EP3009545A1 - Heddle for weaving loom and loom provided with such a heddle - Google Patents

Heddle for weaving loom and loom provided with such a heddle Download PDF

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Publication number
EP3009545A1
EP3009545A1 EP15189888.9A EP15189888A EP3009545A1 EP 3009545 A1 EP3009545 A1 EP 3009545A1 EP 15189888 A EP15189888 A EP 15189888A EP 3009545 A1 EP3009545 A1 EP 3009545A1
Authority
EP
European Patent Office
Prior art keywords
cavity
link
axis
strand
longitudinal
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.)
Granted
Application number
EP15189888.9A
Other languages
German (de)
French (fr)
Other versions
EP3009545B1 (en
Inventor
Michel Herrmann
Philippe Gaubert
Damien Bouchet
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 EP3009545A1 publication Critical patent/EP3009545A1/en
Application granted granted Critical
Publication of EP3009545B1 publication Critical patent/EP3009545B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds
    • D03C9/024—Eyelets
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds
    • D03C9/026—Material used
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/06—Heald frames
    • D03C9/0608—Construction of frame parts
    • D03C9/0616—Horizontal upper or lower rods
    • D03C9/0625—Composition or used material

Definitions

  • the invention relates to a guide rail of a warp for a loom, and to a loom equipped with such a loom.
  • a jacquard loom is equipped with a Jacquard mechanism that controls several hooks.
  • Each hook is, most often, associated with several arches.
  • Each arch is connected to one end of a guide rail of a warp thread, which is connected by another end to a frame of the craft via a spring.
  • Each arm is provided with an eyelet for the passage of the warp and is composed of a link and a smooth body including two strands. These parts can be manufactured separately.
  • the bar is then called composite and requires a commitment of the link and strands before the assembly of the link and smooth body and before the establishment of the smooth.
  • EP-A-1,989,346 use a link provided at both ends of a longitudinal hole and two strands, each provided with a reduced section end.
  • the reduced section end of the strand is introduced into the longitudinal housing of the link. Placing the parts together in one another for their assembly is delicate so as not to damage the parts when the strand is engaged in the link.
  • the link / strand assembly then takes place "blindly". Especially when gluing is chosen, it is impossible to check the thickness of the glue joint and the good distribution of the glue.
  • the engagement in a longitudinal housing limits the residual sections of the link around the longitudinal hole and the end sections of the strands.
  • CN-Y-201228305 discloses a smooth which, in the embodiment of Figures 4 to 6 , comprises a porcelain link provided with two housings and four cavities for receiving a portion of the strands of a smooth body molded around the link.
  • Each cavity comprises two side walls and a bottom in the transverse direction.
  • the strands are formed during overmolding and therefore are not intended to be engaged in the cavities.
  • these cavities are arranged in pairs on each transverse side of the link with respect to a main plane of the link so that, at the longitudinal level of the receiving cavity, each strand covers the link by two opposite transverse internal sides of the link. , just as each link covers the strand by two opposite transverse external sides of the link.
  • the invention more particularly intends to remedy by proposing a composite rail having a high resistance to forces and a limited space requirement.
  • the invention relates to a guide web of a warp for a loom, the arm extending in length along a longitudinal axis and being formed by the assembly of a smooth body comprising at least one strand and a link including an eyelet for passing the warp thread, and defining a main plane.
  • a first piece, among the strand and the link is provided, before assembly, with an end portion
  • the second piece, among the strand and the link is provided, before assembly, with a receiving cavity of the end portion formed at a longitudinal end of this second piece and the receiving cavity is provided with a bottom and opens outwardly of the second piece, along a transverse axis perpendicular to the main plan.
  • the covering of the link and the strand at a cavity with a bottom and opening in the transverse direction makes it possible to arrange an assembly in a minimum transverse bulk and to limit the bulk of the composite rail in the loom, and therefore the impact of the smooth on the density of son of the loom.
  • the invention also relates to a loom equipped with several guide rails of a warp thread.
  • This loom is characterized in that at least one guide rail is as mentioned above.
  • the Jacquard type loom M represented by figure 24 is equipped with a Jacquard mechanism 102 which controls several hooks 104, one end of which lower end is associated with several arches 106.
  • a lower end 106a of each arch 106 is connected to an upper end 1a of a guide rail 1 of a warp, each arm 1 being subjected to the action of a spring 108 is attached to a latching beam 110 by a rod 112, the beam 110 being fixed on a frame of the trade M.
  • the elements 106, 1, 108, 110 and 112 form a harness H of the trade M.
  • the Figures 1 to 8 show a first embodiment of a guidewire 1 of a warp yarn for a jacquard loom.
  • the guide rail 1 extends in length along a longitudinal axis X1 and comprises a smooth body 10 and a link 2.
  • the smooth body 10 comprises two separate strands 4.
  • Y1 and Z1 are two axes of the bar 1, perpendicular to the axis X1, the axis Y1 corresponding to the width of the link 2, while the transverse axis Z1 corresponds to its thickness.
  • the guide rail is formed by assembling the rail body 10 and the link 2.
  • connection means 11A or 11B to an element of the harness H, specifically to a spring 108 or to an arch 106.
  • the connection means 11A comprise an external thread 12 which is intended to be screwed into a spring 108.
  • the connection means 11B are intended to be connected to an arcade 106 of the Jacquard H harness.
  • the means 11B comprise a tip 14 which forms an opening 16 for passage and jamming of the arch 106 and a tube 18 of rigid connection, made of plastic material or metal.
  • the connection means 11B comply with EP-B-1 741 815 . Alternatively, other connection means may be provided at the ends of the smooth body 10.
  • the link 2 is plane and extends in length along a longitudinal axis X2.
  • Y2 is a lateral axis, perpendicular to the axis X2.
  • the link 2 includes a central portion 20 which has lateral edges 21 rounded by polishing.
  • the central portion 20 is provided with an orifice which forms an eyelet 22 for the passage of a warp thread, which eyelet 22 passes through the link 2 from one end to the other along a transverse axis Z2 perpendicular to the axes X2 and Y2.
  • the axes X2, Y2 and Z2 are concurrent in the center of the eyelet 22.
  • the eyelet 22 is of rectangular shape in a main plane P of the link 2 which contains the axes X2 and Y2.
  • the main plane P corresponds to the median plane of the two surfaces of the link 2 of maximum area.
  • the Figures 1 and 2 are parallel to this main plane P, which is visible at figure 8 .
  • the axes X2, Y2 and Z2 are respectively coincident with the axes X1, Y1 and Z1 of the rail 1.
  • the link 2 is symmetrical with respect to a plane of symmetry P S which contains the axes Y2 and Z2.
  • L22 the length of eyelet 22 measured parallel to the longitudinal axis X2 and L20 the length of the central portion 20 of the link 2 measured parallel to the axis X2. This length L20 is greater than or equal to five times the length L22.
  • l22 the width of the eyelet 22 measured parallel to the lateral axis Y2.
  • l20 is the width of the central portion 20 of the link 2 measured parallel to the axis Y2.
  • the width l22 of the eyelet 22 is greater than half the width l20 of the central portion 20 of the link 2 and is preferably equal to 60% of the width l20.
  • the central portion 20 of the link 2 is extended, before assembly of the rail 1, on each side along the longitudinal axis X2 by a tab 24.
  • the tabs 24 have, along the axis Y2, a width l24 reduced compared to the central portion 20.
  • Each lug 24 has a free longitudinal end 240 opposite to the central portion 20. The reduction in width along the Y2 axis is progressive, from the central portion 20 to each lug 24.
  • Each lug 24 forms a longitudinal end of the link 2.
  • the main plane P of the link corresponds to the main plane of the longitudinal ends 24 of the link 2.
  • the central portion 20 has, in the vicinity of each leg 24, two round cams 23 which provide the junction between the portion of width l20 of the central portion 20 and the tab 24 adjacent.
  • the transition zone 25 forms an end portion of the link 2.
  • the link 2 includes a housing 26 at each transition zone 25.
  • the housings 26 are formed by holes passing through the link 2 from one side parallel to the axis Z2 and have a circular section in the main plane P.
  • the housings or holes 26 have an oblong or polygonal section in the main plane P.
  • the housings 26 are intended to receive resin.
  • each edge 27 is provided with two notches 28A and 28B offset along the axis X2 and which form resin receiving housings, as can be seen from the explanations that follow.
  • the notches 28A and 28B extend over the entire thickness of the tabs 24 in the direction of the Z2 axis and are in the form of rectangular slots in the main plane P.
  • the notches 28A and 28B of the link 2 are crenellated semicircularly in the main plane P.
  • the housing 26 and the notches 28A and 28B are offset, along the longitudinal axis X2, with respect to each other.
  • the link 2 is in mono-thickness metal.
  • the link 2 is manufactured by cutting a sheet and its edges 21 are polished to provide roundings non-aggressive son.
  • the link 2 is polyamide or ceramic.
  • X4, Y4 and Z4 respectively denotes a longitudinal axis and two transverse axes of a strand 4.
  • the axes X4, Y4 and Z4 are respectively coincident with the axes X1, Y1 and Z1 of the stringer 1.
  • Each strand 4 comprises a rod 41 having a round section along a transverse plane P T perpendicular to the longitudinal axis X4 and parallel to the axes Y4 and Z4.
  • the rod 41 extends in length between a first longitudinal end 42, on which are provided the connection means 11 A or 11 B and a second longitudinal end 44 at which the assembly with the link 2 is made.
  • end 44 each strand 4 widens along the lateral axis Y4 and thins along the transverse axis Z4, away from the rod 41.
  • each end 44 has a section transverse which flattens away from the stem 41.
  • each strand 4 has a receiving cavity 48, formed on a single transverse side of the strand 4, which receives a lug 24 of the link 2.
  • the free end 240 is received in the receiving cavity 48.
  • all the tab 24 is received in the cavity 48.
  • the receiving cavity 48 opens in the direction of the longitudinal axis X4 and in the direction of the transverse axis Z4.
  • the receiving cavity 48 is delimited laterally in the direction of the axis Y4 by two side walls 49.
  • the receiving cavity 48 has a bottom 51 which delimits it along the transverse axis Z4.
  • the receiving cavity 48 opens on the outside of the strand 4 along the longitudinal axis X4, towards a free end 54 of the strand 4, opposite the end 42, and along the transverse axis Z4, perpendicular to the main plane P, opposite the bottom 51.
  • the side walls 49 are rounded, that is to say that they have external longitudinal edges rounded on their edge opposite the cavity 48.
  • 482 is the end of the cavity 48 through which this cavity opens outward along the axis X4.
  • 484 is the end of the cavity 48 opposite the end 482, that is to say the closed end of the cavity 48.
  • the end 484 is semicircular and r48 is noted its inner radius.
  • the bottom 51 of the cavity 48 is extended, beyond the end 482 and in the direction of the longitudinal axis X4 towards the link 2, by a final portion 52 which protrudes longitudinally from the side walls 49 and which is not not itself provided with such walls.
  • the final portion 52 has a free end 54.
  • the final portion 52 tapers towards the free end 54 in width along the lateral axis Y4 and also in thickness along the transverse axis Z4.
  • the final portion 52 has two edges 52A and 52B which converge towards the axis X4, approaching the free end 54.
  • the final portion 52 is flush with the bottom 51.
  • the receiving cavity 48 opens completely on the outside of the strand 4 along the longitudinal axis X4.
  • the side walls 49 are each extended by a beveled edge 50 towards the final portion 52, the bevelled edges 50 making the transition between the side walls 49 and the final portion 52.
  • Each side wall 49 has an inner surface 490 which has a rough and / or striated surface condition obtained directly during the manufacture of the strand 4.
  • the link 2 and the strand 4 overlap respectively with the tab 24 and the transition zone 25 and by the bottom 51 and the final portion 52.
  • the overlap between the parts 2 and 4 takes place at a single level. transverse side of each of these pieces.
  • the part 2 is in overlap of the part 4 by a single transverse side of the part 2.
  • the depth of the receiving cavity 48 measured parallel to the transverse axis Z4 at the side walls 49 is noted p48.
  • the depth p48 varies along the axis X4.
  • the depth p48 is greater than the thickness e24, so that when the tab 24 is received in the cavity 48 of the strand 4 with the leg 24 in contact with the bottom 51, the side walls 49 protrude beyond the tab 24 in a direction parallel to the axes Z2 and Z4.
  • the cavity 48 limits the contacts between the tab 24 received in the cavity 48 and the neighboring son of the smooth.
  • Each cavity 48 is generally complementary to the tab 24 that it receives.
  • the depth p48 is equal to the thickness e24.
  • housing 46A, 46B and 46C are formed by holes through the end 44 from side to side parallel to the transverse axis Z4.
  • the two housings 46A and 46B pass through the bottom 51 of the receiving cavity 48, while the housing 46C passes through the final portion 52 of the strand 4.
  • the three housings 46A, 46B and 46C are offset along the longitudinal axis X4.
  • the two housings 46A and 46B open into the longitudinal groove 56A and the housing 46C opens into the longitudinal groove 56B.
  • Each housing 46A, 46B and 46C has a circular section.
  • the housings 46A, 46B and 46C are holes having an oblong or polygonal section.
  • the width of the cavity 48 measured parallel to the axis Y4 between the side walls 49 is noted La48.
  • the cavity 48 has progressive variations in width l48 along the axis X4.
  • the radius r48 is less than half the maximum width l48, preferably between 20 to 40% of the maximum width l48, which creates a gradual reduction in the width of the cavity 48 to enhance the service life of the cavity part. .
  • the strand 4 is made of polyamide and is manufactured by injection.
  • the strand 4 is reinforced with fibers, for example glass fibers or carbon fibers.
  • the external threads 12 and end 14 of the connection means 11A and 11B are obtained directly during the injection of the strands and are thus integral with the rods 41.
  • the transition zone 25 of the link 2 is arranged longitudinally in overlap of the portion final 52, so that at the transition between the link 2 and each strand 4, the central portion 20 of the link 2 and the strand 4 are overlapping one on the other.
  • the transition between the link 2 and each strand 4 does not occur abruptly at the ends 240 and 44 of two parts but, instead, it takes place while the link 2 and the strand 4 are overlapping.
  • the width of the free end 54 of the final portion 52 measured parallel to the lateral axis Y4 is denoted by l54.
  • l54 the width of the link 2 between the rounded cams 23, this width l23 being measured parallel to the axis Y2 and along the axis X2 at the same longitudinal level as the free end 54 when the bar is assembled.
  • the width l54 is smaller than the width l23. This geometry limits the risk of hooking of the wires in friction against the rail 1.
  • the link 2 and each strand 4 overlap respectively in the longitudinal direction X1, so that the housings 46A and 46B are respectively vis-à-vis along the axis Z1, with the notches 28A and 28B and so as to the housing 46C is vis-à-vis along the axis Z1 with the housing 26.
  • the housing 26, 28A and 28B of the link 2 and the housing 46A, 46B and 46C of the strand 4 then form five pairs of housing.
  • the housing pair 31 is formed by the housing 46A and the notch 28A located above the axis X1 in this figure and which is the closest to the free end 240.
  • the housing pair 32 is formed by the housing 46A and the notch 28A located below the axis X1 in this figure and which is closest to the free end 240.
  • the couples 33 and 34 are respectively formed by the housing 46B and the notches 28B disposed respectively above and below the axis X1 and furthest from the free end 240.
  • the pair 35 is formed by the housings 46C and 26.
  • the link 2 provided with its two legs 24 is engaged with the strand 4 provided with its two receiving cavities 48.
  • the two strands 4 are placed on a flat bearing surface horizontal, the cavities 48 being open on the top, that is to say open on the same side along the axis Z1.
  • the strand 4, which is intended to be linked to an arch, is provided with its connection tube 18 prior to assembly with the link 2.
  • the link 2 is then placed on the two strands 4, with its legs 24 engaged in each of the cavities 48, in contact with the bottoms 51 of the cavities 48.
  • a controlled amount of epoxy resin is then deposited in each housing pair 31 to 35.
  • the resin is an acrylic resin. This resin is deposited in each pair of housing when it is still liquid and spreads under the effect of gravity so that it fills each pair of housing. The excess of resin is distributed in the grooves 56A and 56B and in the receiving cavity 48.
  • the resin is cured by heating at a temperature that depends on its composition. Alternatively, the resin cures at room temperature or under ultraviolet radiation or LED.
  • the resin solidifies in the housing pairs.
  • the solidified resin then forms connecting members 61, 62, 63, 64 and 65 in the form of rivets which each extend through the link and the strand along the transverse axis Z1.
  • the resin is thus deposited in the cavity 48 in each housing 26, 28A, 28B of the link 2 from the top of the rail and spreads under the effect of gravity and by capillarity into the housings 46A, 46B, 46C of the strand 4 and in the grooves 56A and 56B.
  • each assembly member 6i is without play in the housing pair 3i.
  • Each rivet 6i has a body 6A which is located at the housing pair 3i.
  • Each rivet 6i also has a head 6B, on each side of the housing pair 3i.
  • the heads 6B are formed of the excess resin which overflows on the end 44 in the grooves 56A and 56B and on the tab 24 received in the receiving cavity 48.
  • the housing 46A is common to the housing pairs 31 and 32, the rivets 61 and 62 are monobloc. The same goes for the housing 46B, the pairs 33 and 34 and the rivets 63 and 64.
  • rivets 6i ensure an assembly between the end end 44 of each strand 4 and the corresponding tab 24 of the link 2.
  • the assembly rivets 6i act as obstacles disposed between the strand 4 and the link 2 and prevent a relative movement between the link 2 and the strand 4 in both directions along the longitudinal axis X1 and in both directions of the lateral axis Y1.
  • the heads 6B of the rivets 6i prevent the link 2 and the strand 4 from moving in the transverse direction Z1.
  • the rivets 6i block the relative movement of the link 2 and strand 4 around the axis X1, the axis Y1 and the axis Z1.
  • the rivets 6i do not solicit the link 2 or the strands 4 during their establishment and the hardening of the resin.
  • the resin may extend between several housing pairs, parallel to the longitudinal axes X1 and lateral Y1. The resin then forms bridges which connect the heads 6B of some of the rivets 6i with each other. In this case, the mechanical blocking force is improved.
  • grooves 56A and 56B may alternatively be communicating to allow the creation of a bridge between the rivets 63, 64 on the one hand, and 65, on the other hand.
  • the fasteners 6i in particular the rivet bodies 6A, the rivet heads 6B and any bridges, remain contained in the interior volume of the receiving cavity 48 and in the volume of the grooves 56A and 56B on the opposite side. .
  • the cavity 48 and the grooves 56A and 56B then protect the neighboring wires from friction with the rivets 6i.
  • the housing accommodating the resin passes through the link 2 and the strands 4 in the direction of the transverse axis Z1, it is possible to control the good implementation of the link 2 with respect to each strand 4 and also the proper implementation resin in housing pairs 3i for the formation of rivets 6i homogeneous and with controlled sections.
  • the receiving cavity 48 opening in a direction perpendicular to the main plane P it is possible to limit the overall size of the rail in the directions Y1 and Z1 and thus to limit the impact of the rail on the wire density of the rail. loom.
  • the receiving cavity 48 is formed in the link 2 and the end 44 of the strand 4 is of reduced width and received in this cavity 48.
  • the strand 4 and the link 2 are in overlap and form couples of housing 3i.
  • FIGS. 12 to 17 show a second embodiment of a guide web 1001 of a warp of a Jacquard loom.
  • the elements of the second embodiment bear the same references as those of the first embodiment increased by 1000.
  • the elements of the second embodiment which are similar to those of the first embodiment are not described in detail.
  • the steel link 1002 is symmetrical with respect to the plane of symmetry P S ; it comprises a central portion 1020 and two lugs 1024.
  • a main plane P of the link 1002 corresponds to the median plane of the two surfaces 1020A and 1020B of maximum area.
  • Each tab 1024 forms a longitudinal end of the link 1002 and has, in the direction of the transverse axis Z1, a thickness reduction towards its free end 1240. This reduction is obtained by a localized crushing of the link 1002, which shows the transition part 1242.
  • e20 the thickness of the central portion 1020 of the link 2 measured parallel to the transverse axis Z1 and also note e24 the thickness of a tab 1024 of the link 1002 measured parallel to the transverse axis Z1, beyond of the transition portion 1242 relative to the central portion 1020.
  • the thickness e24 is less than the thickness e20.
  • the transition portion 1242 is flat-bottomed V-shaped with two sides 1242A and 1242B and a central bottom 1242C.
  • Each leg 1024 also has a cambered portion 1244.
  • the transition portion 1242 and the cambered portion 1244 together define a niche 1029.
  • the cambered portion 1244 is disposed longitudinally along the axis X1 between the niche 1029 and the free end 1240 link 1002.
  • each edge 1027 are the longitudinal edges of each lug 1024.
  • Each edge 1027 has a projecting projection 1028, with respect to the edge 1027, in the direction of the lateral axis Y1.
  • the projections 1028 are arranged longitudinally between the cambered portion 1244 and the free end 1240 of the link 1002.
  • the arched portion 1244 is respectively deflected in an inclined manner, with respect to the intermediate portion 1246 and a flat portion which defines the free end 1240, at the longitudinal level of two straight lines D22 and D24 parallel to the axis Y1.
  • portion 1242 is arched transversely to the main plane P, as represented by the arrow F2 at the figure 13 .
  • the smooth body 1010 has two separate strands 1004.
  • Each strand 1004 comprises, at its end 1044, a receiving cavity 1048, formed on a single transverse side of the strand 1004, opening on the outside of the strand 1004 along the transverse axis Z1 perpendicular to the main plane P of the link.
  • the cavity 1048 has a bottom 1051 which delimits it along the transverse axis Z1 into which a through housing 1046 opens.
  • the housing 1046 makes it possible to form two lateral notches 1049A on the inside of the side walls 1049 of the cavity 48.
  • the final portion 1052 of each strand 1004 ends with a free end 1054.
  • the final portion 1052 is raised relative to the bottom 1051. It limits the outlet of the cavity 1048 along the axis X1.
  • a distal cavity 1048 ' is formed opposite the portion 1052, on a single transverse side of the strand 1004, this cavity 1048' being defined by the dihedron formed by the face of the final portion 1052 visible at the figure 14 and by the half-plane of the bevelled edges 1050 of the walls 1049 which join this face, on either side of the mouth of the cavity 1048.
  • the bottom of the distal cavity 1048 'in the transverse direction Z1 is formed by the final portion 1052.
  • the cavity 1048 ' is devoid of side wall, that is to say that it is not delimited by material walls along the lateral axis Y1.
  • each lug 1024 In the assembled configuration of the rail 1001, each lug 1024, with its free end 1240, is received in the receiving cavity 1048 provided on each strand 1004 and the distal cavity 1048 'receives the intermediate portion 1246 of the lug 1024.
  • each end portion 1052 is received in the niche 1029 of the link 1002.
  • the niche 1029 thus also constitutes a receiving cavity for the longitudinal end of the strand 1004 formed by the final portion 1052.
  • bottom 1251 of this cavity 1029 is constituted by the face of the intermediate portion 1246 facing the transition portion 1242.
  • the edges 1242A and 1242B of the transition portion 1242 cooperate with reduced lateral clearance with the edges 1052A and 1052B of the final portion 1052 and thus constitute sidewalls for the recess or cavity 1029.
  • the link 1002 and the strand 1004 overlap respectively with the bottom 1251 of the lug 1024 and the final portion 1052.
  • the overlap between the pieces 1002 and 1004 takes place at a single transverse side of each of these
  • the part 1002 is in overlap of the part 1004 by a single transverse side of the part 1002.
  • the assembly between a tab 1024 of the link 1002 and an end 1044 of a strand 1004 takes place in a minimal space and optimizing the transitions between link 1002 and strand 1004.
  • the free end 1054 of the portion 1052 is not likely to hang wires adjacent to the rail 1001 because this free end 1054 is received in the niche 1029, at the two side walls forming the transition portion 1242.
  • the link 1002 and each strand 1004 overlap in the longitudinal direction X1, so that the housing 1046 is respectively disposed along the axis X1, at the projections 1028.
  • the housing 1046 of the strand 4 and the projections 1028 of the link 1002 then form a pair of housings.
  • the assembly between the strand 1004 and the link 1002 is made by clipping, by engagement of the link 1002 provided with its two legs 1024 with the two strands 1004 each provided with a receiving cavity 1048 and a distal cavity 1048 '.
  • the tab 1024 is placed above the cavity 1048 and then brought closer to the bottom 1051 along the axis Z1.
  • the approaching action elastically deforms the side walls 1049 of the receiving cavity 1048 which deviate in the direction Y1, so that to allow the projections 1028 to be placed in the two notches 1049A.
  • the walls 1049 return elastically in the initial position.
  • FIGS. 18 to 24 show a third embodiment of a guide rail 1 of a warp yarn for a Jacquard loom. Since this embodiment is structurally close to the first embodiment mentioned above, the elements common to these two embodiments carry the same references. In the following, the elements of this third embodiment which are similar to those of the first embodiment are not described in detail.
  • the link 2 of this embodiment differs from that of the first embodiment in that the edges 27 of the reduced width tabs 24 are devoid of notch 28. In other words, these edges 27 are straight. Furthermore, the central portion 20 of the eyelet 22 is provided, in each transition zone 25 and in the vicinity of each leg 24, with two housings 26 which are aligned along the axis X 2, which pass through the central portion 20 from apart and which are circular section.
  • each strand 4 comprises a cavity 48 which is defined between two side walls 49, a bottom 51 and a ceiling 53 opposite the bottom 51 and which connects the side walls 49.
  • the cavity 48 of this embodiment is not open opposite the bottom 51, along a transverse axis Z4 defined as in the first embodiment.
  • a final portion 52 of the end 44 which extends the bottom 51 in the direction of the longitudinal axis X4 of the strand 4, that is to say in the direction of the longitudinal axis X1 of the stringer 1 in mounted configuration thereof, towards the eyelet 22 of the link 2, is provided with two housings 46C which pass through this final portion 52 from one side and which are also circular section.
  • the cavity 48 of each end 44 receives a lug 24 of the link 2.
  • the two housings 26 formed at one end of the central portion 20 are respectively aligned with the two housings 46C formed in the final portion 52 of the adjacent strand 4.
  • the cavity 48 is formed in a proximal portion of the end 44, that is to say in a portion of this end closer to the middle of the strand 4 than the final portion 52. Furthermore, a distal cavity 48 ' is arranged facing the final portion 52, on a single transverse side of the strand 4, this cavity being defined by the dihedral formed by the face of the final portion 52 visible to the figure 19 and by the half-plane of the beveled edges 50 of the walls 49 which join this face, on either side of the mouth of the cavity 48. The bottom of the distal cavity 48 'in the direction Z1 is formed by the portion final 52.
  • the cavity 48 ' is devoid of side wall, that is to say, it is not delimited by material walls along the lateral axis Y1.
  • This distal cavity 48 ' receives, in mounted configuration the smooth 1, the transition zone 25 of the central portion 20 of the link 2 in which are formed the housing 26.
  • p48 ' the depth of the cavity 48' measured parallel to the transverse axis Z4 between the end portion 52 and the end of the bevelled edges 50 furthest from the final portion 52.
  • the depth p48 ' is constant along the X1 axis.
  • the depth p48 ' is greater than the thickness e25.
  • the width of the transition portion 25 measured parallel to the lateral axis Y1 of the smooth 1.
  • l54 the width of the free end 54 of the final portion 52 also measured parallel to the axis Y1.
  • the width l54 is less than the width l25 at the same longitudinal level.
  • the final portion 52 has a progressive reduction in width along the lateral axis Y1, towards the free end 54.
  • the transition zone 25 of the link 2 is arranged along the axis X1 in recovery of the final portion 52 at the longitudinal level of the cavity 48 '. This transition zone 25 has a progressive reduction in width along the lateral axis Y1 towards the free end 240 of the link 2.
  • this rail 1 when the link 2 provided with its two legs 24 is engaged with the two strands 4 each provided with its receiving cavity 48 and its distal cavity 48 ', the housing pairs 35 are formed, it is possible to flow in each of them a fastener type rivet 65 resin. After solidification of the resin, this rivet secures the parts 2 and 4 at their overlapping ends.
  • the parts 2 and 4 overlap by the transition zone 25 and the final portion 52.
  • the overlap between the parts 2 and 4 takes place at a single transverse side of each of these parts.
  • the part 2 is in overlap of the part 4 by a single transverse side of the part 2.
  • each of these parts 2 and 4 can be accessed by a transverse side.
  • the ceiling 53 may be pierced with an opening giving access to the interior of the cavity 48, close to the closed end 484 of this cavity, that is to say its end opposite its mouth. This makes it possible, in particular, to visualize the tab 24 of the link in place in the proximal cavity 48.
  • the cavity 48 is removed in each strand 4, as well as the tab 24 at each end of the central portion 20.
  • the overlap between the parts 2 and 4 takes place only at the level of the final portion 52, by engagement of the transition zone 25 of the end of the central portion 20 in the cavity 48 ', with a covering of a single transverse side of each of the rooms 2 and 4.
  • housing torques comparable to the housing pairs 31 to 34 of the first embodiment may extend at the level of the closed cavity 48.
  • housing units of adapted form are provided in the tabs 24 as well as in the bottom 51 and / or in the ceiling 53 and / or in the side walls 49.
  • the housing of the tabs 24 may be notches, as in the first embodiment, or cross-sectional dwellings such as the housings 26 of the third embodiment.
  • two housings are in facing relation if they are at least partially opposite one another and communicate with each other before the resin is removed.
  • the projections of the housing outlets of the pair of dwellings facing the other housing of the couple of dwellings on a plane perpendicular to the direction of vis-à- screws overlap at least partially.
  • the overlap of the link 2 and the strand 4 on one transverse side allows for a link link / strand in a minimum transverse size. Indeed, the first piece does not extend on either side of the second piece in the transverse direction.
  • the link / strand junction is made with minimal link / strand interfaces and optimized to limit the embrittlement of neighboring wires in friction against the stringer.
  • the two pieces, the strand and the link both remain accessible during the assembly operation, which makes it possible to control the assembly.
  • the use of a cavity opening perpendicularly to the main plane of the link makes it possible to limit the bulk of the composite rail in the loom, and therefore the impact of the rail on the density of son of the loom.
  • Trade M is represented at figure 25 with smoothers 1 according to the first embodiment. It can also be equipped with hinges 1001, 2001 and 1 of the other embodiments.
  • the invention is described above in the context of its application on a Jacquard type loom. However, it is applicable to frames and frames.

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Abstract

Cette lisse de guidage d'un fil de chaîne pour un métier à tisser s'étend en longueur selon un axe longitudinal (X4) et est formée par l'assemblage d'un corps de lisse comportant au moins un brin, et d'un maillon incluant un oeillet de passage du fil de chaîne, et définissant un plan principal (P). Une première pièce, parmi le brin et le maillon, est pourvue, avant assemblage, d'une partie d'extrémité. La deuxième pièce, parmi le brin et le maillon, est pourvue, avant assemblage, d'une cavité (48) de réception de la partie d'extrémité ménagée au niveau d'une extrémité longitudinale (44) de cette deuxième pièce. La cavité de réception (48) est pourvue d'un fond (51) et débouche sur l'extérieur de la deuxième pièce, selon un axe transversal (Z4) perpendiculaire au plan principal (P).This guidewire of a warp yarn for a loom extends in length along a longitudinal axis (X4) and is formed by the assembly of a stringer body having at least one strand, and a link including an eyelet for passing the warp thread, and defining a main plane (P). A first piece, among the strand and the link, is provided, before assembly, an end portion. The second piece, among the strand and the link, is provided, before assembly, with a cavity (48) for receiving the end portion formed at a longitudinal end (44) of the second piece. The receiving cavity (48) is provided with a bottom (51) and opens on the outside of the second part, along a transverse axis (Z4) perpendicular to the main plane (P).

Description

L'invention a trait à une lisse de guidage d'un fil de chaîne pour un métier à tisser, ainsi qu'à un métier équipé d'une telle lisse.The invention relates to a guide rail of a warp for a loom, and to a loom equipped with such a loom.

Un métier à tisser de type Jacquard est équipé d'une mécanique Jacquard qui commande plusieurs crochets. Chaque crochet est, le plus souvent, associé à plusieurs arcades. Chaque arcade est reliée à une extrémité d'une lisse de guidage d'un fil de chaîne, laquelle est reliée par une autre extrémité à un bâti du métier via un ressort. Chaque lisse est pourvue d'un oeillet de passage du fil de chaîne et est composée par un maillon et un corps de lisse incluant deux brins. Ces pièces peuvent être fabriquées séparément. La lisse est alors appelée composite et nécessite un engagement des maillon et brins avant l'assemblage des maillon et corps de lisse et avant la mise en place de la lisse.A jacquard loom is equipped with a Jacquard mechanism that controls several hooks. Each hook is, most often, associated with several arches. Each arch is connected to one end of a guide rail of a warp thread, which is connected by another end to a frame of the craft via a spring. Each arm is provided with an eyelet for the passage of the warp and is composed of a link and a smooth body including two strands. These parts can be manufactured separately. The bar is then called composite and requires a commitment of the link and strands before the assembly of the link and smooth body and before the establishment of the smooth.

A ce sujet, il est connu de EP-A-1 989 346 d'utiliser un maillon pourvu aux deux extrémités d'un trou longitudinal et deux brins, pourvus chacun d'une extrémité de section réduite. L'extrémité à section réduite du brin est introduite dans le logement longitudinal du maillon. La mise en place des pièces l'une dans l'autre pour leur assemblage est délicate pour ne pas détériorer les pièces lors de l'engagement du brin dans le maillon. L'assemblage maillon/brin a lieu ensuite « en aveugle ». En particulier lorsque le collage est choisi, il est impossible de vérifier l'épaisseur du joint de colle et la bonne répartition de la colle. De plus, l'engagement dans un logement longitudinal limite les sections résiduelles du maillon autour du trou longitudinal et les sections d'extrémité des brins.In this regard, it is known EP-A-1,989,346 use a link provided at both ends of a longitudinal hole and two strands, each provided with a reduced section end. The reduced section end of the strand is introduced into the longitudinal housing of the link. Placing the parts together in one another for their assembly is delicate so as not to damage the parts when the strand is engaged in the link. The link / strand assembly then takes place "blindly". Especially when gluing is chosen, it is impossible to check the thickness of the glue joint and the good distribution of the glue. In addition, the engagement in a longitudinal housing limits the residual sections of the link around the longitudinal hole and the end sections of the strands.

Par ailleurs, CN-Y-201228305 divulgue une lisse qui, dans le mode de réalisation des figures 4 à 6, comprend un maillon en porcelaine pourvu de deux logements et de quatre cavités de réception d'une partie des brins d'un corps de lisse surmoulée autour du maillon. Chaque cavité comprend deux parois latérales et un fond dans la direction transversale. Les brins sont formés lors du surmoulage et ne sont donc pas destinés à être mis en engagement dans les cavités. En outre, ces cavités sont disposées deux à deux de chaque côté transversal du maillon par rapport à un plan principal du maillon si bien que, au niveau longitudinal de la cavité de réception, chaque brin recouvre le maillon par deux côtés transversaux opposés internes du brin, de même que chaque maillon recouvre le brin par deux côtés transversaux opposés externes du maillon. Cet agencement induit un encombrement important de la liaison maillon/brin dans la direction transversale. Le surmoulage est susceptible de générer des bavures sur les faces latérales du brin lorsque le moule se ferme autour du maillon pendant l'injection du matériau plastique. Les lisses doivent être reprises par polissage pour supprimer les bavures qui pourraient abimer les fils voisins lorsqu'ils frottent sur la lisse pendant le tissage.Otherwise, CN-Y-201228305 discloses a smooth which, in the embodiment of Figures 4 to 6 , comprises a porcelain link provided with two housings and four cavities for receiving a portion of the strands of a smooth body molded around the link. Each cavity comprises two side walls and a bottom in the transverse direction. The strands are formed during overmolding and therefore are not intended to be engaged in the cavities. In addition, these cavities are arranged in pairs on each transverse side of the link with respect to a main plane of the link so that, at the longitudinal level of the receiving cavity, each strand covers the link by two opposite transverse internal sides of the link. , just as each link covers the strand by two opposite transverse external sides of the link. This arrangement induces a large bulk of the link link / strand in the transverse direction. The overmolding is likely to generate burrs on the lateral faces of the strand when the mold closes around the link during the injection of the plastic material. The rails must be polished again to remove burrs that could damage neighboring wires when they rub on the rail during weaving.

C'est à ces inconvénients qu'entend plus particulièrement remédier l'invention en proposant une lisse composite présentant une forte résistance aux efforts et un encombrement limité.It is these drawbacks that the invention more particularly intends to remedy by proposing a composite rail having a high resistance to forces and a limited space requirement.

Dans cet esprit, l'invention concerne une lisse de guidage d'un fil de chaîne pour un métier à tisser, la lisse s'étendant en longueur selon un axe longitudinal et étant formée par l'assemblage d'un corps de lisse comportant au moins un brin et d'un maillon incluant un oeillet de passage du fil de chaîne, et définissant un plan principal. Conformément à l'invention, une première pièce, parmi le brin et le maillon, est pourvue, avant assemblage, d'une partie d'extrémité, la deuxième pièce, parmi le brin et le maillon, est pourvue, avant assemblage, d'une cavité de réception de la partie d'extrémité ménagée au niveau d'une extrémité longitudinale de cette deuxième pièce et la cavité de réception est pourvue d'un fond et débouche sur l'extérieur de la deuxième pièce, selon un axe transversal perpendiculaire au plan principal.In this spirit, the invention relates to a guide web of a warp for a loom, the arm extending in length along a longitudinal axis and being formed by the assembly of a smooth body comprising at least one strand and a link including an eyelet for passing the warp thread, and defining a main plane. According to the invention, a first piece, among the strand and the link, is provided, before assembly, with an end portion, the second piece, among the strand and the link, is provided, before assembly, with a receiving cavity of the end portion formed at a longitudinal end of this second piece and the receiving cavity is provided with a bottom and opens outwardly of the second piece, along a transverse axis perpendicular to the main plan.

Grâce à l'invention, le recouvrement du maillon et du brin au niveau d'une cavité avec un fond et débouchant dans la direction transversale permet de ménager un assemblage dans un encombrement transversal minimal et de limiter l'encombrement de la lisse composite dans le métier à tisser, et donc l'impact de la lisse sur la densité de fils du métier à tisser.Thanks to the invention, the covering of the link and the strand at a cavity with a bottom and opening in the transverse direction makes it possible to arrange an assembly in a minimum transverse bulk and to limit the bulk of the composite rail in the loom, and therefore the impact of the smooth on the density of son of the loom.

Selon des aspects avantageux mais non obligatoires de l'invention, une telle lisse de guidage comprend une ou plusieurs des caractéristiques suivantes, prises selon toute combinaison techniquement admissible :

  • Au niveau longitudinal de la cavité de réception, la première pièce est en recouvrement de la deuxième pièce par un unique côté transversal de la première pièce.
  • A un même niveau selon l'axe longitudinal, la profondeur de la cavité de réception est supérieure ou égale à l'épaisseur de la partie reçue dans la cavité, ces deux grandeurs étant mesurées parallèlement à l'axe transversal.
  • La cavité de réception est délimitée, selon un axe qui est perpendiculaire aux axes longitudinal et transversal, par au moins une paroi latérale, alors que chaque paroi latérale présente une arête longitudinale externe arrondie et que chaque paroi latérale est biseautée en direction d'une extrémité libre de la deuxième pièce.
  • La cavité de réception est dépourvue de paroi latérale et le fond de la cavité de réception est formé par une portion finale avec extrémité libre de la deuxième pièce.
  • La cavité de réception est délimitée selon l'axe longitudinal par une partie biseautée en direction du fond de la cavité.
  • L'extrémité longitudinale de la deuxième pièce comprend une autre cavité, qui prolonge la cavité de réception dépourvue de paroi latérale, et dans laquelle est reçue une portion de la première pièce, l'autre cavité étant définie par au moins une paroi latérale et un fond selon l'axe transversal.
  • L'autre cavité est définie par deux parois latérales, un fond et un plafond.
  • La cavité présente une réduction progressive de largeur selon l'axe latéral alors que la largeur de l'extrémité libre de la pièce avec cavité est inférieure à la largeur de la pièce reçue dans la cavité au même niveau longitudinal, ces largeurs étant mesurées parallèlement à l'axe latéral.
  • La première pièce présente une zone de transition avec réduction progressive de largeur selon l'axe latéral disposée au niveau longitudinal de la cavité.
  • La pièce sur laquelle est ménagée la cavité est en matériau plastique, de préférence injecté.
  • La lisse comprend un maillon et deux brins, chaque brin étant pourvu, à une extrémité, d'au moins une cavité de réception d'une partie du maillon et, à l'autre extrémité, de moyens de raccordement à un élément d'un harnais Jacquard du métier ou à un cadre de lisses.
  • Au moins un logement ménagé sur le fond de la cavité de réception est disposé en vis-à-vis d'un logement ménagé sur la partie de la première pièce pour former un couple de logements alors qu'un organe d'assemblage de résine s'étend à travers le couple de logements dans une direction transversale à l'axe longitudinal pour assurer un assemblage entre le corps et le maillon.
  • Un assemblage entre le corps et le maillon est réalisé par clipsage, collage, soudage, écrasement plastique, vissage et/ou rivetage.
According to advantageous but non-mandatory aspects of the invention, such a guide rail comprises one or more of the following features, taken in any technically permissible combination:
  • At the longitudinal level of the receiving cavity, the first piece is in overlap of the second piece by a single transverse side of the first piece.
  • At the same level along the longitudinal axis, the depth of the receiving cavity is greater than or equal to the thickness of the portion received in the cavity, these two quantities being measured parallel to the transverse axis.
  • The receiving cavity is delimited, along an axis which is perpendicular to the longitudinal and transverse axes, by at least one side wall, while each side wall has a rounded outer longitudinal edge and each side wall is beveled towards one end. free of the second room.
  • The receiving cavity is devoid of side wall and the bottom of the receiving cavity is formed by a final portion with free end of the second piece.
  • The receiving cavity is delimited along the longitudinal axis by a beveled portion towards the bottom of the cavity.
  • The longitudinal end of the second piece comprises another cavity, which extends the receiving cavity devoid of side wall, and in which is received a portion of the first piece, the other cavity being defined by at least one side wall and a bottom along the transverse axis.
  • The other cavity is defined by two side walls, a bottom and a ceiling.
  • The cavity has a gradual reduction in width along the lateral axis while the width of the free end of the part with cavity is less than the width of the part received in the cavity at the same longitudinal level, these widths being measured parallel to the lateral axis.
  • The first piece has a transition zone with progressive reduction of width along the lateral axis disposed at the longitudinal level of the cavity.
  • The part on which the cavity is made is made of plastic material, preferably injected.
  • The beam comprises a link and two strands, each strand being provided, at one end, with at least one receiving cavity of a part of the link and at the other end with means of connection to an element of a Jacquard harness of the trade or a frame of smooth.
  • At least one housing formed on the bottom of the receiving cavity is disposed opposite a housing formed on the part of the first part to form a pair of housing while a resin assembly member s extends through the pair of housings in a direction transverse to the longitudinal axis to ensure an assembly between the body and the link.
  • An assembly between the body and the link is made by clipping, gluing, welding, plastic crushing, screwing and / or riveting.

L'invention concerne également un métier à tisser équipé de plusieurs lisses de guidage d'un fil de chaîne. Ce métier est caractérisé en ce qu'au moins une lisse de guidage est telle que mentionnée ci-dessus.The invention also relates to a loom equipped with several guide rails of a warp thread. This loom is characterized in that at least one guide rail is as mentioned above.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaîtront plus clairement à la lumière de la description qui vas suivre, donnée uniquement à titre d'exemple non limitatif et faite en référence aux dessins annexés, sur lesquels :

  • la figure 1 est une vue en élévation d'une lisse de guidage d'un fil de chaîne pour un métier à tisser de type Jacquard conforme à un premier mode de réalisation de l'invention ;
  • la figure 2 est une vue à plus grande échelle d'un maillon de la lisse à la figure 1 ;
  • la figure 3 est une vue en perspective et à plus grande échelle d'une extrémité d'un brin de la lisse de la figure 1, une cavité étant ouverte vers le haut de cette figure ;
  • la figure 4 est une vue en perspective et selon un autre angle de l'extrémité de la figure 3, la cavité étant tournée vers le bas de cette figure ;
  • la figure 5 est une vue partielle en perspective et à plus grande échelle d'une zone d'assemblage entre un brin et le maillon de la lisse à la figure 1 ;
  • la figure 6 est une vue analogue à la figure 5, selon un autre angle ;
  • la figure 7 est une vue à plus grande échelle du détail VII de la figure 1 ;
  • la figure 8 est une coupe, partielle et à plus grande échelle, selon le plan VIII-VIII de la figure 7, d'une zone d'assemblage entre un brin et le maillon ;
  • la figure 9 est une section à plus grande échelle selon le plan IX-IX à la figure 7 ;
  • la figure 10 est une section à plus grande échelle selon le plan X-X à la figure 7 ;
  • la figure 11 est une vue analogue à la figure 7 avant que la résine ne soit déposée à l'interface entre le maillon et le brin ;
  • la figure 12 est une vue en élévation d'un maillon appartenant à une lisse conforme à un deuxième mode de réalisation de l'invention ;
  • la figure 13 est une vue de côté suivant la flèche XIII du maillon de la figure 12 ;
  • la figure 14 est une vue en perspective et à plus grande échelle d'une extrémité d'un brin de la lisse conforme au deuxième mode de réalisation de l'invention, une cavité étant ouverte vers le haut de cette figure ;
  • la figure 15 est une vue en élévation d'une zone d'assemblage entre le brin et le maillon ;
  • la figure 16 est une vue de côté suivant la flèche XVI de la zone d'assemblage de la figure 15 ;
  • la figure 17 est une vue en perspective de la zone d'assemblage des figures 15 et 16, la cavité du brin étant tournée vers le bas de cette figure ;
  • les figures 18 à 24 sont des vues respectivement analogues aux figures 2 à 8, quoiqu'à plus petite échelle pour certaines, pour une lisse de guidage conforme à un troisième mode de réalisation de l'invention ; et
  • la figure 25 est une représentation schématique d'un métier à tisser de type Jacquard, conforme à l'invention et incorporant une des lisses représentées aux figures 1 à 24.
The invention will be better understood and other advantages thereof will appear more clearly in the light of the description which follows, given solely by way of nonlimiting example and with reference to the appended drawings, in which:
  • the figure 1 is an elevational view of a guidewire of a warp yarn for a Jacquard loom according to a first embodiment of the invention;
  • the figure 2 is a larger-scale view of a link from the smooth to the figure 1 ;
  • the figure 3 is a perspective view and on a larger scale of one end of a strand of the smooth of the figure 1 a cavity being open towards the top of this figure;
  • the figure 4 is a perspective view and at another angle from the end of the figure 3 the cavity being turned towards the bottom of this figure;
  • the figure 5 is a partial view in perspective and on a larger scale of an assembly zone between a strand and the link of the stringer at the figure 1 ;
  • the figure 6 is a view similar to the figure 5 according to another angle;
  • the figure 7 is a larger-scale view of detail VII of the figure 1 ;
  • the figure 8 is a section, partial and on a larger scale, according to plan VIII-VIII of the figure 7 , an assembly area between a strand and the link;
  • the figure 9 is a larger scale section according to plan IX-IX at the figure 7 ;
  • the figure 10 is a larger scale section according to plan XX at the figure 7 ;
  • the figure 11 is a view similar to the figure 7 before the resin is deposited at the interface between the link and the strand;
  • the figure 12 is an elevational view of a link belonging to a rail according to a second embodiment of the invention;
  • the figure 13 is a side view along arrow XIII of the link of the figure 12 ;
  • the figure 14 is a perspective view and on a larger scale of one end of a strand of the smooth according to the second embodiment of the invention, a cavity being open towards the top of this figure;
  • the figure 15 is an elevational view of an assembly zone between the strand and the link;
  • the figure 16 is a side view along arrow XVI of the assembly area of the figure 15 ;
  • the figure 17 is a perspective view of the assembly area of Figures 15 and 16 , the cavity of the strand being turned towards the bottom of this figure;
  • the Figures 18 to 24 are views respectively similar to Figures 2 to 8 , albeit on a smaller scale for some, for a guide rail according to a third embodiment of the invention; and
  • the figure 25 is a schematic representation of a Jacquard loom, in accordance with the invention and incorporating one of the slats represented in FIGS. Figures 1 to 24 .

Le métier à tisser M de type Jacquard représenté à la figure 24 est équipé d'une mécanique Jacquard 102 qui commande plusieurs crochets 104 dont une extrémité inférieure est associée à plusieurs arcades 106. Une extrémité inférieure 106a de chaque arcade 106 est reliée à une extrémité supérieure 1a d'une lisse de guidage 1 d'un fil de chaîne, chaque lisse 1 étant soumise à l'action d'un ressort de rappel 108 fixé à une poutre d'accrochage 110 par une tige 112, la poutre 110 étant fixée sur un bâti du métier M. Les éléments 106, 1, 108, 110 et 112 forment un harnais H du métier M.The Jacquard type loom M represented by figure 24 is equipped with a Jacquard mechanism 102 which controls several hooks 104, one end of which lower end is associated with several arches 106. A lower end 106a of each arch 106 is connected to an upper end 1a of a guide rail 1 of a warp, each arm 1 being subjected to the action of a spring 108 is attached to a latching beam 110 by a rod 112, the beam 110 being fixed on a frame of the trade M. The elements 106, 1, 108, 110 and 112 form a harness H of the trade M.

Les figures 1 à 8 montrent un premier mode de réalisation d'une lisse de guidage 1 d'un fil de chaîne pour un métier à tisser de type Jacquard.The Figures 1 to 8 show a first embodiment of a guidewire 1 of a warp yarn for a jacquard loom.

La lisse de guidage 1 s'étend en longueur selon un axe longitudinal X1 et comprend un corps de lisse 10 et un maillon 2. Le corps de lisse 10 comporte deux brins 4 distincts. On note Y1 et Z1 deux axes de la lisse 1, perpendiculaires à l'axe X1, l'axe Y1 correspondant à la largeur du maillon 2, alors que l'axe Z1 transversal correspond à son épaisseur. La lisse de guidage est formée par l'assemblage du corps de lisse 10 et du maillon 2.The guide rail 1 extends in length along a longitudinal axis X1 and comprises a smooth body 10 and a link 2. The smooth body 10 comprises two separate strands 4. Y1 and Z1 are two axes of the bar 1, perpendicular to the axis X1, the axis Y1 corresponding to the width of the link 2, while the transverse axis Z1 corresponds to its thickness. The guide rail is formed by assembling the rail body 10 and the link 2.

A chaque extrémité, le corps de lisse 10 présente des moyens de raccordement 11A ou 11 B à un élément du harnais H, précisément à un ressort 108 ou à une arcade 106. A une première extrémité du corps de lisse 10, les moyens de raccordement 11A comprennent un filetage externe 12 qui est destiné à être vissé dans un ressort 108. A une deuxième extrémité du corps de lisse 10, les moyens de raccordement 11B sont destinés à se raccorder à une arcade 106 du harnais Jacquard H. Les moyens 11B comprennent un embout 14 qui forme une ouverture 16 de passage et de coincement de l'arcade 106 et un tube 18 de connexion rigide, réalisé en matériau plastique ou en métal. Les moyens de raccordement 11B sont conformes à EP-B-1 741 815 . En variante, d'autres moyens de raccordement peuvent être prévus aux extrémités du corps de lisse 10.At each end, the smooth body 10 has connection means 11A or 11B to an element of the harness H, specifically to a spring 108 or to an arch 106. At a first end of the smooth body 10, the connection means 11A comprise an external thread 12 which is intended to be screwed into a spring 108. At a second end of the smooth body 10, the connection means 11B are intended to be connected to an arcade 106 of the Jacquard H harness. The means 11B comprise a tip 14 which forms an opening 16 for passage and jamming of the arch 106 and a tube 18 of rigid connection, made of plastic material or metal. The connection means 11B comply with EP-B-1 741 815 . Alternatively, other connection means may be provided at the ends of the smooth body 10.

Le maillon 2 est plan et s'étend en longueur selon un axe longitudinal X2. On note Y2 un axe latéral, perpendiculaire à l'axe X2. Le maillon 2 inclut une portion centrale 20 qui présente des arêtes latérales 21 arrondies par polissage. La portion centrale 20 est pourvue d'un orifice qui forme un oeillet 22 de passage d'un fil de chaîne, lequel oeillet 22 traverse le maillon 2 de part en part selon un axe transversal Z2, perpendiculaire aux axes X2 et Y2. Les axes X2, Y2 et Z2 sont concourants au centre de l'oeillet 22. L'oeillet 22 est de forme rectangulaire dans un plan principal P du maillon 2 qui contient les axes X2 et Y2. Le plan principal P correspond au plan médian des deux surfaces du maillon 2 d'aire maximale. Les figures 1 et 2 sont parallèles à ce plan principal P, lequel est visible à la figure 8.The link 2 is plane and extends in length along a longitudinal axis X2. Y2 is a lateral axis, perpendicular to the axis X2. The link 2 includes a central portion 20 which has lateral edges 21 rounded by polishing. The central portion 20 is provided with an orifice which forms an eyelet 22 for the passage of a warp thread, which eyelet 22 passes through the link 2 from one end to the other along a transverse axis Z2 perpendicular to the axes X2 and Y2. The axes X2, Y2 and Z2 are concurrent in the center of the eyelet 22. The eyelet 22 is of rectangular shape in a main plane P of the link 2 which contains the axes X2 and Y2. The main plane P corresponds to the median plane of the two surfaces of the link 2 of maximum area. The Figures 1 and 2 are parallel to this main plane P, which is visible at figure 8 .

En configuration assemblée de la lisse 1, les axes X2, Y2 et Z2 sont respectivement confondus avec les axes X1, Y1 et Z1 de la lisse 1.In the assembled configuration of the rail 1, the axes X2, Y2 and Z2 are respectively coincident with the axes X1, Y1 and Z1 of the rail 1.

Le maillon 2 est symétrique par rapport à un plan de symétrie PS qui contient les axes Y2 et Z2.The link 2 is symmetrical with respect to a plane of symmetry P S which contains the axes Y2 and Z2.

On note L22 la longueur de l'oeillet 22 mesurée parallèlement à l'axe longitudinal X2 et L20 la longueur de la portion centrale 20 du maillon 2 mesurée parallèlement à l'axe X2. Cette longueur L20 est supérieure ou égale à cinq fois la longueur L22. On note également ℓ22 la largeur de l'oeillet 22 mesurée parallèlement à l'axe latéral Y2. On note enfin ℓ20 la largeur de la portion centrale 20 du maillon 2 mesurée parallèlement à l'axe Y2. La largeur ℓ22 de l'oeillet 22 est supérieure à la moitié de la largeur ℓ20 de la portion centrale 20 du maillon 2 et elle est de préférence égale à 60 % de la largeur ℓ20.Note L22 the length of eyelet 22 measured parallel to the longitudinal axis X2 and L20 the length of the central portion 20 of the link 2 measured parallel to the axis X2. This length L20 is greater than or equal to five times the length L22. Note also ℓ22 the width of the eyelet 22 measured parallel to the lateral axis Y2. Finally, ℓ20 is the width of the central portion 20 of the link 2 measured parallel to the axis Y2. The width ℓ22 of the eyelet 22 is greater than half the width ℓ20 of the central portion 20 of the link 2 and is preferably equal to 60% of the width ℓ20.

La portion centrale 20 du maillon 2 est prolongée, avant assemblage de la lisse 1, de chaque côté selon l'axe longitudinal X2 par une patte 24. Les pattes 24 ont, selon l'axe Y2, une largeur ℓ24 réduite par rapport à la portion centrale 20. Chaque patte 24 présente une extrémité longitudinale libre 240 opposée à la partie centrale 20. La réduction en largeur selon l'axe Y2 est progressive, de la portion centrale 20 vers chaque patte 24. Chaque patte 24 forme une extrémité longitudinale du maillon 2.The central portion 20 of the link 2 is extended, before assembly of the rail 1, on each side along the longitudinal axis X2 by a tab 24. The tabs 24 have, along the axis Y2, a width ℓ24 reduced compared to the central portion 20. Each lug 24 has a free longitudinal end 240 opposite to the central portion 20. The reduction in width along the Y2 axis is progressive, from the central portion 20 to each lug 24. Each lug 24 forms a longitudinal end of the link 2.

Le plan principal P du maillon correspond au plan principal des extrémités longitudinales 24 du maillon 2.The main plane P of the link corresponds to the main plane of the longitudinal ends 24 of the link 2.

La portion centrale 20 présente, au voisinage de chaque patte 24, deux cames arrondies 23 qui assurent la jonction entre la partie de largeur ℓ20 de la portion centrale 20 et la patte 24 adjacente. On note 25 une zone de transition définie dans la portion centrale 20 au voisinage d'une patte 24 et bordée par des cames 23. Au sens de la présente invention, la zone de transition 25 forme une partie d'extrémité du maillon 2.The central portion 20 has, in the vicinity of each leg 24, two round cams 23 which provide the junction between the portion of width ℓ20 of the central portion 20 and the tab 24 adjacent. There is a transition zone defined in the central portion 20 in the vicinity of a tab 24 and bordered by cams 23. For the purposes of the present invention, the transition zone 25 forms an end portion of the link 2.

Le maillon 2 inclut un logement 26 au niveau de chaque zone de transition 25. Les logements 26 sont formés par des trous traversant le maillon 2 de part en part parallèlement à l'axe Z2 et ont une section circulaire dans le plan principal P. En variante, les logements ou trous 26 ont une section oblongue ou polygonale dans le plan principal P. Les logements 26 sont destinés à recevoir de la résine.The link 2 includes a housing 26 at each transition zone 25. The housings 26 are formed by holes passing through the link 2 from one side parallel to the axis Z2 and have a circular section in the main plane P. In Alternatively, the housings or holes 26 have an oblong or polygonal section in the main plane P. The housings 26 are intended to receive resin.

On note 27 les bords longitudinaux d'une patte 24. Chaque bord 27 est pourvu de deux encoches 28A et 28B décalées selon l'axe X2 et qui forment des logements de réception de résine, ainsi qu'il ressort des explications qui suivent.We note 27 the longitudinal edges of a tab 24. Each edge 27 is provided with two notches 28A and 28B offset along the axis X2 and which form resin receiving housings, as can be seen from the explanations that follow.

Les encoches 28A et 28B s'étendent sur toute l'épaisseur des pattes 24 selon la direction de l'axe Z2 et sont en forme de créneaux rectangulaires dans le plan principal P. Selon une variante, les encoches 28A et 28B du maillon 2 sont en forme de créneaux semi-circulaires dans le plan principal P. De chaque côté du maillon 2, le logement 26 et les encoches 28A et 28B sont décalés, selon l'axe longitudinal X2, les uns par rapport aux autres.The notches 28A and 28B extend over the entire thickness of the tabs 24 in the direction of the Z2 axis and are in the form of rectangular slots in the main plane P. According to one variant, the notches 28A and 28B of the link 2 are crenellated semicircularly in the main plane P. On each side of the link 2, the housing 26 and the notches 28A and 28B are offset, along the longitudinal axis X2, with respect to each other.

Le maillon 2 est en métal mono-épaisseur. Le maillon 2 est fabriqué par découpage d'une tôle et ses arêtes 21 sont reprises par polissage, afin de présenter des arrondis non-agressifs pour les fils. En variante, le maillon 2 est en polyamide ou en céramique.The link 2 is in mono-thickness metal. The link 2 is manufactured by cutting a sheet and its edges 21 are polished to provide roundings non-aggressive son. Alternatively, the link 2 is polyamide or ceramic.

On note e24 l'épaisseur des pattes 24, mesurée parallèlement à l'axe Z2.Note e24 the thickness of the tabs 24, measured parallel to the axis Z2.

On note respectivement X4, Y4 et Z4 un axe longitudinal et deux axes transversaux d'un brin 4. En configuration assemblée de la lisse 1, les axes X4, Y4 et Z4 sont respectivement confondus avec les axes X1, Y1 et Z1 de la lisse 1.X4, Y4 and Z4 respectively denotes a longitudinal axis and two transverse axes of a strand 4. In the assembled configuration of the stringer 1, the axes X4, Y4 and Z4 are respectively coincident with the axes X1, Y1 and Z1 of the stringer 1.

Chaque brin 4 comprend une tige 41 ayant une section ronde suivant un plan transversal PT perpendiculaire à l'axe longitudinal X4 et parallèle aux axes Y4 et Z4. La tige 41 s'étend en longueur entre une première extrémité longitudinale 42, sur laquelle sont ménagés les moyens de raccordement 11 A ou 11 B et une deuxième extrémité longitudinale 44 au niveau de laquelle est réalisé l'assemblage avec le maillon 2. Au niveau de l'extrémité 44, chaque brin 4 s'élargit selon l'axe latéral Y4 et s'amincit selon l'axe transversal Z4, en s'éloignant de la tige 41. En d'autres termes, chaque extrémité 44 a une section transverse qui s'aplatit en s'éloignant de la tige 41.Each strand 4 comprises a rod 41 having a round section along a transverse plane P T perpendicular to the longitudinal axis X4 and parallel to the axes Y4 and Z4. The rod 41 extends in length between a first longitudinal end 42, on which are provided the connection means 11 A or 11 B and a second longitudinal end 44 at which the assembly with the link 2 is made. end 44, each strand 4 widens along the lateral axis Y4 and thins along the transverse axis Z4, away from the rod 41. In other words, each end 44 has a section transverse which flattens away from the stem 41.

Au niveau de son extrémité aplatie 44, avant assemblage de la lisse 1, chaque brin 4 présente une cavité de réception 48, ménagée sur un unique côté transversal du brin 4, qui reçoit une patte 24 du maillon 2. Dans la configuration assemblée de la lisse 1, l'extrémité libre 240 est reçue dans la cavité de réception 48. En pratique, toute la patte 24 est reçue dans la cavité 48. La cavité de réception 48 débouche dans la direction de l'axe longitudinal X4 et dans la direction de l'axe transversal Z4. La cavité de réception 48 est délimitée latéralement dans la direction de l'axe Y4 par deux parois latérales 49. La cavité de réception 48 comporte un fond 51 qui la délimite selon l'axe transversal Z4. La cavité de réception 48 débouche sur l'extérieur du brin 4 selon l'axe longitudinal X4, en direction d'une extrémité libre 54 du brin 4, à l'opposé de l'extrémité 42, et selon l'axe transversal Z4, perpendiculairement au plan principal P, à l'opposé du fond 51.At its flattened end 44, before assembly of the rail 1, each strand 4 has a receiving cavity 48, formed on a single transverse side of the strand 4, which receives a lug 24 of the link 2. In the assembled configuration of the 1, the free end 240 is received in the receiving cavity 48. In practice, all the tab 24 is received in the cavity 48. The receiving cavity 48 opens in the direction of the longitudinal axis X4 and in the direction of the transverse axis Z4. The receiving cavity 48 is delimited laterally in the direction of the axis Y4 by two side walls 49. The receiving cavity 48 has a bottom 51 which delimits it along the transverse axis Z4. The receiving cavity 48 opens on the outside of the strand 4 along the longitudinal axis X4, towards a free end 54 of the strand 4, opposite the end 42, and along the transverse axis Z4, perpendicular to the main plane P, opposite the bottom 51.

Les parois latérales 49 sont arrondies, c'est-à-dire qu'elles présentent des arêtes longitudinales externes arrondies sur leur bord opposé à la cavité 48.The side walls 49 are rounded, that is to say that they have external longitudinal edges rounded on their edge opposite the cavity 48.

On note 482 l'extrémité de la cavité 48 par laquelle cette cavité débouche vers l'extérieur, selon l'axe X4. On note 484 l'extrémité de la cavité 48 opposée à l'extrémité 482, c'est-à-dire l'extrémité fermée de la cavité 48. Dans un plan contenant les axes X4 et Y4, l'extrémité 484 est semi-circulaire et on note r48 son rayon intérieur.482 is the end of the cavity 48 through which this cavity opens outward along the axis X4. 484 is the end of the cavity 48 opposite the end 482, that is to say the closed end of the cavity 48. In a plane containing the axes X4 and Y4, the end 484 is semicircular and r48 is noted its inner radius.

Le fond 51 de la cavité 48 est prolongé, au-delà de l'extrémité 482 et dans la direction de l'axe longitudinal X4 vers le maillon 2, par une portion finale 52 qui dépasse longitudinalement des parois latérales 49 et qui n'est pas elle-même pourvue de telles parois. La portion finale 52 présente une extrémité libre 54. La portion finale 52 s'amincit vers l'extrémité libre 54 en largeur selon l'axe latéral Y4 et également en épaisseur selon l'axe transversal Z4. En particulier, la portion finale 52 comporte deux bords 52A et 52B qui convergent vers l'axe X4 en se rapprochant de l'extrémité libre 54. Selon l'axe Z4, la portion finale 52 affleure au même niveau que le fond 51. Ainsi, la cavité de réception 48 débouche complètement sur l'extérieur du brin 4 selon l'axe longitudinal X4.The bottom 51 of the cavity 48 is extended, beyond the end 482 and in the direction of the longitudinal axis X4 towards the link 2, by a final portion 52 which protrudes longitudinally from the side walls 49 and which is not not itself provided with such walls. The final portion 52 has a free end 54. The final portion 52 tapers towards the free end 54 in width along the lateral axis Y4 and also in thickness along the transverse axis Z4. In particular, the final portion 52 has two edges 52A and 52B which converge towards the axis X4, approaching the free end 54. Along the axis Z4, the final portion 52 is flush with the bottom 51. , the receiving cavity 48 opens completely on the outside of the strand 4 along the longitudinal axis X4.

Les parois latérales 49 se prolongent chacune par un bord 50 biseauté en direction de la portion finale 52, les bords biseautés 50 réalisant la transition entre les parois latérales 49 et la portion finale 52. Chaque paroi latérale 49 comporte une surface intérieure 490 qui présente un état de surface rugueux et/ou strié obtenu directement lors de la fabrication du brin 4.The side walls 49 are each extended by a beveled edge 50 towards the final portion 52, the bevelled edges 50 making the transition between the side walls 49 and the final portion 52. Each side wall 49 has an inner surface 490 which has a rough and / or striated surface condition obtained directly during the manufacture of the strand 4.

Comme cela ressort plus particulièrement de la figure 8, le maillon 2 et le brin 4 se recouvrent respectivement par la patte 24 et la zone de transition 25 et par le fond 51 et la portion finale 52. Ainsi, le recouvrement entre les pièces 2 et 4 a lieu au niveau d'un unique côté transversal de chacune de ces pièces. En particulier, au niveau longitudinal de la cavité 48, c'est-à-dire le long de l'axe longitudinal X4, la pièce 2 est en recouvrement de la pièce 4 par un unique côté transversal de la pièce 2.As is more particularly apparent from the figure 8 , the link 2 and the strand 4 overlap respectively with the tab 24 and the transition zone 25 and by the bottom 51 and the final portion 52. Thus, the overlap between the parts 2 and 4 takes place at a single level. transverse side of each of these pieces. In particular, at the longitudinal level of the cavity 48, that is to say along the longitudinal axis X4, the part 2 is in overlap of the part 4 by a single transverse side of the part 2.

On note p48 la profondeur de la cavité de réception 48 mesurée parallèlement à l'axe transversal Z4 au niveau des parois latérales 49. La profondeur p48 varie le long de l'axe X4. En configuration assemblée de la lisse 1, à un même niveau longitudinal selon l'axe X1, la profondeur p48 est supérieure à l'épaisseur e24, de manière que, lorsque la patte 24 est reçue dans la cavité 48 du brin 4 avec la patte 24 en contact avec le fond 51, les parois latérales 49 dépassent au-delà de la patte 24 selon une direction parallèle aux axes Z2 et Z4. Ainsi la cavité 48 limite les contacts entre la patte 24 reçue dans la cavité 48 et les fils voisins de la lisse. Chaque cavité 48 est globalement complémentaire de la patte 24 qu'elle reçoit.The depth of the receiving cavity 48 measured parallel to the transverse axis Z4 at the side walls 49 is noted p48. The depth p48 varies along the axis X4. In the assembled configuration of the arm 1, at the same longitudinal level along the axis X1, the depth p48 is greater than the thickness e24, so that when the tab 24 is received in the cavity 48 of the strand 4 with the leg 24 in contact with the bottom 51, the side walls 49 protrude beyond the tab 24 in a direction parallel to the axes Z2 and Z4. Thus the cavity 48 limits the contacts between the tab 24 received in the cavity 48 and the neighboring son of the smooth. Each cavity 48 is generally complementary to the tab 24 that it receives.

Selon une variante non représentée, la profondeur p48 est égale à l'épaisseur e24.According to a variant not shown, the depth p48 is equal to the thickness e24.

Du côté de l'extrémité 44 opposé à la cavité de réception 48, et comme visible à la figure 4, deux rainures longitudinales 56A et 56B sont ménagées.On the side of the end 44 opposite to the receiving cavity 48, and as visible at the figure 4 two longitudinal grooves 56A and 56B are provided.

Sur l'extrémité 44 sont également ménagés trois logements 46A, 46B et 46C, qui sont formés par des trous traversant l'extrémité 44 de part en part parallèlement à l'axe transversal Z4. Les deux logements 46A et 46B traversent le fond 51 de la cavité de réception 48, tandis que le logement 46C traverse la portion finale 52 du brin 4. Les trois logements 46A, 46B et 46C sont décalés le long de l'axe longitudinal X4. Du côté de l'extrémité 44 opposé à la cavité de réception 48, les deux logements 46A et 46B débouchent dans la rainure longitudinale 56A et le logement 46C débouche dans la rainure longitudinale 56B.On the end 44 are also provided three housing 46A, 46B and 46C, which are formed by holes through the end 44 from side to side parallel to the transverse axis Z4. The two housings 46A and 46B pass through the bottom 51 of the receiving cavity 48, while the housing 46C passes through the final portion 52 of the strand 4. The three housings 46A, 46B and 46C are offset along the longitudinal axis X4. On the side of the end 44 opposite to the receiving cavity 48, the two housings 46A and 46B open into the longitudinal groove 56A and the housing 46C opens into the longitudinal groove 56B.

Chaque logement 46A, 46B et 46C a une section circulaire.Each housing 46A, 46B and 46C has a circular section.

En variante, les logements 46A, 46B et 46C sont des trous ayant une section oblongue ou polygonale.Alternatively, the housings 46A, 46B and 46C are holes having an oblong or polygonal section.

On note ℓ48 la largeur de la cavité 48 mesurée parallèlement à l'axe Y4, entre les parois latérales 49. La cavité 48 présente des variations de largeur ℓ48 progressives le long de l'axe X4. Le rayon r48 est inférieur à la moitié de la largeur ℓ48 maximale, de préférence entre 20 à 40% de la largeur ℓ48 maximale, ce qui crée une réduction progressive de largeur de la cavité 48 pour renforcer la durée de vie de la pièce avec cavité.The width of the cavity 48 measured parallel to the axis Y4 between the side walls 49 is noted La48. The cavity 48 has progressive variations in width ℓ48 along the axis X4. The radius r48 is less than half the maximum width ℓ48, preferably between 20 to 40% of the maximum width ℓ48, which creates a gradual reduction in the width of the cavity 48 to enhance the service life of the cavity part. .

Le brin 4 est en polyamide et est fabriqué par injection. Avantageusement, le brin 4 est renforcé de fibres, par exemple de fibres de verre ou de carbone. Les filetage externe 12 et embout 14 des moyens de raccordement 11A et 11B sont obtenus directement lors de l'injection des brins et sont donc monoblocs avec les tiges 41.The strand 4 is made of polyamide and is manufactured by injection. Advantageously, the strand 4 is reinforced with fibers, for example glass fibers or carbon fibers. The external threads 12 and end 14 of the connection means 11A and 11B are obtained directly during the injection of the strands and are thus integral with the rods 41.

En configuration montée de la lisse, c'est-à-dire lorsque le maillon 2 est assemblé à chaque brin 4 par engagement des pattes 24 dans les cavités 48, la zone de transition 25 du maillon 2 est disposée longitudinalement en recouvrement de la portion finale 52, si bien que, au niveau de la transition entre le maillon 2 et chaque brin 4, la portion centrale 20 du maillon 2 et le brin 4 sont en recouvrement l'un sur l'autre. La transition entre le maillon 2 et chaque brin 4 ne se produit pas brutalement au niveau des extrémités 240 et 44 de deux pièces mais, au contraire, elle a lieu alors que le maillon 2 et le brin 4 sont en recouvrement.In mounted configuration of the beam, that is to say when the link 2 is assembled at each strand 4 by engagement of the tabs 24 in the cavities 48, the transition zone 25 of the link 2 is arranged longitudinally in overlap of the portion final 52, so that at the transition between the link 2 and each strand 4, the central portion 20 of the link 2 and the strand 4 are overlapping one on the other. The transition between the link 2 and each strand 4 does not occur abruptly at the ends 240 and 44 of two parts but, instead, it takes place while the link 2 and the strand 4 are overlapping.

On note ℓ54 la largeur de l'extrémité libre 54 de la portion finale 52 mesurée parallèlement à l'axe latéral Y4. On note également ℓ23 la largeur du maillon 2 entre les cames arrondies 23, cette largeur ℓ23 étant mesurée parallèlement à l'axe Y2 et le long de l'axe X2 au même niveau longitudinal que l'extrémité libre 54 lorsque la lisse est assemblée. La largeur ℓ54 est inférieure à la largeur ℓ23. Cette géométrie limite les risques d'accrochage des fils en frottement contre la lisse 1.The width of the free end 54 of the final portion 52 measured parallel to the lateral axis Y4 is denoted by ℓ54. Note also ℓ23 the width of the link 2 between the rounded cams 23, this width ℓ23 being measured parallel to the axis Y2 and along the axis X2 at the same longitudinal level as the free end 54 when the bar is assembled. The width ℓ54 is smaller than the width ℓ23. This geometry limits the risk of hooking of the wires in friction against the rail 1.

Le maillon 2 et chaque brin 4 se recouvrent respectivement selon la direction longitudinale X1, de manière à ce que les logements 46A et 46B soient respectivement en vis-à-vis selon l'axe Z1, avec les encoches 28A et 28B et de manière à ce que le logement 46C soit en vis-à-vis selon l'axe Z1 avec le logement 26. Les logements 26, 28A et 28B du maillon 2 et les logements 46A, 46B et 46C du brin 4 forment alors cinq couples de logements.The link 2 and each strand 4 overlap respectively in the longitudinal direction X1, so that the housings 46A and 46B are respectively vis-à-vis along the axis Z1, with the notches 28A and 28B and so as to the housing 46C is vis-à-vis along the axis Z1 with the housing 26. The housing 26, 28A and 28B of the link 2 and the housing 46A, 46B and 46C of the strand 4 then form five pairs of housing.

Au niveau de chaque patte 24, ces cinq couples de logements sont identifiés avec les références 31, 32, 33, 34 et 35 à la figure 11. Le couple de logements 31 est formé par le logement 46A et par l'encoche 28A située au-dessus de l'axe X1 sur cette figure et qui est la plus proche de l'extrémité libre 240. Le couple de logements 32 est formé par le logement 46A et par l'encoche 28A située au-dessous de l'axe X1 sur cette figure et qui est la plus proche de l'extrémité libre 240. Les couples 33 et 34 sont respectivement formés par le logement 46B et les encoches 28B disposées respectivement au-dessus et au-dessous de l'axe X1 et qui sont le plus éloignées de l'extrémité libre 240. Le couple 35 est formé par les logements 46C et 26.At each leg 24, these five pairs of housings are identified with the references 31, 32, 33, 34 and 35 at the figure 11 . The housing pair 31 is formed by the housing 46A and the notch 28A located above the axis X1 in this figure and which is the closest to the free end 240. The housing pair 32 is formed by the housing 46A and the notch 28A located below the axis X1 in this figure and which is closest to the free end 240. The couples 33 and 34 are respectively formed by the housing 46B and the notches 28B disposed respectively above and below the axis X1 and furthest from the free end 240. The pair 35 is formed by the housings 46C and 26.

Lors de la fabrication de la lisse 1, le maillon 2 pourvu de ses deux pattes 24 est mis en engagement avec le brin 4 pourvu de ses deux cavités de réception 48. Précisément, les deux brins 4 sont posés sur une surface d'appui plane horizontale, les cavités 48 étant ouvertes sur le dessus, c'est-à-dire débouchantes sur un même côté selon l'axe Z1. Le brin 4, qui est destiné à être lié à une arcade, est muni de son tube de connexion 18 préalablement à l'assemblage avec le maillon 2. Le maillon 2 est ensuite mis en place sur les deux brins 4, avec ses pattes 24 engagées dans chacune des cavités 48, en contact avec les fonds 51 des cavités 48.During the manufacture of the rail 1, the link 2 provided with its two legs 24 is engaged with the strand 4 provided with its two receiving cavities 48. Precisely, the two strands 4 are placed on a flat bearing surface horizontal, the cavities 48 being open on the top, that is to say open on the same side along the axis Z1. The strand 4, which is intended to be linked to an arch, is provided with its connection tube 18 prior to assembly with the link 2. The link 2 is then placed on the two strands 4, with its legs 24 engaged in each of the cavities 48, in contact with the bottoms 51 of the cavities 48.

Une quantité contrôlée de résine époxyde est alors déposée dans chaque couple de logements 31 à 35. En variante, la résine est une résine acrylique. Cette résine est déposée dans chaque couple de logements lorsqu'elle est encore liquide et se répand sous l'effet de la gravité de telle sorte qu'elle remplit chaque couple de logements. L'excèdent de résine se répartit dans les rainures 56A et 56B et dans la cavité de réception 48. Enfin, la résine est durcie par chauffage sous une température qui dépend de sa composition. En variante, la résine durcit à température ambiante ou sous rayonnement ultra-violet ou LED. La résine se solidifie dans les couples de logements. La résine solidifiée forme alors des organes d'assemblage 61, 62, 63, 64 et 65 en forme de rivets qui s'étendent chacun à travers le maillon et le brin selon l'axe transversal Z1.A controlled amount of epoxy resin is then deposited in each housing pair 31 to 35. Alternatively, the resin is an acrylic resin. This resin is deposited in each pair of housing when it is still liquid and spreads under the effect of gravity so that it fills each pair of housing. The excess of resin is distributed in the grooves 56A and 56B and in the receiving cavity 48. Finally, the resin is cured by heating at a temperature that depends on its composition. Alternatively, the resin cures at room temperature or under ultraviolet radiation or LED. The resin solidifies in the housing pairs. The solidified resin then forms connecting members 61, 62, 63, 64 and 65 in the form of rivets which each extend through the link and the strand along the transverse axis Z1.

La résine est donc déposée dans la cavité 48 dans chaque logement 26, 28A, 28B du maillon 2 depuis le dessus de la lisse et se répand sous l'effet de la gravité et par capillarité jusque dans les logements 46A, 46B, 46C du brin 4 et dans les rainures 56A et 56B.The resin is thus deposited in the cavity 48 in each housing 26, 28A, 28B of the link 2 from the top of the rail and spreads under the effect of gravity and by capillarity into the housings 46A, 46B, 46C of the strand 4 and in the grooves 56A and 56B.

Pour i compris entre 1 et 5, chaque organe d'assemblage 6i est sans jeu dans le couple de logements 3i. Chaque rivet 6i comporte un corps 6A qui est situé au niveau du couple de logements 3i. Chaque rivet 6i comporte également une tête 6B, de chaque côté du couple de logements 3i. Les têtes 6B sont formées de la résine en excèdent qui déborde sur l'extrémité 44 dans les rainures 56A et 56B et sur la patte 24 reçue dans la cavité de réception 48.For i between 1 and 5, each assembly member 6i is without play in the housing pair 3i. Each rivet 6i has a body 6A which is located at the housing pair 3i. Each rivet 6i also has a head 6B, on each side of the housing pair 3i. The heads 6B are formed of the excess resin which overflows on the end 44 in the grooves 56A and 56B and on the tab 24 received in the receiving cavity 48.

Comme cela ressort plus particulièrement de la figure 10 et dans la mesure où le logement 46A est commun aux couples de logements 31 et 32, les rivets 61 et 62 sont monoblocs. Il en va de même pour le logement 46B, les couples 33 et 34 et les rivets 63 et 64.As is more particularly apparent from the figure 10 and since the housing 46A is common to the housing pairs 31 and 32, the rivets 61 and 62 are monobloc. The same goes for the housing 46B, the pairs 33 and 34 and the rivets 63 and 64.

Ces rivets 6i assurent un assemblage entre l'extrémité finale 44 de chaque brin 4 et la patte 24 correspondante du maillon 2. Les rivets d'assemblage 6i agissent comme des obstacles disposés entre le brin 4 et le maillon 2 et empêchent un mouvement relatif entre le maillon 2 et le brin 4 dans les deux directions selon l'axe longitudinal X1 ainsi que dans les deux directions de l'axe latéral Y1. Les têtes 6B des rivets 6i empêchent le maillon 2 et le brin 4 de s'écarter dans la direction transversale Z1. Les rivets 6i bloquent le mouvement relatif des maillon 2 et brin 4 autour de l'axe X1, de l'axe Y1 et de l'axe Z1.These rivets 6i ensure an assembly between the end end 44 of each strand 4 and the corresponding tab 24 of the link 2. The assembly rivets 6i act as obstacles disposed between the strand 4 and the link 2 and prevent a relative movement between the link 2 and the strand 4 in both directions along the longitudinal axis X1 and in both directions of the lateral axis Y1. The heads 6B of the rivets 6i prevent the link 2 and the strand 4 from moving in the transverse direction Z1. The rivets 6i block the relative movement of the link 2 and strand 4 around the axis X1, the axis Y1 and the axis Z1.

Les rivets 6i ne sollicitent pas le maillon 2 ni les brins 4 lors de leur mise en place et du durcissement de la résine. De plus, lors de son dépôt, la résine peut s'étendre entre plusieurs couples de logements, parallèlement aux axes longitudinal X1 et latéral Y1. La résine forme alors des ponts qui relient les têtes 6B de certains des rivets 6i entre eux. Dans ce cas, la force de blocage mécanique est améliorée.The rivets 6i do not solicit the link 2 or the strands 4 during their establishment and the hardening of the resin. In addition, during its deposition, the resin may extend between several housing pairs, parallel to the longitudinal axes X1 and lateral Y1. The resin then forms bridges which connect the heads 6B of some of the rivets 6i with each other. In this case, the mechanical blocking force is improved.

A cet égard, les rainures 56A et 56B peuvent, en variante, être communicantes pour permettre la création d'un pont entre les rivets 63, 64 d'une part, et 65, d'autre part.In this respect, the grooves 56A and 56B may alternatively be communicating to allow the creation of a bridge between the rivets 63, 64 on the one hand, and 65, on the other hand.

Les organes d'assemblage 6i, en particulier les corps de rivet 6A, les têtes de rivets 6B et les ponts éventuels, restent contenus dans le volume intérieur de la cavité de réception 48 et dans le volume des rainures 56A et 56B sur le côté opposé. La cavité 48 et les rainure 56A et 56B protègent alors les fils voisins des frottements avec les rivets 6i.The fasteners 6i, in particular the rivet bodies 6A, the rivet heads 6B and any bridges, remain contained in the interior volume of the receiving cavity 48 and in the volume of the grooves 56A and 56B on the opposite side. . The cavity 48 and the grooves 56A and 56B then protect the neighboring wires from friction with the rivets 6i.

Comme les logements accueillant la résine traversent le maillon 2 et les brins 4 selon la direction de l'axe transversal Z1, il est possible de contrôler la bonne mise en place du maillon 2 par rapport à chaque brin 4 et également la bonne mise en place de la résine dans les couples de logements 3i pour la formation des rivets 6i homogènes et avec des sections maîtrisées.Since the housing accommodating the resin passes through the link 2 and the strands 4 in the direction of the transverse axis Z1, it is possible to control the good implementation of the link 2 with respect to each strand 4 and also the proper implementation resin in housing pairs 3i for the formation of rivets 6i homogeneous and with controlled sections.

Grâce à la cavité de réception 48 débouchant dans une direction perpendiculaire au plan principal P, il est possible de limiter l'encombrement de la lisse dans les directions Y1 et Z1 et donc de limiter l'impact de la lisse sur la densité de fils du métier à tisser.Thanks to the receiving cavity 48 opening in a direction perpendicular to the main plane P, it is possible to limit the overall size of the rail in the directions Y1 and Z1 and thus to limit the impact of the rail on the wire density of the rail. loom.

Selon une variante non représentée aux figures, la cavité de réception 48 est ménagée dans le maillon 2 et l'extrémité 44 du brin 4 est de largeur réduite et reçue dans cette cavité 48. Le brin 4 et le maillon 2 sont en recouvrement et forment les couples de logements 3i.According to a variant not shown in the figures, the receiving cavity 48 is formed in the link 2 and the end 44 of the strand 4 is of reduced width and received in this cavity 48. The strand 4 and the link 2 are in overlap and form couples of housing 3i.

Les figures 12 à 17 montrent un deuxième mode de réalisation d'une lisse de guidage 1001 d'un fil de chaîne d'un métier à tisser de type Jacquard. Les éléments du deuxième mode de réalisation portent les mêmes références que ceux du premier mode de réalisation augmentées de 1000. Dans la suite, on ne décrit pas en détail les éléments du deuxième mode de réalisation qui sont similaires à ceux du premier mode de réalisation.The Figures 12 to 17 show a second embodiment of a guide web 1001 of a warp of a Jacquard loom. The elements of the second embodiment bear the same references as those of the first embodiment increased by 1000. In the following, the elements of the second embodiment which are similar to those of the first embodiment are not described in detail.

Dans le deuxième mode de réalisation, le maillon en acier 1002 est symétrique par rapport au plan de symétrie PS ; il comporte une portion centrale 1020 et deux pattes 1024. Un plan principal P du maillon 1002 correspond au plan médian des deux surfaces 1020A et 1020B d'aire maximale. Chaque patte 1024 forme une extrémité longitudinale du maillon 1002 et présente, selon la direction de l'axe transversale Z1, une réduction d'épaisseur vers son extrémité libre 1240. Cette réduction est obtenue par un écrasement localisé du maillon 1002, ce que montre la partie de transition 1242.In the second embodiment, the steel link 1002 is symmetrical with respect to the plane of symmetry P S ; it comprises a central portion 1020 and two lugs 1024. A main plane P of the link 1002 corresponds to the median plane of the two surfaces 1020A and 1020B of maximum area. Each tab 1024 forms a longitudinal end of the link 1002 and has, in the direction of the transverse axis Z1, a thickness reduction towards its free end 1240. This reduction is obtained by a localized crushing of the link 1002, which shows the transition part 1242.

On note e20 l'épaisseur de la portion centrale 1020 du maillon 2 mesurée parallèlement à l'axe transversal Z1 et on note également e24 l'épaisseur d'une patte 1024 du maillon 1002 mesurée parallèlement à l'axe transversal Z1, au-delà de la partie de transition 1242 par rapport à la portion centrale 1020. L'épaisseur e24 est inférieure à l'épaisseur e20. La partie de transition 1242 est en forme de V à fond plat avec deux côtés 1242A et 1242B et un fond central 1242C.We denote e20 the thickness of the central portion 1020 of the link 2 measured parallel to the transverse axis Z1 and also note e24 the thickness of a tab 1024 of the link 1002 measured parallel to the transverse axis Z1, beyond of the transition portion 1242 relative to the central portion 1020. The thickness e24 is less than the thickness e20. The transition portion 1242 is flat-bottomed V-shaped with two sides 1242A and 1242B and a central bottom 1242C.

Chaque patte 1024 présente également une partie cambrée 1244. La partie de transition 1242 et la partie cambrée 1244 délimitent ensemble une niche 1029. La partie cambrée 1244 est disposée longitudinalement le long de l'axe X1 entre la niche 1029 et l'extrémité libre 1240 du maillon 1002.Each leg 1024 also has a cambered portion 1244. The transition portion 1242 and the cambered portion 1244 together define a niche 1029. The cambered portion 1244 is disposed longitudinally along the axis X1 between the niche 1029 and the free end 1240 link 1002.

On note 1027 les bords longitudinaux de chaque patte 1024. Chaque bord 1027 présente une projection 1028 en saillie, par rapport au bord 1027, selon la direction de l'axe latéral Y1. Les projections 1028 sont disposées longitudinalement entre la partie cambrée 1244 et l'extrémité libre 1240 du maillon 1002.1027 are the longitudinal edges of each lug 1024. Each edge 1027 has a projecting projection 1028, with respect to the edge 1027, in the direction of the lateral axis Y1. The projections 1028 are arranged longitudinally between the cambered portion 1244 and the free end 1240 of the link 1002.

On note 1246 une portion intermédiaire de la patte 1024 définie, le long de l'axe XI, entre les parties 1242 et 1244. La partie cambrée 1244 est respectivement déviée de manière inclinée, par rapport à la partie intermédiaire 1246 et à une portion plane qui définit l'extrémité libre 1240, au niveau longitudinal de deux droites D22 et D24 parallèles à l'axe Y1.1246 is an intermediate portion of the tab 1024 defined along the axis XI between the parts 1242 and 1244. The arched portion 1244 is respectively deflected in an inclined manner, with respect to the intermediate portion 1246 and a flat portion which defines the free end 1240, at the longitudinal level of two straight lines D22 and D24 parallel to the axis Y1.

Ainsi, la partie 1242 est cambrée transversalement au plan principal P, comme représenté par la flèche F2 à la figure 13.Thus, the portion 1242 is arched transversely to the main plane P, as represented by the arrow F2 at the figure 13 .

Le corps de lisse 1010 comporte deux brins 1004 distincts. Chaque brin 1004 comporte, au niveau de son extrémité 1044, une cavité de réception 1048, ménagée sur un unique côté transversal du brin 1004, débouchant sur l'extérieur du brin 1004 selon l'axe transversal Z1 perpendiculaire au plan principal P du maillon. La cavité 1048 a un fond 1051 qui la délimite selon l'axe transversal Z1 dans lequel débouche un logement traversant 1046. En particulier, le logement 1046 permet de former deux encoches latérales 1049A sur l'intérieur des parois latérales 1049 de la cavité 48. La portion finale 1052 de chaque brin 1004 se termine par une extrémité libre 1054. La portion finale 1052 est surélevée par rapport au fond 1051. Elle limite le débouché de la cavité 1048 selon l'axe X1.The smooth body 1010 has two separate strands 1004. Each strand 1004 comprises, at its end 1044, a receiving cavity 1048, formed on a single transverse side of the strand 1004, opening on the outside of the strand 1004 along the transverse axis Z1 perpendicular to the main plane P of the link. The cavity 1048 has a bottom 1051 which delimits it along the transverse axis Z1 into which a through housing 1046 opens. In particular, the housing 1046 makes it possible to form two lateral notches 1049A on the inside of the side walls 1049 of the cavity 48. The final portion 1052 of each strand 1004 ends with a free end 1054. The final portion 1052 is raised relative to the bottom 1051. It limits the outlet of the cavity 1048 along the axis X1.

Par ailleurs, une cavité distale 1048' est ménagée en regard de la portion 1052, sur un unique côté transversal du brin 1004, cette cavité 1048' étant définie par le dièdre formé par la face de la portion finale 1052 visible à la figure 14 et par le demi-plan des bords biseautés 1050 des parois 1049 qui rejoignent cette face, de part et d'autre de l'embouchure de la cavité 1048. Le fond de la cavité distale 1048' dans la direction transversale Z1 est formé par la portion finale 1052. La cavité 1048' est dépourvue de paroi latérale, c'est-à-dire qu'elle n'est pas délimitée par des parois matérielles selon l'axe latéral Y1.Furthermore, a distal cavity 1048 'is formed opposite the portion 1052, on a single transverse side of the strand 1004, this cavity 1048' being defined by the dihedron formed by the face of the final portion 1052 visible at the figure 14 and by the half-plane of the bevelled edges 1050 of the walls 1049 which join this face, on either side of the mouth of the cavity 1048. The bottom of the distal cavity 1048 'in the transverse direction Z1 is formed by the final portion 1052. The cavity 1048 'is devoid of side wall, that is to say that it is not delimited by material walls along the lateral axis Y1.

Dans la configuration assemblée de la lisse 1001, chaque patte 1024, avec son extrémité libre 1240, est reçue dans la cavité de réception 1048 ménagée sur chaque brin 1004 et la cavité distale 1048' reçoit la portion intermédiaire 1246 de la patte 1024.In the assembled configuration of the rail 1001, each lug 1024, with its free end 1240, is received in the receiving cavity 1048 provided on each strand 1004 and the distal cavity 1048 'receives the intermediate portion 1246 of the lug 1024.

Les cavités de réception 1048 des deux brins de la lisse 1001 débouchent du même côté selon l'axe Z1. De plus, chaque portion finale 1052, avec son extrémité libre 1054, est reçue dans la niche 1029 du maillon 1002. La niche 1029 donc constitue également une cavité de réception pour l'extrémité longitudinale du brin 1004 formée par la portion finale 1052. Le fond 1251 de cette cavité 1029 est constitué par la face de la portion intermédiaire 1246 tournée vers la partie de transition 1242. Les bord 1242A et 1242B de la partie de transition 1242 coopèrent à jeu latéral réduit avec les bords 1052A et 1052B de la portion finale 1052 et constituent ainsi des parois latérales pour la niche ou cavité 1029.The receiving cavities 1048 of the two strands of the arm 1001 open on the same side along the axis Z1. In addition, each end portion 1052, with its free end 1054, is received in the niche 1029 of the link 1002. The niche 1029 thus also constitutes a receiving cavity for the longitudinal end of the strand 1004 formed by the final portion 1052. bottom 1251 of this cavity 1029 is constituted by the face of the intermediate portion 1246 facing the transition portion 1242. The edges 1242A and 1242B of the transition portion 1242 cooperate with reduced lateral clearance with the edges 1052A and 1052B of the final portion 1052 and thus constitute sidewalls for the recess or cavity 1029.

Comme cela ressort plus particulièrement de la figure 16, le maillon 1002 et le brin 1004 se recouvrent respectivement par le fond 1251 de la patte 1024 et par la portion finale 1052. Ainsi, le recouvrement entre les pièces 1002 et 1004 a lieu au niveau d'un unique côté transversal de chacune de ces pièces1002 et 1004. En particulier, au niveau longitudinal de la cavité 1048', la pièce 1002 est en recouvrement de la pièce 1004 par un unique côté transversal de la pièce 1002.As is more particularly apparent from the figure 16 , the link 1002 and the strand 1004 overlap respectively with the bottom 1251 of the lug 1024 and the final portion 1052. Thus, the overlap between the pieces 1002 and 1004 takes place at a single transverse side of each of these In particular, at the longitudinal level of the cavity 1048 ', the part 1002 is in overlap of the part 1004 by a single transverse side of the part 1002.

Ainsi, l'assemblage entre une patte 1024 du maillon 1002 et une extrémité 1044 d'un brin 1004 a lieu dans un encombrement minimal et en optimisant les transitions entre maillon 1002 et brin 1004. En outre, l'extrémité libre 1054 de la portion 1052 ne risque pas d'accrocher des fils adjacents à la lisse 1001 car cette extrémité libre 1054 est reçue dans la niche 1029, au niveau des deux parois latérales formant la partie de transition 1242.Thus, the assembly between a tab 1024 of the link 1002 and an end 1044 of a strand 1004 takes place in a minimal space and optimizing the transitions between link 1002 and strand 1004. In addition, the free end 1054 of the portion 1052 is not likely to hang wires adjacent to the rail 1001 because this free end 1054 is received in the niche 1029, at the two side walls forming the transition portion 1242.

Lors de l'assemblage, le maillon 1002 et chaque brin 1004 se recouvrent selon la direction longitudinale X1, de manière à ce que le logement 1046 soit respectivement disposés, le long de l'axe X1, au niveau des projections 1028. Le logement 1046 du brin 4 et les projections 1028 du maillon 1002 forment alors un couple de logements.During assembly, the link 1002 and each strand 1004 overlap in the longitudinal direction X1, so that the housing 1046 is respectively disposed along the axis X1, at the projections 1028. The housing 1046 of the strand 4 and the projections 1028 of the link 1002 then form a pair of housings.

L'assemblage entre le brin 1004 et le maillon 1002 est réalisé par clipsage, par engagement du maillon 1002 pourvu de ses deux pattes 1024 avec les deux brins 1004 pourvus chacun d'une cavité de réception 1048 et d'une cavité distale 1048'. La patte 1024 est mise en place au-dessus de la cavité 1048 puis rapprochée du fond 1051 selon l'axe Z1. Comme la largeur des projections 1028 est supérieure à la largeur de la cavité 1048 prise en dehors du logement 1046, l'action de rapprochement déforme élastiquement les parois latérales 1049 de la cavité de réception 1048 qui s'écartent selon la direction Y1, de manière à permettre aux projections 1028 de se mettre en place dans les deux encoches 1049A. Lorsque les projections 1028 coopèrent avec le logement 1046, les parois 1049 reviennent élastiquement en position initiale. La coopération des projections 1028 avec le logement 1046 avec la patte 1024 en contact avec le fond 1051 et avec le fond 1251 de la patte 1024 au contact avec la portion finale 1052 bloque le maillon 1002 par rapport au brin 1004 dans les deux directions longitudinales, latérales et transversales ainsi qu'en rotation autour des axes X1, Y1 et Z1.The assembly between the strand 1004 and the link 1002 is made by clipping, by engagement of the link 1002 provided with its two legs 1024 with the two strands 1004 each provided with a receiving cavity 1048 and a distal cavity 1048 '. The tab 1024 is placed above the cavity 1048 and then brought closer to the bottom 1051 along the axis Z1. As the width of the projections 1028 is greater than the width of the cavity 1048 taken outside the housing 1046, the approaching action elastically deforms the side walls 1049 of the receiving cavity 1048 which deviate in the direction Y1, so that to allow the projections 1028 to be placed in the two notches 1049A. When the projections 1028 cooperate with the housing 1046, the walls 1049 return elastically in the initial position. The cooperation of the projections 1028 with the housing 1046 with the tab 1024 in contact with the bottom 1051 and with the bottom 1251 of the tab 1024 in contact with the final portion 1052 blocks the link 1002 with respect to the strand 1004 in the two longitudinal directions, lateral and transverse and in rotation about the axes X1, Y1 and Z1.

Les figures 18 à 24 montrent un troisième mode de réalisation d'une lisse de guidage 1 d'un fil de chaîne pour métier à tisser de type Jacquard. Dans la mesure où ce mode de réalisation est structurellement proche du premier mode de réalisation mentionné ci-dessus, les éléments communs à ces deux modes de réalisation portent les mêmes références. Dans la suite, on ne décrit pas en détail les éléments de ce troisième mode de réalisation qui sont similaires à ceux du premier mode de réalisation.The Figures 18 to 24 show a third embodiment of a guide rail 1 of a warp yarn for a Jacquard loom. Since this embodiment is structurally close to the first embodiment mentioned above, the elements common to these two embodiments carry the same references. In the following, the elements of this third embodiment which are similar to those of the first embodiment are not described in detail.

Le maillon 2 de ce mode de réalisation diffère de celui du premier mode de réalisation en ce que les bords 27 des pattes de largeur réduite 24 sont dépourvus d'encoche 28. En d'autres termes, ces bords 27 sont rectilignes. Par ailleurs, la portion centrale 20 de l'oeillet 22 est pourvue, dans chaque zone de transition 25 et au voisinage de chaque patte 24, de deux logements 26 qui sont alignés selon l'axe X2, qui traversent la portion centrale 20 de part en part et qui sont à section circulaire.The link 2 of this embodiment differs from that of the first embodiment in that the edges 27 of the reduced width tabs 24 are devoid of notch 28. In other words, these edges 27 are straight. Furthermore, the central portion 20 of the eyelet 22 is provided, in each transition zone 25 and in the vicinity of each leg 24, with two housings 26 which are aligned along the axis X 2, which pass through the central portion 20 from apart and which are circular section.

Par ailleurs, la deuxième extrémité 44 de chaque brin 4 comprend une cavité 48 qui est définie entre deux parois latérales 49, un fond 51 et un plafond 53 opposé au fond 51 et qui relie les parois latérales 49. En d'autres termes, en comparaison à la cavité 48 du premier mode de réalisation, la cavité 48 de ce mode de réalisation n'est pas débouchante à l'opposé du fond 51, le long d'un axe transversal Z4 défini comme dans le premier mode de réalisation.Furthermore, the second end 44 of each strand 4 comprises a cavity 48 which is defined between two side walls 49, a bottom 51 and a ceiling 53 opposite the bottom 51 and which connects the side walls 49. In other words, in compared to the cavity 48 of the first embodiment, the cavity 48 of this embodiment is not open opposite the bottom 51, along a transverse axis Z4 defined as in the first embodiment.

Par ailleurs, une portion finale 52 de l'extrémité 44 qui prolonge le fond 51 dans la direction de l'axe longitudinal X4 du brin 4, c'est-à-dire dans la direction de l'axe longitudinal X1 de la lisse 1 en configuration montée de celle-ci, vers l'oeillet 22 du maillon 2, est pourvue de deux logements 46C qui traversent cette portion finale 52 de part en part et qui sont également à section circulaire.Furthermore, a final portion 52 of the end 44 which extends the bottom 51 in the direction of the longitudinal axis X4 of the strand 4, that is to say in the direction of the longitudinal axis X1 of the stringer 1 in mounted configuration thereof, towards the eyelet 22 of the link 2, is provided with two housings 46C which pass through this final portion 52 from one side and which are also circular section.

En configuration assemblée de la lisse 1, la cavité 48 de chaque extrémité 44 reçoit une patte 24 du maillon 2. Dans cette configuration, les deux logements 26 ménagés à une extrémité de la portion centrale 20 sont respectivement alignés avec les deux logements 46C ménagés dans la portion finale 52 du brin 4 adjacent. Il est ainsi formé deux couples de logement 35 constitués chacun d'un logement 26 et d'un logement 46C.In assembled configuration of the rail 1, the cavity 48 of each end 44 receives a lug 24 of the link 2. In this configuration, the two housings 26 formed at one end of the central portion 20 are respectively aligned with the two housings 46C formed in the final portion 52 of the adjacent strand 4. There is thus formed two housing pairs 35 each consisting of a housing 26 and a housing 46C.

Comme il ressort plus particulièrement de la figure 19, la cavité 48 est ménagée dans une partie proximale de l'extrémité 44, c'est-à-dire dans une partie de cette extrémité plus proche du milieu du brin 4 que la portion finale 52. Par ailleurs, une cavité distale 48' est ménagée en regard de la portion finale 52, sur un unique côté transversal du brin 4, cette cavité étant définie par le dièdre formé par la face de la portion finale 52 visible à la figure 19 et par le demi-plan des bords biseautés 50 des parois 49 qui rejoignent cette face, de part et d'autre de l'embouchure de la cavité 48. Le fond de la cavité distale 48' dans la direction Z1 est formé par la portion finale 52. La cavité 48' est dépourvue de paroi latérale, c'est-à-dire qu'elle n'est pas délimitée par des parois matérielles selon l'axe latéral Y1. Cette cavité distale 48' reçoit, en configuration montée de la lisse 1, la zone de transition 25 de la portion centrale 20 du maillon 2 dans laquelle sont ménagés les logements 26.As is clear from the figure 19 , the cavity 48 is formed in a proximal portion of the end 44, that is to say in a portion of this end closer to the middle of the strand 4 than the final portion 52. Furthermore, a distal cavity 48 ' is arranged facing the final portion 52, on a single transverse side of the strand 4, this cavity being defined by the dihedral formed by the face of the final portion 52 visible to the figure 19 and by the half-plane of the beveled edges 50 of the walls 49 which join this face, on either side of the mouth of the cavity 48. The bottom of the distal cavity 48 'in the direction Z1 is formed by the portion final 52. The cavity 48 'is devoid of side wall, that is to say, it is not delimited by material walls along the lateral axis Y1. This distal cavity 48 'receives, in mounted configuration the smooth 1, the transition zone 25 of the central portion 20 of the link 2 in which are formed the housing 26.

On note p48' la profondeur de la cavité 48' mesurée parallèlement à l'axe transversal Z4 entre la portion finale 52 et l'extrémité des bords biseautés 50 la plus éloignée de la portion finale 52. La profondeur p48' est constante le long de l'axe X1. On note également e25 l'épaisseur de la portion de transition 25, mesurée parallèlement à l'axe Z2. En configuration assemblée de la lisse 1, à un même niveau longitudinal selon l'axe X1, la profondeur p48' est supérieure à l'épaisseur e25.It is noted p48 'the depth of the cavity 48' measured parallel to the transverse axis Z4 between the end portion 52 and the end of the bevelled edges 50 furthest from the final portion 52. The depth p48 'is constant along the X1 axis. Note also e25 the thickness of the transition portion 25, measured parallel to the axis Z2. In assembled configuration of the rail 1, at the same longitudinal level along the axis X1, the depth p48 'is greater than the thickness e25.

On note ℓ25 la largeur de la portion de transition 25 mesurée parallèlement à l'axe latéral Y1 de la lisse 1. On note ℓ54 la largeur de l'extrémité libre 54 de la portion finale 52 également mesurée parallèlement à l'axe Y1. La largeur ℓ54 est inférieure à la largeur ℓ25 au même niveau longitudinal. Par ailleurs, la portion finale 52 présente une réduction progressive de largeur selon l'axe latéral Y1, en direction de l'extrémité libre 54. La zone de transition 25 du maillon 2 est disposée le long de l'axe X1 en recouvrement de la portion finale 52 au niveau longitudinal de la cavité 48'. Cette zone de transition 25 présente une réduction progressive de largeur selon l'axe latéral Y1 en direction de l'extrémité libre 240 du maillon 2.We note ℓ25 the width of the transition portion 25 measured parallel to the lateral axis Y1 of the smooth 1. Note ℓ54 the width of the free end 54 of the final portion 52 also measured parallel to the axis Y1. The width ℓ54 is less than the width ℓ25 at the same longitudinal level. Furthermore, the final portion 52 has a progressive reduction in width along the lateral axis Y1, towards the free end 54. The transition zone 25 of the link 2 is arranged along the axis X1 in recovery of the final portion 52 at the longitudinal level of the cavity 48 '. This transition zone 25 has a progressive reduction in width along the lateral axis Y1 towards the free end 240 of the link 2.

Au cours de la fabrication de cette lisse 1, lorsque le maillon 2 pourvu de ses deux pattes 24 est mis en engagement avec les deux brins 4 pourvus chacun de sa cavité de réception 48 et de sa cavité distale 48', les couples de logement 35 sont formés, il est possible de couler dans chacun d'eux un organe d'assemblage de type rivet 65 en résine. Après solidification de la résine, ce rivet solidarise les pièces 2 et 4 au niveau de leurs extrémités en recouvrement.During the manufacture of this rail 1, when the link 2 provided with its two legs 24 is engaged with the two strands 4 each provided with its receiving cavity 48 and its distal cavity 48 ', the housing pairs 35 are formed, it is possible to flow in each of them a fastener type rivet 65 resin. After solidification of the resin, this rivet secures the parts 2 and 4 at their overlapping ends.

On remarque à la figure 22 que, du côté de la rainure 56 qui est ménagée dans la portion finale 52 à l'opposé de la cavité 48, les têtes des rivets 65 sont reliées par une semelle 69 qui remplit sensiblement toute cette rainure 56.We notice at the figure 22 that, on the side of the groove 56 which is formed in the final portion 52 opposite the cavity 48, the heads of the rivets 65 are connected by a sole 69 which substantially fills all this groove 56.

Comme cela ressort de la figure 24, les pièces 2 et 4 se recouvrent par la zone de transition 25 et par la portion finale 52. Ainsi le recouvrement entre les pièces 2 et 4 a lieu au niveau d'un unique côté transversal de chacune de ces pièces. En particulier, au niveau longitudinal de la cavité 48', c'est-à-dire le long de l'axe longitudinal X4, la pièce 2 est en recouvrement de la pièce 4 par un unique côté transversal de la pièce 2. Ainsi, dans la zone où sont formés les rivets 65, on peut accéder à chacune de ces pièces 2 et 4 par un côté transversal.As is apparent from the figure 24 , the parts 2 and 4 overlap by the transition zone 25 and the final portion 52. Thus the overlap between the parts 2 and 4 takes place at a single transverse side of each of these parts. In particular, at the longitudinal level of the cavity 48 ', that is to say along the longitudinal axis X4, the part 2 is in overlap of the part 4 by a single transverse side of the part 2. Thus, in the area where the rivets 65 are formed, each of these parts 2 and 4 can be accessed by a transverse side.

Selon un aspect avantageux de l'invention qui n'est pas représenté, le plafond 53 peut être percé d'une ouverture donnant accès à l'intérieur de la cavité 48, à proximité de l'extrémité fermée 484 de cette cavité, c'est-à-dire de son extrémité opposée à son embouchure. Ceci permet, notamment, de visualiser la patte 24 du maillon en place dans la cavité proximale 48.According to an advantageous aspect of the invention which is not shown, the ceiling 53 may be pierced with an opening giving access to the interior of the cavity 48, close to the closed end 484 of this cavity, that is to say its end opposite its mouth. This makes it possible, in particular, to visualize the tab 24 of the link in place in the proximal cavity 48.

Selon une première variante de ce troisième mode de réalisation qui n'est pas représentée, la cavité 48 est supprimée dans chaque brin 4, de même que la patte 24 à chaque extrémité de la portion centrale 20. Dans ce cas, le recouvrement entre les pièces 2 et 4 a lieu uniquement au niveau de la portion finale 52, par engagement de la zone de transition 25 de l'extrémité de la portion centrale 20 dans la cavité 48', avec un recouvrement d'un unique côté transversal de chacune des pièces 2 et 4.According to a first variant of this third embodiment which is not shown, the cavity 48 is removed in each strand 4, as well as the tab 24 at each end of the central portion 20. In this case, the overlap between the parts 2 and 4 takes place only at the level of the final portion 52, by engagement of the transition zone 25 of the end of the central portion 20 in the cavity 48 ', with a covering of a single transverse side of each of the rooms 2 and 4.

Selon une autre variante également non représentée de ce troisième mode de réalisation, des couples de logement comparables aux couples de logement 31 à 34 du premier mode de réalisation peuvent s'étendre au niveau de la cavité fermée 48. Dans ce cas, des logements de forme adaptée sont prévus dans les pattes 24 ainsi que dans le fond 51 et/ou dans le plafond 53 et/ou dans les parois latérales 49. Les logements des pattes 24 peuvent être des encoches, comme dans le premier mode de réalisation, ou des logements traversant à section circulaire, comme les logements 26 du troisième mode de réalisation.According to another variant, also not shown, of this third embodiment, housing torques comparable to the housing pairs 31 to 34 of the first embodiment may extend at the level of the closed cavity 48. In this case, housing units of adapted form are provided in the tabs 24 as well as in the bottom 51 and / or in the ceiling 53 and / or in the side walls 49. The housing of the tabs 24 may be notches, as in the first embodiment, or cross-sectional dwellings such as the housings 26 of the third embodiment.

Au sens de la présente invention, deux logements sont en vis-à-vis s'ils sont au moins partiellement en face l'un de l'autre et communiquent l'un avec l'autre avant la dépose de la résine. En particulier, lorsque deux logements sont en vis-à-vis selon une direction donnée, les projections des débouchés des logements du couple de logements tournés vers l'autre logement du couple de logements sur un plan perpendiculaire à la direction de vis-à-vis se recouvrent au moins partiellement.For the purposes of the present invention, two housings are in facing relation if they are at least partially opposite one another and communicate with each other before the resin is removed. In particular, when two housings are facing each other in a given direction, the projections of the housing outlets of the pair of dwellings facing the other housing of the couple of dwellings on a plane perpendicular to the direction of vis-à- screws overlap at least partially.

Le recouvrement du maillon 2 et du brin 4 sur un seul côté transversal permet de réaliser une jonction maillon/brin dans un encombrement transversal minimal. En effet, la première pièce ne s'étend pas de part et d'autre de la deuxième pièce dans la direction transversale. La jonction maillon/brin est réalisée avec des interfaces maillon/brin minimales et optimisées pour limiter la fragilisation des fils voisins en frottement contre la lisse. Les deux pièces, que sont le brin et le maillon, restent toutes deux accessibles pendant l'opération d'assemblage, ce qui permet de contrôler l'assemblage. De plus, le recours à une cavité débouchant perpendiculairement au plan principal du maillon permet de limiter l'encombrement de la lisse composite dans le métier à tisser, et donc l'impact de la lisse sur la densité de fils du métier à tisser.The overlap of the link 2 and the strand 4 on one transverse side allows for a link link / strand in a minimum transverse size. Indeed, the first piece does not extend on either side of the second piece in the transverse direction. The link / strand junction is made with minimal link / strand interfaces and optimized to limit the embrittlement of neighboring wires in friction against the stringer. The two pieces, the strand and the link, both remain accessible during the assembly operation, which makes it possible to control the assembly. In addition, the use of a cavity opening perpendicularly to the main plane of the link makes it possible to limit the bulk of the composite rail in the loom, and therefore the impact of the rail on the density of son of the loom.

Selon des variantes de l'invention non représentées sur les figures :

  • une cavité de réception est ménagée uniquement dans le maillon 2 ;
  • la profondeur p48 de la cavité de réception 48 est inférieure à l'épaisseur e24 de la patte 24 ;
  • la largeur ℓ48 de la cavité 48 est inférieure à la largeur ℓ24 de la patte 24 ;
  • l'assemblage entre le brin 4 et le maillon 2 est réalisé par collage ou par soudage du brin 4 et du maillon 2 engagés l'un avec l'autre ou par déformation de l'une des deux pièces 2 et 4 dans l'autre ou par écrasement plastique de l'une des deux pièces 2 et 4 autour de l'autre après engagement des deux pièces l'une avec l'autre ou par vissage de l'une des deux pièces 2 et 4 avec l'autre ;
  • le ou les brins du corps de lisse peut ou peuvent être en matériau plastique ou en acier. Le maillon peut être en acier, en céramique ou en plastique ;
  • en variante au premier mode de réalisation, la cavité peut être prévue avec un seul bord latéral.
According to variants of the invention not shown in the figures:
  • a receiving cavity is formed only in the link 2;
  • the depth p48 of the receiving cavity 48 is less than the thickness e24 of the tab 24;
  • the width ℓ48 of the cavity 48 is smaller than the width ℓ24 of the tab 24;
  • the assembly between the strand 4 and the link 2 is made by gluing or welding the strand 4 and the link 2 engaged with each other or by deformation of one of the two parts 2 and 4 in the other or by plastic crushing of one of the two parts 2 and 4 around each other after engagement of the two parts with each other or by screwing one of the two parts 2 and 4 with the other;
  • the strand (s) of the smooth body may or may be of plastic material or steel. The link may be steel, ceramic or plastic;
  • as an alternative to the first embodiment, the cavity may be provided with only one side edge.

Le métier M est représenté à la figure 25 avec des lisses 1 conformes au premier mode de réalisation. Il peut également être équipé de lisses 1001, 2001 et 1 des autres modes de réalisation.Trade M is represented at figure 25 with smoothers 1 according to the first embodiment. It can also be equipped with hinges 1001, 2001 and 1 of the other embodiments.

L'invention est décrite ci-dessus dans le cadre de son application sur un métier de type Jacquard. Elle est toutefois applicable aux lisses pour cadres et aux métiers a cadres.The invention is described above in the context of its application on a Jacquard type loom. However, it is applicable to frames and frames.

Les modes de réalisation et variantes envisagés ci-dessus peuvent être combinés entre eux pour générer de nouveaux modes de réalisation.The embodiments and alternatives contemplated above may be combined with one another to generate new embodiments.

Claims (15)

1. Lisse de guidage (1 ; 1001) d'un fil de chaîne pour un métier à tisser (M), la lisse s'étendant en longueur selon un axe longitudinal (X1) et étant formée par l'assemblage : - d'un corps de lisse (10 ; 1010) comportant au moins un brin (4 ; 1004), et - d'un maillon (2 ; 1002) incluant un oeillet (22) de passage du fil de chaîne, et définissant un plan principal (P), caractérisée en ce que - une première pièce (2 ; 1002 ; 1004), parmi le brin et le maillon, est pourvue, avant assemblage, d'une partie (24 ; 1024, 1052 ; 25) d'extrémité, - la deuxième pièce (4 ; 1002, 1004), parmi le brin et le maillon, est pourvue, avant assemblage, d'une cavité (48; 1029; 1048'; 48') de réception de la partie d'extrémité ménagée au niveau d'une extrémité longitudinale (44 ; 1002 ; 1004) de cette deuxième pièce, - la cavité de réception (48 ; 1029, 1048' ; 48') est pourvue d'un fond (51 ; 1251 ; 1052 ; 52) et débouche sur l'extérieur de la deuxième pièce, selon un axe transversal (Z1) perpendiculaire au plan principal (P). 1. A guide wire (1; 1001) of a warp yarn for a loom (M), the arm extending in length along a longitudinal axis (X1) and being formed by the assembly: - a smooth body (10; 1010) having at least one strand (4; 1004), and a link (2; 1002) including an eyelet (22) for passing the warp thread, and defining a main plane (P), characterized in that a first piece (2; 1002; 1004), between the strand and the link, is provided, before assembly, with an end portion (24; 1024; 1052; 25); the second piece (4; 1002, 1004), between the strand and the link, is provided, before assembly, with a cavity (48; 1029; 1048 ';48') for receiving the end portion provided at at one longitudinal end (44; 1002; 1004) of this second piece, the receiving cavity (48; 1029; 1048 ';48') is provided with a bottom (51; 1251; 1052; 52) and opens outwardly from the second part along a perpendicular transverse axis (Z1); at the main plane (P). 3. Lisse de guidage selon la revendication 1, caractérisée en ce que, au niveau longitudinal de la cavité de réception (48 ; 1029 ; 1048' ; 48'), la première pièce (2 ; 1002 ; 1004) est en recouvrement de la deuxième pièce (4 ; 1002 ; 1004) par un unique côté transversal de la première pièce (2 ; 1002). 3. A guide rail according to claim 1, characterized in that , at the longitudinal level of the receiving cavity (48; 1029; 1048 ';48'), the first piece (2; 1002; 1004) overlaps the second piece (4; 1002; 1004) by a single transverse side of the first piece (2; 1002). 3. Lisse de guidage selon la revendication 1 ou 2, caractérisée en ce que, à un même niveau selon l'axe longitudinal (X1), la profondeur (p48 ; p48') de la cavité de réception (48 ; 48') est supérieure ou égale à l'épaisseur (e24 ; e25) de la partie (24 ; 25) reçue dans la cavité, ces deux grandeurs étant mesurées parallèlement à l'axe transversal (Z1). 3. A guide rail according to claim 1 or 2, characterized in that , at the same level along the longitudinal axis (X1), the depth (p48; p48 ') of the receiving cavity (48; 48') is greater than or equal to the thickness (e24; e25) of the portion (24; 25) received in the cavity, these two quantities being measured parallel to the transverse axis (Z1). 4. Lisse de guidage selon l'une des revendications précédentes, caractérisée en ce que la cavité de réception (48; 1048) est délimitée, selon un axe (Y1) qui est perpendiculaire aux axes longitudinal (X1) et transversal (Z1), par au moins une paroi latérale (49; 1049), en ce que chaque paroi latérale présente une arête longitudinale externe arrondie et en ce que chaque paroi latérale est biseautée en direction d'une extrémité libre (54 ; 1054) de la deuxième pièce (4 ; 1004). 4. Guide rail according to one of the preceding claims, characterized in that the receiving cavity (48; 1048) is delimited, along an axis (Y1) which is perpendicular to the longitudinal (X1) and transverse (Z1) axes, by at least one side wall (49; 1049), in that each side wall has a longitudinal edge outer circumference and in that each side wall is bevelled towards a free end (54; 1054) of the second piece (4; 1004). 5. Lisse de guidage selon l'une des revendications 1 ou 2, caractérisée en ce que la cavité de réception (1048', 48') est dépourvue de paroi latérale et le fond de la cavité de réception (1048', 48') est formé par une portion finale (1052, 52) avec extrémité libre (1054, 54) de la deuxième pièce. 5. Guide rail according to one of claims 1 or 2, characterized in that the receiving cavity (1048 ', 48') has no side wall and the bottom of the receiving cavity (1048 ', 48') is formed by a final portion (1052, 52) with free end (1054, 54) of the second piece. 6. Lisse de guidage selon la revendication 5, caractérisée en ce que la cavité de réception (1048', 48') est délimitée selon l'axe longitudinal (X1) par une partie (50, 1050) biseautée en direction du fond (1052 ; 52) de la cavité (1048', 48'). 6. Guide rail according to claim 5, characterized in that the receiving cavity (1048 ', 48') is delimited along the longitudinal axis (X1) by a portion (50, 1050) bevelled towards the bottom (1052). 52) of the cavity (1048 ', 48'). 7. Lisse de guidage selon l'une des revendications 5 ou 6, caractérisée en ce que l'extrémité longitudinale (44) de la deuxième pièce (4) comprend une autre cavité (1048 ; 48), qui prolonge la cavité de réception (1048' ; 48') dépourvue de paroi latérale, et dans laquelle est reçue une portion (1024 ; 24) de la première pièce (1002 ; 2), l'autre cavité (1048 ; 48) étant définie par au moins une paroi latérale (1049 ; 49) et un fond (1051 ; 51) selon l'axe transversal (Z1). 7. Guide rail according to one of claims 5 or 6, characterized in that the longitudinal end (44) of the second part (4) comprises another cavity (1048; 48) which extends the receiving cavity ( 1048 ', 48') devoid of a side wall, and in which a portion (1024; 24) of the first piece (1002; 2) is received, the other cavity (1048; 48) being defined by at least one side wall (1049; 49) and a bottom (1051; 51) along the transverse axis (Z1). 8. Lisse de guidage selon la revendication 7, caractérisée en ce que l'autre cavité (48) est définie par deux parois latérales (49), un fond (51) et un plafond (53). 8. Guide rail according to claim 7, characterized in that the other cavity (48) is defined by two side walls (49), a bottom (51) and a ceiling (53). 9. Lisse de guidage selon l'une des revendications 5 à 8, caractérisée en ce que la cavité (48') présente une réduction progressive de largeur selon l'axe latéral (Y1), et en ce que la largeur (ℓ54) de l'extrémité libre (54) de la pièce (4) avec cavité (48') est inférieure à la largeur (ℓ23 ; ℓ25) de la pièce (2) reçue dans la cavité au même niveau longitudinal, ces largeurs étant mesurées parallèlement à l'axe latéral (Y1). 9. Guide rail according to one of claims 5 to 8, characterized in that the cavity (48 ') has a progressive reduction in width along the lateral axis (Y1), and in that the width (ℓ54) of the free end (54) of the part (4) with cavity (48 ') is smaller than the width (ℓ23; ℓ25) of the part (2) received in the cavity at the same longitudinal level, these widths being measured parallel to the lateral axis (Y1). 10. Lisse selon la revendication 9, caractérisée en ce que la première pièce présente une zone de transition (25) avec réduction progressive de largeur selon l'axe latéral (Y1) disposée au niveau longitudinal de la cavité (48'). 10. Smooth according to claim 9, characterized in that the first piece has a transition zone (25) with gradual reduction in width along the lateral axis (Y1) disposed at the longitudinal level of the cavity (48 '). 11. Lisse de guidage selon l'une des revendications précédentes, caractérisée en ce que la pièce (4; 1002, 1004) sur laquelle est ménagée la cavité (48; 1029, 1048'; 48') est en matériau plastique, de préférence injecté. 11. Guide rail according to one of the preceding claims, characterized in that the part (4; 1002, 1004) on which the cavity (48; 1029, 1048 ';48') is formed is made of plastic material, preferably injected. 12. Lisse de guidage selon l'une des revendications précédentes, caractérisée en ce que la lisse (1; 1001) comprend un maillon (2; 1002) et deux brins (4; 1004), chaque brin étant pourvu, à une extrémité (44 ; 1044), d'au moins une cavité de réception (48; 1048' ; 48') d'une partie (24; 1024) du maillon et, à l'autre extrémité (42), de moyens (11 A, 11 B) de raccordement à un élément (108, 106) d'un harnais Jacquard (H) du métier (M) ou à un cadre de lisses. 12. Guide rail according to one of the preceding claims, characterized in that the rail (1; 1001) comprises a link (2; 1002) and two strands (4; 1004), each strand being provided at one end ( 44; 1044), at least one receiving cavity (48; 1048 ';48') of a portion (24; 1024) of the link and at the other end (42) means (11A, 11 B) connecting to a member (108, 106) a Jacquard harness (H) of the trade (M) or to a heald frame. 13. Lisse de guidage selon l'une des revendications précédentes, caractérisée en ce qu'au moins un logement (46A, 46B ;46C) ménagé sur le fond (51; 52) de la cavité de réception (48; 48') est disposé en vis-à-vis d'un logement (28A, 28B ; 26) ménagé sur la partie (24 ; 25) de la première pièce (4) pour former un couple de logements (31, 32, 33, 34,; 35) et en ce qu'un organe d'assemblage (61, 62, 63, 64 ; 65) de résine s'étend à travers le couple de logements dans une direction transversale (Y1, Z1) à l'axe longitudinal (X1) pour assurer un assemblage entre le corps (10) et le maillon (2). 13. Straight guide according to one of the preceding claims, characterized in that at least one housing (46A, 46B; 46C) formed on the bottom (51; 52) of the receiving cavity (48; 48 ') is disposed opposite a housing (28A, 28B; 26) provided on the portion (24; 25) of the first piece (4) to form a housing pair (31, 32, 33, 34; 35) and in that a resin connecting member (61, 62, 63, 64; 65) extends through the housing pair in a transverse direction (Y1, Z1) to the longitudinal axis (X1 ) to ensure an assembly between the body (10) and the link (2). 14. Lisse de guidage selon l'une des revendications 1 à 12, caractérisée en ce qu'un assemblage entre le corps (1010,) et le maillon (1004) est réalisé par clipsage, collage, soudage, écrasement plastique, vissage et/ou rivetage. 14. Guide rail according to one of claims 1 to 12, characterized in that an assembly between the body (1010) and the link (1004) is made by clipping, gluing, welding, plastic crushing, screwing and / or riveting. 15. Métier à tisser (M) équipé des plusieurs lisses de guidage (1; 1001) d'un fil de chaîne caractérisé en ce que au moins une lisse (1; 1001) est selon l'une des revendications précédentes. 15. Loom (M) equipped with a plurality of guide rails (1; 1001) of a chain yarn characterized in that at least one rail (1; 1001) is according to one of the preceding claims.
EP15189888.9A 2014-10-16 2015-10-15 Heddle for weaving loom and loom provided with such a heddle Active EP3009545B1 (en)

Applications Claiming Priority (1)

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FR1459961A FR3027315B1 (en) 2014-10-16 2014-10-16 SMOOTH FOR WEAVING AND WORK EQUIPPED WITH SUCH A SMOOTH

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EP3009545A1 true EP3009545A1 (en) 2016-04-20
EP3009545B1 EP3009545B1 (en) 2018-12-05

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US (1) US9777410B2 (en)
EP (1) EP3009545B1 (en)
KR (1) KR102573810B1 (en)
CN (1) CN105568468B (en)
FR (1) FR3027315B1 (en)
PT (1) PT3009545T (en)
TR (1) TR201901136T4 (en)

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US2019822A (en) * 1934-07-24 1935-11-05 Steel Heddle Mfg Co Loom heddle and method of making the same
EP1741815B1 (en) 2005-07-06 2014-01-08 Staubli Lyon Vorrichtung zum Verbinden von Elemente einer Fachbildevorrichtung, Herstellungsverfahren der Vorrichtung und ein Verfahren zum Verbinden mittels der Vorrichtung
EP1989346A1 (en) 2006-02-27 2008-11-12 Michel Van de Wiele NV Heddle for a weaving machine, weaving machine provided with one or more of such heddles and method for to manufacture such a heddle
EP1908863A1 (en) * 2006-10-06 2008-04-09 Groz-Beckert KG Heddle for Jacquard loom
CN201228305Y (en) 2008-04-30 2009-04-29 胡金永 High abrasion-proof heddle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3054246A1 (en) * 2016-07-25 2018-01-26 Staubli Lyon SMOOTH FOR JACQUARD BUSINESS, ITS MANUFACTURING PROCESS, AND WEAVING COMPRISING SUCH A SMOOTH
EP3276058A1 (en) * 2016-07-25 2018-01-31 Staubli Lyon Heddle for jacquard loom, method of manufacturing the heddle, and weaving loom including such a heddle
CN107653543A (en) * 2016-07-25 2018-02-02 史陶比尔里昂公司 The method of heald, manufacture heald for jacquard loom and the loom including heald
US10260176B2 (en) 2016-07-25 2019-04-16 Staubli Lyon Heddle for Jacquard loom, method of manufacturing the heddle, and weaving loom including such a heddle
CN107653543B (en) * 2016-07-25 2021-08-10 史陶比尔里昂公司 Heddle for a jacquard loom, method for producing a heddle and loom comprising a heddle

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KR102573810B1 (en) 2023-09-01
CN105568468B (en) 2019-08-16
FR3027315A1 (en) 2016-04-22
US9777410B2 (en) 2017-10-03
EP3009545B1 (en) 2018-12-05
KR20160045028A (en) 2016-04-26
US20160108563A1 (en) 2016-04-21
FR3027315B1 (en) 2019-04-26
CN105568468A (en) 2016-05-11
PT3009545T (en) 2019-03-21
TR201901136T4 (en) 2019-02-21

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