EP1736579B1 - Cadre à lisses - Google Patents

Cadre à lisses Download PDF

Info

Publication number
EP1736579B1
EP1736579B1 EP06011740A EP06011740A EP1736579B1 EP 1736579 B1 EP1736579 B1 EP 1736579B1 EP 06011740 A EP06011740 A EP 06011740A EP 06011740 A EP06011740 A EP 06011740A EP 1736579 B1 EP1736579 B1 EP 1736579B1
Authority
EP
European Patent Office
Prior art keywords
heald frame
side support
frame according
heald
coupling element
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 - Fee Related
Application number
EP06011740A
Other languages
German (de)
English (en)
Other versions
EP1736579A2 (fr
EP1736579A3 (fr
Inventor
Stefan Drope
Johannes Dr. Bruske
Karl-Heinz Gesing
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.)
Filing date
Publication date
Application filed by Groz Beckert KG filed Critical Groz Beckert KG
Publication of EP1736579A2 publication Critical patent/EP1736579A2/fr
Publication of EP1736579A3 publication Critical patent/EP1736579A3/fr
Application granted granted Critical
Publication of EP1736579B1 publication Critical patent/EP1736579B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D03C9/0666—Connection of frame parts
    • D03C9/0675—Corner connections between horizontal rods and side stays
    • 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
    • D03C9/065—Side stays
    • 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
    • D03C9/0683—Arrangements or means for the linking to the drive system

Definitions

  • the invention relates to a heddle with shaft rod and side support.
  • Heald frames generally consist of two parallel spaced shaft rods, which are connected to each other by side supports.
  • the side supports and the shaft rod form a rectangular frame at rest.
  • the shaft rods are with Litzentragschienen provided on which healds sit.
  • Each heddle has at least one thread guide loop, through which a warp thread extends.
  • the shives for shedding are moved vertically up and down in rapid succession. There are high dynamic loads.
  • the U.S. Patent 4,022,252 discloses a heddle with a rigid connection between the two vertically oriented side supports and the two horizontal shaft rods. During the upward and downward movement, the shaft rods are subject to a deflection upwards or downwards. Through the rigid corner joint they transfer this deflection to the side supports, which are thereby curved in an S-shape.
  • the JP 59-73382 discloses an articulated corner joint between the side support and the shaft rod.
  • the hinged corner joint is provided by a connecting joint disposed within the shaft rod.
  • an extension extends into the interior of the side support and includes there a bearing pin.
  • a heald known whose side supports and shaft rods are interconnected by connecting joints whose pivot axes go approximately centrally through the side supports.
  • the link joints include spring elements that force the 90 ° posture of the fastener and return any deflection from the 90 ° posture as soon as possible.
  • the spring elements introduce forces into the side support as soon as the shaft rod bends under dynamic load.
  • the cited JP 10-310948 the direct drive of the shaft rod either by acting on the side supports or by acting on the lower shaft rod drive means. As far as the drive devices engage the side supports, the force is introduced into the side support via linear motor or laterally projecting arms.
  • the heddle according to the invention according to claim 1 comprises at least one shaft rod and at least one side support, which are interconnected via a connecting joint.
  • This defines an outside of the shaft rod arranged pivot axis and is formed without reserve forces.
  • the connecting joint preferably defines an angle of 90 °, thereby allowing a pivoting range of a few degrees, for example ⁇ 3 °, ⁇ 5 ° or ⁇ 10 °. Within this pivoting range, no restoring forces occur. Any pivotal position given to the connecting joint remains intact. In this way, a transmission of bending moments between the shaft rod and the side support is prevented.
  • the connecting joint is preferably formed as a friction bearing plain bearing, preferably with the material pairing steel / steel, steel / plastic or steel / plastic / steel. Because the pivot axis is outside the shaft rod, the acceleration and deceleration forces are transmitted between the side support and shaft rod in a line that is close to or within the side support. Thus, these acceleration forces can cause no significant bending moments in the side support
  • the force introduction direction or vector is located within the side support.
  • the pivot axis of the connection joint is again outside of the shaft rod. This will reduce the dynamic loads that can be caused by the introduction of driving forces in the side support, as well as dynamic loads caused by the passing the driving forces could arise from the side support on the shaft rod.
  • the side supports are thus stressed essentially to train and on pressure, but hardly on bending, whereby they can be relatively easily formed.
  • the side supports can be formed as bent sheet metal parts.
  • the bent sheet metal part is preferably a U-profile, the interior of which is open towards the shaft rods.
  • it may also be designed as a tube-like profile or as a two-shell sheet metal profile, the halves of which are interconnected, for example, riveted.
  • connection joint preferably belongs a bearing body connected to the side support, which e.g. is cylindrical, with its outer peripheral surface then forms a sliding or bearing surface.
  • the bearing body can be completely housed in the interior of the side support. However, it is preferred to form the bearing body with a slightly larger diameter and to let it protrude out of the interior of the side support. This minimizes the dynamic surface loads on the bearing body.
  • connection joint further includes a coupling element which is pivotally mounted on the bearing body.
  • a coupling element which is pivotally mounted on the bearing body.
  • it encompasses or encompasses the bearing body in whole or in part.
  • It preferably has a shaft which extends into the shaft rod and there with the Shaft rod detachable, preferably frictionally connected.
  • the shank is preferably parallelepiped, ie it is bounded by straight, mutually parallel surfaces.
  • the coupling element may be provided with a leg extending into the interior of the side support.
  • the coupling element is then designed as a two-armed angle lever. Alternatively, it may be T-shaped.
  • the leg extending into the side support is oriented substantially parallel to the side support. He can take over several functions. For example, it may be provided with a buffer element which serves to limit the pivot angle of the connection joint at least in a pivoting direction. On a rectangular weaving shank with a total of four connecting joints thereby the total achievable swing angle is limited to the four corners of the rectangle formed.
  • the buffer member of a linkage joint limits the pivoting angle to more acute angles, this also causes the pivoting angle of the linkage joint seated at the other end of the shaft rod to be reduced to obtuse angles.
  • the unilateral swivel angle limits of the two seated at the ends of a shaft rod connecting elements in interaction cause a two-sided limitation of the swivel angle. Within the angular range, however, no restoring forces occur - at least not that could exceed the bearing friction of the connecting joint.
  • the buffer element may also have an extension serving as a strand stopper.
  • the strands are securely held on the corresponding support rails as soon as the side supports are connected.
  • the force introduction direction of the drive connection device and the connection joint is arranged not only within the cross-sectional profile enclosed by the side support but, moreover, on the longitudinal center axis of the side support.
  • the longitudinal center axis is defined by the centroids of the cross-sectional profile and represents that line on which a force introduction into the side support in the longitudinal direction does not produce any bending moment.
  • FIG. 1 a heald 1 is illustrated, which serves for shedding in a weaving machine. It has an upper and a lower shaft rod 2, 3, each formed by a hollow-chamber extruded aluminum profile are arranged horizontally and parallel to each other. At their ends they are connected by side supports 4, 5 with each other. The side supports 4, 5 are provided, for example at their upper ends with drive-connecting devices 6, 7, which form part of a coupling device for coupling a mechanical drive.
  • the shaft rods 2, 3 are provided with Litzentragschienen on which strands 8 sit to Kettfadenation.
  • FIG. 1 only a few strands are illustrated - but the group of strands extends from one end of each shaft rod 2, 3 to its respective other end.
  • connecting joints 9, 10, 11, 12 which is an articulated, i. about only one axis pivotal connection between the respective shaft rod 2, 3 and the respective side support 4, 5 form.
  • the connecting joints 9 to 12 define pivot axes 13, 14, 15, 16, which are arranged outside the shaft rods 2, 3 and preferably within the side supports 4, 5.
  • the connecting joints 9 to 12 allow a free pivoting movement between the shaft rods 2, 3 and the side supports 4, 5 in a limited pivoting range.
  • Spring elements or the like other elements which could be adapted to a pivoting movement of the connecting joint 9, 10, 11, 12 to prevent or inhibit, are not present.
  • the coupling element 23 comprises the bearing body 22 wholly or partially.
  • the coupling element 23 has a cylinder bore with which it sits on the bearing body 22.
  • the coupling element 23 may consist of steel. The result is the material combination steel / steel.
  • a plastic bushing can be arranged so that the material pairing steel / plastic / steel results. It is advantageous if the plastic bushing is connected neither to the coupling element 23 nor to the bearing body 22.
  • the coupling element 23 and the bearing body 22 are rotatable against each other with low friction. However, the fit does not show noticeable play.
  • a shaft 24 extends away, which, in particular FIG. 5 illustrated, for connecting the connecting joint 10 with the shaft rod 2 is used.
  • the shaft rod 2 is, for example, an aluminum extruded profile having a longitudinally extending cavity.
  • the shaft 24 extends into this and is there with a clamping device 25 is held.
  • This consists for example of plastic and includes a wedge 26 which can be tensioned by not further illustrated actuating means against the shaft 24.
  • the coupling element 23 is, as FIG. 5 illustrated, preferably designed as a two-armed lever.
  • it has a leg 27 extending into the interior space 21 of the side support 5, which is preferably oriented approximately parallel to the longitudinal direction of the side support 5.
  • the leg 27 may carry at its free end a buffer element 28, which consists for example of plastic.
  • the coupling element 23, which preferably has a total thickness, which is only slightly smaller than the distance of the legs 19, 20 from each other, has for the storage of the buffer member 28 on its narrow sides notches 29, 30, engage in the corresponding locking lugs of the buffer member 28.
  • the buffer element 28 may have an extension 31 which projects out of the inner space 21 and below the shaft rod 2 into the region in which the strands 8 are held.
  • the extension 31 thus forms a Litzenstopper, which prevents the strands 8 from slipping off of the not further illustrated, held on the shaft rod 2 Litzentragschiene.
  • the extension 31 is so long that this effect occurs regardless of the currently existing pivot angle.
  • the buffer element 28 may be provided with a contact surface 32, which serves to limit the pivot angle of the connecting joint 10. She finds her attachment to the back 18.
  • the drive-connecting device 7 is arranged in the immediate axial extension of the side support 5 and formed integrally therewith.
  • the drive connection device may have an outline hexagonal between the legs 19, 20, for example, rotatably mounted body 33. Its axis of rotation is preferably on the longitudinal central axis 34 of the side support 5, which is in a sense a neutral axis. Forces which are introduced into the side support 5 in the direction of the longitudinal central axis 34 do not lead to a bending but to a pure tensile and compressive stress of the lateral support 5.
  • the longitudinal central axis 34 is preferably defined such that it passes through the centroid of the cross-sectional profile.
  • the pivot axis 14 is arranged on this longitudinal central axis 34. But she also knows how FIG. 5 illustrated slightly offset laterally against the longitudinal central axis 34.
  • FIG. 6 illustrates a modified embodiment of the connecting joint 10, in particular of the shaft 24 of the coupling element 23 using the same reference numerals described above for the description of the embodiment of the Fig. 1 to 5 have been introduced and here have the same or analogous meaning.
  • the coupling element is preferably made of plastic, on the one hand surrounds the bearing body 22 of the side support and on the other hand protrudes with the shaft 24 in the interior 21 of the shaft rod 2 and is preferably fixed by a screw on the shaft rod 2. It has proved to be advantageous to reinforce the shaft 24 of this coupling element 23, which consists of plastic, at the upper and lower edge by a respective reinforcing element 35, 36.
  • These stiffening elements 35, 36 are preferably made of steel.
  • the steel elements 35, 36 extend from the cavity of the shaft rod 2 in the interior 21 of the side support 5 to over the center of the bearing body 22.
  • the shaft 24 is recessed, so that by means of the state of Technique proper fastener (not shown), which exerts a force on the steel member 35,36 by the shaft rod 2, the coupling element is attached to the shaft rod 2.
  • the recess 38 releases a clamping surface 37 for clamping with a screw.
  • the coupling element 23 according to FIG. 6 is also designed as a two-armed lever.
  • the leg 27 with the buffer element 28, which extends into the interior 21 of the side support 5, is in FIG. 6 only vaguely recognizable. It applies the description of FIG. 5 corresponding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Screen Printers (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Pivots And Pivotal Connections (AREA)

Claims (19)

  1. Cadre à lisses pour métier à tisser, qui comporte :
    - une verge des lames (2) sur laquelle sont maintenues des lisses (8) servant à former des pas de chaîne,
    - un support latéral (21) qui entoure un espace interne (2) et qui est relié à la verge des lames (2),
    - une articulation de liaison (10) qui est disposée entre le support latéral (5) et la verge des lames (2) afin de les relier, cette articulation de liaison (10) déterminant un axe de basculement (14) qui se trouve en dehors de la verge des lames (2),
    ce cadre à lisses étant caractérisé en ce que l'articulation de liaison (10), en ce qui concerne son mouvement de basculement, ne dispose pas de forces de rappel.
  2. Cadre à lisses selon la revendication 1, caractérisé en ce qu'il est prévu un dispositif d'entraînement et de raccordement (7) qui est monobloc avec le support latéral (5).
  3. Cadre à lisses selon la revendication 2, caractérisé en ce que le dispositif d'entraînement et de raccordement (7) est disposé à une extrémité du support latéral (5), en étant de préférence dans le prolongement rectiligne de celui-ci.
  4. Cadre à lisses selon la revendication 1, caractérisé en ce que le support latéral (5) présente in corps de base (17) qui a la forme d'une pièce de tôle pliée.
  5. Cadre à lisses selon la revendication 1, caractérisé en ce que le support latéral (5) présente un corps de base (17) qui a la forme d'un tube.
  6. Cadre à lisses selon la revendication 1, caractérisé en ce qu'à l'articulation de liaison (10) appartient un corps de palier (22) relié au support latéral (5).
  7. Cadre à lisses selon la revendication 6, caractérisé en ce que le corps de palier (22) est disposé, au moins en partie, dans l'espace interne (21) entouré par le support latéral (5), en étant maintenu entre les branches (19, 20) de ce support.
  8. Cadre à lisses selon la revendication 6, caractérisé en ce que le corps de palier (22) est cylindrique.
  9. Cadre à lisses selon la revendication 1, caractérisé en ce qu'à l'articulation de liaison (10) appartient un élément d'accouplement (23) qui est monté basculant sur le corps de palier (22).
  10. Cadre à lisses selon la revendication 9, caractérisé en ce que l'élément d'accouplement (23) présente une tige (24) qui pénètre dans la verge des lisses (2).
  11. Cadre à lisses selon la revendication 10, caractérisé en ce qu'à la tige est associé un dispositif de serrage (25), afin de relier cette tige de l'élément d'accouplement (23) à la verge des lames.
  12. Cadre à lisses selon la revendication 9, caractérisé en ce que l'élément d'accouplement (23) présente une branche (27) qui pénètre dans l'espace interne (21) du support latéral (5).
  13. Cadre à lisses selon la revendication 12, caractérisé en ce que la branche (27) est essentiellement parallèle au support latéral (5).
  14. Cadre à lisses selon la revendication 13, caractérisé en ce que la branche (27) présente à son extrémité libre un élément tampon (28).
  15. Cadre à lisses selon la revendication 14, caractérisé en ce que l'élément tampon (28) présente un appendice (31) qui fait saillie à l'extérieur du support latéral (5).
  16. Cadre à lisses selon la revendication 15, caractérisé en ce que l'appendice (31) est constitué en stoppeur de lisse.
  17. Cadre à lisses selon la revendication 14, caractérisé en ce que l'élément tampon (28) présente au moins une portée d'appui (32) qui, pour limiter l'angle de basculement de l'articulation de liaison (10) peut venir en contact avec une face interne du soutien latéral (5).
  18. Cadre à lisses selon la revendication 10, caractérisé en ce que la tige (24) est fixée à la verge des lames (2) par un moyen de liaison.
  19. Cadre à lisses selon la revendication 10, caractérisé en ce que la tige (24) est en matière synthétique et présente des éléments de raidissement (35, 36).
EP06011740A 2005-06-24 2006-06-07 Cadre à lisses Expired - Fee Related EP1736579B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005029699A DE102005029699B3 (de) 2005-06-24 2005-06-24 Webschaft

Publications (3)

Publication Number Publication Date
EP1736579A2 EP1736579A2 (fr) 2006-12-27
EP1736579A3 EP1736579A3 (fr) 2008-09-10
EP1736579B1 true EP1736579B1 (fr) 2010-03-17

Family

ID=37025060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06011740A Expired - Fee Related EP1736579B1 (fr) 2005-06-24 2006-06-07 Cadre à lisses

Country Status (5)

Country Link
US (1) US7617845B2 (fr)
EP (1) EP1736579B1 (fr)
JP (1) JP4572179B2 (fr)
CN (1) CN1884652B (fr)
DE (2) DE102005029699B3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1992724B1 (fr) * 2007-05-14 2012-01-25 Groz-Beckert KG Corde à lisse pouvant être divisée en deux parties
EP2573240B1 (fr) * 2011-09-20 2015-05-27 Groz-Beckert KG Corde à lisse de sécurité à vitesse élevée
EP3112509A1 (fr) * 2015-07-02 2017-01-04 NV Michel van de Wiele Pièce de raccordement pour éléments de raccord d'un mécanisme de formation de foule d'un métier à tisser

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485414A (en) * 1947-11-28 1949-10-18 Ruesch Paul Automatic heald stop motion for dobby looms
CH427688A (de) * 1965-04-30 1966-12-31 Grob & Co Ag Webschaft mit einer lösbaren Eckverbindung
US4022252A (en) * 1976-02-05 1977-05-10 Maruyama Seisakusho Kabushiki Kaisha Heddle frame for a high speed weaving machine
JPS5535481Y2 (fr) 1976-03-24 1980-08-21
JPS5640861Y2 (fr) * 1977-09-21 1981-09-24
JPS5738388Y2 (fr) * 1979-09-03 1982-08-24
CH643310A5 (en) * 1979-11-05 1984-05-30 Maruyama Mfg Co Heald frame
US4460022A (en) * 1980-03-10 1984-07-17 Sherrill John B Warp stop motion with control bar
JPS5973382A (ja) * 1982-10-18 1984-04-25 カヤバ工業株式会社 油圧緩衝器
JPH035728Y2 (fr) 1986-08-20 1991-02-14
FR2617204B1 (fr) * 1987-06-26 1989-10-27 Staubli Sa Ets Dispositif pour l'accouplement des cadres de lisses aux elements de transmission d'une mecanique pour la formation de la foule
JPH0248450Y2 (fr) * 1988-03-11 1990-12-19
BE1002484A3 (nl) * 1988-09-09 1991-02-26 Verbrugge Nv Weefraam met demonteerbare hoekverbindingen.
JP2756726B2 (ja) * 1990-05-10 1998-05-25 グロブ アンド カンパニー アクチェンゲゼルシャフト 着脱可能な辺縁接続部を備えたヘルドフレーム
DE4038384A1 (de) * 1990-12-01 1992-06-04 Grob & Co Ag Webschaft mit loesbaren eckverbindungen
US5411061A (en) * 1993-12-16 1995-05-02 Steel Heddle Mfg. Co. Heddle frame assembly with releasable end braces
DE4403923C1 (de) * 1994-02-08 1995-07-27 Grob & Co Ag Seitenstütze für einen Webschaft
DE19612404A1 (de) * 1996-03-28 1997-10-02 Grob & Co Ag Eckverbindung für einen Webschaft
JPH10310948A (ja) * 1997-05-08 1998-11-24 Toyota Autom Loom Works Ltd 開口装置のヘルドフレーム
JP2001064843A (ja) * 1999-08-25 2001-03-13 Nankai Kogyo Kk 織機のヘルドフレーム
FR2815048B1 (fr) * 2000-10-06 2002-12-20 Staubli Sa Ets Dispositif pour l'accouplement d'un cadre de lisses sur un element de transmission de mouvement, ensemble d'entrainement et metier a tisser equipe d'un tel ensemble
FR2835264B1 (fr) * 2002-01-25 2004-05-21 Burckle Et Cie Ets Procede de fabrication d'une traversee pour cadre de lisse de machine a tisser et traverse obtenue par ledit procede
DE10341629B4 (de) * 2003-09-10 2007-04-12 Groz-Beckert Kg Vibrationsarmes Fachbildesystem
DE10349381B4 (de) * 2003-10-21 2005-08-25 Groz-Beckert Kg Webschaft mit neuartigem Eckverbinder
DE10349382B3 (de) * 2003-10-21 2005-06-09 Groz-Beckert Kg Webschaft in Verbundbauweise
US7475708B2 (en) * 2004-11-17 2009-01-13 Groz-Beckert Kg Shaft drive for heald shafts of weaving machines
DE102005029701B3 (de) * 2005-06-24 2006-06-14 Groz-Beckert Kg Webschaft mit Selbstspannverschluss
DE102005029700B3 (de) * 2005-06-24 2006-10-12 Groz-Beckert Kg Seitenstütze für einen Webschaft
US20080053555A1 (en) * 2006-07-19 2008-03-06 Groz-Beckert Kg Shaft drive transmission and coupling rod

Also Published As

Publication number Publication date
DE102005029699B3 (de) 2007-02-08
CN1884652B (zh) 2011-05-04
DE502006006424D1 (de) 2010-04-29
EP1736579A2 (fr) 2006-12-27
US20070006930A1 (en) 2007-01-11
CN1884652A (zh) 2006-12-27
JP4572179B2 (ja) 2010-10-27
JP2007002398A (ja) 2007-01-11
US7617845B2 (en) 2009-11-17
EP1736579A3 (fr) 2008-09-10

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