given to those foams having cells of different sizes. There are polyurethane foams or the like into consideration.
  • the belt halves 2a, 2b and 3a, 3b can also be formed integrally with one another and, e.g. be connected by a weld or an adhesive bond with the web 4.
  • the stiffening supports 8, 9 can be covered to the outside by a non-supporting side cover, such as a plastic or metal foil. This extends from the belt 2 to the belt 3 and is, for example, connected to the essentially flat outer side of the reinforcing support 8, 9, for example adhesively bonded.
  • the cover may also extend to the straps 2, 3.
  • FIG. 2 illustrates a modified embodiment of the shaft rod 1.
  • the embodiment is preferably made of a low-cost steel. Unless hereinafter elements or components are not mentioned separately, the previous description applies accordingly.
  • the web 4 carries on its two flat side surfaces stiffening pads 8, 9 in the form of honeycomb elements, e.g. Aluminum honeycomb. These are preferably glued to the side surfaces 5, 6 of the web 4.
  • the straps 2, 3 or belt halves 2a, 2b, 3a, 3b are preferably also made of steel or another metal. They are welded to the web 4, for example, to welds 10, 11. Laser welding seams can be provided, with which it is also possible to connect different metals of the belt halves 2 a, 2 b (or 3 a, 3 b) and of the web 4.
  • the web 4 protrudes through the lower belt 3.
  • the section looking out of the belt 3 is caught between two transition pieces 12, 13 consisting of sheet steel.
  • transition pieces 12, 13 may be connected by welds 15, 16 with the belt halves 3a, 3b.
  • a bead 26 may be provided, on which a heddle 17 or other connecting means a heddle support rail 18, for example in the form of a steel strip, is attached.
  • the gaps between the belt halves 2a, 3a and 2b, 3b can be covered by cover films 19, 20.
  • the cover sheets 19, 20 have no supporting function. She may be formed for example by plastic films or thin resin reinforced glass nonwovens. They can be connected by adhesive joints 21 with the straps 2, 3.
  • the upper belt halves 2a, 2b preferably have a cross-section of e.g. 3 x 4 mm.
  • the lower belt halves 3a, 3b preferably have a cross section of only 4 x 2 mm.
  • a modified embodiment according to FIG. 3 corresponds largely to the above-described embodiment FIG. 2 , so that the description applies analogously on the basis of the same reference numbers.
  • the web 4 is slightly thicker and, for example, has a thickness of 0.8 mm. It is provided with generously dimensioned, preferably triangular recesses 22, each ending at some distance from the straps 2, 3.
  • the web 4 thus forms a triangular grid with low weight.
  • the belt halves 2a, 2b, 3a, 3b are in turn connected to the web 4 in a known manner.
  • the web 4 extends beyond the lower belt 3 also down and ends in a bead which carries the heddle support rail 18.
  • the connection is a weld 17. Again, between the reinforcing pads 8, 9 and the cover sheets 19, 20 a distance may be present. However, if the honeycombs complete with the edges of the straps 2, 3, the cover sheets 19, 20 may also be additionally connected to the honeycomb bodies.
  • FIG. 4 illustrates a further modified embodiment, wherein the web 4 made of plastic, for example a tissue reinforced plastic.
  • the fabric may be made of reinforcing fibers such as carbon fibers or glass fibers.
  • the thickness of the web 4 may be, for example, 0.3 mm to 0.4 mm.
  • Relatively inexpensive fibers, such as glass fibers, can be used.
  • the belt halves 2a, 2b, 3a, 3b are preferably made of plastic profiles containing unidirectional fibers.
  • the fibers may be high modulus fibers such as carbon fibers. It is preferred to use different fiber materials for the web 4 and for the straps 2, 3.
  • the web 4 may extend downwards between the belt halves 3 a, 3 b and may carry suitable carrier elements 25. At these, for example, by rivets 23, 24, the heddle support rail 18 are attached.
  • the cross-section of the straps 2, 3 taken together is greater than the cross-section of the web 4. If the web 4 has, for example, a thickness of 0.3 mm and a height of 70 mm to be measured between the straps 2, 3, this results in a cross-sectional area 21 mm 2 . On the other hand, all belt halves 2a, 2b, 3a, 3b taken together have a total cross-sectional area of 48 mm 2 for a cross section of 3 ⁇ 4 mm in each case. Thus, the cross-section of the straps 2, 3 is greater overall than the cross section of the web 4. In the present embodiment, even the cross section of a single belt 2 is greater than the cross section of the web 4. This is in terms of material cost of the associated cost and the achievable rigidity advantageous.
  • FIG. 5 is another non-inventive embodiment illustrated.
  • the web 4 here preferably consists of a metal sheet or else of a fiber-reinforced plastic.
  • the belt 2 reduces to the belt half 2a.
  • the belt half 2b is missing.
  • the function of the belt 3 is taken from the heddle support rail 18. This is connected to the weld 17 with a corresponding bead 26 of the web 4.
  • the heddle support rail 18 is provided on the same side surface 5 of the web 4, to which also the belt 2 and the reinforcing support 8 is attached. If necessary, it can remain without cover.
  • the cross section has straps 2, 3 and a web 4, which is very thin.
  • a very light reinforcement pad (8, 9) connected to it is provided on at least one of its side surfaces (5, 6) to stiffen it.
  • a lateral non-load-bearing cover may be provided.
  • the cross section of the straps 2, 3 is greater than the cross section of the web 4, which receives the required rigidity only thanks to the stiffening pad 8, 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Laminated Bodies (AREA)

Claims (8)

  1. Traverse de lame pour lame de métier à tisser comportant une section de profilé, traverse à laquelle appartiennent une entretoise (4) comportant deux surfaces latérales planes (5, 6) et deux éléments de maintien (2, 3) qui dépassent, des deux côtés, de l'entretoise (4), l'entretoise (4) présentant une épaisseur (D1) qui doit être mesurée entre ses surfaces latérales (5, 6) et les éléments de maintien (2, 3) présentant chacun une hauteur d'élément de maintien (D2) qui doit être mesurée parallèlement aux surfaces latérales (5, 6),
    comportant au moins un revêtement de raidissement (8, 9) prévu sur une surface latérale (5, 6),
    caractérisée en ce que les éléments de maintien (2, 3) sont constitués chacun de deux moitiés d'élément de maintien (2a, 2b ; 3a, 3b) qui sont appliquées sur les surfaces latérales (5, 6) et qui sont reliées à l'entretoise (4) à l'aide d'un moyen de liaison.
  2. Traverse de lame selon la revendication 1, caractérisée en ce que la hauteur (D2) d'élément de maintien est égale, ou supérieure, à l'épaisseur (D1) de l'entretoise et/ou en ce qu'au moins un des éléments de maintien est constitué d'un matériau qui est différent du matériau dont est constituée l'entretoise (4).
  3. Traverse de lame selon la revendication 1, caractérisée en ce qu'un des éléments de maintien (2, 3) est conformé en tant que rail (18) de support de lisses.
  4. Traverse de lame selon la revendication 1, caractérisée en ce que le revêtement de raidissement (8, 9) est relié à l'entretoise (4) sur toute sa surface.
  5. Traverse de lame selon la revendication 1, caractérisée en ce que le revêtement de raidissement (8, 9) présente des alvéoles creuses.
  6. Traverse de lame selon la revendication 1, caractérisée en ce que le revêtement de raidissement (8, 9) s'étend de l'élément de maintien (2) à l'élément de maintien (3).
  7. Traverse de lame selon la revendication 1, caractérisée en ce que le revêtement de raidissement (8, 9) est recouvert par une couverture latérale non porteuse (19, 20).
  8. Traverse de lame selon la revendication 1, caractérisée en ce que l'entretoise (4) est munie d'évidements (22).
EP20070002184 2007-02-01 2007-02-01 Traverse pour lame de métier à tisser Active EP1953277B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20070002184 EP1953277B1 (fr) 2007-02-01 2007-02-01 Traverse pour lame de métier à tisser
CN2008100092741A CN101235569B (zh) 2007-02-01 2008-01-31 用于综框的综框杆

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20070002184 EP1953277B1 (fr) 2007-02-01 2007-02-01 Traverse pour lame de métier à tisser

Publications (2)

Publication Number Publication Date
EP1953277A1 EP1953277A1 (fr) 2008-08-06
EP1953277B1 true EP1953277B1 (fr) 2010-09-15

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ID=38124154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070002184 Active EP1953277B1 (fr) 2007-02-01 2007-02-01 Traverse pour lame de métier à tisser

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Country Link
EP (1) EP1953277B1 (fr)
CN (1) CN101235569B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102534966B (zh) * 2012-02-06 2013-08-14 江苏华峰自然纤维制品有限公司 多花型自然纤维提花织机棕框提起机构中的翘杆顶起装置
CN107354558A (zh) * 2017-08-22 2017-11-17 西安工程大学 一种碳纤维夹芯结构综框

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1434189A (en) * 1921-06-14 1922-10-31 Samuel G Bennett Heddle frame
FR1002058A (fr) * 1948-07-01 1952-03-03 Lame ou cadre pour métier à tisser
FR1009932A (fr) 1948-07-12 1952-06-05 Perfectionnements aux cadres pour métiers à tisser
CH276383A (de) 1949-05-06 1951-07-15 Ag E Froehlich Webschaft für Webstühle.
CH286827A (de) 1950-04-29 1952-11-15 Formenti Sa Fab Aus mehreren zusammengeschweissen Teilen gebildetes Bauelement für Webstuhlschäfte.
US2697453A (en) * 1950-04-29 1954-12-21 Formenti Paolo Profile metal element made of a number of welded component parts, for frames of heddle shafts
AT180240B (de) 1950-06-28 1954-11-25 Formenti Sa Fab Aus einem einzigen Blechstreifen zusammengebogener Stab für Schaftrahmen
DE2523321A1 (de) 1975-05-27 1976-12-09 Egelhaaf C C Fa Webeschaftstab
CH637702A5 (de) 1979-07-13 1983-08-15 Grob & Co Ag Webeschaft.
JPS6036616U (ja) 1983-08-22 1985-03-13 太陽物産株式会社 極小カメラ用プラスチックレンズ
US4484604A (en) * 1983-09-06 1984-11-27 Steel Heddle Mfg. Co. Composite dual-face heddle frame slat
EP0288652A1 (fr) 1987-04-28 1988-11-02 N.V. Verbrugge Traverse pour lame de métier à tisser
CH680456A5 (fr) * 1988-11-18 1992-08-31 Steel Heddle Mfg Co
DE10319959B4 (de) * 2003-05-02 2007-02-01 Groz-Beckert Kg Webschaft für eine Webmaschine

Also Published As

Publication number Publication date
EP1953277A1 (fr) 2008-08-06
CN101235569A (zh) 2008-08-06
CN101235569B (zh) 2011-07-06

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