EP3109352B1 - Blade for moving hooks of a jacquard mechanism and jacquard mechanism comprising such a blade - Google Patents

Blade for moving hooks of a jacquard mechanism and jacquard mechanism comprising such a blade Download PDF

Info

Publication number
EP3109352B1
EP3109352B1 EP16175403.1A EP16175403A EP3109352B1 EP 3109352 B1 EP3109352 B1 EP 3109352B1 EP 16175403 A EP16175403 A EP 16175403A EP 3109352 B1 EP3109352 B1 EP 3109352B1
Authority
EP
European Patent Office
Prior art keywords
profile
blade
jacquard
blade according
jacquard mechanism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16175403.1A
Other languages
German (de)
French (fr)
Other versions
EP3109352A1 (en
Inventor
Patrice Przytarski
Sylvain Durand-Peyre
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.)
Staeubli Lyon SA
Original Assignee
Staeubli Lyon SA
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 Staeubli Lyon SA filed Critical Staeubli Lyon SA
Publication of EP3109352A1 publication Critical patent/EP3109352A1/en
Application granted granted Critical
Publication of EP3109352B1 publication Critical patent/EP3109352B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types
    • D03C3/26—General arrangements of jacquards, or disposition in relation to loom
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types
    • D03C3/32—Jacquard driving mechanisms
    • D03C3/36—Griffe operating mechanisms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/12—Multiple-shed jacquards, i.e. jacquards which move warp threads to several different heights, e.g. for weaving pile fabrics
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/20—Electrically-operated jacquards
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types
    • D03C3/40—Constructions of lifting-cords

Definitions

  • the invention relates to a blade for driving hooks which belong to a Jacquard mechanism and a Jacquard mechanism comprising such a blade.
  • a Jacquard machine is a device for forming the crowd on a Jacquard loom and comprises a series of blades, or knives, which are animated with an alternating vertical movement in opposition to the phase that is to say that when a blade is in the high position, the two blades which are adjacent to it are in the low position.
  • a multitude of hooks arranged in rows are able to cooperate with each blade.
  • the hooks of two adjacent blades are connected in pairs by a bead. The movement of the hooks is controlled by that of the blades and by a system of selective immobilization of the hooks, such as an electromagnet system.
  • a pulley system makes it possible to transmit the movement of each pair of hooks to a bar traversed by a warp thread. This then allows to create the crowd for the passage of a weft thread.
  • the blades of a Jacquard machine can reach four meters long for large format Jacquard machines.
  • the flexural rigidity of the blades is essential to ensure uniform hooking over the entire length of the blade.
  • the blades of a Jacquard mechanism are usually made in the form of an extruded aluminum profile, which is cut to the desired length and which is connected at its two longitudinal ends to a mechanism for transmitting the rotary movement of a input shaft, which mechanism comprises rotating shafts, rods, levers, claw frames and / or cams.
  • the height of the aluminum profile is chosen according to the fabric to be produced and the format of the Jacquard mechanism.
  • the aim of the invention is to reduce the mass of the blades of Jacquard mechanics, while guaranteeing their flexural rigidity, and to define a blade profile common to all Jacquard mechanical formats, that is to say to all formats. tissue.
  • the invention relates to a blade for driving mobile hooks that belong to a Jacquard mechanism, each movable hook being adapted to be immobilized by a selection device for determining the position of a warp on a loom. weave.
  • this blade comprises at least one profile in composite material, having a body consisting of unidirectional fibers which extend in the longitudinal direction of the profile and which are embedded in a resin.
  • the blades of Jacquard mechanics are lighter than aluminum blades and have a flexural rigidity equivalent to or greater than the latter.
  • the unidirectional reinforcing fibers confer a good rigidity and the mass of the blade can be reduced by a quarter or even half depending on the formats, compared to an aluminum blade, which is advantageous for an increase in speeds of operation of the Jacquard machine.
  • the invention makes it possible to use an identical blade height, regardless of the format of the Jacquard mechanism on which they are mounted, that is to say that the blades have a profile common to all the formats of Jacquard mechanics and that only the length of the blades is to be adapted according to the machine used.
  • a mold configured to manufacture a blade of maximum length can be used for the manufacture of the blades of a Jacquard machine of any format. The length of the blades is then adjusted by cutting if necessary.
  • a mold can also be used for each format of Jacquard machine. In this case, the blade leaves the mold directly with the right length.
  • the same die can be used for the manufacture of all the blades, regardless of the format of the Jacquard machine concerned.
  • the invention also relates to a Jacquard mechanism comprising a blade as defined above.
  • the Jacquard mechanism delimits several volumes of receiving Jacquard modules comprising the movable hooks, while the spacing between two rails on the blade is arranged longitudinally between two adjacent Jacquard modules receiving volumes.
  • the Jacquard mechanism 2 comprises an input main shaft (not shown) and a mechanism 6 for transmitting motion between the input shaft and a series of blades, or knives 12.
  • This mechanism 6 comprises two coaxial shafts 4, among which only the outer hollow shaft is visible at the figure 1 .
  • the shafts 4 are each driven with reciprocating movement about a longitudinal axis X4, which is horizontal in operation.
  • the mechanism 6 also comprises levers, slashes and rods 8 actuated by the rotation of the shafts 4.
  • the mechanism 6 forms a kinematic chain allowing, from the rotation of the input shaft, to move the blades 12 with a vertical reciprocating motion in opposition of phase.
  • a blade 12 when a blade 12 is in the high position, the two blades which are adjacent to it are in the low position.
  • the blades 12 are arranged head to tail next to each other.
  • a multitude of movable hooks 28 are mounted in pairs on each blade 12. A pair of these hooks 28 is visible only at the figure 4 .
  • the adjacent hooks 28 of two successive blades 12 are connected in pairs by a bead not shown.
  • the movement of the hooks 28 is controlled by that of the blades 12 and by a system for selectively immobilizing the hooks 28 not shown, such as an electromagnet system.
  • Each movable hook 28 is adapted to be immobilized by a selection device to determine the position of a warp on the loom.
  • a not shown pulley system makes it possible to transmit the movement of each set of hooks 28 adjacent to a not shown string traversed by a warp thread. This then allows to create the crowd for the passage of a weft thread.
  • the two adjacent hooks, the cord connecting them, the electromagnet system and the pulley system are part of a Jacquard module of the type described in EP1413657 .
  • Flanges 10 are fixed at regular intervals on the frame of the Jacquard machine.
  • the flanges 10 are arranged transversely to a longitudinal axis X12 along which each blade 12 extends.
  • the axis X12 is parallel to the axis X4.
  • Two successive flanges 10 can support Jacquard modules comprising the hooks 28 and delimit between them a volume V10 for receiving Jacquard modules.
  • L10 the length of a volume V10 along the axis X12.
  • the distance L10 corresponds substantially to the longitudinal distance between two successive flanges delimiting the same space V10 module receiving.
  • the flanges 10 are traversed by the blades 12.
  • the flanges 10 each delimit a series of vertical openings 100 for passage of the blades 12.
  • the blades 12 are connected to the transmission mechanism 6 by means of rods 8 arranged at each of their longitudinal ends.
  • a blade 12 of the Jacquard machine 2 is better visible Figures 2 to 4 .
  • a single blade 12 of the Jacquard machine 2 is described, knowing that all the other blades are identical, although this does not immediately show the figure 1 since they are arranged head to tail.
  • the longitudinal axis X12 defines the longitudinal direction of the profile 14 and the blade 12 which is mentioned several times in this document.
  • the longitudinal direction corresponds to the direction of the weft son on the Jacquard loom.
  • the blade 12 has a length L12 of 1.8 m but this length may vary depending on the format of the machine used from 1m up to 4m.
  • the blade 12 comprises a profile 14 of composite material having a body 140 consisting of unidirectional fibers F which extend in the longitudinal direction of the profile 14 and which are embedded in a resin R.
  • the unidirectional fibers F are said to be long because each fiber F extends substantially over the entire length of the body 140.
  • the profile 14 comprises two longitudinal ends E14 and two lateral faces S14.
  • the lateral direction is a direction perpendicular to the thickness of the blades 12, that is to say perpendicular to the longitudinal direction and the height of the blades 12.
  • the lateral direction corresponds to the direction of the warp yarns on the Jacquard loom.
  • the lateral faces S14 of the profile 14 are generally perpendicular to the lateral direction.
  • the unidirectional fibers F are represented by dots.
  • these fibers are carbon fibers and the resin R is an epoxy resin.
  • the epoxy resin R used has a hardener.
  • the terms "superior” and “inferior” are to be interpreted in a direction corresponding to the height of the body.
  • the body 140 of the profile 14 comprises a lower portion 140a having an end 140.2 shaped tip radiated, that is to say having a rounded shape.
  • the body 140 also includes an upper portion 140c driving the hooks 28, that is to say at which the hooks 28 cooperate with the blade, and an intermediate portion 140b connecting parts 140a and 140c.
  • the body 140 has a symmetrical profile with respect to a median plane P14 which cuts the body 140 in the middle of its thickness.
  • the body 140 is also symmetrical with respect to an unrepresented transverse plane intersecting the body 140 at mid-length.
  • the parts 140a to 140c are solid parts with a generally rectangular section, that is to say having no internal cavity, recess or outer notch, which are connected to each other.
  • the intermediate portion 140b is formed by a single central core, centered on the plane P14, and has a thickness e2 which is smaller than a thickness e1 of the upper portion 140c and less than a thickness e3 of the lower portion 140a.
  • the thicknesses e1 to e3 are measured perpendicularly to the axis X12 and to the height H12 of the blade 12.
  • the thickness e1 is 9mm
  • the thickness e2 is 4mm
  • the thickness e1 thus represents 30% at 60% of the thickness e2.
  • the intermediate portion 140b has a variable thickness
  • the thickness e2 is then the maximum thickness of the intermediate portion.
  • the section of the body 140 of the blade 12 has a height H14 of 220 mm.
  • the height H14 is more widely between 200 and 240 mm and is particularly suitable for all formats of Jacquard machines. This height H14 is much greater than the maximum thickness of the body 140, which in the example is the thickness e1 which is 9 mm.
  • the ratio between the height H14 of the body 140 and the maximum thickness of the body 140 is greater than 15, preferably greater than 20.
  • the height of the intermediate portion 140b is about 150 mm, or 60% to 80% of the height H14.
  • 140.1 is the connecting portion between the upper portion 140c driving the hooks 28 and the intermediate portion 140b, at which the body 140 varies in thickness, the thickness e1 to the thickness e2.
  • an intermediate portion of the profile 14 corresponds to the portion of the profile comprising the portion 140b of the body 140
  • an upper portion of the profile 14 corresponds to the portion of the profile comprising the portion 140c of the body 140
  • a lower part of the profile 14 corresponds to the portion of the profile comprising the portion 140a of the body 140.
  • Unidirectional fibers F are arranged in the upper, intermediate and lower portions of the profile 14.
  • the profile 14 comprises a fiber-based film which covers at least the junction portion 140.1 between the upper portion 140c and the intermediate portion 140b, on two lateral faces S140 of the body.
  • the film marries the entire outer periphery of the body 140 and forms an outer envelope 142 which is made of fiber fabric. glass.
  • the envelope 142 is woven, that is to say that it comprises glass fibers 142.1 which intertwine perpendicular to each other.
  • the fibers 142.1 are generally inclined each approximately 45 ° with respect to the longitudinal direction of the blade 12.
  • the outer envelope 142 is a nonwoven film based on carbon fibers. To the figure 3 , the envelope 142 is represented by broken lines in bold.
  • the casing 142 protects the fibers and resin of the body 140 from oils and other external agents. It also ensures the cohesion of the composite profile 14 which is fragile in a direction transverse to the unidirectional fibers, in particular in the thickness variation zones, and prevents delamination of the profile 14 when the hooks 28 rest on the blade 12. This has an advantage in particular when the support forces of the hooks 28 are not homogeneous over the entire length of the blade 12.
  • the profile 14 has a constant section along its length L14.
  • the blade 12 further comprises two fixing blocks 18 for attaching two links 8 of the transmission mechanism 6 to the blade 12. These fixing blocks 18 are fixed to the two longitudinal ends E14 of the profile 14, in particular by gluing. A fixing block 18 is better visible at the figure 5 . In what follows, only one of the two fixing blocks 18 of a blade 12 is described, the other block being identical.
  • the fixing block 18 has an upper end portion 18.1, a lower end portion 18.3 and a central body 18.2 connecting the parts 18.1 and 18.3.
  • the upper and lower end portions are to be considered in a direction corresponding to the height of the block 18 which corresponds to the direction of the height of the profile 14 when the block 18 is fixed to the profile 14.
  • the central body 18.2 is section in U, that is to say it has a bottom wall 180 and two side walls 182 which are parallel to each other. When the fixing block 18 is fixed on the profile 14, the side walls 182 extend parallel to the longitudinal direction of the profile 14 and are directed towards the latter, while the bottom wall 180 is perpendicular to the longitudinal axis X12 and is facing the longitudinal end surface E14.
  • the side walls 182 thus delimit internal lateral surfaces S182 which are each turned towards a lateral face S14 of the profile 14.
  • the bonding of the blocks 18 takes place on an external surface of the profile 14, that is to say on a surface delimiting the cross section of the profile over substantially its entire length L14.
  • the profile 14 thus has a constant section along its length L14, including at the longitudinal end portions of the profile which are opposite the side walls 182.
  • the rod 8 is fixed on the block 18 on the side opposite the profile 14, in the longitudinal direction, that is to say on the side of the outer surface of the bottom wall 180.
  • the body 18.2, and in particular the side walls 182, are offset longitudinally relative to the parts of the end 18.1 and 18.3, which delimit the total length L12 of the blade 12.
  • This longitudinal withdrawal is shown in FIG. figure 5 by the distance d1.
  • the longitudinal shrinkage d1 between the body 18.2 and the end portions 18.1 and 18.3 is caught up progressively at the junction between the body 18.2 and the end portions 18.1, 18.3.
  • the transmission of forces to the glue is carried out gradually when the Jacquard machine is started, that is to say when the blade 12 is set in motion by the mechanism 6.
  • the end portions 18.1 and 18.3 each have a through-hole, which is not visible at the figure 5 .
  • This hole opens, on the side of the composite material profile 14, in a recess 186, that is to say in a recess in the part 18.1 or 18.3.
  • a tapped insert 184 is inserted inside this hole and delimits a tapping O184 for receiving a not shown screw, for fixing the corresponding link 8.
  • the insert 184 is supported, that is to say it comprises a head intended to bear against the bottom of the recess 186.
  • This insert 184 is in practice mounted in force inside the hole.
  • the upper end portion 18.1 also defines a housing 188 for a not shown centering pin. This centering pin is intended to extend between the fixing block 18 and the rod 8 and allows precise positioning of the rod 8 with respect to the fixing block 18.
  • the fixing block 18 comprises at least one surface intended to be glued against a lateral face S14 of the profile 14. This makes it possible to size the bonding surface while avoiding adding space in the direction of the height and in the direction longitudinal.
  • the inner surface S182 of each side wall 182 is intended to be glued against a corresponding lateral face S14 of the profile 14, this at the intermediate portion of the profile.
  • the two lateral surfaces S182 extend in the longitudinal direction so as to define an optimal bonding surface, compatible with the forces to be transmitted to the profile 14. Moreover, this also makes it possible to limit the thickness of the walls 182.
  • the intermediate part of the profile 14 has a reduced thickness compared to the rest of the profile 14, the lateral space generated by the fixing of the blocks 18 on the profile 14 is compatible with the space provided for the positioning of the blades 12 in the jacquard machine 2.
  • the bulk of the blade 12 according to the invention is substantially equivalent to that of an aluminum blade of the state of the art, which allows their interchangeability and guarantees easy assembly of the blade 12 in the machine Jacquard.
  • the fact of using inserted intermediate pieces, namely the fixing blocks 18, for attaching the blade 12 to the mechanism 6 makes it possible to dissociate the rigidity and connection functions with the kinematics of the Jacquard 2 mechanism and to limit the impact of the connection on the flexural stiffness of the blade 12.
  • the carbon unidirectional fibers of the profile 14 which are arranged in the upper and lower portions of the profile 14 are preserved, which makes it possible to maintain a maximum of stiffness in flexion.
  • the blade 12 also comprises at least one rail 16 for interfacing with the hooks 28 of the Jacquard mechanism which is fixed in overlapping of the outer surface of the upper end of the profile 14. This makes it possible to dissociate the functions of rigidity and resistance.
  • the blade 12 comprises several metal interface rails 16, in particular of aluminum, which are distributed over the length of the profile 14 and which are spaced from each other with a longitudinal distance of 12 mm.
  • the use of several rails 16 distributed along the length makes it possible to limit the differential thermal expansion between the composite material of the profile 14 and the metal of the interface rails 16, when the operating temperature of the Jacquard machine is greater than the manufacturing temperature. of the blade 12. This thus avoids geometric deformations of the blade 12 which would not be compatible with the movement of the hooks 28 in the Jacquard machine.
  • Each rail 16 has a length L16 corresponding to the length L10 of a receiving volume V10 of Jacquard modules to extend continuously over the length on which the hooks 28 present in a jacquard module receiving volume cooperate with the blade 12
  • This length L16 is about 380 mm, with a tolerance of +/- 10 mm.
  • the spacing between two successive rails 16 thus represents approximately 2 to 10% of the length L16 of an interface rail 16.
  • the interface rails 16 have a U-shaped section with two branches 162 connected by a bottom wall 164 These interface rails 16 are intended to be fixed on the profile 14, in particular by gluing, around the upper part 140c of the body 140. When the rails 16 are mounted on the blade 12, the bottom of each rail 16 is turned.
  • each rail 16 comprises two inner side surfaces S16 intended to be glued against the surfaces S14 of the profile 14, at the level of the upper part thereof.
  • the bottom wall 164 of each rail 16 has, on its outer surface opposite the profile 14, notches 160 for optimized contact with the hooks 28.
  • the side walls 162 extend over the entire height of the hooks 28 when they are in contact with the bottom wall 162 and interpose between the hooks 28 and the profile 14 in the lateral direction to avoid contact of the hooks 28 with the profile 14.
  • the U-shaped geometry of each rail 16 allows a bonding of the rail with external surfaces of the profile 14, without machining the upper part of the profile and maintaining maximum rigidity for the profile.
  • the height H12 is substantially equal to the sum of the height H14 and the thickness of the bottom wall of the rail 16, with clearance or to the thickness of glue close between the upper end of the profile 14 and the wall of bottom 164 of the rail 16.
  • the blade 12 also comprises blade shoes 20 which are evenly distributed along the profile 14 with a spacing corresponding substantially to twice the length L10. These pads 20 serve to guide the blade 12 in its vertical reciprocating movement and cooperate with unrepresented guides fixed on the flanges 10.
  • Each pad 20 is bipartite, that is to say it comprises a portion 20a fixed on a side face S14 of the profile 14 and a portion 20b fixed on the other side.
  • the parts 20a and 20b are fixed to each other by screwing.
  • holes 144 are drilled through the intermediate portion of profile 14 for the passage of screws 22. These screws 22, which are two in number, are screwed through holes 144 into threads provided in part 20b. of the pad 20.
  • the last hole 144 formed in the profile 14 allows the precise positioning of the pad 20 on the profile 14.
  • Two shims 24 are interposed, on each side, between the lateral faces S14 of the profile 14 and the parts 20a and 20b of the pad 20. These wedges 24 make it possible to avoid damaging the profile 14 when fixing the pad 20.
  • a first step consists in the manufacture of the body 140 of the composite material profile 14.
  • the body 140 can be obtained by pultrusion, that is to say by the passage of pre-impregnated fibers in a long heated line which controls the content in resin and determines the shape of the section, or by molding.
  • the resin is polymerized during the pultrusion or molding operation and cures.
  • the film 142 is brought respectively directly in the pultrusion die or set up in the mold and adheres to the body 140 through the resin R during the polymerization.
  • the profile 14 When it is obtained by pultrusion, the profile 14 is cut to the length corresponding to the format of the Jacquard machine on which it will be mounted. After cutting, the longitudinal end surface E14 of the profile 14 extends substantially in the same plane perpendicular to the longitudinal direction X12. There is no other machining applied to the profile 14, so that the cohesion and rigidity of the profile 14 are preserved.
  • the profile 14 can be directly made to the length corresponding to the format of the Jacquard machine concerned.
  • the surfaces of the composite profile 14 which are intended to be bonded with the rails 16 on the one hand and with the fixing blocks 18 on the other hand, are prepared. These surfaces correspond to the lateral faces of the upper part of the profile 14 and to the longitudinal end portions of the lateral faces of the intermediate portion of the profile 14.
  • the preparation of the surfaces advantageously consists of a slight abrasion and then a degreasing before positioning the profile 14 in a tool not shown.
  • the profile 14 thus prepared is attached to this tool and the surfaces to be glued are glued with an epoxy adhesive on a few tens of millimeters thick.
  • the adhesive is, for example, a two-component epoxy adhesive adapted to the materials to be bonded, to the dimensions of the surfaces to be bonded and to the forces to be transmitted.
  • the epoxy adhesive has a tensile strength greater than 30 MPa and an elongation at break of the order of 3% .
  • the interface rails 16 are degreased at the inner surfaces S16 of the two branches to be glued. against the lateral faces S14 of the upper portion 140c of the profile 14. The rails 16 are placed in a longitudinal cap not shown, and spaced apart from each other in a position similar to that they must occupy relative to the flanges 10 when mounted in Jacquard mechanics 2.
  • the cap has positioning tabs which ensure the alignment of the rails 16 and the spacing between the rails 16.
  • the interface rails 16 are positioned with the free end of the branches which is directed downwards.
  • the inner side faces S16 of the two branches of the rail 16 are glued with an epoxy adhesive on a few tenths of a millimeter thick.
  • the interface rails 16 are then mounted around the upper end of the profile 14, with each inner lateral surface S16 facing one of the lateral faces S14 of the upper part of the profile 14 and the glue joints C2 between these surfaces. side.
  • the rails 16 are mounted without forcing, the excess glue is driven to the bottom of the rails 16, that is to say to the upper wall of the profile 14.
  • the cap is then attached to the tool.
  • the two fixing blocks 18 are each placed on a support not shown. For example, screws may be used to secure each fastener block 18 on its support.
  • the threads delimited by the inserts 186 may for example be used for fixing the block 18 on its support.
  • the inner side surfaces S182 of the body 18.2 of the two blocks 18 are degreased and then glued with epoxy glue.
  • the supports are put in place in the tooling, which makes it possible to control the longitudinal spacing between the two fixing blocks 18 in order to respect the length L12 of the blade and the position of the blocks 18 with respect to the profile 14 in the sense of height. This also makes it possible to ensure parallelism between the surfaces S14 and the surfaces S182 and between the two fixing blocks 18.
  • fixing blocks 18 comprise a body 18.2 U section placed around the ends E14 of the profile 14 allows to maintain access to the glue joints C during the bonding operation, in order to monitor the good distribution of the glue.
  • the assembly is maintained in the tooling during the polymerization time of the glue.
  • the profile 14, then equipped with the fixing blocks 18 and the rails 16 is removed from the tooling (the supports are detached from the blocks 18) and the shoes 20 are screwed onto the profile 14.
  • the holes formed in the profile 14 for fixing the pads 20 may be made independently before or after the gluing operations.
  • the blade 12 can then be put in place in the Jacquard mechanism between two links 8 connected to the input shaft of the Jacquard mechanism. Two screws each passing through a hole formed right through each rod 8 are tightened in the two threads 184, for fixing each corresponding rod 8 against the fixing block 18. Each spacing between two adjacent rails 16 of the blade 12 is then longitudinally disposed between two adjacent Jacquard modules receiving volumes in the longitudinal direction X12. In operation of the Jacquard machine, the mechanism 6, and in particular the rod 8 animated with a reciprocating vertical translation movement, moves the blade 12 through the glue joints C1 between blocks 18 and profile 14.
  • the fixing blocks 18 and the rails 16 can be fixed to the profile 14 other than by gluing, for example by screwing, by pinching or clipping.
  • the block / profile fixing is performed at a side face S14 of the profile 14 and a side wall of the fixing block 18 opposite.
  • the interface rails 16 are preferably fixed by gluing or by pinching so as not to alter the distribution of the long fibers in the upper or lower part of the profile 14, that is to say, where they have the greatest impact. on the flexural rigidity of the blade 12.
  • the blade 12 does not comprise fixing blocks 18 and each rod 8 is fixed to the profile 14 by pinching the longitudinal end E14 of the profile 14, in particular at the intermediate portion of the latter or by screwing into threaded inserts directly glued to profile 14.
  • the body 140 of the profile 14 incorporates unidirectional fibers other than carbon fibers, such as for example Kevlar fibers or glass fibers.
  • the hardened epoxy resin R of the profile 14 has a modulus of tensile strength greater than 3000 MPa, a tensile strength of between 60 MPa and 80 MPa and an elongation at break of about 4%.
  • the body 140 of the profile 14 is formed from a thermosetting resin R other than an epoxy resin, for example a polyester resin.
  • the outer casing 142 is bonded with an epoxy adhesive on the body 140 cured.
  • the bonding of the blocks 18 to the profile 14 is reinforced by screwing elements through the walls 182 and the body 140, that is to say in the transverse direction parallel to the profile thickness 14.
  • the profile 14 is composed of several bodies of composite material which are superimposed on each other and which extend in the longitudinal direction. These bodies are bonded together with connection spacers arranged at regular intervals. Each of these bodies consists of unidirectional fibers which extend in the longitudinal direction of the profile and which are embedded in a resin.
  • the interface rails 16, the fixing blocks 18 and / or the pads 20 can be directly overmolded during the manufacture of the profile 14. Geometries anchoring with the profile 14 can then be provided on the rails 16, on the blocks 18 and on the pads 20.
  • the intermediate portion 140b of the body 140 may be formed of two lateral flanks spaced from one another.
  • the hollow formed by these two lateral flanks can be left empty or filled with a light material, such as foam or basalt.
  • the lateral flanks of the intermediate portion 140b then delimit two internal lateral surfaces for bonding the fixing blocks 18. These two inner lateral surfaces are so-called external surfaces.
  • Each block 18 then has a single side wall 182 and an adhesive seal extends between each of the two side surfaces of the side wall 182 and the inner side surface of the profile 14 opposite.
  • the profile 14 thus has a constant section along its length L14, including at the longitudinal end portions of the profile which are facing the side walls 182 of the two blocks 18.
  • At least one of the fixing blocks 18 comprises one or more guide pads, similar to the pads 20.
  • At least one of the interface rails 16 comprises one or more guide pads, similar to the pads 20.
  • the interface rails 16 are attached to the lower part of the composite profile.
  • This configuration corresponds to a particular arrangement of the Jacquard modules with respect to the kinematics, in which it is the lower part of the profile 14 which drives the hooks 28.
  • the casing 142 is a woven film of polyester fibers, kevlar, or carbon or non-woven film fibers, which may be glass fibers, polyester, kevlar, or of carbon.
  • the envelope 142 differs from the structure used for the body 140, that is to say a structure based on unidirectional fibers in the longitudinal direction embedded in a resin.
  • each fixing block 18 has no bottom wall 180 at the two side walls 182.
  • the composite profile 14 defines, at each of its longitudinal ends, a groove, which extends at least at the level of the intermediate portion of the profile and opens on the longitudinal end surface E14 of the profile 14.
  • This groove then delimits two lateral faces which are fixed with a fixing block 18 provided with a single side wall 182 and having connecting means to the kinematic chain, that is to say the mechanism 6.
  • a fixing block 18 provided with a single side wall 182 and having connecting means to the kinematic chain, that is to say the mechanism 6.
  • an attachment by glue joints between the two side surfaces of the side wall 182 and the two side faces of the groove is preferred.
  • the blades 12 are attached to one or the other of two claw frames.
  • Each claw frame is animated by a movement of alternating vertical oscillations, in opposition to the other frame of claws, movement it transmits to the blades 12 they carry.
  • the claw frame is part of the mechanism 6.
  • the Jacquard mechanism comprises several input shafts (in the case of individual motors actuating each oblique bar, or even each blade), a mechanism 6 for transmitting the movement being then interposed between each input shaft and at least a blade 12.

Landscapes

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

Description

L'invention concerne une lame d'entraînement de crochets qui appartiennent à une mécanique Jacquard et une mécanique Jacquard comprenant une telle lame.The invention relates to a blade for driving hooks which belong to a Jacquard mechanism and a Jacquard mechanism comprising such a blade.

De manière connue, une mécanique Jacquard, ou machine Jacquard, est un dispositif de formation de la foule sur un métier à tisser de type Jacquard et comprend une série de lames, ou couteaux, qui sont animées avec un mouvement vertical alternatif en opposition de phase, c'est-à-dire que lorsqu'une lame est en position haute, les deux lames qui lui sont adjacentes sont en position basse. Une multitude de crochets disposés en rangées sont aptes à coopérer avec chaque lame. Les crochets de deux lames adjacentes sont reliés deux à deux par un cordon. Le déplacement des crochets est commandé par celui des lames et par un système d'immobilisation sélective des crochets, comme un système à électroaimant. Un système à poulie permet de transmettre le mouvement de chaque paire de crochets à une lisse traversée par un fil de chaîne. Cela permet alors de créer la foule pour le passage d'un fil de trame. Les lames d'une mécanique Jacquard peuvent atteindre quatre mètres de long pour les mécaniques Jacquard de grand format. La rigidité en flexion des lames est essentielle pour garantir un entraînement uniforme des crochets sur toute la longueur de la lame. Ainsi, les lames d'une mécanique Jacquard sont usuellement réalisées sous la forme d'un profil en aluminium extrudé, qui est découpé à la longueur désirée et qui est relié à ses deux extrémités longitudinales à un mécanisme de transmission du mouvement rotatif d'un arbre d'entrée, ce mécanisme comprenant des arbres rotatifs, des biellettes, des leviers, des cadres de griffes et/ou des cames. En outre, la hauteur du profil en aluminium est choisie en fonction du tissu à réaliser et du format de la mécanique Jacquard.In known manner, a Jacquard machine, or Jacquard machine, is a device for forming the crowd on a Jacquard loom and comprises a series of blades, or knives, which are animated with an alternating vertical movement in opposition to the phase that is to say that when a blade is in the high position, the two blades which are adjacent to it are in the low position. A multitude of hooks arranged in rows are able to cooperate with each blade. The hooks of two adjacent blades are connected in pairs by a bead. The movement of the hooks is controlled by that of the blades and by a system of selective immobilization of the hooks, such as an electromagnet system. A pulley system makes it possible to transmit the movement of each pair of hooks to a bar traversed by a warp thread. This then allows to create the crowd for the passage of a weft thread. The blades of a Jacquard machine can reach four meters long for large format Jacquard machines. The flexural rigidity of the blades is essential to ensure uniform hooking over the entire length of the blade. Thus, the blades of a Jacquard mechanism are usually made in the form of an extruded aluminum profile, which is cut to the desired length and which is connected at its two longitudinal ends to a mechanism for transmitting the rotary movement of a input shaft, which mechanism comprises rotating shafts, rods, levers, claw frames and / or cams. In addition, the height of the aluminum profile is chosen according to the fabric to be produced and the format of the Jacquard mechanism.

L'invention vise à réduire la masse des lames de la mécanique Jacquard, tout en garantissant leur rigidité en flexion, et à définir un profil de lame commun à tous les formats de mécanique Jacquard, c'est-à-dire à tous les formats de tissu.The aim of the invention is to reduce the mass of the blades of Jacquard mechanics, while guaranteeing their flexural rigidity, and to define a blade profile common to all Jacquard mechanical formats, that is to say to all formats. tissue.

DE-U-201 14 552 divulgue une lame de mécanique Jacquard selon le préambule de la revendication 1, c'est-à-dire une lame en matériau composite. Toutefois, ce document ne détaille pas la nature et l'arrangement des éléments constitutifs du matériau composite. DE-U-201 14,552 discloses a Jacquard mechanical blade according to the preamble of claim 1, that is to say a blade of composite material. However, this document does not detail the nature and arrangement of the constituent elements of the composite material.

A cet effet, l'invention concerne une lame d'entraînement de crochets mobiles qui appartiennent à une mécanique Jacquard, chaque crochet mobile étant apte à être immobilisé par un dispositif de sélection pour déterminer la position d'un fil de chaîne sur un métier à tisser. Conformément à l'invention, cette lame comprend au moins un profil en matériau composite, ayant un corps constitué de fibres unidirectionnelles qui s'étendent dans la direction longitudinale du profil et qui sont noyées dans une résine.To this end, the invention relates to a blade for driving mobile hooks that belong to a Jacquard mechanism, each movable hook being adapted to be immobilized by a selection device for determining the position of a warp on a loom. weave. According to the invention, this blade comprises at least one profile in composite material, having a body consisting of unidirectional fibers which extend in the longitudinal direction of the profile and which are embedded in a resin.

Grâce à l'utilisation d'un profil en matériau composite, les lames de la mécanique Jacquard sont plus légères que des lames en aluminium et présentent une rigidité en flexion équivalente ou supérieure à ces dernières. En effet, les fibres de renfort unidirectionnelles confèrent une bonne rigidité et la masse de la lame peut être réduite d'un quart, voire de moitié selon les formats, par rapport à une lame en aluminium, ce qui est avantageux pour une augmentation des vitesses de fonctionnement de la machine Jacquard. En outre, l'invention permet d'utiliser une hauteur de lames identique, quel que soit le format de la mécanique Jacquard sur lesquelles elles sont montées, c'est-à-dire que les lames présentent un profil commun à tous les formats de mécanique Jacquard et que seule la longueur des lames est à adapter en fonction de la machine utilisée. Ainsi, si les lames sont réalisées par moulage, un moule configuré pour fabriquer une lame de longueur maximale peut être utilisé pour la fabrication des lames d'une mécanique Jacquard de n'importe quel format. La longueur des lames est ensuite ajustée par découpage si cela est nécessaire. Un moule peut également être utilisé pour chaque format de machine Jacquard. Dans ce cas, la lame sort du moule directement avec la bonne longueur. De même, si les lames sont obtenues par pultrusion, une même filière peut être utilisée pour la fabrication de toutes les lames, quel que soit le format de la mécanique Jacquard concerné.Thanks to the use of a composite material profile, the blades of Jacquard mechanics are lighter than aluminum blades and have a flexural rigidity equivalent to or greater than the latter. Indeed, the unidirectional reinforcing fibers confer a good rigidity and the mass of the blade can be reduced by a quarter or even half depending on the formats, compared to an aluminum blade, which is advantageous for an increase in speeds of operation of the Jacquard machine. In addition, the invention makes it possible to use an identical blade height, regardless of the format of the Jacquard mechanism on which they are mounted, that is to say that the blades have a profile common to all the formats of Jacquard mechanics and that only the length of the blades is to be adapted according to the machine used. Thus, if the blades are made by molding, a mold configured to manufacture a blade of maximum length can be used for the manufacture of the blades of a Jacquard machine of any format. The length of the blades is then adjusted by cutting if necessary. A mold can also be used for each format of Jacquard machine. In this case, the blade leaves the mold directly with the right length. Similarly, if the blades are obtained by pultrusion, the same die can be used for the manufacture of all the blades, regardless of the format of the Jacquard machine concerned.

Selon des aspects avantageux mais non obligatoires de l'invention, une telle lame peut comporter une ou plusieurs des caractéristiques suivantes, prises dans toute combinaison techniquement admissible :

  • Le corps du profil comprend une partie supérieure, une partie intermédiaire et une partie inférieure, la partie intermédiaire présentant une âme centrale d'épaisseur inférieure à celle de la partie inférieure et/ou inférieure à celle de la partie supérieure.
  • Le profil comprend un film à base de fibres qui recouvre au moins une portion de variation d'épaisseur du corps.
  • Les fibres unidirectionnelles du corps du profil sont des fibres de carbone, et la résine est une résine époxyde.
  • La section transversale du profil est constante sur toute la longueur du profil.
  • La lame comprend en outre deux blocs de fixation à un mécanisme de transmission du mouvement de la mécanique Jacquard, les deux blocs étant fixés aux deux extrémités longitudinales du profil.
  • Chaque bloc de fixation comporte au moins une paroi latérale en regard d'une face latérale du profil pour la fixation de chaque bloc avec le profil.
  • Les deux blocs sont fixés au profil au moins par collage.
  • Chaque bloc de fixation comprend un corps à section en U, comportant une paroi de fond et deux parois latérales, les deux parois latérales comportant chacune une surface intérieure, la paroi de fond étant en regard de la surface d'extrémité longitudinale du profil, et un joint de colle s'étendant entre chaque surface intérieure et une face latérale du profil, au niveau de la partie intermédiaire du corps.
  • Chaque bloc de fixation comprend des parties d'extrémité supérieure et inférieure qui sont décalées longitudinalement par rapport à chaque paroi latérale et qui comprennent des moyens de fixation au mécanisme.
  • La lame comprend en outre au moins un rail d'interface longitudinal qui recouvre partiellement la surface extérieure du profil et qui est apte à coopérer avec les crochets mobiles de la mécanique Jacquard.
  • La lame comprend plusieurs rails d'interface métalliques répartis sur la longueur du profil et espacés les uns des autres.
  • Chaque rail d'interface est à section en U et est collé autour du profil.
According to advantageous but non-compulsory aspects of the invention, such a blade may include one or more of the following features, taken in any technically permissible combination:
  • The body of the profile comprises an upper part, an intermediate part and a lower part, the intermediate part having a central core of thickness less than that of the lower part and / or lower than that of the upper part.
  • The profile includes a fiber-based film that covers at least a portion of the thickness variation of the body.
  • The unidirectional fibers of the profile body are carbon fibers, and the resin is an epoxy resin.
  • The cross section of the profile is constant over the entire length of the profile.
  • The blade further comprises two fixing blocks to a mechanism for transmitting the movement of the Jacquard mechanism, the two blocks being fixed at both longitudinal ends of the profile.
  • Each fixing block comprises at least one side wall facing a side face of the profile for fixing each block with the profile.
  • The two blocks are attached to the profile at least by gluing.
  • Each fixing block comprises a U-shaped body having a bottom wall and two side walls, the two side walls each having an inner surface, the bottom wall facing the longitudinal end surface of the profile, and an adhesive seal extending between each inner surface and a side face of the profile, at the intermediate portion of the body.
  • Each attachment block comprises upper and lower end portions which are offset longitudinally with respect to each side wall and which include means for attachment to the mechanism.
  • The blade further comprises at least one longitudinal interface rail which partially overlaps the outer surface of the profile and which is adapted to cooperate with the movable hooks of the Jacquard mechanism.
  • The blade includes a plurality of metal interface rails distributed along the length of the profile and spaced from each other.
  • Each interface rail has a U-section and is glued around the profile.

L'invention concerne également une mécanique Jacquard comprenant une lame telle que définie précédemment.The invention also relates to a Jacquard mechanism comprising a blade as defined above.

Selon un aspect avantageux mais non obligatoire, la mécanique Jacquard délimite plusieurs volumes de réception de modules Jacquard comprenant les crochets mobiles, alors que l'espacement entre deux rails sur la lame est disposé longitudinalement entre deux volumes de réception de modules Jacquard adjacents.According to an advantageous but not mandatory aspect, the Jacquard mechanism delimits several volumes of receiving Jacquard modules comprising the movable hooks, while the spacing between two rails on the blade is arranged longitudinally between two adjacent Jacquard modules receiving volumes.

L'invention et d'autres avantages de celle-ci apparaitront plus clairement à la lumière de la description qui va suivre d'un mode de réalisation d'une lame de mécanique Jacquard conforme à son principe, donnée uniquement à titre d'exemple, et faite en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue en perspective d'une mécanique Jacquard comprenant des lames conformes à l'invention permettant chacune d'entraîner des crochets de la mécanique Jacquard,
  • la figure 2 est une vue éclatée d'une lame de la mécanique Jacquard de la figure 1 et du mécanisme de transmission (partiellement représenté),
  • la figure 3 est une coupe transversale d'un profil en matériau composite appartenant à la lame de la figure 2,
  • la figure 4 est une coupe transversale et à plus grande échelle, au niveau d'un patin, de la lame de la figure 2, dans laquelle deux crochets sont en outre représentés en configuration de coopération avec la lame,
  • la figure 5 est une vue en perspective d'un bloc de fixation d'une biellette de la mécanique Jacquard, ce bloc de fixation étant destiné à être disposé à une extrémité de la lame de la figure 2, et
  • la figure 6 est une coupe dans le plan VI de la figure 2.
The invention and other advantages thereof will appear more clearly in the light of the following description of an embodiment of a Jacquard mechanical blade according to its principle, given solely by way of example, and with reference to the accompanying drawings in which:
  • the figure 1 is a perspective view of a Jacquard mechanism comprising blades according to the invention each for driving hooks of the Jacquard mechanism,
  • the figure 2 is an exploded view of a blade of the Jacquard mechanics of the figure 1 and the transmission mechanism (partially shown),
  • the figure 3 is a cross section of a composite material profile belonging to the blade of the figure 2 ,
  • the figure 4 is a cross-section and on a larger scale, at the level of a skate, the blade of the figure 2 in which two hooks are furthermore shown in a configuration of cooperation with the blade,
  • the figure 5 is a perspective view of a fastening block of a link of the Jacquard mechanism, this fixing block being intended to be disposed at one end of the blade of the figure 2 , and
  • the figure 6 is a section in the plane VI of the figure 2 .

Sur la figure 1 est représentée une mécanique Jacquard 2, parfois dénommée machine Jacquard, permettant de former la foule appliquée aux fils de chaine d'un tissu en cours de tissage sur un métier à tisser. La mécanique Jacquard 2 comprend un arbre principal d'entrée (non représenté) et un mécanisme 6 de transmission du mouvement entre l'arbre d'entrée et une série de lames, ou couteaux 12. Ce mécanisme 6 comprend deux arbres coaxiaux 4, parmi lesquels seul l'arbre creux extérieur est visible à la figure 1. Les arbres 4 sont entraînés chacun avec un mouvement de rotation alternatif autour d'un axe longitudinal X4, qui est horizontal en fonctionnement. Le mécanisme 6 comprend également des leviers, des barres obliques et des biellettes 8 actionnés par la rotation des arbres 4. Le mécanisme 6 forme une chaîne cinématique permettant, à partir de la rotation de l'arbre d'entrée, de déplacer les lames 12 avec un mouvement alternatif vertical en opposition de phase. Ainsi, en fonctionnement, lorsqu'une lame 12 est en position haute, les deux lames qui lui sont adjacentes sont en position basse. Les lames 12 sont disposées tête-bêche les unes à côté des autres.On the figure 1 is shown a Jacquard 2, sometimes called Jacquard machine, to form the crowd applied to the warp son of a fabric being woven on a loom. The Jacquard mechanism 2 comprises an input main shaft (not shown) and a mechanism 6 for transmitting motion between the input shaft and a series of blades, or knives 12. This mechanism 6 comprises two coaxial shafts 4, among which only the outer hollow shaft is visible at the figure 1 . The shafts 4 are each driven with reciprocating movement about a longitudinal axis X4, which is horizontal in operation. The mechanism 6 also comprises levers, slashes and rods 8 actuated by the rotation of the shafts 4. The mechanism 6 forms a kinematic chain allowing, from the rotation of the input shaft, to move the blades 12 with a vertical reciprocating motion in opposition of phase. Thus, in operation, when a blade 12 is in the high position, the two blades which are adjacent to it are in the low position. The blades 12 are arranged head to tail next to each other.

Une multitude de crochets mobiles 28 sont montés par paire sur chaque lame 12. Une paire de ces crochets 28 est visible uniquement à la figure 4. Les crochets 28 adjacents de deux lames successives 12 sont reliés deux à deux par un cordon non-représenté. Le déplacement des crochets 28 est commandé par celui des lames 12 et par un système d'immobilisation sélective des crochets 28 non représenté, comme un système à électroaimant. Chaque crochet mobile 28 est apte à être immobilisé par un dispositif de sélection pour déterminer la position d'un fil de chaîne sur le métier à tisser. Un système à poulie non représenté permet de transmettre le mouvement de chaque ensemble de crochets 28 adjacents à une lisse non représentée traversée par un fil de chaîne. Cela permet alors de créer la foule pour le passage d'un fil de trame. Les deux crochets adjacents, le cordon les reliant, le système à électroaimant et le système à poulie font partie d'un module Jacquard du type de celui décrit dans EP1413657 .A multitude of movable hooks 28 are mounted in pairs on each blade 12. A pair of these hooks 28 is visible only at the figure 4 . The adjacent hooks 28 of two successive blades 12 are connected in pairs by a bead not shown. The movement of the hooks 28 is controlled by that of the blades 12 and by a system for selectively immobilizing the hooks 28 not shown, such as an electromagnet system. Each movable hook 28 is adapted to be immobilized by a selection device to determine the position of a warp on the loom. A not shown pulley system makes it possible to transmit the movement of each set of hooks 28 adjacent to a not shown string traversed by a warp thread. This then allows to create the crowd for the passage of a weft thread. The two adjacent hooks, the cord connecting them, the electromagnet system and the pulley system are part of a Jacquard module of the type described in EP1413657 .

Des flasques 10 sont fixés à intervalles réguliers sur le bâti de la machine Jacquard. Les flasques 10 sont disposés transversalement à un axe longitudinal X12 selon lequel s'étend chaque lame 12. L'axe X12 est parallèle à l'axe X4. Deux flasques 10 successifs permettent de supporter des modules Jacquard comprenant les crochets 28 et délimitent entre eux un volume V10 de réception de modules Jacquard. On note L10 la longueur d'un volume V10 selon l'axe X12. La distance L10 correspond sensiblement à la distance longitudinale entre deux flasques 10 successifs délimitant le même espace V10 de réception de modules. Certains flasques 10 ont été partiellement représentés sur la figure 1 pour une meilleure visibilité des lames 12 dans la mécanique Jacquard 2. Les flasques 10 sont traversés par les lames 12. A cet effet, les flasques 10 délimitent chacun une série d'ouvertures verticales 100 de passage des lames 12. Les lames 12 sont reliées au mécanisme de transmission 6 par l'intermédiaire de biellettes 8 disposées à chacune de leurs extrémités longitudinales.Flanges 10 are fixed at regular intervals on the frame of the Jacquard machine. The flanges 10 are arranged transversely to a longitudinal axis X12 along which each blade 12 extends. The axis X12 is parallel to the axis X4. Two successive flanges 10 can support Jacquard modules comprising the hooks 28 and delimit between them a volume V10 for receiving Jacquard modules. We denote L10 the length of a volume V10 along the axis X12. The distance L10 corresponds substantially to the longitudinal distance between two successive flanges delimiting the same space V10 module receiving. Some flanges 10 have been partially represented on the figure 1 for better visibility of the blades 12 in the Jacquard mechanism 2. The flanges 10 are traversed by the blades 12. For this purpose, the flanges 10 each delimit a series of vertical openings 100 for passage of the blades 12. The blades 12 are connected to the transmission mechanism 6 by means of rods 8 arranged at each of their longitudinal ends.

Une lame 12 de la machine Jacquard 2 est mieux visible aux figures 2 à 4. Dans la suite de la description, une seule lame 12 de la machine Jacquard 2 est décrite, sachant que toutes les autres lames sont identiques, bien que cela ne ressorte pas immédiatement de la figure 1 puisqu'elles sont disposées tête-bêche.A blade 12 of the Jacquard machine 2 is better visible Figures 2 to 4 . In the following description, a single blade 12 of the Jacquard machine 2 is described, knowing that all the other blades are identical, although this does not immediately show the figure 1 since they are arranged head to tail.

L'axe longitudinal X12 définit la direction longitudinale du profil 14 et de la lame 12 qui est mentionnée à plusieurs reprises dans le présent document. Lorsque la lame 12 est montée dans la mécanique jacquard, la direction longitudinale correspond à la direction des fils de trame sur le métier à tisser Jacquard. Dans l'exemple, la lame 12 présente une longueur L12 de 1,8 m mais cette longueur peut varier selon le format de la machine utilisé de 1m jusqu'à 4m. Comme visible à la figure 3, la lame 12 comprend un profil 14 en matériau composite ayant un corps 140 constitué de fibres unidirectionnelles F qui s'étendent dans la direction longitudinale du profil 14 et qui sont noyées dans une résine R. Les fibres unidirectionnelles F sont dites longues car chaque fibre F s'étend sensiblement sur toute la longueur du corps 140. Le profil 14 comprend deux extrémités longitudinales E14 et deux faces latérales S14. Dans ce document, la direction latérale est une direction perpendiculaire à l'épaisseur des lames 12, c'est-à-dire perpendiculaire à la direction longitudinale et à la hauteur des lames 12. Lorsque la lame 12 est montée dans la mécanique jacquard, la direction latérale correspond à la direction des fils de chaîne sur le métier à tisser Jacquard. Ainsi, les faces latérales S14 du profil 14 sont globalement perpendiculaires à la direction latérale. A la figure 3, les fibres unidirectionnelles F sont représentées par des points. Dans l'exemple, ces fibres sont des fibres de carbone et la résine R est une résine époxyde. En particulier, la résine époxyde R utilisée possède un durcisseur. Dans le présent document, les termes « supérieur » et « inférieur » sont à interpréter selon une direction correspondant à la hauteur du corps. En particulier, dans une configuration où les lames 12 sont assemblées sur la mécanique Jacquard 2, c'est-à-dire dans la configuration des figures 1 à 5, un élément « supérieur » est disposé au-dessus d'un élément « inférieur ». Le corps 140 du profil 14 comprend une partie inférieure 140a ayant une extrémité 140.2 en forme de pointe rayonnée, c'est-à-dire présentant une forme arrondie. Le corps 140 comprend également une partie supérieure 140c d'entraînement des crochets 28, c'est-à-dire au niveau de laquelle les crochets 28 coopèrent avec la lame, et une partie intermédiaire 140b reliant les parties 140a et 140c. Le corps 140 présente un profil symétrique par rapport à un plan médian P14 qui coupe le corps 140 au milieu de son épaisseur. Le corps 140 est également symétrique par rapport à un plan transversal non-représenté coupant le corps 140 à mi-longueur. Les parties 140a à 140c sont des parties pleines à section globalement rectangulaire, c'est-à-dire ne comportant pas de cavité interne, d'évidement ou encore d'encoche extérieure, qui sont liées les unes aux autres. La partie intermédiaire 140b est formée par une unique âme centrale, centrée sur le plan P14, et présente une épaisseur e2 qui est inférieure à une épaisseur e1 de la partie supérieure 140c et inférieure à une épaisseur e3 de la partie inférieure 140a. Les épaisseurs e1 à e3 sont mesurées perpendiculairement à l'axe X12 et à la hauteur H12 de la lame 12. Dans l'exemple, l'épaisseur e1 vaut 9mm, l'épaisseur e2 vaut 4mm, l'épaisseur e1 représentant donc 30% à 60% de l'épaisseur e2. En variante non représentée, la partie intermédiaire 140b présente une épaisseur variable, l'épaisseur e2 est alors l'épaisseur maximale de la partie intermédiaire. La section du corps 140 de la lame 12 présente une hauteur H14 de 220 mm. La hauteur H14 est plus largement comprise entre 200 et 240 mm et est particulièrement adaptée pour tous les formats des machines Jacquard. Cette hauteur H14 est très supérieure à l'épaisseur maximale du corps 140, qui est dans l'exemple l'épaisseur e1 qui vaut 9 mm. En pratique, le rapport entre la hauteur H14 du corps 140 et l'épaisseur maximale du corps 140 est supérieur à 15, de préférence supérieur à 20. La hauteur de la partie intermédiaire 140b représente environ 150mm, soit 60% à 80% de la hauteur H14. On note 140.1 la portion de jonction entre la partie supérieure 140c d'entraînement des crochets 28 et la partie intermédiaire 140b, au niveau de laquelle le corps 140 varie en épaisseur, de l'épaisseur e1 vers l'épaisseur e2.The longitudinal axis X12 defines the longitudinal direction of the profile 14 and the blade 12 which is mentioned several times in this document. When the blade 12 is mounted in the jacquard mechanism, the longitudinal direction corresponds to the direction of the weft son on the Jacquard loom. In the example, the blade 12 has a length L12 of 1.8 m but this length may vary depending on the format of the machine used from 1m up to 4m. As visible at figure 3 , the blade 12 comprises a profile 14 of composite material having a body 140 consisting of unidirectional fibers F which extend in the longitudinal direction of the profile 14 and which are embedded in a resin R. The unidirectional fibers F are said to be long because each fiber F extends substantially over the entire length of the body 140. The profile 14 comprises two longitudinal ends E14 and two lateral faces S14. In this document, the lateral direction is a direction perpendicular to the thickness of the blades 12, that is to say perpendicular to the longitudinal direction and the height of the blades 12. When the blade 12 is mounted in the jacquard mechanism, the lateral direction corresponds to the direction of the warp yarns on the Jacquard loom. Thus, the lateral faces S14 of the profile 14 are generally perpendicular to the lateral direction. To the figure 3 the unidirectional fibers F are represented by dots. In the example, these fibers are carbon fibers and the resin R is an epoxy resin. In particular, the epoxy resin R used has a hardener. In this document, the terms "superior" and "inferior" are to be interpreted in a direction corresponding to the height of the body. In particular, in a configuration where the blades 12 are assembled on the Jacquard 2 mechanism, that is to say in the configuration of the Figures 1 to 5 an "upper" element is placed above a "lower" element. The body 140 of the profile 14 comprises a lower portion 140a having an end 140.2 shaped tip radiated, that is to say having a rounded shape. The body 140 also includes an upper portion 140c driving the hooks 28, that is to say at which the hooks 28 cooperate with the blade, and an intermediate portion 140b connecting parts 140a and 140c. The body 140 has a symmetrical profile with respect to a median plane P14 which cuts the body 140 in the middle of its thickness. The body 140 is also symmetrical with respect to an unrepresented transverse plane intersecting the body 140 at mid-length. The parts 140a to 140c are solid parts with a generally rectangular section, that is to say having no internal cavity, recess or outer notch, which are connected to each other. The intermediate portion 140b is formed by a single central core, centered on the plane P14, and has a thickness e2 which is smaller than a thickness e1 of the upper portion 140c and less than a thickness e3 of the lower portion 140a. The thicknesses e1 to e3 are measured perpendicularly to the axis X12 and to the height H12 of the blade 12. In the example, the thickness e1 is 9mm, the thickness e2 is 4mm, the thickness e1 thus represents 30% at 60% of the thickness e2. In variant not shown, the intermediate portion 140b has a variable thickness, the thickness e2 is then the maximum thickness of the intermediate portion. The section of the body 140 of the blade 12 has a height H14 of 220 mm. The height H14 is more widely between 200 and 240 mm and is particularly suitable for all formats of Jacquard machines. This height H14 is much greater than the maximum thickness of the body 140, which in the example is the thickness e1 which is 9 mm. In practice, the ratio between the height H14 of the body 140 and the maximum thickness of the body 140 is greater than 15, preferably greater than 20. The height of the intermediate portion 140b is about 150 mm, or 60% to 80% of the height H14. 140.1 is the connecting portion between the upper portion 140c driving the hooks 28 and the intermediate portion 140b, at which the body 140 varies in thickness, the thickness e1 to the thickness e2.

Par analogie, dans la suite de la description, une partie intermédiaire du profil 14 correspond à la partie du profil comportant la partie 140b du corps 140, une partie supérieure du profil 14 correspond à la partie du profil comportant la partie 140c du corps 140 et une partie inférieure du profil 14 correspond à la partie du profil comportant la partie 140a du corps 140.By analogy, in the following description, an intermediate portion of the profile 14 corresponds to the portion of the profile comprising the portion 140b of the body 140, an upper portion of the profile 14 corresponds to the portion of the profile comprising the portion 140c of the body 140 and a lower part of the profile 14 corresponds to the portion of the profile comprising the portion 140a of the body 140.

Des fibres unidirectionnelles F sont disposées dans les parties supérieure, intermédiaire et inférieure du profil 14.Unidirectional fibers F are arranged in the upper, intermediate and lower portions of the profile 14.

Le profil 14 comprend un film à base de fibres qui recouvre au moins la portion de jonction 140.1 entre la partie supérieure 140c et la partie intermédiaire 140b, sur deux faces latérales S140 du corps. Dans l'exemple, le film épouse toute la périphérie extérieure du corps 140 et forme une enveloppe externe 142 qui est en tissu de fibres de verre. Autrement dit, l'enveloppe 142 est tissée, c'est-à-dire qu'elle comprend des fibres de verre 142.1 qui s'entrelacent perpendiculairement les unes aux autres. Les fibres 142.1 sont globalement inclinées chacune de 45° environ par rapport à la direction longitudinale de la lame 12. En variante, l'enveloppe externe 142 est un film non-tissé à base de fibres de carbone. A la figure 3, l'enveloppe 142 est représentée par des traits interrompus en gras. Une partie de l'enveloppe 142 est schématiquement représentée agrandie à la figure 2. L'enveloppe 142 protège les fibres et la résine du corps 140 des huiles et autres agents extérieurs. Elle assure également la cohésion du profil composite 14 qui est fragile selon une direction transversale aux fibres unidirectionnelles, en particulier dans les zones de variation d'épaisseur, et empêche le délaminage du profil 14 lorsque les crochets 28 sont en appui sur la lame 12. Cela présente un avantage en particulier lorsque les efforts d'appui des crochets 28 ne sont pas homogènes sur toute la longueur de la lame 12. Le profil 14 a une section constante sur sa longueur L14.The profile 14 comprises a fiber-based film which covers at least the junction portion 140.1 between the upper portion 140c and the intermediate portion 140b, on two lateral faces S140 of the body. In the example, the film marries the entire outer periphery of the body 140 and forms an outer envelope 142 which is made of fiber fabric. glass. In other words, the envelope 142 is woven, that is to say that it comprises glass fibers 142.1 which intertwine perpendicular to each other. The fibers 142.1 are generally inclined each approximately 45 ° with respect to the longitudinal direction of the blade 12. As a variant, the outer envelope 142 is a nonwoven film based on carbon fibers. To the figure 3 , the envelope 142 is represented by broken lines in bold. Part of the envelope 142 is schematically represented enlarged at the figure 2 . The casing 142 protects the fibers and resin of the body 140 from oils and other external agents. It also ensures the cohesion of the composite profile 14 which is fragile in a direction transverse to the unidirectional fibers, in particular in the thickness variation zones, and prevents delamination of the profile 14 when the hooks 28 rest on the blade 12. This has an advantage in particular when the support forces of the hooks 28 are not homogeneous over the entire length of the blade 12. The profile 14 has a constant section along its length L14.

La lame 12 comprend en outre deux blocs de fixation 18 pour attacher deux biellettes 8 du mécanisme de transmission 6 à la lame 12. Ces blocs de fixation 18 sont fixés aux deux extrémités longitudinales E14 du profil 14, notamment par collage. Un bloc de fixation 18 est mieux visible à la figure 5. Dans ce qui suit, un seul des deux blocs de fixation 18 d'une lame 12 est décrit, l'autre bloc étant identique.The blade 12 further comprises two fixing blocks 18 for attaching two links 8 of the transmission mechanism 6 to the blade 12. These fixing blocks 18 are fixed to the two longitudinal ends E14 of the profile 14, in particular by gluing. A fixing block 18 is better visible at the figure 5 . In what follows, only one of the two fixing blocks 18 of a blade 12 is described, the other block being identical.

Le bloc de fixation 18 comporte une partie d'extrémité supérieure 18.1, une partie d'extrémité inférieure 18.3 et un corps central 18.2 reliant les parties 18.1 et 18.3. Les parties d'extrémité supérieure et inférieure sont à considérer selon une direction correspondant à la hauteur du bloc 18 qui correspond à la direction de la hauteur du profil 14 lorsque le bloc 18 est fixé au profil 14. Le corps central 18.2 est à section en U, c'est-à-dire qu'il comporte une paroi de fond 180 et deux parois latérales 182 qui sont parallèles l'une à l'autre. Lorsque le bloc de fixation 18 est fixé sur le profil 14, les parois latérales 182 s'étendent parallèlement à la direction longitudinale du profil 14 et sont dirigées vers ce dernier, alors que la paroi de fond 180 est perpendiculaire à l'axe longitudinal X12 et est en regard de la surface d'extrémité longitudinale E14. Les parois latérales 182 délimitent donc des surfaces latérales intérieures S182 qui sont tournées chacune vers une face latérale S14 du profil 14. Le collage des blocs 18 s'effectue sur une surface externe du profil 14, c'est-à-dire sur une surface délimitant la section transversale du profil sur sensiblement toute sa longueur L14. Ainsi, la fixation des blocs 18 ne nécessite pas d'autre usinage du profil 14 que la mise à longueur L14 éventuelle et il n'y a pas de risque d'endommager la répartition des fibres. Le profil 14 a donc une section constante sur sa longueur L14, y compris au niveau des portions longitudinales d'extrémité du profil qui sont en regard des parois latérales 182. La biellette 8 est fixée sur le bloc 18 du côté opposé au profil 14, selon la direction longitudinale, c'est-à-dire du côté de la surface extérieure de la paroi de fond 180. Le corps 18.2, et en particulier les parois latérales 182, sont décalées longitudinalement par rapport aux parties d'extrémité 18.1 et 18.3, lesquelles délimitent la longueur totale L12 de la lame 12. Ce retrait longitudinal est représenté à la figure 5 par la distance d1. Cela a pour avantage que la biellette correspondante 8 ne prend appui que sur les parties d'extrémité 18.1, 18.3 du bloc de fixation 18 et non sur la paroi de fond 180 du corps central 18.2. Par ailleurs, le retrait longitudinal d1 entre le corps 18.2 et les parties d'extrémité 18.1 et 18.3 est rattrapé de manière progressive au niveau de la jonction entre le corps 18.2 et les parties d'extrémités 18.1, 18.3. Ainsi, la transmission des efforts à la colle s'effectue progressivement lors de la mise en marche de la machine Jacquard, c'est-à-dire lorsque la lame 12 est mise en mouvement par le mécanisme 6.The fixing block 18 has an upper end portion 18.1, a lower end portion 18.3 and a central body 18.2 connecting the parts 18.1 and 18.3. The upper and lower end portions are to be considered in a direction corresponding to the height of the block 18 which corresponds to the direction of the height of the profile 14 when the block 18 is fixed to the profile 14. The central body 18.2 is section in U, that is to say it has a bottom wall 180 and two side walls 182 which are parallel to each other. When the fixing block 18 is fixed on the profile 14, the side walls 182 extend parallel to the longitudinal direction of the profile 14 and are directed towards the latter, while the bottom wall 180 is perpendicular to the longitudinal axis X12 and is facing the longitudinal end surface E14. The side walls 182 thus delimit internal lateral surfaces S182 which are each turned towards a lateral face S14 of the profile 14. The bonding of the blocks 18 takes place on an external surface of the profile 14, that is to say on a surface delimiting the cross section of the profile over substantially its entire length L14. Thus, the fixing of the blocks 18 does not require further machining of the profile 14 that the setting L14 possible length and there is no risk of damaging the distribution of fibers. The profile 14 thus has a constant section along its length L14, including at the longitudinal end portions of the profile which are opposite the side walls 182. The rod 8 is fixed on the block 18 on the side opposite the profile 14, in the longitudinal direction, that is to say on the side of the outer surface of the bottom wall 180. The body 18.2, and in particular the side walls 182, are offset longitudinally relative to the parts of the end 18.1 and 18.3, which delimit the total length L12 of the blade 12. This longitudinal withdrawal is shown in FIG. figure 5 by the distance d1. This has the advantage that the corresponding rod 8 bears only on the end portions 18.1, 18.3 of the fixing block 18 and not on the bottom wall 180 of the central body 18.2. Furthermore, the longitudinal shrinkage d1 between the body 18.2 and the end portions 18.1 and 18.3 is caught up progressively at the junction between the body 18.2 and the end portions 18.1, 18.3. Thus, the transmission of forces to the glue is carried out gradually when the Jacquard machine is started, that is to say when the blade 12 is set in motion by the mechanism 6.

Les parties d'extrémité 18.1 et 18.3 comportent chacune un trou traversant, qui n'est pas visible à la figure 5. Ce trou débouche, du côté du profil en matériau composite 14, dans un embrèvement 186, c'est-à-dire dans un évidement ménagé dans la partie 18.1 ou 18.3. Un insert taraudé 184 est inséré à l'intérieur de ce trou et délimite un taraudage O184 de réception d'une vis non représentée, pour la fixation de la biellette correspondante 8. L'insert 184 est épaulé, c'est-à-dire qu'il comporte une tête destinée à venir en appui contre le fond de l'embrèvement 186. Cet insert 184 est en pratique monté en force à l'intérieur du trou. La partie d'extrémité supérieure 18.1 délimite également un logement 188 pour un pion de centrage non représenté. Ce pion de centrage est prévu pour s'étendre entre le bloc de fixation 18 et la biellette 8 et permet un positionnement précis de la biellette 8 par rapport au bloc de fixation 18.The end portions 18.1 and 18.3 each have a through-hole, which is not visible at the figure 5 . This hole opens, on the side of the composite material profile 14, in a recess 186, that is to say in a recess in the part 18.1 or 18.3. A tapped insert 184 is inserted inside this hole and delimits a tapping O184 for receiving a not shown screw, for fixing the corresponding link 8. The insert 184 is supported, that is to say it comprises a head intended to bear against the bottom of the recess 186. This insert 184 is in practice mounted in force inside the hole. The upper end portion 18.1 also defines a housing 188 for a not shown centering pin. This centering pin is intended to extend between the fixing block 18 and the rod 8 and allows precise positioning of the rod 8 with respect to the fixing block 18.

Le bloc de fixation 18 comporte au moins une surface destinée à être collée contre une face latérale S14 du profil 14. Cela permet de dimensionner la surface de collage en évitant d'ajouter de l'encombrement dans le sens de la hauteur et dans le sens longitudinal. Dans l'exemple, la surface intérieure S182 de chaque paroi latérale 182 est destinée à être collée contre une face latérale S14 correspondante du profil 14, ceci au niveau de la partie intermédiaire du profil. Les deux surfaces latérales S182 s'étendent dans la direction longitudinale de manière à définir une surface de collage optimale, compatible avec les efforts à transmettre au profil 14. Par ailleurs, cela permet également de limiter l'épaisseur des parois 182.The fixing block 18 comprises at least one surface intended to be glued against a lateral face S14 of the profile 14. This makes it possible to size the bonding surface while avoiding adding space in the direction of the height and in the direction longitudinal. In the example, the inner surface S182 of each side wall 182 is intended to be glued against a corresponding lateral face S14 of the profile 14, this at the intermediate portion of the profile. The two lateral surfaces S182 extend in the longitudinal direction so as to define an optimal bonding surface, compatible with the forces to be transmitted to the profile 14. Moreover, this also makes it possible to limit the thickness of the walls 182.

En outre, le collage des blocs de fixation 18 au niveau de la partie intermédiaire du profil 14, à proximité de la fibre neutre du profil 14, c'est-à-dire là où il y a le moins de sollicitations mécaniques en flexion, permet de limiter les sollicitations de la colle et d'augmenter ainsi la durée de vie de la lame 12. De plus, comme la partie intermédiaire du profil 14 présente une épaisseur réduite par rapport au reste du profil 14, l'encombrement latéral engendré par la fixation des blocs 18 sur le profil 14 est compatible avec l'espace prévu pour le positionnement des lames 12 dans la machine jacquard 2. En particulier, l'encombrement de la lame 12 selon l'invention est sensiblement équivalent à celui d'une lame en aluminium de l'état de l'art, ce qui permet leur interchangeabilité et garantit un montage facile de la lame 12 dans la machine Jacquard.In addition, the bonding of the fixing blocks 18 at the intermediate portion of the profile 14, near the neutral fiber of the profile 14, that is to say where there is the least mechanical stress in flexion, to limit the solicitations of the glue and thus increase the life of the blade 12. In addition, as the intermediate part of the profile 14 has a reduced thickness compared to the rest of the profile 14, the lateral space generated by the fixing of the blocks 18 on the profile 14 is compatible with the space provided for the positioning of the blades 12 in the jacquard machine 2. In In particular, the bulk of the blade 12 according to the invention is substantially equivalent to that of an aluminum blade of the state of the art, which allows their interchangeability and guarantees easy assembly of the blade 12 in the machine Jacquard.

Par ailleurs, le fait d'utiliser des pièces intermédiaires rapportées, à savoir les blocs de fixation 18, pour attacher la lame 12 au mécanisme 6 permet de dissocier les fonctions de rigidité et de liaison à la cinématique de la mécanique Jacquard 2 et de limiter l'impact de la liaison sur la rigidité en flexion de la lame 12. En particulier, les fibres unidirectionnelles en carbone du profil 14 qui sont agencées dans les parties supérieure et inférieure du profil 14 sont préservées, ce qui permet de conserver un maximum de rigidité en flexion.Moreover, the fact of using inserted intermediate pieces, namely the fixing blocks 18, for attaching the blade 12 to the mechanism 6 makes it possible to dissociate the rigidity and connection functions with the kinematics of the Jacquard 2 mechanism and to limit the impact of the connection on the flexural stiffness of the blade 12. In particular, the carbon unidirectional fibers of the profile 14 which are arranged in the upper and lower portions of the profile 14 are preserved, which makes it possible to maintain a maximum of stiffness in flexion.

La lame 12 comprend également au moins un rail 16 d'interface avec les crochets 28 de la mécanique Jacquard qui est fixé en recouvrement de la surface extérieure de l'extrémité supérieure du profil 14. Cela permet de dissocier les fonctions de rigidité et de résistance au contact avec les crochets 28. Dans l'exemple, la lame 12 comprend plusieurs rails d'interface 16 métalliques, notamment en aluminium, qui sont répartis sur la longueur du profil 14 et qui sont espacés les uns des autres avec une distance longitudinale de 12 mm. Le recours à plusieurs rails 16 répartis sur la longueur permet de limiter la dilatation thermique différentielle entre le matériau composite du profil 14 et le métal des rails d'interface 16, lorsque la température de fonctionnement de la machine Jacquard est supérieure à la température de fabrication de la lame 12. Cela permet ainsi d'éviter des déformations géométriques de la lame 12 qui ne seraient pas compatibles avec le déplacement des crochets 28 dans la machine Jacquard.The blade 12 also comprises at least one rail 16 for interfacing with the hooks 28 of the Jacquard mechanism which is fixed in overlapping of the outer surface of the upper end of the profile 14. This makes it possible to dissociate the functions of rigidity and resistance. in the example in the example, the blade 12 comprises several metal interface rails 16, in particular of aluminum, which are distributed over the length of the profile 14 and which are spaced from each other with a longitudinal distance of 12 mm. The use of several rails 16 distributed along the length makes it possible to limit the differential thermal expansion between the composite material of the profile 14 and the metal of the interface rails 16, when the operating temperature of the Jacquard machine is greater than the manufacturing temperature. of the blade 12. This thus avoids geometric deformations of the blade 12 which would not be compatible with the movement of the hooks 28 in the Jacquard machine.

Chaque rail 16 présente une longueur L16 correspondant à la longueur L10 d'un volume de réception V10 de modules Jacquard pour s'étendre sans discontinuité sur la longueur sur laquelle les crochets 28 présents dans un volume de réception de modules jacquard coopèrent avec la lame 12. Cette longueur L16 est d'environ 380 mm, avec une tolérance de +/-10 mm. L'espacement entre deux rails successifs 16 représente donc environ 2 à 10 % de la longueur L16 d'un rail d'interface 16. Les rails d'interface 16 présentent une section en U avec deux branches 162 reliées par une paroi de fond 164. Ces rails d'interface 16 sont destinés à être fixés sur le profil 14, notamment par collage, autour de la partie supérieure 140c du corps 140. Lorsque les rails 16 sont montés sur la lame 12, le fond de chaque rail 16 est tourné vers le bas, c'est-à-dire que la paroi de fond 164 fait face à l'extrémité supérieure du profil 14 et les deux parois latérales 162 du rail 16 s'étendent verticalement vers le bas à partir de la paroi de fond 164. Ainsi, chaque rail 16 comprend deux surfaces latérales intérieures S16 destinées à être collées contre les surfaces S14 du profil 14, au niveau de la partie supérieure de celui-ci. La paroi de fond 164 de chaque rail 16 comporte, sur sa surface extérieure opposée au profil 14, des encoches 160 pour un contact optimisé avec les crochets 28. Les parois latérales 162 s'étendent sur toute la hauteur des crochets 28 lorsque ces derniers sont en contact avec la paroi de fond 162 et s'interposent entre les crochets 28 et le profil 14 dans la direction latérale pour éviter tout contact des crochets 28 avec le profil 14. La géométrie en U de chaque rail 16 permet un collage du rail avec des surfaces externes du profil 14, sans usinage de la partie supérieure du profil et en conservant un maximum de rigidité pour le profil.Each rail 16 has a length L16 corresponding to the length L10 of a receiving volume V10 of Jacquard modules to extend continuously over the length on which the hooks 28 present in a jacquard module receiving volume cooperate with the blade 12 This length L16 is about 380 mm, with a tolerance of +/- 10 mm. The spacing between two successive rails 16 thus represents approximately 2 to 10% of the length L16 of an interface rail 16. The interface rails 16 have a U-shaped section with two branches 162 connected by a bottom wall 164 These interface rails 16 are intended to be fixed on the profile 14, in particular by gluing, around the upper part 140c of the body 140. When the rails 16 are mounted on the blade 12, the bottom of each rail 16 is turned. down, that is to say that the bottom wall 164 faces the upper end of the profile 14 and the two side walls 162 of the rail 16 extend vertically downwardly from the bottom wall 164. Thus, each rail 16 comprises two inner side surfaces S16 intended to be glued against the surfaces S14 of the profile 14, at the level of the upper part thereof. The bottom wall 164 of each rail 16 has, on its outer surface opposite the profile 14, notches 160 for optimized contact with the hooks 28. The side walls 162 extend over the entire height of the hooks 28 when they are in contact with the bottom wall 162 and interpose between the hooks 28 and the profile 14 in the lateral direction to avoid contact of the hooks 28 with the profile 14. The U-shaped geometry of each rail 16 allows a bonding of the rail with external surfaces of the profile 14, without machining the upper part of the profile and maintaining maximum rigidity for the profile.

La hauteur H12 est sensiblement égale à la somme de la hauteur H14 et de l'épaisseur de la paroi de fond du rail 16, au jeu près ou à l'épaisseur de colle près entre l'extrémité supérieure du profil 14 et la paroi de fond 164 du rail 16.The height H12 is substantially equal to the sum of the height H14 and the thickness of the bottom wall of the rail 16, with clearance or to the thickness of glue close between the upper end of the profile 14 and the wall of bottom 164 of the rail 16.

La lame 12 comprend également des patins de lame 20 qui sont répartis de manière régulière le long du profil 14 avec un espacement correspondant sensiblement au double de la longueur L10. Ces patins 20 servent à guider la lame 12 dans son mouvement alternatif vertical et coopèrent avec des guides non représentés fixés sur les flasques 10. Chaque patin 20 est bipartite, c'est-à-dire qu'il comprend une partie 20a fixée sur une face latérale S14 du profil 14 et une partie 20b fixée de l'autre côté. Les parties 20a et 20b sont fixées l'une à l'autre par vissage. A cet effet, des trous 144 sont percés à travers la partie intermédiaire du profil 14 pour le passage de vis 22. Ces vis 22, qui sont au nombre de deux, sont vissées à travers les trous 144 dans des taraudages prévus dans la partie 20b du patin 20. Le dernier trou 144 pratiqué dans le profil 14 permet le positionnement précis du patin 20 sur le profil 14. Deux cales 24 sont interposées, de chaque côté, entre les faces latérales S14 du profil 14 et les parties 20a et 20b du patin 20. Ces cales 24 permettent d'éviter d'endommager le profil 14 lors de la fixation du patin 20.The blade 12 also comprises blade shoes 20 which are evenly distributed along the profile 14 with a spacing corresponding substantially to twice the length L10. These pads 20 serve to guide the blade 12 in its vertical reciprocating movement and cooperate with unrepresented guides fixed on the flanges 10. Each pad 20 is bipartite, that is to say it comprises a portion 20a fixed on a side face S14 of the profile 14 and a portion 20b fixed on the other side. The parts 20a and 20b are fixed to each other by screwing. For this purpose, holes 144 are drilled through the intermediate portion of profile 14 for the passage of screws 22. These screws 22, which are two in number, are screwed through holes 144 into threads provided in part 20b. of the pad 20. The last hole 144 formed in the profile 14 allows the precise positioning of the pad 20 on the profile 14. Two shims 24 are interposed, on each side, between the lateral faces S14 of the profile 14 and the parts 20a and 20b of the pad 20. These wedges 24 make it possible to avoid damaging the profile 14 when fixing the pad 20.

Ci-dessous est décrit un procédé de fabrication de la lame 12 conforme à l'invention.Below is described a method of manufacturing the blade 12 according to the invention.

Une première étape consiste en la fabrication du corps 140 du profil en matériau composite 14. Le corps 140 peut être obtenu par pultrusion, c'est-à-dire par le passage de fibres pré-imprégnées dans une longue filière chauffée qui contrôle la teneur en résine et détermine la forme de la section, ou par moulage. La résine est polymérisée lors de l'opération de pultrusion ou de moulage et durcit. Le film 142 est amené respectivement directement dans la filière de pultrusion ou mis en place dans le moule et adhère au corps 140 par l'intermédiaire de la résine R lors de la polymérisation.A first step consists in the manufacture of the body 140 of the composite material profile 14. The body 140 can be obtained by pultrusion, that is to say by the passage of pre-impregnated fibers in a long heated line which controls the content in resin and determines the shape of the section, or by molding. The resin is polymerized during the pultrusion or molding operation and cures. The film 142 is brought respectively directly in the pultrusion die or set up in the mold and adheres to the body 140 through the resin R during the polymerization.

Lorsqu'il est obtenu par pultrusion, le profil 14 est découpé à la longueur correspondant au format de la machine Jacquard sur laquelle il va être monté. Après découpe, la surface d'extrémité longitudinale E14 du profil 14 s'étend sensiblement dans un même plan perpendiculaire à la direction longitudinale X12. Il n'y a pas d'autre usinage appliqué au profil 14, de sorte que la cohésion et la rigidité du profil 14 sont préservées.When it is obtained by pultrusion, the profile 14 is cut to the length corresponding to the format of the Jacquard machine on which it will be mounted. After cutting, the longitudinal end surface E14 of the profile 14 extends substantially in the same plane perpendicular to the longitudinal direction X12. There is no other machining applied to the profile 14, so that the cohesion and rigidity of the profile 14 are preserved.

En revanche, lorsqu'il est obtenu par moulage, le profil 14 peut être directement réalisé à la longueur correspondant au format de la machine Jacquard concernée.On the other hand, when it is obtained by molding, the profile 14 can be directly made to the length corresponding to the format of the Jacquard machine concerned.

Ensuite, les surfaces du profil composite 14 qui sont destinées à être collées avec les rails 16 d'une part et avec les blocs de fixation 18 d'autre part, sont préparées. Ces surfaces correspondent aux faces latérales de la partie supérieure du profil 14 et aux portions d'extrémités longitudinales des faces latérales de la partie intermédiaire du profil 14. La préparation des surfaces consiste, de manière avantageuse, à une légère abrasion, puis à un dégraissage avant de positionner le profil 14 dans un outillage non-représenté. Le profil 14 ainsi préparé est fixé à cet outillage et les surfaces destinées à être collées sont encollées avec une colle époxyde sur quelques dizaines de millimètres d'épaisseur. La colle est par exemple un adhésif époxy bi-composant adapté aux matériaux à coller, aux dimensions des surfaces à coller et aux efforts à transmettre. Avantageusement, la colle époxyde a une résistance à la traction supérieure à 30 MPa et une élongation à la rupture de l'ordre de 3%.Les rails d'interface 16 sont dégraissés au niveau des surfaces intérieures S16 des deux branches destinées à être collées contre les faces latérales S14 de la partie supérieure 140c du profil 14. Les rails 16 sont mis en place dans une coiffe longitudinale non représentée, et espacés les uns des autres dans une position semblable à celle qu'ils doivent occuper par rapport aux flasques 10 lorsqu'ils sont montés dans la mécanique Jacquard 2. A cet effet, la coiffe dispose de pattes de positionnement qui garantissent l'alignement des rails 16 et l'écartement entre les rails 16. Les rails d'interface 16 sont positionnés avec l'extrémité libre des branches qui est dirigée vers le bas. Les faces latérales intérieures S16 des deux branches du rail 16 sont encollées avec une colle époxyde sur quelques dixièmes de millimètre d'épaisseur.Then, the surfaces of the composite profile 14 which are intended to be bonded with the rails 16 on the one hand and with the fixing blocks 18 on the other hand, are prepared. These surfaces correspond to the lateral faces of the upper part of the profile 14 and to the longitudinal end portions of the lateral faces of the intermediate portion of the profile 14. The preparation of the surfaces advantageously consists of a slight abrasion and then a degreasing before positioning the profile 14 in a tool not shown. The profile 14 thus prepared is attached to this tool and the surfaces to be glued are glued with an epoxy adhesive on a few tens of millimeters thick. The adhesive is, for example, a two-component epoxy adhesive adapted to the materials to be bonded, to the dimensions of the surfaces to be bonded and to the forces to be transmitted. Advantageously, the epoxy adhesive has a tensile strength greater than 30 MPa and an elongation at break of the order of 3% .The interface rails 16 are degreased at the inner surfaces S16 of the two branches to be glued. against the lateral faces S14 of the upper portion 140c of the profile 14. The rails 16 are placed in a longitudinal cap not shown, and spaced apart from each other in a position similar to that they must occupy relative to the flanges 10 when mounted in Jacquard mechanics 2. For this purpose, the cap has positioning tabs which ensure the alignment of the rails 16 and the spacing between the rails 16. The interface rails 16 are positioned with the free end of the branches which is directed downwards. The inner side faces S16 of the two branches of the rail 16 are glued with an epoxy adhesive on a few tenths of a millimeter thick.

Les rails d'interface 16 sont ensuite montés autour de l'extrémité supérieure du profil 14, avec chaque surface latérale intérieure S16 en regard d'une des faces latérales S14 de la partie supérieure du profil 14 et les joints de colle C2 entre ces surfaces latérales. Les rails 16 sont montés sans forcer, le surplus de colle est chassé vers le fond des rails 16, c'est-à-dire vers la paroi supérieure du profil 14. La coiffe est ensuite fixée à l'outillage.The interface rails 16 are then mounted around the upper end of the profile 14, with each inner lateral surface S16 facing one of the lateral faces S14 of the upper part of the profile 14 and the glue joints C2 between these surfaces. side. The rails 16 are mounted without forcing, the excess glue is driven to the bottom of the rails 16, that is to say to the upper wall of the profile 14. The cap is then attached to the tool.

Les deux blocs de fixation 18 sont mis en place chacun sur un support non représenté. Par exemple, des vis peuvent être utilisées pour fixer chaque bloc de fixation 18 sur son support. Les taraudages délimités par les inserts 186 peuvent par exemple servir à la fixation du bloc 18 sur son support. Ensuite, les surfaces latérales intérieures S182 du corps 18.2 des deux blocs 18 sont dégraissées puis encollées avec de la colle époxyde. Les supports sont mis en place dans l'outillage, ce qui permet de contrôler l'espacement longitudinal entre les deux blocs de fixation 18 pour le respect de la longueur L12 de la lame et la position des blocs 18 par rapport au profil 14 dans le sens de la hauteur. Cela permet également d'assurer le parallélisme entre les surfaces S14 et les surfaces S182 et entre les deux blocs de fixation 18. Lors de la mise en place des blocs 18 dans l'outillage, les corps 18.2 à section en U viennent se mettre en place autour des parties intermédiaires des deux extrémités longitudinales du profil 14 préalablement encollées, avec chaque surface latérale intérieures S182 en regard d'une des portions d'extrémité des faces latérales S14 de la partie intermédiaire 140b et des joints de colle C1 entre ces surfaces latérales. Le surplus de colle est, le cas échéant, chassé en direction du fond 180 du corps 18.2. En effet, un jeu axial J1 subsiste entre la paroi de fond 180 du corps 18.2 de chaque bloc 18, respectivement la partie d'extrémité supérieure 18.1, respectivement la partie d'extrémité inférieure 18.2 et la surface d'extrémité longitudinale E14 correspondante du profil 14. Il n'y a donc pas de contact longitudinal entre les blocs de fixation 18 et le profil en matériau composite 14. En outre, ce jeu axial J1 permet de prendre des tolérances de fabrication relativement élevées en ce qui concerne la longueur du profil 14. Le jeu J1 représente 0,5 à 1,5 mm. Les supports sont alors fixés à l'outillage.The two fixing blocks 18 are each placed on a support not shown. For example, screws may be used to secure each fastener block 18 on its support. The threads delimited by the inserts 186 may for example be used for fixing the block 18 on its support. Then, the inner side surfaces S182 of the body 18.2 of the two blocks 18 are degreased and then glued with epoxy glue. The supports are put in place in the tooling, which makes it possible to control the longitudinal spacing between the two fixing blocks 18 in order to respect the length L12 of the blade and the position of the blocks 18 with respect to the profile 14 in the sense of height. This also makes it possible to ensure parallelism between the surfaces S14 and the surfaces S182 and between the two fixing blocks 18. When the blocks 18 are put into the tooling, the U-section bodies 18.2 come into contact with one another. place around the intermediate portions of the two longitudinal ends of the profile 14 previously glued, with each inner side surface S182 opposite one of the end portions of the lateral faces S14 of the intermediate portion 140b and C1 glue joints between these side surfaces . The excess glue is, if necessary, driven towards the bottom 180 of the body 18.2. Indeed, an axial clearance J1 remains between the bottom wall 180 of the body 18.2 of each block 18, respectively the upper end portion 18.1, respectively the lower end portion 18.2 and the corresponding longitudinal end surface E14 of the profile 14. There is therefore no longitudinal contact between the fixing blocks 18 and the composite material profile 14. In addition, this axial clearance J1 makes it possible to take relatively high manufacturing tolerances with respect to the length of the profile. 14. The clearance J1 represents 0.5 to 1.5 mm. The supports are then fixed to the tooling.

Le fait que les blocs de fixation 18 comportent un corps 18.2 à section en U mis en place autour des extrémités E14 du profil 14 permet de conserver un accès aux joints de colle C lors de l'opération de collage, ceci afin de surveiller la bonne répartition de la colle.The fact that the fixing blocks 18 comprise a body 18.2 U section placed around the ends E14 of the profile 14 allows to maintain access to the glue joints C during the bonding operation, in order to monitor the good distribution of the glue.

L'ensemble est maintenu dans l'outillage pendant le temps de polymérisation de la colle. Une fois les blocs de fixation 18 et les rails 16 collés, le profil 14, alors équipé des blocs de fixation 18 et des rails 16 est démonté de l'outillage (les supports sont désolidarisés des blocs 18) et les patins 20 sont vissés sur le profil 14. Les perçages ménagés dans le profil 14 pour la fixation des patins 20 peuvent être réalisés indépendamment avant ou après les opérations de collage.The assembly is maintained in the tooling during the polymerization time of the glue. Once the fixing blocks 18 and the rails 16 have been glued, the profile 14, then equipped with the fixing blocks 18 and the rails 16, is removed from the tooling (the supports are detached from the blocks 18) and the shoes 20 are screwed onto the profile 14. The holes formed in the profile 14 for fixing the pads 20 may be made independently before or after the gluing operations.

La lame 12 peut alors être mise en place dans la mécanique Jacquard entre deux biellettes 8 reliées à l'arbre d'entrée de la mécanique Jacquard. Deux vis traversant chacune un trou ménagé de part en part dans chaque biellette 8 viennent se serrer dans les deux taraudages 184, pour la fixation de chaque biellette correspondante 8 contre le bloc de fixation 18. Chaque espacement entre deux rails 16 adjacents de la lame 12 est alors longitudinalement disposé entre deux volumes de réception de modules Jacquard adjacents dans la direction longitudinale X12. En fonctionnement de la machine Jacquard, le mécanisme 6, et en particulier la biellette 8 animée d'un mouvement de translation verticale alternatif, met en mouvement la lame 12 par l'intermédiaire des joints de colle C1 entre blocs 18 et profil 14.The blade 12 can then be put in place in the Jacquard mechanism between two links 8 connected to the input shaft of the Jacquard mechanism. Two screws each passing through a hole formed right through each rod 8 are tightened in the two threads 184, for fixing each corresponding rod 8 against the fixing block 18. Each spacing between two adjacent rails 16 of the blade 12 is then longitudinally disposed between two adjacent Jacquard modules receiving volumes in the longitudinal direction X12. In operation of the Jacquard machine, the mechanism 6, and in particular the rod 8 animated with a reciprocating vertical translation movement, moves the blade 12 through the glue joints C1 between blocks 18 and profile 14.

A titre de variante non représentée, les blocs de fixation 18 et les rails 16 peuvent être fixés au profil 14 autrement que par collage, par exemple par vissage, par pincement ou par clipsage. Préférentiellement, la fixation bloc/profil est réalisée au niveau d'une face latérale S14 du profil 14 et d'une paroi latérale du bloc de fixation 18 en regard. Toutefois, les rails d'interface 16 sont préférentiellement fixés par collage ou par pincement pour ne pas altérer la répartition des fibres longues en partie supérieure ou inférieure du profil 14, c'est-à-dire là où elles ont le plus d'impact sur la rigidité en flexion de la lame 12.As a variant not shown, the fixing blocks 18 and the rails 16 can be fixed to the profile 14 other than by gluing, for example by screwing, by pinching or clipping. Preferably, the block / profile fixing is performed at a side face S14 of the profile 14 and a side wall of the fixing block 18 opposite. However, the interface rails 16 are preferably fixed by gluing or by pinching so as not to alter the distribution of the long fibers in the upper or lower part of the profile 14, that is to say, where they have the greatest impact. on the flexural rigidity of the blade 12.

Selon une autre variante non représentée, la lame 12 ne comporte pas de blocs de fixation 18 et chaque biellette 8 vient se fixer au profil 14 par pincement de l'extrémité longitudinale E14 du profil 14, notamment au niveau de la partie intermédiaire de ce dernier ou par vissage dans des inserts taraudés directement collés au profil 14.According to another variant not shown, the blade 12 does not comprise fixing blocks 18 and each rod 8 is fixed to the profile 14 by pinching the longitudinal end E14 of the profile 14, in particular at the intermediate portion of the latter or by screwing into threaded inserts directly glued to profile 14.

Selon une autre variante non représentée, le corps 140 du profil 14 intègre des fibres unidirectionnelles autres que des fibres de carbone, comme par exemple des fibres en kevlar ou des fibres de verre.According to another variant not shown, the body 140 of the profile 14 incorporates unidirectional fibers other than carbon fibers, such as for example Kevlar fibers or glass fibers.

Avantageusement, la résine époxyde R durcie du profil 14 présente un module de résistance à la rupture par traction supérieur à 3000 MPA, une résistance à la traction entre 60 MPa et 80 MPa et un allongement à la rupture de l'ordre de 4%.Advantageously, the hardened epoxy resin R of the profile 14 has a modulus of tensile strength greater than 3000 MPa, a tensile strength of between 60 MPa and 80 MPa and an elongation at break of about 4%.

Selon une autre variante non représentée, le corps 140 du profil 14 est formé à partir d'une résine R thermodurcissable autre qu'une résine époxyde, par exemple une résine polyester.According to another variant not shown, the body 140 of the profile 14 is formed from a thermosetting resin R other than an epoxy resin, for example a polyester resin.

Selon une autre variante non représentée, l'enveloppe externe 142 est collée avec une colle époxyde sur le corps 140 durci.According to another variant not shown, the outer casing 142 is bonded with an epoxy adhesive on the body 140 cured.

Selon une autre variante non représentée, la fixation par collage des blocs 18 sur le profil 14 est renforcée par vissage d'éléments à travers les parois 182 et le corps 140, c'est-à-dire dans la direction transversale parallèle à l'épaisseur du profil 14.According to another variant not shown, the bonding of the blocks 18 to the profile 14 is reinforced by screwing elements through the walls 182 and the body 140, that is to say in the transverse direction parallel to the profile thickness 14.

Selon une autre variante non représentée, le profil 14 est composé de plusieurs corps en matériau composite qui sont superposés les uns sur les autres et qui s'étendent dans la direction longitudinale. Ces corps sont liés ensemble avec des entretoises de raccordement disposées à intervalles réguliers. Chacun de ces corps est constitué de fibres unidirectionnelles qui s'étendent dans la direction longitudinale du profil et qui sont noyées dans une résine.According to another variant not shown, the profile 14 is composed of several bodies of composite material which are superimposed on each other and which extend in the longitudinal direction. These bodies are bonded together with connection spacers arranged at regular intervals. Each of these bodies consists of unidirectional fibers which extend in the longitudinal direction of the profile and which are embedded in a resin.

Selon une autre variante non représentée, applicable au procédé de fabrication de la lame par moulage, les rails d'interface 16, les blocs de fixation 18 et/ou les patins 20 peuvent être directement surmoulés lors de la fabrication du profil 14. Des géométries d'ancrage avec le profil 14 peuvent alors être prévues sur les rails 16, sur les blocs 18 et sur les patins 20.According to another variant not shown, applicable to the manufacturing process of the blade by molding, the interface rails 16, the fixing blocks 18 and / or the pads 20 can be directly overmolded during the manufacture of the profile 14. Geometries anchoring with the profile 14 can then be provided on the rails 16, on the blocks 18 and on the pads 20.

Selon une autre variante non représentée, la partie intermédiaire 140b du corps 140 peut être formée de deux flancs latéraux espacés l'un de l'autre. Le creux formé par ces deux flancs latéraux peut être laissé vide ou rempli d'une matière légère, comme de la mousse ou du basalte. Les flancs latéraux de la partie intermédiaire 140b délimitent alors deux surfaces latérales intérieures pour le collage des blocs de fixation 18. Ces deux surfaces latérales intérieures sont des surfaces dites externes. Chaque bloc 18 présente alors une unique paroi latérale 182 et un joint de colle s'étend entre chacune des deux surfaces latérales de la paroi latérale 182 et la surface latérale intérieure du profil 14 en regard. Le profil 14 a donc une section constante sur sa longueur L14, y compris au niveau des portions longitudinale d'extrémité du profil qui sont en regard des parois latérales 182 des deux blocs 18.According to another variant not shown, the intermediate portion 140b of the body 140 may be formed of two lateral flanks spaced from one another. The hollow formed by these two lateral flanks can be left empty or filled with a light material, such as foam or basalt. The lateral flanks of the intermediate portion 140b then delimit two internal lateral surfaces for bonding the fixing blocks 18. These two inner lateral surfaces are so-called external surfaces. Each block 18 then has a single side wall 182 and an adhesive seal extends between each of the two side surfaces of the side wall 182 and the inner side surface of the profile 14 opposite. The profile 14 thus has a constant section along its length L14, including at the longitudinal end portions of the profile which are facing the side walls 182 of the two blocks 18.

Selon une autre variante non représentée, au moins un des blocs de fixation 18 comprend un ou plusieurs patins de guidage, similaires aux patins 20.According to another variant not shown, at least one of the fixing blocks 18 comprises one or more guide pads, similar to the pads 20.

Selon une autre variante non représentée, au moins un des rails d'interface 16 comprend un ou plusieurs patins de guidage, similaires aux patins 20.According to another variant not shown, at least one of the interface rails 16 comprises one or more guide pads, similar to the pads 20.

Selon une autre variante non représentée, les rails d'interface 16 sont rapportés sur la partie inférieure du profil composite. Cette configuration correspond à un agencement particulier des modules Jacquard par rapport à la cinématique, dans laquelle c'est la partie inférieure du profil 14 qui entraîne les crochets 28.According to another variant not shown, the interface rails 16 are attached to the lower part of the composite profile. This configuration corresponds to a particular arrangement of the Jacquard modules with respect to the kinematics, in which it is the lower part of the profile 14 which drives the hooks 28.

Selon une autre variante non représentée, l'enveloppe 142 est un film tissé en fibres de polyester, de kevlar, ou encore de carbone ou un film intissé en fibres, lesquelles peuvent être des fibres de verre, de polyester, de kevlar, ou encore de carbone. Dans tous les cas, l'enveloppe 142 diffère de la structure utilisée pour le corps 140, c'est-à-dire une structure à base de fibres unidirectionnelles dans la direction longitudinale noyées dans une résine.According to another variant not shown, the casing 142 is a woven film of polyester fibers, kevlar, or carbon or non-woven film fibers, which may be glass fibers, polyester, kevlar, or of carbon. In all cases, the envelope 142 differs from the structure used for the body 140, that is to say a structure based on unidirectional fibers in the longitudinal direction embedded in a resin.

Selon une autre variante non représentée, le corps 18.2 de chaque bloc de fixation 18 n'a pas de paroi de fond 180 au niveau des 2 parois latérales 182.According to another variant not shown, the body 18.2 of each fixing block 18 has no bottom wall 180 at the two side walls 182.

Selon une autre variante non représentée, le profil composite 14 délimite, à chacune de ses extrémités longitudinales, une rainure, qui s'étend au moins au niveau de la partie intermédiaire du profil et débouche sur la surface d'extrémité longitudinale E14 du profil 14. Cette rainure délimite alors deux faces latérales qui sont fixées avec un bloc de fixation 18 pourvu d'une seule paroi latérale 182 et comportant des moyens de liaison à la chaîne cinématique, c'est-à-dire au mécanisme 6. En particulier, une fixation par joints de colle entre les deux surfaces latérales de la paroi latérale 182 et les deux faces latérales de la rainure est privilégiée.According to another variant not shown, the composite profile 14 defines, at each of its longitudinal ends, a groove, which extends at least at the level of the intermediate portion of the profile and opens on the longitudinal end surface E14 of the profile 14. This groove then delimits two lateral faces which are fixed with a fixing block 18 provided with a single side wall 182 and having connecting means to the kinematic chain, that is to say the mechanism 6. In particular, an attachment by glue joints between the two side surfaces of the side wall 182 and the two side faces of the groove is preferred.

Selon une autre variante non représentée, les lames 12 sont fixées sur l'un ou l'autre de deux cadres de griffes. Chaque cadre de griffes est animé d'un mouvement d'oscillations verticales alternatif, en opposition de phase avec l'autre cadre de griffes, mouvement qu'il transmet aux lames 12 qu'ils portent. Le cadre de griffes fait partie du mécanisme 6.According to another variant not shown, the blades 12 are attached to one or the other of two claw frames. Each claw frame is animated by a movement of alternating vertical oscillations, in opposition to the other frame of claws, movement it transmits to the blades 12 they carry. The claw frame is part of the mechanism 6.

Selon une dernière variante non représentée, la mécanique Jacquard comprend plusieurs arbres d'entrée (cas de moteurs individuels actionnant chaque barre oblique, voire chaque lame), un mécanisme 6 de transmission du mouvement étant alors interposé entre chaque arbre d'entrée et au moins une lame 12.According to a last variant not shown, the Jacquard mechanism comprises several input shafts (in the case of individual motors actuating each oblique bar, or even each blade), a mechanism 6 for transmitting the movement being then interposed between each input shaft and at least a blade 12.

Les caractéristiques des modes de réalisation et variantes envisagés ci-dessus peuvent être combinées entre elles pour générer de nouveaux modes de réalisation de l'invention dans le cadre de la revendication indépendante.The features of the embodiments and alternatives contemplated above may be combined with one another to generate new embodiments of the invention within the scope of the independent claim.

Claims (15)

  1. A blade (12) for moving hooks (28) that belong to a Jacquard mechanism (2), each moving hook (28) being able to be immobilized by a selection device to determine the position of a warp yarn on a loom, characterized in that the blade comprises a profile (14) made from a composite material having at least one body (140) made up of unidirectional fibers (F) that extend in the longitudinal direction (X12) of the profile and that are embedded in a resin (R).
  2. The blade according to claim 1, characterized in that the body (140) of the profile comprises an upper part (140c), an intermediate part (140b) and a lower part (140a), the intermediate part having a central core with a thickness (e2) smaller than that (e3) of the lower part (140a) and/or smaller than that (e1) of the upper part (140c).
  3. The blade according to claim 1 or 2, characterized in that the profile (14) comprises a fiber-based film (142) that at least partially covers a thickness variation portion (140.1) of the body.
  4. The blade according to one of the preceding claims, characterized in that the unidirectional fibers (F) of the body (140) of the profile are carbon fibers, and in that the resin is an epoxide resin.
  5. The blade according to one of the preceding claims, characterized in that the cross-section of the profile is constant over the entire length (L14) of the profile (14).
  6. The blade according to one of the preceding claims, characterized in that it further comprises two fastening blocks (18) to a mechanism (6) for transmitting the movement of the Jacquard mechanism, the two blocks being fastened to the two longitudinal ends (E14) of the profile (14).
  7. The blade according to claim 6, characterized in that each fastening block (18) includes at least one side wall (182) across from a side face (S14) of the profile for the fastening of each block (18) with the profile.
  8. The blade according to one of claims 6 or 7, characterized in that the two blocks (18) are fastened to the profile (14) at least by gluing.
  9. The blade according to claims 2 and 8, characterized in that:
    - each fastening block (18) comprises a body (18.2) with a U-shaped section, including a bottom wall (180) and two side walls (182),
    - the two side walls each include an inner surface (S182),
    - the bottom wall is opposite the longitudinal end surface (E14) of the profile,
    - a glue joint (C1) extends between each inner surface (S182) and a side face of the profile (14), at the intermediate part (140b) of the body.
  10. The blade according to one of claims 7 to 9, characterized in that each fastening block (18) comprises upper (18.1) and lower (18.2) end parts that are longitudinally offset (d1) relative to each side wall (182) and that comprise means (184) for fastening to the mechanism (6).
  11. The blade according to one of the preceding claims, characterized in that it further comprises at least one longitudinal interface rail (16) that partially covers the outer surface of the profile and that is able to cooperate with the moving hooks (28) of the Jacquard mechanism.
  12. The blade according to claim 11, characterized in that it comprises several metal interface rails (16) distributed over the length of the profile and spaced apart from one another.
  13. The blade according to one of claims 11 or 12, characterized in that each interface rail (16) has a U-shaped section and is glued around the profile (14).
  14. A Jacquard mechanism (2), comprising at least one blade according to one of the preceding claims.
  15. The Jacquard mechanism according to claim 14, characterized in that the blade is according to claim 12 and in that the Jacquard mechanism defines several receiving volumes (V10) for Jacquard modules comprising the moving hooks (28), and in that the spacing between two rails (16) on the blade (12) is arranged longitudinally between two adjacent receiving volumes (V10).
EP16175403.1A 2015-06-22 2016-06-21 Blade for moving hooks of a jacquard mechanism and jacquard mechanism comprising such a blade Active EP3109352B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1555696A FR3037601B1 (en) 2015-06-22 2015-06-22 TRAINING BLADE OF HOOKS BELONGING TO A JACQUARD AND MECHANICAL JACQUARD MECHANICAL COMPRISING SUCH A BLADE

Publications (2)

Publication Number Publication Date
EP3109352A1 EP3109352A1 (en) 2016-12-28
EP3109352B1 true EP3109352B1 (en) 2019-09-04

Family

ID=53801080

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16175403.1A Active EP3109352B1 (en) 2015-06-22 2016-06-21 Blade for moving hooks of a jacquard mechanism and jacquard mechanism comprising such a blade

Country Status (7)

Country Link
US (1) US9863068B2 (en)
EP (1) EP3109352B1 (en)
KR (1) KR102566938B1 (en)
CN (1) CN106256936B (en)
CA (1) CA2932963C (en)
FR (1) FR3037601B1 (en)
PT (1) PT3109352T (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3037601B1 (en) * 2015-06-22 2018-06-22 Staubli Lyon TRAINING BLADE OF HOOKS BELONGING TO A JACQUARD AND MECHANICAL JACQUARD MECHANICAL COMPRISING SUCH A BLADE
CN107841811B (en) * 2017-10-26 2020-07-10 南通佳立禾机电有限公司 Lifting knife
CN107700011A (en) * 2017-11-20 2018-02-16 常熟纺织机械厂有限公司 Electronic jacquard machine griffes structure
CN109440255B (en) * 2018-10-31 2024-09-10 德清县德盛纺织品有限公司 Cam opening device

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2736939B1 (en) * 1995-07-18 1997-09-05 Staubli Sa Ets MECHANICAL JACQUARD ACTUATED BY COAXIAL SHAFTS
FR2742170B1 (en) * 1995-12-12 1998-01-23 Staubli Verdol IMPROVEMENTS IN MECHANICS OF DOUBLE-RISE ARMOR
DE19651190C1 (en) * 1996-12-10 1998-06-10 Mayer Textilmaschf Electromagnetic jacquard control device
FR2826671B1 (en) * 2001-06-29 2003-09-12 Staubli Lyon DEVICE FOR FORMING A CROWD ON A JACQUARD-TYPE WEAVING MATERIAL
DE20114552U1 (en) * 2001-09-04 2001-10-31 Textilma Ag, Hergiswil Lifting knife for a jacquard device
FR2846343B1 (en) 2002-10-25 2004-12-17 Staubli Lyon CROWD FORMATION MECHANISM AND WEAVING MACHINE EQUIPPED WITH SUCH A MECHANISM
FR2861143B1 (en) * 2003-10-20 2006-01-20 Snecma Moteurs TURBOMACHINE BLADE, IN PARTICULAR BLADE OF BLOWER AND METHOD OF MANUFACTURING THE SAME
FR2873131B1 (en) * 2004-07-19 2006-09-08 Staubli Lyon Sa MECHANISM OF FORMATION OF THE CROWD, MECHANICAL OF ARMOR WITH THREE POSITIONS AND WEAVING EQUIPPED WITH SUCH A MECHANICAL
CN100543209C (en) * 2005-04-25 2009-09-23 浙江大学 The connecting rod-imcomplete gear combined electronic jacquard griffe aperture control mechanism
FR2900666B1 (en) * 2006-05-03 2008-06-20 Staubli Lyon Soc Par Actions S CROWN FORMING MECHANISM, WEAVING EQUIPPED WITH SUCH A MECHANISM AND METHOD OF SELECTING MOBILE HOOKS OF SUCH A MECHANISM
CA2711928A1 (en) * 2008-01-11 2009-07-16 Tomoyuki Shinoda Reinforcing fiber substrate of curved shape, layered product using the same, preform, fiber-reinforced resin composite material, and processes for producing those
CN101831743B (en) * 2010-05-05 2011-08-31 汪建兴 Transmission mechanism for griffe of jacquard
GB201209602D0 (en) * 2012-05-30 2012-07-11 Univ Manchester Woven fabric
CN202945401U (en) * 2012-08-29 2013-05-22 嵊州市三诚电子科技有限公司 Griffe driving mechanism for electronic jacquard machine
CN103290588B (en) * 2013-06-05 2014-09-24 傅加龙 Computer jacquard machine and transmission mechanism thereof
CN204224796U (en) * 2014-11-05 2015-03-25 上海中剑纺织机械有限公司 A kind of Novel jacquard machine harness motion guiding mechanism
FR3037601B1 (en) * 2015-06-22 2018-06-22 Staubli Lyon TRAINING BLADE OF HOOKS BELONGING TO A JACQUARD AND MECHANICAL JACQUARD MECHANICAL COMPRISING SUCH A BLADE

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US20160369430A1 (en) 2016-12-22
US9863068B2 (en) 2018-01-09
PT3109352T (en) 2019-10-28
CA2932963A1 (en) 2016-12-22
FR3037601B1 (en) 2018-06-22
CN106256936A (en) 2016-12-28
CN106256936B (en) 2020-02-21
KR102566938B1 (en) 2023-08-14
EP3109352A1 (en) 2016-12-28
FR3037601A1 (en) 2016-12-23
CA2932963C (en) 2023-08-29
KR20160150593A (en) 2016-12-30

Similar Documents

Publication Publication Date Title
EP3109352B1 (en) Blade for moving hooks of a jacquard mechanism and jacquard mechanism comprising such a blade
CA2564482C (en) Method of manufacturing a composite turbomachine blade and the blade thus made
EP2550153B1 (en) Method for the continuous production of a connecting part made from composite material
EP2681036B1 (en) Component made of composite material comprising boss elements and corresponding production method
EP2307603B1 (en) Assembly of fibrous elements to obtain a composite component
FR2970481A1 (en) FIBROUS STRUCTURE FOR COMPOSITE GEOMETRY COMPOSITE MATERIAL PART
EP1342552B1 (en) Method for producing a monolithic, thermostructural and double-walled composite body and composite body obtained by this method
FR2915458A1 (en) Aircraft fuselage, has junction including external ferrule fixed to panels and to internal ferrule by fixations that ensure fixation of internal ferrule with panels, where panels and external ferrule are made of composite material
WO2010149768A2 (en) Method for manufacturing composite connecting rods, and connecting rods produced according to the method
BE1021537B1 (en) BIELLE MONOBLOC
EP2804810B1 (en) Structural element for an aircraft fuselage that prevents lateral-torsional buckling
EP4051477B1 (en) Woven fibrous preform for manufacturing a fan blade made of composite material
EP3209484A1 (en) Assembly of two parts by a mechanical anchoring element, one of which is made of a composite material
FR2963055A1 (en) ROTOR BLADE OF A COMPOSITE MATERIAL GAS TURBOMOTOR COMPRISING A CONNECTING HAT, A METHOD OF MANUFACTURING THE BLADE
FR2529971A1 (en) PISTON ROD IN FIBER-REINFORCED SYNTHETIC MATERIAL
CA2879924A1 (en) Structural part made of a composite material, such as a rail for a slidable cowl of a thrust reverser of an aircraft engine nacelle
EP1988195B1 (en) Connecting rod for drawing system and loom comprising such a connecting rod
FR2594871A1 (en) Method making it possible to reinforce structures or structural elements, particularly made of concrete, reinforced concrete or prestressed concrete by means of flexible reinforcement elements, device for installing the reinforcement elements, and reinforcement elements employed in the said method
FR2529588A1 (en) EXTRUDED ASSEMBLY FOR WORKING BLADE BAR
WO2022117931A1 (en) Method for manufacturing a vane made of a composite material with integrated attachment lugs and platforms
EP1972421A1 (en) Fibrous assembly for a composite part, composite part and method of manufacturing such a composite part
EP2466036B1 (en) Method for reinforcing a construction structure by means of reinforcing strips
FR3147607A1 (en) Assembly comprising at least one composite part and fixing means

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

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

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170606

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RIC1 Information provided on ipc code assigned before grant

Ipc: D03C 3/24 20060101AFI20190226BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20190416

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1175471

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190915

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602016019751

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Ref document number: 3109352

Country of ref document: PT

Date of ref document: 20191028

Kind code of ref document: T

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20191010

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190904

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191205

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1175471

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190904

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200224

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602016019751

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG2D Information on lapse in contracting state deleted

Ref country code: IS

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200105

26N No opposition filed

Effective date: 20200605

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200621

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200621

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190904

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230509

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230626

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20230702

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20240627

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240625

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20240606

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20240604

Year of fee payment: 9

Ref country code: BE

Payment date: 20240627

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20240619

Year of fee payment: 9