EP1953283A1 - Loom reed and method of manufacturing such a reed - Google Patents

Loom reed and method of manufacturing such a reed Download PDF

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Publication number
EP1953283A1
EP1953283A1 EP08356020A EP08356020A EP1953283A1 EP 1953283 A1 EP1953283 A1 EP 1953283A1 EP 08356020 A EP08356020 A EP 08356020A EP 08356020 A EP08356020 A EP 08356020A EP 1953283 A1 EP1953283 A1 EP 1953283A1
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EP
European Patent Office
Prior art keywords
profile
tooth
comb
grooves
teeth
Prior art date
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Granted
Application number
EP08356020A
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German (de)
French (fr)
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EP1953283B1 (en
Inventor
René Burnet
Franck Reuzeau
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Staeubli Lyon SA
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Staeubli Lyon SA
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Publication of EP1953283A1 publication Critical patent/EP1953283A1/en
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Publication of EP1953283B1 publication Critical patent/EP1953283B1/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/60—Construction or operation of slay
    • D03D49/62—Reeds mounted on slay
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/277—Guide mechanisms
    • D03D47/278—Guide mechanisms for pneumatic looms

Definitions

  • the present invention relates to a loom comb and a method of making such a comb.
  • the weft yarns In the field of weaving, the weft yarns must be pressed, shortly after insertion into the shed, against the fabric already produced, in order to confer a satisfactory regularity on the fabric produced.
  • a loom In the field of weaving, the weft yarns must be pressed, shortly after insertion into the shed, against the fabric already produced, in order to confer a satisfactory regularity on the fabric produced.
  • a comb mounted on a flap with a fast reciprocating movement allowing the comb to come beat the weft son.
  • Such a comb is formed by the juxtaposition and assembly of teeth, the space between each pair of adjacent teeth being intended for the passage of one or more warp son. It is necessary to have a precise positioning of the teeth relative to each other so as not to generate appearance defects in the fabric.
  • US-A-2 914 094 discloses a loom comb comprising, on a portion of the comb, a U-shaped member for receiving an end of each of the teeth of the comb portion.
  • the U-section member comprises two L-section portions each having, on the vertical bar of the L, grooves intended to be directed towards the inside of the U.
  • the relative positioning of the teeth is obtained by inserting the end of each tooth laterally in grooves of the L-section portions.
  • the teeth of the comb portion are removable and the two L-section portions are immobilized against the lateral edges of the teeth and one relative to the other. other by means of a bolt system. Therefore, the method of manufacturing this comb portion is relatively complex, and difficult to implement in an automated manner.
  • the invention more particularly intends to remedy by proposing a loom comb that can be obtained by an automated manufacturing method and for which the positioning of the teeth is precise and easily modifiable, with a view to a variation in the density of the teeth.
  • the subject of the invention is a comb of a loom, comprising at least one U-shaped cross-section profile and a row of teeth oriented transversely to the profile, one end of each tooth being received in the profile, characterized in that the profile has internal grooves formed on at least one of the two branches of the U, transversely to a longitudinal axis of the profile, and in that the aforesaid end of each tooth is inserted laterally into at least one groove of the profile, the comb comprising an adhesive material which secures the aforementioned end of each tooth with the profile.
  • the loom comb 1 shown in FIG. figure 1 is intended to equip a weaving loom type ribbon framer.
  • the comb 1 comprises a profile 3 with a U-shaped cross-section and a row of teeth 5 identical to each other, oriented substantially perpendicular to the profile 3.
  • the profile 3 is intended for the assembly of the teeth 5 and covers a first end 51 of each tooth 5.
  • the section 3 is monobloc and consists of a light metal alloy, in particular based on aluminum.
  • each tooth 5 is a blade of elongate and rectangular shape, cut in a flat sheet and polished.
  • Each tooth 5 is delimited by two longitudinal edges 52 and two transverse edges 54.
  • the two ends 51 and 55 of each tooth 5 respectively comprise a generally circular orifice 53 or 57, which is opening at the neighboring transverse edge 54.
  • each tooth 5 is received in the inner volume of the U-shaped section 3, the longitudinal edges 52 of the tooth 5 being disposed against the branches 31 of the profile 3, while the transverse edge 54 of the end 51 is arranged against the bottom 33 of the profile 3.
  • each tooth 5 is received in a pair of internal grooves 39 of the profile 3 formed vis-à-vis the two branches 31 of the U, substantially perpendicular to a longitudinal axis X 3 of the profile 3
  • each groove 39 is of V cross section, the two grooves 39 of a pair of grooves being identical.
  • the depth h of the grooves 39 may vary from one groove to another, as can the pitch p between two consecutive grooves 39 of one and the same branch 31 of the profile 3.
  • the figure 4 shows first and second sets of pairs of grooves 39 of the profile 3, in which the depth h of each groove 39 has respectively a first value h 1 and a second value h 2 , while the pitch p between two consecutive grooves 39 of a branch 31 has respectively a value p 1 in the first series and a value p 2 in the second series.
  • Each branch 31 of the profile 3 comprises an internal clearance 37 in the vicinity of the bottom 33 of the profile.
  • Each groove 39 of a branch 31 of the section 3 extends between this clearance 37 and the free edge 35 of the branch 31.
  • each pair of grooves 39 is adapted to the thickness of the tooth 5 which is inserted laterally into this pair of grooves, so that the bottom and the sides of the grooves 39 ensure the geometric positioning of the tooth
  • the end 51 of each tooth 5 is inserted into the pair of grooves 39 corresponding with or without play.
  • the ends 51 of the teeth 5, correctly positioned relative to the profile 3, are secured to the profile 3. by means of an adhesive 8 which, in the polymerized state, laterally closes the profile 3 in the vicinity of the ends 51 of the two extreme teeth of the comb 1.
  • the second ends 55 of the teeth 5 are assembled by means of a bead 7 made of a shape memory polymer material, of circular section, which passes through the orifices 57 of the ends 55 and ensures a correct alignment of the At their ends 55, for example, the constituent material of the bead 7 may be a cross-linked hydrophobic acrylic type shape-memory polymer, the glass transition temperature or softening temperature of which may be determined by means of FIG. adjustment of the composition of the monomers.
  • a method of manufacturing the comb 1 according to the invention comprises steps in which:
  • each pair of internal grooves 39 is machined in the branches 31 of the section 3, by means of a not shown tool comprising two opposite cutting edges having a V-shape.
  • This tool is introduced between the branches 31 of the profile. 3 in the direction of the arrow F 1 of the figure 3 , obtaining the grooves 39 that may require several passes of the tool inside the profile 3.
  • the tool is associated with a numerically controlled machine, it is possible to program the depth h of each groove 39 and the not p between two consecutive grooves 39 of the same branch 31 of the profile 3.
  • the machining grooves 39 can therefore be fully automated and performed with good productivity.
  • the clearances 37 of the branches 31 of the section 3 make it possible to define a flared zone inside the profile 3, which facilitates the evacuation of material chips generated during the machining of the grooves 39.
  • each tooth 5 When the grooves 39 have been machined in the branches 31 of the profile 3, the end 51 of each tooth 5, previously cut in a flat sheet metal according to the desired shape and polished, is inserted in a pair of grooves 39 corresponding to such that the longitudinal 52 and transverse edges 54 of the tooth 5 are respectively disposed against the branches 31, inside the grooves 39, and against the bottom 33 of the profile 3.
  • the insertion of each tooth 5 in a pair of grooves 39 is made with or without clearance.
  • the positioning of the tooth 5 in the section 3 is provided by pinching the tooth 5 between the branches 31 of the profile.
  • the V-shaped grooves 39 then allows a maintenance of the tooth 5 against the edges of the V-shaped grooves, without the need to clamp the tooth in the grooves.
  • the assembly formed by the profile 3 and the row of teeth 5 inserted into the grooves 39 is easily manipulated, in particular by robots, as part of a fully automated manufacturing process.
  • the manipulation of the assembly formed by the profile 3 and the teeth 5 inserted in the grooves 39 is all the easier as the teeth 5 are gripped in the grooves 39 and between the branches 31 of the profile 3.
  • the ends 55 of the teeth 5 are then capped by means of a second profile 9 with a U cross-section, shown in phantom lines only at the figure 2 and similar to the profile 3, inserting the end 55 of each tooth 5 in a corresponding pair of grooves of the second profile 9.
  • a correct spacing of the teeth 5 is ensured at their two ends 51 and 55.
  • a two-component adhesive 8 is then introduced into the section 3 at the orifice 53 of the end 51 of each tooth 5, by means of a cannula which circulates inside the aligned orifices 53.
  • a cannula which circulates inside the aligned orifices 53.
  • a cord 7 of polymeric shape memory material for example made of a crosslinked hydrophobic acrylic polymer as described above, is also introduced into the orifices 57 aligned with the ends 55 of the teeth 5. For its introduction into the orifices 57, the cord 7 is held in a compressed and flattened state so as to be easily insertable through the mouth of each orifice 57 opening at the transverse edge 54 associated with the end 55 of each tooth 5.
  • the assembly thus obtained which comprises the profile 3 comprising the bicomponent adhesive 8, the teeth 5, the compressed cord 7 and the second section 9, is then placed in an oven.
  • the polymerization of the two-component adhesive 8 is obtained, so that the teeth 5 are fixed rigidly inside the profile 3.
  • one obtains a volume expansion of the cord 7 of shape memory polymer material which regains its initial volume and immobilizes the end 55 of the teeth 5 respecting the spacing imposed by the second profile 9.
  • the ends 55 of the assembled teeth 5 are then extracted by means of cord 7 out of the second section, so as to obtain the comb 1 shown in FIG. figure 1 .
  • the cord 7 may be replaced by a cord made of any other material expandable under the effect of a heat treatment.
  • the bead is inserted in a compressed state inside the orifices 57 of the teeth 5, then its volume expansion is obtained by a suitable heat treatment so as to immobilize the ends 55 of the teeth 5 in the desired configuration.
  • the comb 1 obtained is light and compact. This results in easier assembly of the comb 1 on a loom, with a limited risk of breaking the warp son during assembly of the comb.
  • the teeth 5 are rigidly joined together and with the profile 3, which ensures good mechanical strength of the comb 1 in operation.
  • the loom comb 101 of this second embodiment is intended to equip an air jet type loom, wherein the weft yarns are driven by an air jet substantially perpendicular to the warp yarns.
  • the comb 101 comprises two sections 103 with a U-shaped cross-section, the openings of which are arranged facing one another, and a row of teeth 105, capped at their ends by the two sections 103 and oriented substantially perpendicular to each other. to these profiles.
  • Each tooth 105 of the comb 101 is an elongate blade delimited by two longitudinal edges 152 and two transverse edges 154.
  • One of the longitudinal edges 152 is substantially rectilinear, while the longitudinal edge 152 opposite has two protuberances 156 and 158, which define between them a notch 159 intended to be aligned with the notches 159 of the other teeth 105 for the passage of the entrainment air stream of the weft son.
  • the two sections 103 of the comb 101 are identical.
  • Each section 103 is monobloc and has internal grooves 139 formed opposite each other in pairs on the two branches 131A and 131B of the U, substantially perpendicular to a longitudinal axis X 103 of the section 103.
  • Each groove 139 of the branch 131A or 131B of a profile 103 extends between an internal clearance 137 and the respective free edge 135A or 135B of the branch considered.
  • the free edge 135A of the branch 131A of each profile 103 is further away from the bottom 133 of the profile than the free edge 135B of the branch 131 B.
  • the branch 131A has a height greater than that of the branch 131 B.
  • the grooves 139 of each section 103 have a V-shaped cross section and are arranged on each leg 131A or 131B in a similar manner to the first embodiment, the two grooves 139 of a pair of grooves being identical.
  • the depth h of the grooves 139 may vary from one groove to another, as well as the pitch p spacing between two grooves 139 consecutive.
  • Each end 151 or 155 of a tooth 105 is provided respectively with an orifice 153 or 157 disposed in the vicinity of a transverse edge 154 but not opening at this edge, in the alignment of the corresponding orifices of the other teeth 105.
  • the alignment of the orifices 153 and the alignment of the orifices 157 extend substantially parallel to the longitudinal axis X 103 of each profile 103.
  • a method of manufacturing the comb 101 according to this second embodiment of the invention comprises steps in which:
  • each pair of internal grooves 139 is machined in the branches 131A and 131B of each U-shaped section 103.
  • This machining is performed analogously to the first embodiment, by means of a tool comprising two cutting edges. opposite V-shaped and digitally controlled.
  • the two sections 103 are positioned vis-à-vis one with respect to the other in a template, the openings of the two U-shaped sections 103 facing one another.
  • each tooth 105 previously cut in a flat sheet metal according to the desired shape and treated by polishing, is then inserted into a groove 139 of the highest branch 131A of one of the profiles 103 and the end is inserted.
  • One of the ends 151 or 155 of each tooth 105 may also be slightly inserted in the groove 139 matched the branch 131B of the profile 103 corresponding for better maintenance of each tooth 105 between the two profiles.
  • the profiles 103 are brought closer to each other in the direction of the arrows F 2 of the figure 6 . This approximation continues until the transverse edges 154 of each tooth 105 comes against the bottom 133 of the profiles 103, the longitudinal edges 152 of each tooth 105 being received, in the vicinity of the ends 151 and 155, in a pair of grooves 139 of each profile 103.
  • the pre-positioning of the teeth 105 by relative to the profiles 103 and the approximation of the profiles 103 can be made fully automated manner.
  • the insertion of the teeth 105 in the grooves 139 is performed with or without clearance, the teeth 105 being clamped between the branches of the profiles 103 when a game is provided.
  • the assembly obtained at the end of this step which comprises the two sections 103 and the teeth 105, has good cohesion and can be stored or handled easily, which is advantageous in the context of a manufacturing process. automated.
  • a two-component adhesive is introduced into each of the profiles 103, respectively at the orifices 153 or 157 of each tooth 105, by means of a cannula which circulates inside the orifices 153 or 157 aligned with the teeth 105. Then, as in the first embodiment, the polymerization of the adhesive is obtained by heating in an oven.
  • a comb 1 or 101 of a loom according to the invention is light and compact, which is advantageous for its mounting on a loom.
  • Such a comb 1 or 101 also has good impact resistance thanks to the rigid attachment of the teeth 5 or 105 between them and with the profiles 3 or 103.
  • a comb in accordance with the invention can be obtained in a totally automated manner, the method of manufacturing such a comb also making it possible to obtain precise positioning of the teeth of the comb.
  • a comb 1 or 101 according to the invention may comprise teeth of different thicknesses, arranged at different spacings.
  • a comb according to the invention can thus be used with warp yarns of different types on a loom and / or makes it possible to vary the density of the warp yarns along the insertion axis of the weft yarns.
  • a comb according to the invention can be adapted to equip any type of loom, the geometry of the teeth and U-shaped profiles of the teeth being optimized according to the application.
  • the internal grooves of a U-shaped section of a comb according to the invention may not be perpendicular to the longitudinal axis of the profile but extend, more generally, in any other transverse direction relative to to this axis.
  • the end of a tooth of a comb according to the invention can also be inserted laterally into a single internal groove of the corresponding U-profile, which is then provided on only one branch of the profile.
  • the internal grooves of a U-shaped section may be of any suitable form different from the V-shape described above, the tool used for machining the grooves being adapted accordingly.
  • the tooth be clamped between the branches of the profile to ensure its positioning.
  • the tooth can be clamped in the groove or grooves, the pinching of the tooth between the branches of the profile is then not essential.
  • the internal grooves machining tool may have only one cutting edge, especially in the case where each tooth of the comb is inserted laterally into a single groove.
  • Such a tool with a single cutting edge can however also be used for machining pairs of grooves vis-à-vis the two branches of a U-profile, the grooves of each branch of the U-profile then being machined independently of each other.
  • the joining of the ends of the teeth with the corresponding profile can also be obtained by means of an adhesive material other than an adhesive two-component as described above, for example by means of an air-dry glue.
  • the transverse edge of each end of a tooth inserted in a profile may also not be in contact with the bottom of the section, but disposed at a distance from this bottom.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

The reed (101) has a row of splits (105) rigidly assembled between them and with a filament yarn (103) that is monoblock, where the filament yarn has a U shaped transversal section. An end (151) of each split is received in the filament yarn. The filament yarn has internal grooves (139) arranged on U shaped arms (131A, 131B) perpendicular with respect to a longitudinal axis (X103) of the filament yarn, where each groove has a V shaped transversal section. The end is laterally inserted in the grooves, where the reed is made of an adhesive which connects the end with the filament yarn. An independent claim is also included for a method for manufacturing a loom reed.

Description

La présente invention a trait à un peigne de métier à tisser et à un procédé de fabrication d'un tel peigne.The present invention relates to a loom comb and a method of making such a comb.

Dans le domaine du tissage, les fils de trame doivent être pressés, peu après leur insertion dans la foule, contre le tissu déjà produit, afin de conférer une régularité satisfaisante au tissu réalisé. A cet effet, il est connu d'équiper un métier à tisser d'un peigne monté sur un battant animé d'un mouvement alternatif rapide permettant au peigne de venir battre les fils de trame. Un tel peigne est formé par la juxtaposition et l'assemblage de dents, l'espace ménagé entre chaque couple de dents adjacentes étant destiné au passage d'un ou plusieurs fils de chaîne. Il est nécessaire d'avoir un positionnement précis des dents les unes par rapport aux autres afin de ne pas générer de défauts d'aspect dans le tissu.In the field of weaving, the weft yarns must be pressed, shortly after insertion into the shed, against the fabric already produced, in order to confer a satisfactory regularity on the fabric produced. For this purpose, it is known to equip a loom with a comb mounted on a flap with a fast reciprocating movement allowing the comb to come beat the weft son. Such a comb is formed by the juxtaposition and assembly of teeth, the space between each pair of adjacent teeth being intended for the passage of one or more warp son. It is necessary to have a precise positioning of the teeth relative to each other so as not to generate appearance defects in the fabric.

DE-A-2 127 209 décrit un peigne de métier à tisser dans lequel le positionnement des dents est obtenu en insérant chaque extrémité d'une dent entre deux spires d'un ressort. Les extrémités des dents ainsi positionnées sont coiffées, avec leurs ressorts de positionnement, par des profilés à section transversale en U, la cohésion de l'ensemble étant assurée par l'introduction de colle dans les profilés. Dans ce dispositif, l'espacement des dents est déterminé par le diamètre du fil constitutif de chaque ressort de positionnement. Il en résulte que la précision du positionnement des dents dépend de la qualité des ressorts. En particulier, une variation locale du diamètre du fil constitutif des ressorts est susceptible d'entraîner une erreur d'espacement entre deux dents et de créer un décalage sur l'ensemble des dents suivantes. Par ailleurs, comme le positionnement des dents dépend du diamètre du fil constitutif des ressorts, il est nécessaire de changer de ressorts pour obtenir une densité différente des dents du peigne. Enfin, le procédé de fabrication d'un tel peigne à ressorts de positionnement impose l'écartement des spires des ressorts pour le placement des dents. Dès lors, il est difficile de mettre en oeuvre ce procédé de manière automatisée. DE-A-2 127 209 describes a loom comb in which the positioning of the teeth is obtained by inserting each end of a tooth between two turns of a spring. The ends of the teeth thus positioned are capped, with their positioning springs, by U-section profiles, the cohesion of the assembly being ensured by the introduction of glue into the profiles. In this device, the spacing of the teeth is determined by the diameter of the constituent wire of each positioning spring. As a result, the accuracy of the positioning of the teeth depends on the quality of the springs. In particular, a local variation in the diameter of the constituent wire of the springs is likely to cause a spacing error between two teeth and to create a shift on all subsequent teeth. Moreover, since the positioning of the teeth depends on the diameter of the constituent wire of the springs, it is necessary to change the springs to obtain a different density of the teeth of the comb. Finally, the method of manufacturing such a positioning springs comb imposes the spacing of the turns of the springs for the placement of the teeth. Therefore, it is difficult to implement this method in an automated manner.

Par ailleurs, US-A-2 914 094 décrit un peigne de métier à tisser comprenant, sur une portion du peigne, un organe à section en U de réception d'une extrémité de chacune des dents de la portion de peigne. L'organe à section en U comprend deux parties à section en L comportant chacune, sur la barre verticale du L, des rainures destinées à être dirigées vers l'intérieur du U. Le positionnement relatif des dents est obtenu en insérant l'extrémité de chaque dent latéralement dans des rainures des parties à section en L. Dans ce dispositif, les dents de la portion de peigne sont amovibles et les deux parties à section en L sont immobilisées contre les bords latéraux des dents et l'une par rapport à l'autre au moyen d'un système de boulon. Dès lors, le procédé de fabrication de cette portion de peigne est relativement complexe, et difficile à mettre en oeuvre de manière automatisée.Otherwise, US-A-2 914 094 discloses a loom comb comprising, on a portion of the comb, a U-shaped member for receiving an end of each of the teeth of the comb portion. The U-section member comprises two L-section portions each having, on the vertical bar of the L, grooves intended to be directed towards the inside of the U. The relative positioning of the teeth is obtained by inserting the end of each tooth laterally in grooves of the L-section portions. In this device, the teeth of the comb portion are removable and the two L-section portions are immobilized against the lateral edges of the teeth and one relative to the other. other by means of a bolt system. Therefore, the method of manufacturing this comb portion is relatively complex, and difficult to implement in an automated manner.

C'est à ces inconvénients qu'entend plus particulièrement remédier l'invention en proposant un peigne de métier à tisser qui peut être obtenu par un procédé de fabrication automatisé et pour lequel le positionnement des dents est précis et facilement modifiable, en vue d'une variation de la densité des dents.It is these drawbacks that the invention more particularly intends to remedy by proposing a loom comb that can be obtained by an automated manufacturing method and for which the positioning of the teeth is precise and easily modifiable, with a view to a variation in the density of the teeth.

A cet effet, l'invention a pour objet un peigne de métier à tisser, comprenant au moins un profilé à section transversale en U et une rangée de dents orientées transversalement par rapport au profilé, une extrémité de chaque dent étant reçue dans le profilé, caractérisé en ce que le profilé comporte des rainures internes ménagées sur au moins une des deux branches du U, transversalement par rapport à un axe longitudinal du profilé, et en ce que l'extrémité précitée de chaque dent est insérée latéralement dans au moins une rainure du profilé, le peigne comprenant un matériau adhésif qui solidarise l'extrémité précitée de chaque dent avec le profilé.For this purpose, the subject of the invention is a comb of a loom, comprising at least one U-shaped cross-section profile and a row of teeth oriented transversely to the profile, one end of each tooth being received in the profile, characterized in that the profile has internal grooves formed on at least one of the two branches of the U, transversely to a longitudinal axis of the profile, and in that the aforesaid end of each tooth is inserted laterally into at least one groove of the profile, the comb comprising an adhesive material which secures the aforementioned end of each tooth with the profile.

Selon d'autres caractéristiques avantageuses de l'invention :

  • le ou chaque profilé est monobloc ;
  • chaque rainure du profilé est à section transversale en V ;
  • le pas d'écartement entre les rainures du profilé est variable le long du profilé ;
  • la profondeur des rainures du profilé est variable ;
  • les rainures du profilé sont agencées en vis-à-vis par paires sur les deux branches du U, l'extrémité précitée de chaque dent étant insérée latéralement dans une paire de rainures du profilé ;
  • l'extrémité précitée de chaque dent comporte un orifice disposé dans l'alignement, selon une direction parallèle à l'axe longitudinal du profilé, des orifices des extrémités correspondantes des autres dents;
  • la ou chaque branche du profilé en U qui est pourvue de rainures comporte un dégagement interne au voisinage du fond du profilé, chaque rainure étant ménagée sur une portion de cette branche comprise entre le dégagement et le bord libre de la branche ;
  • le bord libre de l'une des branches du profilé en U est plus éloigné du fond du profilé que le bord libre de l'autre branche du profilé;
  • une deuxième extrémité de chaque dent, opposée à la première extrémité précitée reçue dans le profilé, est assemblée avec les deuxièmes extrémités des autres dents au moyen d'un cordon de matériau expansible qui passe dans un orifice de la deuxième extrémité et dans les orifices alignés des deuxièmes extrémités des autres dents.
According to other advantageous features of the invention:
  • the or each profile is monobloc;
  • each groove of the profile is V-shaped cross-section;
  • the spacing pitch between the grooves of the profile is variable along the profile;
  • the depth of the grooves of the profile is variable;
  • the grooves of the profile are arranged vis-a-vis in pairs on the two branches of the U, the aforementioned end of each tooth being inserted laterally into a pair of grooves of the profile;
  • the aforesaid end of each tooth comprises an orifice disposed in alignment, in a direction parallel to the longitudinal axis of the profile, orifices of the corresponding ends of the other teeth;
  • the or each branch of the U-shaped section which is provided with grooves has an internal clearance in the vicinity of the bottom of the profile, each groove being provided on a portion of this branch between the clearance and the free edge of the branch;
  • the free edge of one of the branches of the U-profile is further away from the bottom of the profile than the free edge of the other branch of the profile;
  • a second end of each tooth, opposite the aforesaid first end received in the profile, is assembled with the second ends of the other teeth by means of a bead of expandable material which passes through an orifice of the second end and into the aligned orifices second ends of the other teeth.

L'invention a également pour objet un procédé de fabrication d'un peigne de métier à tisser tel que décrit ci-dessus, comprenant des étapes dans lesquelles :

  • on usine les rainures internes dans au moins une des deux branches du profilé en U ;
  • on insère latéralement l'extrémité précitée de chaque dent dans au moins une rainure du profilé.
The invention also relates to a method of manufacturing a loom comb as described above, comprising steps in which:
  • the internal grooves are machined in at least one of the two branches of the U-profile;
  • the aforementioned end of each tooth is inserted laterally into at least one groove of the profile.

Ce procédé de fabrication peut comprendre une étape supplémentaire dans laquelle:

  • on introduit un matériau adhésif dans le profilé au niveau de l'orifice de l'extrémité précitée de chaque dent, au moyen d'une canule qui circule à l'intérieur des orifices alignés des dents.
This manufacturing method may comprise an additional step in which:
  • an adhesive material is introduced into the profile at the orifice of the aforementioned end of each tooth, by means of a cannula which circulates inside the aligned orifices of the teeth.

Ce procédé de fabrication peut également comprendre d'autres étapes supplémentaires dans lesquelles :

  • on insère latéralement la deuxième extrémité de chaque dent dans au moins une rainure correspondante d'un deuxième profilé à section transversale en U, analogue au profilé de réception de la première extrémité précitée de chaque dent ;
  • on introduit un cordon comprimé de matériau expansible dans les orifices alignés des deuxièmes extrémités des dents ;
  • on obtient une expansion volumique du cordon par traitement thermique ;
  • on extrait les deuxièmes extrémités des dents assemblées au moyen du cordon hors du deuxième profilé en U.
This manufacturing method may also comprise other additional steps in which:
  • the second end of each tooth is inserted laterally into at least one corresponding groove of a second section section transverse U-shaped, similar to the receiving profile of the aforementioned first end of each tooth;
  • a compressed bead of expandable material is introduced into the aligned orifices of the second ends of the teeth;
  • a volumic expansion of the bead is obtained by heat treatment;
  • the second ends of the assembled teeth are extracted by means of the cord from the second U-shaped section.

Enfin, l'invention a pour objet un procédé de fabrication d'un peigne de métier à tisser tel que décrit ci-dessus, comportant deux profilés à section transversale en U, ce procédé comprenant des étapes dans lesquelles :

  • on pré-positionne les deux extrémités de chaque dent par rapport aux deux profilés en insérant partiellement ces extrémités dans des rainures des profilés ;
  • on rapproche les deux profilés l'un de l'autre.
Finally, the subject of the invention is a method for manufacturing a loom comb as described above, comprising two U-shaped section sections, this process comprising steps in which:
  • pre-positioning the two ends of each tooth relative to the two sections by partially inserting these ends in grooves of the profiles;
  • the two profiles are brought closer to one another.

Les caractéristiques et avantages de l'invention apparaîtront dans la description qui va suivre de deux modes de réalisation d'un peigne de métier à tisser et d'un procédé de fabrication selon l'invention, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés dans lesquels:

  • la figure 1 est une vue en perspective partielle d'un peigne de métier à tisser conforme à un premier mode de réalisation de l'invention ;
  • la figure 2 est une vue de côté du peigne de la figure 1, lors d'une étape de fabrication du peigne mettant en jeu un deuxième profilé en U ;
  • la figure 3 est une vue analogue à la figure 2 et à plus grande échelle du profilé du peigne visible aux figures 1 et 2 ;
  • la figure 4 est une vue partielle selon la flèche IV de la figure 3 ;
  • la figure 5 est une vue en perspective partielle d'un peigne de métier à tisser conforme à un deuxième mode de réalisation de l'invention ;
  • la figure 6 est une vue de côté du peigne de la figure 5, lors d'une première étape de fabrication du peigne ; et
  • la figure 7 est une vue analogue à la figure 6, lors d'une deuxième étape de fabrication du peigne.
The features and advantages of the invention will appear in the following description of two embodiments of a loom comb and a manufacturing method according to the invention, given solely by way of example and made in referring to the accompanying drawings in which:
  • the figure 1 is a partial perspective view of a loom comb according to a first embodiment of the invention;
  • the figure 2 is a side view of the comb of the figure 1 during a step of manufacturing the comb involving a second U-shaped profile;
  • the figure 3 is a view similar to the figure 2 and on a larger scale the profile of the comb visible to figures 1 and 2 ;
  • the figure 4 is a partial view along arrow IV of the figure 3 ;
  • the figure 5 is a partial perspective view of a loom comb according to a second embodiment of the invention;
  • the figure 6 is a side view of the comb of the figure 5 during a first step of making the comb; and
  • the figure 7 is a view similar to the figure 6 during a second stage of manufacture of the comb.

Le peigne 1 de métier à tisser représenté à la figure 1 est destiné à équiper un métier à tisser de type trameur à ruban. Le peigne 1 comprend un profilé 3 à section transversale en U et une rangée de dents 5 identiques entre elles, orientées sensiblement perpendiculairement par rapport au profilé 3. Le profilé 3 est destiné à l'assemblage des dents 5 et coiffe une première extrémité 51 de chaque dent 5.The loom comb 1 shown in FIG. figure 1 is intended to equip a weaving loom type ribbon framer. The comb 1 comprises a profile 3 with a U-shaped cross-section and a row of teeth 5 identical to each other, oriented substantially perpendicular to the profile 3. The profile 3 is intended for the assembly of the teeth 5 and covers a first end 51 of each tooth 5.

De manière avantageuse, le profilé 3 est monobloc et constitué en un alliage métallique léger, notamment à base d'aluminium. Comme visible sur la figure 2, chaque dent 5 est une lame de forme allongée et rectangulaire, découpée dans une tôle plane et ayant subi un polissage. Chaque dent 5 est délimitée par deux arêtes longitudinales 52 et deux arêtes transversales 54. Les deux extrémités 51 et 55 de chaque dent 5 comportent respectivement un orifice 53 ou 57 globalement circulaire, qui est débouchant au niveau de l'arête transversale 54 voisine.Advantageously, the section 3 is monobloc and consists of a light metal alloy, in particular based on aluminum. As visible on the figure 2 each tooth 5 is a blade of elongate and rectangular shape, cut in a flat sheet and polished. Each tooth 5 is delimited by two longitudinal edges 52 and two transverse edges 54. The two ends 51 and 55 of each tooth 5 respectively comprise a generally circular orifice 53 or 57, which is opening at the neighboring transverse edge 54.

L'extrémité 51 de chaque dent 5 est reçue dans le volume intérieur du profilé 3 en U, les arêtes longitudinales 52 de la dent 5 étant disposées contre les branches 31 du profilé 3, alors que l'arête transversale 54 de l'extrémité 51 est disposée contre le fond 33 du profilé 3.The end 51 of each tooth 5 is received in the inner volume of the U-shaped section 3, the longitudinal edges 52 of the tooth 5 being disposed against the branches 31 of the profile 3, while the transverse edge 54 of the end 51 is arranged against the bottom 33 of the profile 3.

Plus spécifiquement, les arêtes 52 de chaque dent 5 sont reçues dans une paire de rainures internes 39 du profilé 3 ménagées en vis-à-vis sur les deux branches 31 du U, sensiblement perpendiculairement par rapport à un axe longitudinal X3 du profilé 3. Comme montré sur la figure 4, chaque rainure 39 est à section transversale en V, les deux rainures 39 d'une paire de rainures étant identiques. La profondeur h des rainures 39 peut varier d'une rainure à une autre, de même que le pas p d'écartement entre deux rainures 39 consécutives d'une même branche 31 du profilé 3. A titre d'exemple, la figure 4 montre des première et deuxième séries de paires de rainures 39 du profilé 3, dans lesquelles la profondeur h de chaque rainure 39 a respectivement une première valeur h 1 et une deuxième valeur h 2, alors que le pas p entre deux rainures 39 consécutives d'une branche 31 a respectivement une valeur p 1 dans la première série et une valeur p 2 dans la deuxième série.More specifically, the edges 52 of each tooth 5 are received in a pair of internal grooves 39 of the profile 3 formed vis-à-vis the two branches 31 of the U, substantially perpendicular to a longitudinal axis X 3 of the profile 3 As shown on the figure 4 each groove 39 is of V cross section, the two grooves 39 of a pair of grooves being identical. The depth h of the grooves 39 may vary from one groove to another, as can the pitch p between two consecutive grooves 39 of one and the same branch 31 of the profile 3. By way of example, the figure 4 shows first and second sets of pairs of grooves 39 of the profile 3, in which the depth h of each groove 39 has respectively a first value h 1 and a second value h 2 , while the pitch p between two consecutive grooves 39 of a branch 31 has respectively a value p 1 in the first series and a value p 2 in the second series.

Chaque branche 31 du profilé 3 comporte un dégagement interne 37 au voisinage du fond 33 du profilé. Chaque rainure 39 d'une branche 31 du profilé 3 s'étend entre ce dégagement 37 et le bord libre 35 de la branche 31.Each branch 31 of the profile 3 comprises an internal clearance 37 in the vicinity of the bottom 33 of the profile. Each groove 39 of a branch 31 of the section 3 extends between this clearance 37 and the free edge 35 of the branch 31.

En pratique, le profil de chaque paire de rainures 39 est adapté à l'épaisseur de la dent 5 qui est insérée latéralement dans cette paire de rainures, de telle sorte que le fond et les côtés des rainures 39 assurent le positionnement géométrique de la dent 5 par rapport au profilé 3. L'extrémité 51 de chaque dent 5 est insérée dans la paire de rainures 39 correspondante avec ou sans jeu. Les extrémités 51 des dents 5, correctement positionnées par rapport au profilé 3, sont solidarisées avec le profilé 3 au moyen d'une colle 8 qui, à l'état polymérisé, ferme latéralement le profilé 3 au voisinage des extrémités 51 des deux dents 5 extrêmes du peigne 1.In practice, the profile of each pair of grooves 39 is adapted to the thickness of the tooth 5 which is inserted laterally into this pair of grooves, so that the bottom and the sides of the grooves 39 ensure the geometric positioning of the tooth The end 51 of each tooth 5 is inserted into the pair of grooves 39 corresponding with or without play. The ends 51 of the teeth 5, correctly positioned relative to the profile 3, are secured to the profile 3. by means of an adhesive 8 which, in the polymerized state, laterally closes the profile 3 in the vicinity of the ends 51 of the two extreme teeth of the comb 1.

Dans ce premier mode de réalisation, les deuxièmes extrémités 55 des dents 5 sont assemblées au moyen d'un cordon 7 en matériau polymère à mémoire de forme, de section circulaire, qui passe dans les orifices 57 des extrémités 55 et garantit un alignement correct des dents 5 au niveau de leurs extrémités 55. A titre d'exemple, le matériau constitutif du cordon 7 peut être un polymère à mémoire de forme du type acrylique hydrophobe réticulé, dont la température de transition vitreuse ou température de ramollissement peut être déterminée par l'ajustement de la composition des monomères.In this first embodiment, the second ends 55 of the teeth 5 are assembled by means of a bead 7 made of a shape memory polymer material, of circular section, which passes through the orifices 57 of the ends 55 and ensures a correct alignment of the At their ends 55, for example, the constituent material of the bead 7 may be a cross-linked hydrophobic acrylic type shape-memory polymer, the glass transition temperature or softening temperature of which may be determined by means of FIG. adjustment of the composition of the monomers.

Un procédé de fabrication du peigne 1 conforme à l'invention comprend des étapes dans lesquelles :A method of manufacturing the comb 1 according to the invention comprises steps in which:

Tout d'abord, on usine chaque paire de rainures internes 39 dans les branches 31 du profilé 3, au moyen d'un outil non représenté comportant deux arêtes coupantes opposées ayant une forme de V. Cet outil est introduit entre les branches 31 du profilé 3 dans le sens de la flèche F1 de la figure 3, l'obtention des rainures 39 pouvant nécessiter plusieurs passages de l'outil à l'intérieur du profilé 3. Lorsque l'outil est associé à une machine à commande numérique, il est possible de programmer la profondeur h de chaque rainure 39 et le pas p entre deux rainures 39 consécutives d'une même branche 31 du profilé 3. L'usinage des rainures 39 peut dès lors être totalement automatisé et réalisé avec une bonne productivité. Les dégagements 37 des branches 31 du profilé 3 permettent de définir une zone évasée à l'intérieur du profilé 3, qui facilite l'évacuation de copeaux de matière générés lors de l'usinage des rainures 39.Firstly, each pair of internal grooves 39 is machined in the branches 31 of the section 3, by means of a not shown tool comprising two opposite cutting edges having a V-shape. This tool is introduced between the branches 31 of the profile. 3 in the direction of the arrow F 1 of the figure 3 , obtaining the grooves 39 that may require several passes of the tool inside the profile 3. When the tool is associated with a numerically controlled machine, it is possible to program the depth h of each groove 39 and the not p between two consecutive grooves 39 of the same branch 31 of the profile 3. The machining grooves 39 can therefore be fully automated and performed with good productivity. The clearances 37 of the branches 31 of the section 3 make it possible to define a flared zone inside the profile 3, which facilitates the evacuation of material chips generated during the machining of the grooves 39.

Lorsque les rainures 39 ont été usinées dans les branches 31 du profilé 3, on insère l'extrémité 51 de chaque dent 5, préalablement découpée dans une tôle plane selon la forme souhaitée et traitée par polissage, dans une paire de rainures 39 correspondante, de telle sorte que les arêtes longitudinales 52 et transversale 54 de la dent 5 sont disposées respectivement contre les branches 31, à l'intérieur des rainures 39, et contre le fond 33 du profilé 3. L'insertion de chaque dent 5 dans une paire de rainures 39 est réalisée avec ou sans jeu. En particulier, lorsqu'un jeu est prévu, le positionnement de la dent 5 dans le profilé 3 est assuré par pincement de la dent 5 entre les branches 31 du profilé. La forme en V des rainures 39 permet alors un maintien de la dent 5 contre les bords des rainures en V, sans nécessiter de serrage de la dent dans les rainures.When the grooves 39 have been machined in the branches 31 of the profile 3, the end 51 of each tooth 5, previously cut in a flat sheet metal according to the desired shape and polished, is inserted in a pair of grooves 39 corresponding to such that the longitudinal 52 and transverse edges 54 of the tooth 5 are respectively disposed against the branches 31, inside the grooves 39, and against the bottom 33 of the profile 3. The insertion of each tooth 5 in a pair of grooves 39 is made with or without clearance. In particular, when a play is provided, the positioning of the tooth 5 in the section 3 is provided by pinching the tooth 5 between the branches 31 of the profile. The V-shaped grooves 39 then allows a maintenance of the tooth 5 against the edges of the V-shaped grooves, without the need to clamp the tooth in the grooves.

A l'issue de cette étape, l'ensemble formé par le profilé 3 et la rangée de dents 5 insérées dans les rainures 39 est facilement manipulable, notamment par des robots, dans le cadre d'un procédé de fabrication totalement automatisé. Toutefois, la manipulation de l'ensemble formé par le profilé 3 et les dents 5 insérées dans les rainures 39 est d'autant plus aisée que les dents 5 sont enserrées dans les rainures 39 et entre les branches 31 du profilé 3.At the end of this step, the assembly formed by the profile 3 and the row of teeth 5 inserted into the grooves 39 is easily manipulated, in particular by robots, as part of a fully automated manufacturing process. However, the manipulation of the assembly formed by the profile 3 and the teeth 5 inserted in the grooves 39 is all the easier as the teeth 5 are gripped in the grooves 39 and between the branches 31 of the profile 3.

On coiffe ensuite les extrémités 55 des dents 5 au moyen d'un deuxième profilé 9 à section transversale en U, représenté en traits mixtes uniquement à la figure 2 et analogue au profilé 3, en insérant l'extrémité 55 de chaque dent 5 dans une paire de rainures correspondante du deuxième profilé 9. Ainsi, un espacement correct des dents 5 est assuré au niveau de leurs deux extrémités 51 et 55.The ends 55 of the teeth 5 are then capped by means of a second profile 9 with a U cross-section, shown in phantom lines only at the figure 2 and similar to the profile 3, inserting the end 55 of each tooth 5 in a corresponding pair of grooves of the second profile 9. Thus, a correct spacing of the teeth 5 is ensured at their two ends 51 and 55.

On introduit alors une colle 8 bi-composant dans le profilé 3 au niveau de l'orifice 53 de l'extrémité 51 de chaque dent 5, au moyen d'une canule qui circule à l'intérieur des orifices 53 alignés. L'utilisation d'une telle canule garantit une bonne diffusion de la colle à l'intérieur du profilé 3.A two-component adhesive 8 is then introduced into the section 3 at the orifice 53 of the end 51 of each tooth 5, by means of a cannula which circulates inside the aligned orifices 53. The use of such a cannula ensures good diffusion of the glue inside the profile 3.

On introduit également un cordon 7 de matériau polymère à mémoire de forme, par exemple constitué en un polymère acrylique hydrophobe réticulé tel que décrit précédemment, dans les orifices 57 alignés des extrémités 55 des dents 5. Pour son introduction dans les orifices 57, le cordon 7 est maintenu dans un état comprimé et aplati de manière à être facilement insérable à travers l'embouchure de chaque orifice 57 débouchant au niveau de l'arête transversale 54 associée à l'extrémité 55 de chaque dent 5.A cord 7 of polymeric shape memory material, for example made of a crosslinked hydrophobic acrylic polymer as described above, is also introduced into the orifices 57 aligned with the ends 55 of the teeth 5. For its introduction into the orifices 57, the cord 7 is held in a compressed and flattened state so as to be easily insertable through the mouth of each orifice 57 opening at the transverse edge 54 associated with the end 55 of each tooth 5.

L'ensemble ainsi obtenu, qui comprend le profilé 3 comportant la colle 8 bi-composant, les dents 5, le cordon 7 comprimé et le deuxième profilé 9, est alors placé dans une étuve. On obtient ainsi, par chauffage à une température adaptée, la polymérisation de la colle 8 bi-composant, de sorte que les dents 5 sont fixées rigidement à l'intérieur du profilé 3. Simultanément, sous l'effet du chauffage, on obtient une expansion volumique du cordon 7 de matériau polymère à mémoire de forme, qui retrouve son volume initial et immobilise les extrémité 55 des dents 5 en respectant l'espacement imposé par le deuxième profilé 9. On extrait alors les extrémités 55 des dents 5 assemblées au moyen du cordon 7 hors du deuxième profilé, de manière à obtenir le peigne 1 représenté sur la figure 1.The assembly thus obtained, which comprises the profile 3 comprising the bicomponent adhesive 8, the teeth 5, the compressed cord 7 and the second section 9, is then placed in an oven. Thus, by heating at a suitable temperature, the polymerization of the two-component adhesive 8 is obtained, so that the teeth 5 are fixed rigidly inside the profile 3. Simultaneously, under the effect of the heating, one obtains a volume expansion of the cord 7 of shape memory polymer material, which regains its initial volume and immobilizes the end 55 of the teeth 5 respecting the spacing imposed by the second profile 9. The ends 55 of the assembled teeth 5 are then extracted by means of cord 7 out of the second section, so as to obtain the comb 1 shown in FIG. figure 1 .

En variante, le cordon 7 peut être remplacé par un cordon constitué en tout autre matériau expansible sous l'effet d'un traitement thermique. Comme dans le cas d'un cordon en matériau polymère à mémoire de forme, le cordon est inséré dans un état comprimé à l'intérieur des orifices 57 des dents 5, puis on obtient son expansion volumique par un traitement thermique approprié de manière à immobiliser les extrémités 55 des dents 5 dans la configuration souhaitée.Alternatively, the cord 7 may be replaced by a cord made of any other material expandable under the effect of a heat treatment. As in the case of a bead of shape memory polymer material, the bead is inserted in a compressed state inside the orifices 57 of the teeth 5, then its volume expansion is obtained by a suitable heat treatment so as to immobilize the ends 55 of the teeth 5 in the desired configuration.

Grâce aux matériaux constitutifs du profilé 3 et des dents 5 et à l'assemblage des extrémités 55 des dents 5 au moyen du cordon 7 de matériau polymère à mémoire de forme, le peigne 1 obtenu est léger et compact. Il en résulte un montage facilité du peigne 1 sur un métier à tisser, avec un risque limité de rupture des fils de chaîne lors du montage du peigne. De plus, les dents 5 sont assemblées rigidement entre elles et avec le profilé 3, ce qui garantit une bonne tenue mécanique du peigne 1 en fonctionnement.Thanks to the constituent materials of the profile 3 and the teeth 5 and the assembly of the ends 55 of the teeth 5 by means of the cord 7 of shape memory polymer material, the comb 1 obtained is light and compact. This results in easier assembly of the comb 1 on a loom, with a limited risk of breaking the warp son during assembly of the comb. In addition, the teeth 5 are rigidly joined together and with the profile 3, which ensures good mechanical strength of the comb 1 in operation.

Dans le deuxième mode de réalisation représenté aux figures 5 à 7, les éléments analogues au premier mode de réalisation portent des références identiques augmentées de 100. Le peigne 101 de métier à tisser de ce deuxième mode de réalisation est destiné à équiper un métier à tisser de type à jet d'air, dans lequel les fils de trame sont entraînés par un jet d'air sensiblement perpendiculairement par rapport aux fils de chaîne. Le peigne 101 comprend deux profilés 103 à section transversale en U, dont les ouvertures sont disposées en regard l'une de l'autre, et une rangée de dents 105, coiffées à leurs extrémités par les deux profilés 103 et orientées sensiblement perpendiculairement par rapport à ces profilés.In the second embodiment shown in Figures 5 to 7 the elements similar to the first embodiment bear identical references increased by 100. The loom comb 101 of this second embodiment is intended to equip an air jet type loom, wherein the weft yarns are driven by an air jet substantially perpendicular to the warp yarns. The comb 101 comprises two sections 103 with a U-shaped cross-section, the openings of which are arranged facing one another, and a row of teeth 105, capped at their ends by the two sections 103 and oriented substantially perpendicular to each other. to these profiles.

Chaque dent 105 du peigne 101 est une lame de forme allongée délimitée par deux arêtes longitudinales 152 et deux arêtes transversales 154. L'une des arêtes longitudinales 152 est sensiblement rectiligne, alors que l'arête longitudinale 152 opposée comporte deux protubérances 156 et 158, qui définissent entre elles une encoche 159 destinée à être alignée avec les encoches 159 des autres dents 105 pour le passage de la veine d'air d'entraînement des fils de trame.Each tooth 105 of the comb 101 is an elongate blade delimited by two longitudinal edges 152 and two transverse edges 154. One of the longitudinal edges 152 is substantially rectilinear, while the longitudinal edge 152 opposite has two protuberances 156 and 158, which define between them a notch 159 intended to be aligned with the notches 159 of the other teeth 105 for the passage of the entrainment air stream of the weft son.

Les deux profilés 103 du peigne 101 sont identiques. Chaque profilé 103 est monobloc et comporte des rainures internes 139 ménagées en vis-à-vis par paires sur les deux branches 131A et 131B du U, sensiblement perpendiculairement par rapport à un axe longitudinal X103 du profilé 103. Chaque rainure 139 de la branche 131A ou 131 B d'un profilé 103 s'étend entre un dégagement interne 137 et le bord libre respectif 135A ou 135B de la branche considérée. Le bord libre 135A de la branche 131A de chaque profilé 103 est plus éloigné du fond 133 du profilé que le bord libre 135B de la branche 131 B. En d'autres termes, la branche 131A présente une hauteur supérieure à celle de la branche 131 B.The two sections 103 of the comb 101 are identical. Each section 103 is monobloc and has internal grooves 139 formed opposite each other in pairs on the two branches 131A and 131B of the U, substantially perpendicular to a longitudinal axis X 103 of the section 103. Each groove 139 of the branch 131A or 131B of a profile 103 extends between an internal clearance 137 and the respective free edge 135A or 135B of the branch considered. The free edge 135A of the branch 131A of each profile 103 is further away from the bottom 133 of the profile than the free edge 135B of the branch 131 B. In other words, the branch 131A has a height greater than that of the branch 131 B.

Les rainures 139 de chaque profilé 103 ont une section transversale en V et sont agencées sur chaque branche 131A ou 131 B de manière analogue au premier mode de réalisation, les deux rainures 139 d'une paire de rainures étant identiques. En particulier, la profondeur h des rainures 139 peut varier d'une rainure à une autre, de même que le pas p d'écartement entre deux rainures 139 consécutives.The grooves 139 of each section 103 have a V-shaped cross section and are arranged on each leg 131A or 131B in a similar manner to the first embodiment, the two grooves 139 of a pair of grooves being identical. In particular, the depth h of the grooves 139 may vary from one groove to another, as well as the pitch p spacing between two grooves 139 consecutive.

Comme montré plus particulièrement sur la figure 7, une première extrémité 151 de chaque dent 105 est insérée latéralement dans une paire de rainures 139 de l'un des profilés 103, alors que la deuxième extrémité 155 de chaque dent 105 est insérée latéralement dans une paire de rainures 139 correspondante de l'autre profilé 103. Pour chaque dent 105, le profil des deux paires de rainures 139 dans lesquelles elle est insérée est adapté à l'épaisseur de la dent 105. Dans la configuration insérée, les arêtes longitudinales 152 de chaque dent 105 sont disposées contre les branches 131A et 131 B des deux profilés 103, alors que les arêtes transversales 154 sont disposées chacune contre le fond 133 de l'un des profilés 103. Chaque extrémité 151 ou 155 d'une dent 105 est pourvue respectivement d'un orifice 153 ou 157, disposé au voisinage d'une arête transversale 154 mais non débouchant au niveau de cette arête, dans l'alignement des orifices correspondants des autres dents 105. L'alignement des orifices 153 et l'alignement des orifices 157 s'étendent sensiblement parallèlement à l'axe longitudinal X103 de chaque profilé 103.As shown more particularly on the figure 7 a first end 151 of each tooth 105 is inserted laterally into a pair of grooves 139 of one of the profiles 103, while the second end 155 of each tooth 105 is inserted laterally into a pair of grooves 139 corresponding to the other section 103. For each tooth 105, the profile of the two pairs of grooves 139 in which it is inserted is adapted to the thickness of the tooth 105. In the inserted configuration, the longitudinal edges 152 of each tooth 105 are arranged against the branches 131A and 131B of the two sections 103, while the transverse edges 154 are each disposed against the bottom 133 of one of the profiles 103. Each end 151 or 155 of a tooth 105 is provided respectively with an orifice 153 or 157 disposed in the vicinity of a transverse edge 154 but not opening at this edge, in the alignment of the corresponding orifices of the other teeth 105. The alignment of the orifices 153 and the alignment of the orifices 157 extend substantially parallel to the longitudinal axis X 103 of each profile 103.

Un procédé de fabrication du peigne 101 conforme à ce deuxième mode de réalisation de l'invention comprend des étapes dans lesquelles :A method of manufacturing the comb 101 according to this second embodiment of the invention comprises steps in which:

Tout d'abord, on usine chaque paire de rainures internes 139 dans les branches 131A et 131 B de chaque profilé 103 en U. Cet usinage est réalisé de manière analogue au premier mode de réalisation, au moyen d'un outil comportant deux arêtes coupantes opposées en forme de V et commandé numériquement.Firstly, each pair of internal grooves 139 is machined in the branches 131A and 131B of each U-shaped section 103. This machining is performed analogously to the first embodiment, by means of a tool comprising two cutting edges. opposite V-shaped and digitally controlled.

Ensuite, on positionne les deux profilés 103 en vis-à-vis l'un par rapport à l'autre dans un gabarit, les ouvertures des deux profilés 103 en U étant en regard l'une de l'autre.Next, the two sections 103 are positioned vis-à-vis one with respect to the other in a template, the openings of the two U-shaped sections 103 facing one another.

On insère alors l'extrémité 151 de chaque dent 105, préalablement découpée dans une tôle plane selon la forme souhaitée et traitée par polissage, dans une rainure 139 de la plus haute branche 131A de l'un des profilés 103 et on insère l'extrémité 155 de chaque dent 105 dans une rainure 139 correspondante de la plus haute branche 131A de l'autre profilé 103. Une des extrémités 151 ou 155 de chaque dent 105 peut également être légèrement insérée dans la rainure 139 appariée de la branche 131B du profilé 103 correspondant pour un meilleur maintien de chaque dent 105 entre les deux profilés.The end 151 of each tooth 105, previously cut in a flat sheet metal according to the desired shape and treated by polishing, is then inserted into a groove 139 of the highest branch 131A of one of the profiles 103 and the end is inserted. 155 of each tooth 105 in a corresponding groove 139 of the highest branch 131A of the other profile 103. One of the ends 151 or 155 of each tooth 105 may also be slightly inserted in the groove 139 matched the branch 131B of the profile 103 corresponding for better maintenance of each tooth 105 between the two profiles.

Lorsque toutes les dents 105 sont ainsi pré-positionnées, les profilés 103 sont rapprochés l'un de l'autre dans le sens des flèches F2 de la figure 6. Ce rapprochement se poursuit jusqu'à ce que les arêtes transversales 154 de chaque dent 105 viennent contre le fond 133 des profilés 103, les arêtes longitudinales 152 de chaque dent 105 étant reçues, au voisinage des extrémités 151 et 155, dans une paire de rainures 139 de chaque profilé 103. Le pré-positionnement des dents 105 par rapport aux profilés 103 et le rapprochement des profilés 103 peuvent être réalisés de manière totalement automatisée. De façon similaire au premier mode de réalisation, l'insertion des dents 105 dans les rainures 139 est réalisée avec ou sans jeu, les dents 105 étant pincées entre les branches des profilés 103 lorsqu'un jeu est prévu.When all the teeth 105 are thus pre-positioned, the profiles 103 are brought closer to each other in the direction of the arrows F 2 of the figure 6 . This approximation continues until the transverse edges 154 of each tooth 105 comes against the bottom 133 of the profiles 103, the longitudinal edges 152 of each tooth 105 being received, in the vicinity of the ends 151 and 155, in a pair of grooves 139 of each profile 103. The pre-positioning of the teeth 105 by relative to the profiles 103 and the approximation of the profiles 103 can be made fully automated manner. Similarly to the first embodiment, the insertion of the teeth 105 in the grooves 139 is performed with or without clearance, the teeth 105 being clamped between the branches of the profiles 103 when a game is provided.

L'ensemble obtenu à l'issue de cette étape, qui comprend les deux profilés 103 et les dents 105, présente une bonne cohésion et peut être stocké ou manipulé de manière aisée, ce qui est avantageux dans le cadre d'un procédé de fabrication automatisé.The assembly obtained at the end of this step, which comprises the two sections 103 and the teeth 105, has good cohesion and can be stored or handled easily, which is advantageous in the context of a manufacturing process. automated.

Lorsque les dents 105 sont ainsi insérées par rapport aux deux profilés 103 du peigne 101, on introduit une colle bi-composant dans chacun des profilés 103, au niveau respectivement des orifices 153 ou 157 de chaque dent 105, au moyen d'une canule qui circule à l'intérieur des orifices 153 ou 157 alignés des dents 105. Puis, comme dans le premier mode de réalisation, on obtient la polymérisation de la colle par chauffage dans une étuve.When the teeth 105 are thus inserted relative to the two profiles 103 of the comb 101, a two-component adhesive is introduced into each of the profiles 103, respectively at the orifices 153 or 157 of each tooth 105, by means of a cannula which circulates inside the orifices 153 or 157 aligned with the teeth 105. Then, as in the first embodiment, the polymerization of the adhesive is obtained by heating in an oven.

Comme il ressort des premier et deuxième modes de réalisation décrits, un peigne 1 ou 101 de métier à tisser conforme à l'invention est léger et compact, ce qui est avantageux pour son montage sur un métier à tisser. Un tel peigne 1 ou 101 présente également une bonne résistance aux chocs grâce à la fixation rigide des dents 5 ou 105 entre elles et avec les profilés 3 ou 103.As is apparent from the first and second embodiments described, a comb 1 or 101 of a loom according to the invention is light and compact, which is advantageous for its mounting on a loom. Such a comb 1 or 101 also has good impact resistance thanks to the rigid attachment of the teeth 5 or 105 between them and with the profiles 3 or 103.

Par ailleurs, comme il ressort des étapes des procédés de fabrication des peignes 1 et 101 décrits ci-dessus, un peigne conforme à l'invention peut être obtenu de manière totalement automatisée, le procédé de fabrication d'un tel peigne permettant également d'obtenir un positionnement précis des dents du peigne. En outre, grâce à l'usinage sous commande numérique des rainures 39 ou 139 des profilés en U, il est possible de faire varier la profondeur h d'une rainure à une autre, ainsi que le pas p d'écartement entre deux rainures consécutives d'une branche de profilé. Dès lors, un peigne 1 ou 101 conforme à l'invention peut comporter des dents d'épaisseurs différentes, disposées selon des espacements différents. Un peigne conforme à l'invention peut ainsi être utilisé avec des fils de chaîne de types différents sur un métier à tisser et/ou permet de faire varier la densité des fils de chaîne suivant l'axe d'insertion des fils de trame.Furthermore, as can be seen from the steps of the processes for manufacturing the combs 1 and 101 described above, a comb in accordance with the invention can be obtained in a totally automated manner, the method of manufacturing such a comb also making it possible to obtain precise positioning of the teeth of the comb. In addition, by machining under numerical control grooves 39 or 139 of the U-shaped profiles, it is possible to vary the depth h from one groove to another, and the spacing p between two consecutive grooves of a branch of profile. Therefore, a comb 1 or 101 according to the invention may comprise teeth of different thicknesses, arranged at different spacings. A comb according to the invention can thus be used with warp yarns of different types on a loom and / or makes it possible to vary the density of the warp yarns along the insertion axis of the weft yarns.

L'invention n'est pas limitée aux exemples décrits et représentés. En particulier, un peigne conforme à l'invention peut être adapté pour équiper tout type de métier à tisser, la géométrie des dents et des profilés en U de support des dents étant optimisée en fonction de l'application.The invention is not limited to the examples described and shown. In particular, a comb according to the invention can be adapted to equip any type of loom, the geometry of the teeth and U-shaped profiles of the teeth being optimized according to the application.

De plus, les rainures internes d'un profilé en U d'un peigne conforme à l'invention peuvent ne pas être perpendiculaires à l'axe longitudinal du profilé mais s'étendre, de manière plus générale, selon toute autre direction transversale par rapport à cet axe.In addition, the internal grooves of a U-shaped section of a comb according to the invention may not be perpendicular to the longitudinal axis of the profile but extend, more generally, in any other transverse direction relative to to this axis.

Selon une variante non représentée de l'invention, l'extrémité d'une dent d'un peigne conforme à l'invention peut également n'être insérée latéralement que dans une seule rainure interne du profilé en U correspondant, qui est alors ménagée sur une seule branche du profilé.According to a variant not shown of the invention, the end of a tooth of a comb according to the invention can also be inserted laterally into a single internal groove of the corresponding U-profile, which is then provided on only one branch of the profile.

En outre, les rainures internes d'un profilé en U peuvent être de toute forme appropriée différente de la forme en V décrite précédemment, l'outil utilisé pour l'usinage des rainures étant adapté en conséquence. Lorsque la rainure ou la paire de rainures de réception d'une dent a une forme en V, il est préférable que la dent soit pincée entre les branches du profilé pour assurer son positionnement. En variante, lorsque la rainure ou la paire de rainures a une forme rectangulaire, la dent peut être serrée dans la ou les rainures, le pincement de la dent entre les branches du profilé n'étant alors pas indispensable.In addition, the internal grooves of a U-shaped section may be of any suitable form different from the V-shape described above, the tool used for machining the grooves being adapted accordingly. When the groove or the pair of tooth-receiving grooves has a V-shape, it is preferable that the tooth be clamped between the branches of the profile to ensure its positioning. Alternatively, when the groove or the pair of grooves has a rectangular shape, the tooth can be clamped in the groove or grooves, the pinching of the tooth between the branches of the profile is then not essential.

Par ailleurs, l'outil d'usinage des rainures internes peut ne présenter qu'une seule arête coupante, notamment dans le cas où chaque dent du peigne n'est insérée latéralement que dans une seule rainure. Un tel outil à une seule arête coupante peut cependant être également utilisé pour l'usinage de paires de rainures en vis-à-vis sur les deux branches d'un profilé en U, les rainures de chaque branche du profilé en U étant alors usinées indépendamment les unes des autres.Furthermore, the internal grooves machining tool may have only one cutting edge, especially in the case where each tooth of the comb is inserted laterally into a single groove. Such a tool with a single cutting edge can however also be used for machining pairs of grooves vis-à-vis the two branches of a U-profile, the grooves of each branch of the U-profile then being machined independently of each other.

La solidarisation des extrémités des dents avec le profilé correspondant peut également être obtenue au moyen d'un matériau adhésif autre qu'une colle bi-composant telle que décrite ci-dessus, par exemple au moyen d'une colle séchable à l'air. Selon une autre variante non représentée de l'invention, l'arête transversale de chaque extrémité d'une dent insérée dans un profilé peut également ne pas être au contact du fond du profilé, mais disposée à distance de ce fond.The joining of the ends of the teeth with the corresponding profile can also be obtained by means of an adhesive material other than an adhesive two-component as described above, for example by means of an air-dry glue. According to another variant not shown of the invention, the transverse edge of each end of a tooth inserted in a profile may also not be in contact with the bottom of the section, but disposed at a distance from this bottom.

Claims (14)

Peigne (1 ; 101) de métier à tisser, comprenant au moins un profilé (3 ; 103) à section transversale en U et une rangée de dents (5 ; 105) orientées transversalement par rapport au profilé, une extrémité (51 ; 151, 155) de chaque dent étant reçue dans le profilé, caractérisé en ce que le profilé (3 ; 103) comporte des rainures internes (39 ; 139) ménagées sur au moins une des deux branches (31 ; 131A, 131B) du U, transversalement par rapport à un axe longitudinal (X3 ; X103) du profilé, et en ce que ladite extrémité (51 ; 151, 155) de chaque dent est insérée latéralement dans au moins une rainure (39 ; 139) du profilé, le peigne (1 ; 101) comprenant un matériau adhésif (8) qui solidarise ladite extrémité (51 ; 151, 155) de chaque dent (5 ; 105) avec le profilé (3 ; 103).A loom comb (1; 101) comprising at least one U-shaped section section (3; 103) and a row of teeth (5; 105) oriented transversely of the profile, one end (51; 151; 155) of each tooth being received in the profile, characterized in that the profile (3; 103) has internal grooves (39; 139) formed on at least one of the two legs (31; 131A, 131B) of the U transversely relative to a longitudinal axis (X 3 ; X 103 ) of the profile, and in that said end (51; 151, 155) of each tooth is inserted laterally into at least one groove (39; 139) of the profile, the comb (1; 101) comprising an adhesive material (8) which secures said end (51; 151,155) of each tooth (5; 105) to the profile (3; 103). Peigne selon la revendication 1, caractérisé en ce que le ou chaque profilé (3 ; 103) est monobloc.Comb according to claim 1, characterized in that the or each section (3; 103) is in one piece. Peigne selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que chaque rainure (39 ; 139) du profilé (3 ; 103) est à section transversale en V.Comb according to any one of claims 1 or 2, characterized in that each groove (39; 139) of the profile (3; 103) is V-shaped cross-section. Peigne selon l'une quelconque des revendications précédentes, caractérisé en ce que le pas (p) d'écartement entre les rainures (39 ; 139) du profilé (3 ; 103) est variable (p 1, p 2) le long du profilé.Comb according to any one of the preceding claims, characterized in that the pitch ( p ) spacing between the grooves (39; 139) of the profile (3; 103) is variable ( p 1 , p 2 ) along the profile . Peigne selon l'une quelconque des revendications précédentes, caractérisé en ce que la profondeur (h) des rainures (39 ; 139) du profilé (3; 103) est variable (h 1, h 2).Comb according to any one of the preceding claims, characterized in that the depth ( h ) of the grooves (39; 139) of the profile (3; 103) is variable ( h 1 , h 2 ). Peigne selon l'une quelconque des revendications précédentes, caractérisé en ce que les rainures (39 ; 139) du profilé (3 ; 103) sont agencées en vis-à-vis par paires sur les deux branches (31 ; 131A, 131 B) du U, ladite extrémité (51 ; 151, 155) de chaque dent (5 ; 105) étant insérée latéralement dans une paire de rainures (39 ; 139) du profilé.Comb according to any one of the preceding claims, characterized in that the grooves (39; 139) of the profile (3; 103) are arranged opposite one another in pairs on the two branches (31; 131A, 131B). U, said end (51; 151,155) of each tooth (5; 105) being inserted laterally into a pair of grooves (39; 139) of the profile. Peigne selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite extrémité (51 ; 151, 155) de chaque dent (5 ; 105) comporte un orifice (53 ; 153, 157) disposé dans l'alignement, selon une direction parallèle à l'axe longitudinal (X3 ; X103) du profilé (3; 103), des orifices (53 ; 153, 157) des extrémités (51 ; 151, 155) correspondantes des autres dents (5 ; 105).Comb according to any of the preceding claims, characterized in that said end (51; 151,155) of each tooth (5; 105) has an orifice (53; 153,157) arranged in alignment in a direction parallel to the longitudinal axis (X 3 ; X 103 ) of the profile (3; 103), orifices (53; 153, 157) corresponding ends (51; 151, 155) of the other teeth (5; 105). Peigne selon l'une quelconque des revendications précédentes, caractérisé en ce que la ou chaque branche (31 ; 131A, 131 B) du profilé (3 ; 103) en U qui est pourvue de rainures (39 ; 139) comporte un dégagement interne (37 ; 137) au voisinage du fond (33 ; 133) du profilé, chaque rainure (39 ; 139) étant ménagée sur une portion de cette branche comprise entre le dégagement (37; 137) et le bord libre (35 ; 135A, 135B) de la branche.Comb according to any one of the preceding claims, characterized in that the or each leg (31; 131A, 131B) of the U-profile (3; 103) which is provided with grooves (39; 139) has an internal clearance ( 37; 137) in the vicinity of the bottom (33; 133) of the profile, each groove (39; 139) being provided on a portion of this branch between the clearance (37; 137) and the free edge (35; 135A, 135B); ) of the branch. Peigne selon l'une quelconque des revendications précédentes, caractérisé en ce que le bord libre (135A) de l'une des branches (131A) du profilé (103) en U est plus éloigné du fond (133) du profilé que le bord libre (135B) de l'autre branche (131 B) du profilé.Comb according to any one of the preceding claims, characterized in that the free edge (135A) of one of the branches (131A) of the U-profile (103) is further away from the bottom (133) of the profile than the free edge. (135B) of the other branch (131 B) of the profile. Peigne selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une deuxième extrémité (55) de chaque dent (5), opposée à ladite première extrémité (51) reçue dans le profilé (3), est assemblée avec les deuxièmes extrémités (55) des autres dents (5) au moyen d'un cordon (7) de matériau expansible qui passe dans un orifice (57) de la deuxième extrémité (55) et dans les orifices (57) alignés des deuxièmes extrémités (55) des autres dents.Comb according to any one of the preceding claims, characterized in that a second end (55) of each tooth (5), opposite said first end (51) received in the profile (3), is assembled with the second ends (55) other teeth (5) by means of a bead (7) of expandable material which passes into an orifice (57) of the second end (55) and into the aligned openings (57) of the second ends (55) other teeth. Procédé de fabrication d'un peigne (1 ; 101) de métier à tisser selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend des étapes dans lesquelles : - on usine les rainures internes (39 ; 139) dans au moins une des deux branches (31 ; 131A, 131B) du profilé (3; 103) en U ; - on insère latéralement ladite extrémité (51 ; 151, 155) de chaque dent (5 ; 105) dans au moins une rainure (39 ; 139) du profilé (3 ; 103). A method of manufacturing a loom comb (1; 101) according to any one of the preceding claims, characterized in that it comprises steps in which: the internal grooves (39; 139) are machined in at least one of the two branches (31; 131A, 131B) of the U-profile (3; said end (51; 151, 155) of each tooth (5; 105) is inserted laterally into at least one groove (39; 139) of the profile (3; 103). Procédé de fabrication selon la revendication 11 d'un peigne (1; 101) de métier à tisser selon la revendication 7, caractérisé en ce qu'il comprend une étape supplémentaire dans laquelle : - on introduit un matériau adhésif (8) dans le profilé (3 ; 103) au niveau de l'orifice (53 ; 153, 157) de ladite extrémité (51 ; 151, 155) de chaque dent (5 ; 105), au moyen d'une canule qui circule à l'intérieur des orifices alignés (53 ; 153, 157) des dents. Manufacturing method according to claim 11, characterized in that it comprises a supplementary step in which: an adhesive material (8) is introduced into the profile (3; 103) at the orifice (53; 153, 157) of said end (51; 151; 155) of each tooth (5; means of a cannula which circulates inside the aligned orifices (53; 153, 157) of the teeth. Procédé de fabrication selon l'une quelconque des revendications 11 ou 12 d'un peigne (1) de métier à tisser selon la revendication 10, caractérisé en ce qu'il comprend des étapes supplémentaires dans lesquelles : - on insère latéralement la deuxième extrémité (55) de chaque dent (5) dans au moins une rainure (39) correspondante d'un deuxième profilé (9) à section transversale en U, analogue au profilé (3) de réception de ladite première extrémité (51) de chaque dent ; - on introduit un cordon (7) comprimé de matériau expansible dans les orifices (57) alignés des deuxièmes extrémités (55) des dents (5); - on obtient une expansion volumique du cordon (7) par traitement thermique ; - on extrait les deuxièmes extrémités (55) des dents (5) assemblées au moyen du cordon (7) hors du deuxième profilé (9) en U. Manufacturing method according to any one of claims 11 or 12 of a comb (1) of a loom according to claim 10, characterized in that it comprises additional steps in which: the second end (55) of each tooth (5) is inserted laterally into at least one corresponding groove (39) of a second section (9) of U-shaped cross-section, similar to the profile (3) for receiving said first end (51) of each tooth; - A bead (7) compressed expansible material is introduced into the orifices (57) aligned with the second ends (55) of the teeth (5); a volume expansion of the bead (7) is obtained by heat treatment; the second ends (55) of the teeth (5) assembled by means of the cord (7) are extracted from the second U-profile (9). Procédé de fabrication selon l'une quelconque des revendications 11 ou 12 d'un peigne (101) de métier à tisser selon l'une quelconque des revendications 1 à 9, comportant deux profilé (103) à section transversale en U, caractérisé en ce qu'il comprend des étapes dans lesquelles : - on pré-positionne les deux extrémités (151, 155) de chaque dent (105) par rapport aux deux profilés (103) en insérant partiellement ces extrémités (151, 155) dans des rainures (139) des profilés (103); - on rapproche (F2) les deux profilés (103) l'un de l'autre. Manufacturing method according to any one of claims 11 or 12 of a comb (101) of a loom according to any one of claims 1 to 9, comprising two section (103) U-shaped cross-section, characterized in that that it includes steps in which: - Pre-positioning the two ends (151, 155) of each tooth (105) relative to the two sections (103) by partially inserting these ends (151, 155) in grooves (139) of the profiles (103); - We bring (F 2 ) the two profiles (103) from one another.
EP08356020A 2007-02-05 2008-02-04 Loom reed and method of manufacturing such a reed Active EP1953283B1 (en)

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FR0700798A FR2912155B1 (en) 2007-02-05 2007-02-05 WOVEN WORK COMB AND METHOD OF MANUFACTURING SUCH COMB

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JP5364554B2 (en) * 2009-12-11 2013-12-11 高山リード株式会社 筬
CN102619004A (en) * 2012-04-23 2012-08-01 常州钢筘有限公司 Special reed integral special reed piece for air-jet loom
CN105177841B (en) * 2015-09-29 2017-05-17 浙江理工大学 Profiled reed of air jet loom and air jet loom
EP3425095B1 (en) * 2017-07-07 2020-09-30 Groz-Beckert KG Reed and method for its production

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE64004C (en) * W. WENN in Aachen, Steinkaulstrafse 23 Weaving reed
US2914094A (en) 1958-03-18 1959-11-24 Whitaker Reed Company Loom reed having removable dents
DE2127209A1 (en) 1971-06-02 1973-02-08 Theodor Wagner Reed bar capsule - provided with reed bar locating spring recesses
US3746053A (en) * 1972-02-02 1973-07-17 Minnesota Mining & Mfg Loom reed
DE3623361A1 (en) * 1986-07-11 1988-01-21 Egelhaaf C C Fa WEB SHEET
US5029617A (en) * 1989-07-05 1991-07-09 Anderson Barbara C Reed with removable dents

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE64004C (en) * W. WENN in Aachen, Steinkaulstrafse 23 Weaving reed
US2914094A (en) 1958-03-18 1959-11-24 Whitaker Reed Company Loom reed having removable dents
DE2127209A1 (en) 1971-06-02 1973-02-08 Theodor Wagner Reed bar capsule - provided with reed bar locating spring recesses
US3746053A (en) * 1972-02-02 1973-07-17 Minnesota Mining & Mfg Loom reed
DE3623361A1 (en) * 1986-07-11 1988-01-21 Egelhaaf C C Fa WEB SHEET
US5029617A (en) * 1989-07-05 1991-07-09 Anderson Barbara C Reed with removable dents

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CN101240479A (en) 2008-08-13
ATE469255T1 (en) 2010-06-15
EP1953283B1 (en) 2010-05-26
JP2008240226A (en) 2008-10-09
DE602008001316D1 (en) 2010-07-08
FR2912155A1 (en) 2008-08-08

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