EP4015687B1 - Fachbildungsmechanismus und webmaschine vom typ jacquardwebmaschine, die mit einem solchen mechanismus ausgestattet ist - Google Patents

Fachbildungsmechanismus und webmaschine vom typ jacquardwebmaschine, die mit einem solchen mechanismus ausgestattet ist Download PDF

Info

Publication number
EP4015687B1
EP4015687B1 EP21216581.5A EP21216581A EP4015687B1 EP 4015687 B1 EP4015687 B1 EP 4015687B1 EP 21216581 A EP21216581 A EP 21216581A EP 4015687 B1 EP4015687 B1 EP 4015687B1
Authority
EP
European Patent Office
Prior art keywords
electromagnet
housing
retaining lever
axis
lever
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21216581.5A
Other languages
English (en)
French (fr)
Other versions
EP4015687A1 (de
Inventor
Alexis Porte
Pascal Guenard
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 EP4015687A1 publication Critical patent/EP4015687A1/de
Application granted granted Critical
Publication of EP4015687B1 publication Critical patent/EP4015687B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/02—Single-lift jacquards
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/20—Electrically-operated jacquards
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C5/00—Cam or other direct-acting shedding mechanisms, i.e. operating heald frames without intervening power-supplying devices
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C13/00—Shedding mechanisms not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/12—Multiple-shed jacquards, i.e. jacquards which move warp threads to several different heights, e.g. for weaving pile fabrics
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types
    • D03C3/26—General arrangements of jacquards, or disposition in relation to loom

Definitions

  • the present invention relates to a mechanism for forming the shed on a Jacquard type loom, as well as a Jacquard type loom equipped with such a mechanism.
  • a shed forming mechanism selectively raises heddles each comprising an eyelet through which a warp thread passes.
  • the thread which passes through its eyelet is located above or below a weft thread moved by the loom.
  • a shedding mechanism comprises several movable hooks each provided with a lateral nozzle intended to cooperate with a knife driven by a vertical reciprocating movement.
  • Each movable hook is provided to interact with a retaining member which belongs to a selection device which is part of the shedding mechanism, this retaining member being controlled by means of an electromagnet.
  • the electromagnet can be mounted in a housing which defines a pivot shaft for each retaining lever.
  • the relative position of the retaining lever and the electromagnet, in particular of an attraction surface of this lever with respect to a polarization surface of the electromagnet, therefore depends on the positioning of the electromagnet in the housing. Depending on manufacturing and positioning tolerances, this relative position can therefore vary, within the crowd formation mechanism, for the different selection devices. This position may, moreover, vary over time.
  • an air gap or air gaps formed between the retaining lever and the ferromagnetic core of the electromagnet is dependent on variations in positioning of the electromagnet in the housing, which can greatly influence the magnetic force exerted between the lever and the electromagnet, when the latter is activated.
  • the present invention aims to improve the precision and reliability of the selection obtained through the crowd forming mechanism, in which the relative position of the retaining lever and the electromagnet is determined precisely and reliably, which makes it possible to precisely control the force of magnetic attraction between these elements and the supply current of the electromagnet.
  • the invention relates to a mechanism for forming the shed on a Jacquard type loom, this mechanism comprising a housing which extends in a longitudinal direction, at least one movable hook, moved in the housing by a knife in the longitudinal direction, between a bottom dead center position and a top dead center position, in or near which the hook can be retained by a selection device which comprises at least one electromagnet, which is attached and immobilized in the housing and which includes a ferromagnetic core comprising a first polar surface and a second polar surface, these polar surfaces being offset from one another in the longitudinal direction, and a non-magnetic part secured to the ferromagnetic core.
  • the selection device also includes a retaining lever configured to retain the movable hook when it is in or near its top dead center position.
  • the retaining lever is pivotally mounted about an axis of oscillation, between a position away from the electromagnet and a position against the electromagnet, and includes a ferromagnetic armature which magnetically interacts with the first and second polar surfaces to control the angular position of the retaining lever around the oscillation axis.
  • the non-magnetic part of the electromagnet comprises a surface for guiding the pivoting of the retaining lever around the axis of oscillation, this guide surface cooperating with the retaining lever in a direction radial to the axis oscillation between the remote position and the tackled position.
  • the guide surface is cylindrical with a circular base, centered on the axis of oscillation.
  • the magnetic force necessary to maintain the retaining lever in the pressed position against the electromagnet is therefore the same for all the shedding mechanism selection devices, which is advantageous in terms of controlling the weaving process on the loom to weave.
  • the invention relates to a Jacquard type loom which comprises a shed forming mechanism as mentioned above.
  • This loom has the same advantages as the shedding mechanism.
  • a sheet of warp threads 1 comes from a beam 2.
  • Each warp thread 1 passes through the eyelet 3a of a heddle 3 intended to open the pitch to allow the passage of a weft in order to constitute a fabric T which winds on a coil 4.
  • Only two heddles 3 and 3' are represented on the figure 1 , the rail 3 being in the high position, while the rail 3' is in the low position.
  • the lower end of each rail is connected to the frame fixed of the loom M by a tension spring 5, while its upper end is secured to an arch 6.
  • each arch has an end 6a secured to a housing 10 of the shed forming mechanism 7, this arch passing through a block 11 suspended from a cord 12 of which the two ends are respectively secured to two movable hooks 13 intended to be selectively lifted by knives 14 driven by a movement of alternating vertical oscillations in opposition to phase, as represented by the arrows F1 at the figure 1 .
  • Other configurations of the arches, cords and mittens are possible.
  • the shedding mechanism 7 can also be described as a “Jacquard module” and comprises a stack of several unit boxes, for example eight boxes.
  • a selection device comprising an electromagnet and two retaining levers, is disposed in each unit housing.
  • two hooks 13 are movable in each unitary housing longitudinally, that is to say along the longest dimension of the housing 10, which is vertical in the installed configuration of this housing within the shedding mechanism 7 mounted in the profession M.
  • These two movable hooks are, preferably, integral with the same cord, such as the cord 12 shown in figure 1 from which is suspended the muffle 11 in which the arch 6 passes.
  • Each electromagnet 100 of the shedding mechanism 7 comprises a ferromagnetic core 102, shown alone in the diagram. figure 2 , a carcass 104 made of non-magnetic material, a winding 106 wound around an intermediate part of the core 102, a covering 108 and electrical contacts 110 intended to be connected to two electrical cables not shown which connect it to the electronic control unit 8 and which allow the selective power supply of this electromagnet 100.
  • the carcass 104 and the covering 108 together form a non-magnetic part of the electromagnet 100.
  • the winding 106 and the electrical contacts 110 also belong to the non-magnetic part of the electromagnet 100.
  • non-magnetic we mean with a very low magnetic susceptibility, such that an non-magnetic part cannot interact magnetically with a ferromagnetic part.
  • X100 as a longitudinal axis of the electromagnet 100 oriented from top to bottom at the figure 2 .
  • Y100 as a transverse axis of the electromagnet 100 oriented from left to right at the Figure 4 .
  • Z100 as an axis of thickness or depth of the electromagnet 100, that is to say also the axis of smallest dimension of the electromagnet 100.
  • the axes X100, Y 100 and Z100 together form a mark orthogonal with direct orientation.
  • THE figures 4 And 6 are sections taken respectively in the direction of axis X100 at the Figure 3 and in the direction opposite to the X100 axis at the Figure 5 .
  • the core 102 has a thickness e102, measured parallel to the axis Z100, which is constant.
  • the core 102 generally has an I shape, with a longitudinal and central branch 120, which extends in a direction parallel to the axis X100, and two transverse branches 122 and 124, which extend mainly in directions parallel to the Y100 axis.
  • the longitudinal and central branch 120 is an intermediate part between the transverse branches 122 and 124.
  • the lateral ends of the upper transverse branch 122 form two upper polar surfaces S122 of the electromagnet 100, these first polar surfaces being defined in the edge of the core 102, being concave and being in the form of a section of cylinder with circular section centered on a axis A122 perpendicular to the main flat surfaces of core 102. Axes A122 are parallel to axis Z100.
  • the lateral ends of the lower transverse branch 124 form two lower polar surfaces S124 of the electromagnet 100. These second polar surfaces S124 are provided in the edge of the core 102, flat and parallel to the axes X100 and Z100.
  • the first polar surfaces S122 are offset from the second polar surfaces S124 along the axis X100.
  • a centering notch 126 is provided in the middle part of the lower branch 124, on an edge of this lower branch opposite the central branch 120.
  • the centering notch is arranged between and at an equal distance from the lower polar surfaces S124, according to the Y100 axis.
  • the carcass 104 is overmolded around the core 102 which it partially surrounds.
  • overmolded we mean that the material of the carcass 104 is injected into a mold in which the core 102 has previously been placed, so that the material of the carcass 104 surrounds this core 102 and is fixed on this core after hardening.
  • the carcass 104 is formed from a non-magnetic material, for example of the thermoplastic polymer type, optionally loaded with fibers. So the carcass 104 is integral with core 102 and has a fixed position relative to core 102.
  • the carcass surrounds the upper transverse branch 122 of the core 102 while being flush with the surfaces S122.
  • the carcass 104 is extended, on either side of the upper transverse branch 122, by a sole 142 and by a guide shaft 144 centered on a respective axis A144.
  • the two parts 142 and the two parts 144 are parts of the carcass 104 which are integral with the rest of the carcass 104, in particular with the part of this carcass which is arranged around the upper transverse branch 122.
  • each guide shaft 144 is connected to the carcass 104 and in particular to the adjacent sole 142 in a non-removable manner.
  • Axes A144 are parallel to axis Z100.
  • Each axis A144 coincides with the central axis A122 of the adjacent upper polar surface S122. Thus each axis A144 is at the same longitudinal level as the adjacent upper polar surface S122.
  • Each guide shaft 144 has a cylindrical external shape with a circular section and its external peripheral surface is denoted S144.
  • the carcass 104 also defines a centering pin 146 which extends opposite a middle portion of the upper branch 122 and which is centered on an axis A146 parallel to the axes A144 and to the axis Z100.
  • the centering pin 146 is also cylindrical with a circular section. Unlike the guide shafts 144, it is hollow, whereas the guide shafts are solid.
  • the carcass 104 comprises two bands 148 which cover the edges 120A and 120B of the central branch 120, which are perpendicular to the axis Y100, but not the side faces 120C and 120D of this central branch, which are perpendicular to the axis Z100 .
  • the carcass 104 also includes a foot 150, which covers the junction zone between the branches 120 and 124, and slats 152.
  • the lower transverse branch 124 projects from the carcass 104 both in a longitudinal direction of the ferromagnetic core 102, parallel to the axis X100, and in a transverse direction of this core, parallel to the axis Y100.
  • the carcass 104 does not extend at the level of the lower polar surfaces S124.
  • a sole 142 is arranged near one end of each guide shaft 144 and extends in a crown around it, while connecting this shaft to the rest of the carcass 104.
  • the soles 142 are formed on the non-magnetic part of the electromagnet 100.
  • S142 a surface of each sole 142 which is annular, perpendicular to the axis Z100 and turned towards the side of the guide shaft 144 which this sole surrounds.
  • This surface S142 is perpendicular to the axis A144 of the adjacent guide shaft 144 and extends in a ring, that is to say over 360°, around this guide shaft.
  • Surfaces S142 and S144 are adjacent and perpendicular.
  • S'142 the peripheral surface of a sole 142. This surface is a portion of a cylinder with a circular base centered on the axis A144 of the adjacent guide shaft 144. Thus, the peripheral surface S'142 of a sole 142 is coaxial with the external peripheral surface S144 of the adjacent guide shaft 144.
  • the surface S142 of a sole 142 delimits, with the external peripheral surface S144 of the adjacent guide shaft 144 and with the upper polar surface S122 which faces it, a volume V1 for receiving a part of a lever. retainer 200 represented alone in figures 7 to 9 . More precisely, the surface S144 defines the volume V1 radially to the axis A144 in a direction converging towards this axis. The surface S122 defines the volume V1 radially to the axis A144 in a direction diverging with respect to this axis. The surface S142 axially defines the volume V1, in a direction going from a free end 144E of the shaft 144 towards the adjacent sole 142, that is to say here in a direction opposite to that of the axis Z100.
  • the volume V1 which is defined by the electromagnet 100, can be described as a partial reception housing for the retaining lever 200.
  • each guide shaft 144 is constituted by a part of the electromagnet 100, in particular in a single piece with the carcass 104, makes it possible to reduce the positioning tolerances of this guide shaft with respect to the ferromagnetic core 102 , more precisely the positioning tolerances between surfaces S144 and S122. This contributes to the precision of the geometric definition of the volume V1 and to the precision of the guidance of the retaining lever 200 relative to the ferromagnetic core 102.
  • the winding 106 is produced by winding a wire in the form of a turn around the central branch 120 of the ferromagnetic core 102 equipped with bands 148. This winding is produced after the overmolding of the carcass 104 on the ferromagnetic core 102 so that the winding 106 is in contact with the side faces 120C and 120D of the central branch 120 but separated from the edges 120A and 120B by the strips 148. Each end of the wire constituting the winding 106 is connected to one of the two electrical contacts 110. The carcass 104 then ensures the electrical insulation between the two electrical contacts 110, and the electrical insulation between the core 102 and the two electrical contacts 110, including at their level. connection to the winding 106.
  • the covering 108 is applied to the parts 102, 104 and 106 by low pressure overmolding and forms, in particular, a layer of protection of the winding 106.
  • the geometry of the covering 108 can be deduced from the comparison of the figures 3 And 5 .
  • the covering 108, the winding 106 and the electrical contacts are then secured to the core 102.
  • the lever 200 comprises an armature 202 made of a ferromagnetic material, for example pure iron, and a non-magnetic body 204 secured to the armature 202.
  • the armature 202 interacts magnetically with the first and second polar surfaces S122, S124, as well as this emerges from the explanations which follow.
  • the reinforcement 202 extends parallel to the axis with a circular section centered on an axis A210 parallel to the axis Z200.
  • S210 the peripheral surface of the housing 210 which is an internal surface of the first end 206.
  • S206 the external peripheral surface of the end 206.
  • a portion S206A of this external peripheral surface S206 has a circular base centered on the axis A210. This portion S206A itself forms an external surface of the first longitudinal end 206.
  • the second longitudinal end 208 of the frame 202 defines a second housing 212 which also passes through this frame from one side to the other, depending on its thickness and in which the non-magnetic body 204 is anchored by means of a bar 214, in one piece with the rest of the non-magnetic body 204 and which passes through the housing 212 right through.
  • the non-magnetic body 204 is formed of a synthetic material, in particular a plastic material, for example of the thermoplastic polymer type, possibly loaded with fibers, which is overmolded on the metal frame 202 by filling the second housing 212, this which forms the bar 214.
  • the non-magnetic body 204 has a fixed position relative to the armature 202 and is mobile with the armature 202.
  • the non-magnetic body 204 surrounds the end 208 of the armature 202 and extends it in the direction of the longitudinal axis X200, that is to say opposite the first longitudinal end 206.
  • the non-magnetic body 204 forms a selection nose 216, a guide ramp 218 and a pin 220 surrounded, over its entire periphery, by a collar 222.
  • the surface S216 of the selection nose faces towards the armature 202 and towards the first end 206 makes it possible to retain a movable hook 13 in or near its top dead center position, by engaging in an orifice of this movable hook.
  • the nozzle 216 and the ramp 218 are located on the same side of this body, while the pin 220 and the collar 222 are located on the other side of this body.
  • the surface portion S206A is located on the same side of the retaining lever 200 as the pin 220.
  • the body 204 also includes a stop surface S204 intended to selectively come to bear against the electromagnet 100, depending on the position of the retaining lever.
  • the selection nose 216, the guide ramp 218 and the pin 220 are formed in one piece with the abutment surface S204.
  • the abutment surface S204 is adjacent to an external attraction surface S208 formed by the second end 208 of the armature 202, more particularly by a slice of a portion 208A of this second end which is not covered by the non-magnetic body 204.
  • the abutment surface S204 is adjacent to the external attraction surface S208 to the extent that the abutment surface S204 and the external attraction surface S208 have a common boundary.
  • the surfaces S206A and S208 are in electrical continuity since the armature 202 extends without discontinuity between these surfaces. This results, in particular, from the fact that, in this example, the frame 202 is in one piece.
  • the portion 208A of the end 208 which defines the external surface of attraction S208 constitutes the portion of the frame 202 furthest from the first end 206.
  • the armature 202 extends, in the direction of the axis X200, from the first end 206 to the junction of the external attraction surface S208 with the abutment surface S204. In other words, the armature 202 does not extend, over a significant length, inside the non-magnetic body 204, beyond the portion 208A.
  • the abutment surface S204 is generally flat and parallel to the axes X200 and Z200. It is equipped with transverse grooves 224, parallel to the axis Z200, and which are juxtaposed according to the longitudinal direction of the lever which is parallel to the axis X200. These grooves 224 have the effect that the surface S204 is not smooth but crenellated because it is formed from a juxtaposition of strips of material separated by the grooves 224.
  • Deflectors are formed by the non-magnetic body 204 and are integral with the rest of this body.
  • a first deflector 226 extends around the non-magnetic body 204, longitudinally at the same level as the abutment surface S204 but opposite this surface in the direction of the transverse axis Y200.
  • Two other deflectors 228 and 230 are formed by the non-magnetic body 204 on the same side as the abutment surface S204 but at different levels along the longitudinal axis X200, on either side of this surface along this axis X200. More precisely, the deflector 228 is arranged, along the axis stop S204 and the pin 220.
  • junction strips 232 connect the deflectors 228 and 230 in the longitudinal direction of the retaining lever 200. These junction strips 232 are arranged, along the axis Z200, on either side of the surfaces S204 and S208. The deflector 226 connects to the junction strips 232.
  • the deflectors 226, 228 and 230 are continuous with each other.
  • the deflectors 228 and 230 and the junction strips 232 form a continuous border around the surfaces S204 and S208 seen in the direction of arrow VIII at the Figure 7 .
  • the deflector 226 is disposed on the same side of the non-magnetic body 204 as the selection nozzle 216, while the pair of deflectors 228 and 230 are disposed on the same side as the abutment surface S204 and the external attraction surface S208.
  • the deflector 226 is arranged longitudinally, that is to say along the axis X200, between the deflectors 228 and 230.
  • the shedding mechanism 7 also includes one or more unit housing(s) 300 which is or are part of the housing 10.
  • the number of housings 300 which are part of the shedding mechanism 7 depends on the number of electromagnets 100. In practice, as many unit boxes 300 are provided as there are electromagnets 100.
  • An orthogonal reference X300, Y300, Z300 is associated with each unitary housing 300. This reference is defined respectively by a longitudinal axis
  • Each unitary housing 300 includes a half-shell 302 visible in its entirety in the upper part of the Figure 10 and which delimits a portion 304 of reception of a selection device 400 formed of an electromagnet 100 and two associated retaining levers 200, and a guide portion 306 of the two movable hooks 13 intended to be selected by means of the selection device.
  • the unitary housing 300 illustrated in the figures, with its electromagnet 100, comprising two pairs of first and second polar surfaces, and its two retaining levers 200 arranged on either side of the electromagnet along the axis Y100, is used in two-position Jacquard-type shedding mechanisms used for weaving so-called “flat” fabrics.
  • the receiving portion 304 is shown on a larger scale in the lower right part of the Figure 10 , while a portion of a cover 308, corresponding to portion 304, is represented in the lower left part of the Figure 10 .
  • the half-shell 302 and the cover 308 together constitute a unitary housing 300.
  • the bottom 303 of the half-shell 302 which is parallel to the axes rods or screws for securing several boxes 300 belonging to a stack of unit boxes of the shedding mechanism 7 which together form all or part of the box 10.
  • the unitary housing 300 defines a recess 314, which crosses the bottom 303 from side to side and which delimits a volume for partial reception of the electromagnet 100, and two zones 316 for receiving two associated retaining levers 200 to the electromagnet 100.
  • the bottom 303 of the half-shell 302 is crossed, right through in the direction of the axis Z300, by a centering housing 320 of circular shape and intended to receive the centering pin 146 in the mounted configuration of the electromagnet 100 in the unitary housing 300.
  • This centering housing has a geometry complementary to that of the centering pin 146.
  • a centering pin 322 projects from the bottom 303, parallel to the axis Z300, and is arranged, along the axis X300, between the recess 314 and the guide portion 306. This centering pin 322 is arranged opposite the centering housing 320 relative to the recess 314. This centering pin is intended to be engaged in the centering notch 126 of the ferromagnetic core 102 in the mounted configuration of the electromagnet 100 in the unitary housing 300.
  • the unitary housing 300 also forms baffles 324 in each zone 316 for receiving a retaining lever 200.
  • the unitary housing 300 defines a housing 326 in the form of a portion of a cylinder with a circular section for receiving a sole 142 of the electromagnet 100.
  • Each housing 326 is defined by an annular surface 328 and by a rib 330 which is of cylindrical internal shape with circular section and complementary to the external peripheral surface S'142 of a sole 142 of the electromagnet 100.
  • the cover 308 the face visible to the Figure 10 is that which is normally turned towards the bottom 303 of the half-shell 302, defines orifices 332 for passing rods or fixing screws, these orifices 332 being aligned with the orifices 312 in the mounted configuration of the cover 308 on the half-shell shell 302.
  • This cover 308 also defines a centering housing 334 which is aligned with the centering housing 320 in the mounted configuration of the cover 308 on the half-shell 302.
  • the cover 308 may not include a centering housing 334
  • This cover 308 further defines two recessed housings 336, each formed by an annular flat surface 338 and by a rib 339. These recessed housings 336 are respectively aligned with one of the housings 326 in the mounted configuration of the cover 308 on the half-shell 302.
  • Elements 302 and 308 are made by injection of electrically insulating polymer material, optionally loaded with reinforcing fibers in order to improve their mechanical properties. Elements 302 and 308 are non-magnetic.
  • the first longitudinal end 206 of the metal frame 202 is mounted around one of the guide shafts 144.
  • the axes A144 and A210 are combined , the surfaces S144 and S210 face radially the axis A144 and the respective dimensions of the surfaces S144 and S210 are chosen to allow pivoting of each retaining lever 200 around the axis of oscillation X144 while effectively guiding this pivoting movement.
  • the orthogonal marker X100, Y100, Z100 and each orthogonal marker axis A144 of the guide shaft around which the retaining lever 200 is mounted In the mounted configuration of a selection device 400, the orthogonal marker X100, Y100, Z100 and each orthogonal marker axis A144 of the guide shaft around which the retaining lever 200 is mounted.
  • each retaining lever 200 extends generally in the longitudinal direction of the unitary housing 300, that is to say parallel to the axis X300, downwards at from the first end 206 of this retaining lever.
  • the orthogonal marks X100,Y100,Z100, X200,Y200,Z200 and X300,Y300,Z300 are generally confused.
  • each retaining lever 200 faces one of the lower polar surfaces S124 of the electromagnet 100 parallel to the axis Y100.
  • Each retaining lever 200 is mobile, around the axis A144 of the guide shaft 144 around which the first longitudinal end 206 of its frame 202 is mounted, between a position pressed against the electromagnet, in the example pressed against the lower branch 124 of the ferromagnetic core 102, and a position remote from the electromagnet in which an empty space E of non-zero dimensions along the axes X100, Y100 and Z100 exists between the electromagnet, in the example the lower branch 124, and the lever 200.
  • the thickness of the empty space E which is measured along the axis Y, is non-zero in the position remote from the retaining lever 200 relative to the electromagnet 100.
  • distal and plated used to define the positions of the retaining lever relative to the electromagnet concern the remote or pressed nature of its abutment surface S204 with respect to the electromagnet.
  • the retaining lever 200 shown in the lower part of the Figure 11 is in the pressed position against the electromagnet, while the lever 200 represented in the upper part of the Figure 11 is in a position away from the electromagnet.
  • the surface S204 is in contact with a lower polar surface S124, to the point that it limits the pivoting movement of the lever 200 represented in the lower part to the Figure 11 , in the trigonometric direction around the axis A144 of the guide shaft 144 on which this lever 200 is pivotally mounted.
  • the external attraction surface S208 is not in contact but at a distance from the lower polar surface 124, in the sense that there is a transverse clearance J1 of non-zero dimension between the surfaces S208 and S124.
  • the dimension of clearance J1 is measured parallel to axes Y100, Y200 and Y300.
  • the presence of the clearance J1 of non-zero dimension over the entire length of the surface S208 along the axis X100 and over the entire thickness of the surface S208 taken along the axes Z100, Z200, Z300 means that an air gap exists between surfaces S124 and S208.
  • the abutment surface S204 projects, relative to the external attraction surface S208, in the direction of the electromagnet 100.
  • the surface of stop S204 protrudes transversely, in a direction parallel to axis Y200 and facing towards the electromagnet in mounted configuration of the retaining lever 200, relative to the external attraction surface S208, and this abutment surface S204 comes into contact with the second polar surface S124 while maintaining the external attraction surface S208 at a distance of the second pole S124 when the lever 200 pivots from its position away from the electromagnet to its position pressed against the electromagnet.
  • the surface S208 is an external attraction surface to the extent that, when the lever 200 is in its position pressed against the electromagnet 100 and when this electromagnet is activated, the magnetic attraction force between the ferromagnetic core 102 and the The metal frame 202 is exerted through this surface S208.
  • the reinforcement 202 in particular the portion 208A of the end 208, does not extend longitudinally at the level of the entire abutment surface S204.
  • the external attraction surface S208 is arranged longitudinally relative to the retaining lever 200, that is to say along the axis X200, between the abutment surface S204 and the axis A210.
  • the length l8 of the external attraction surface S208 is greater than the length l4 of the abutment surface S204 which comes opposite the lower polar surface S124 in the pressed position of the retaining lever 200 and which forms the contact zone between the surfaces S204 and S124.
  • Lengths l4 and l8 are measured parallel to the X200 axis. In the embodiment shown in figures 1 to 15 , the entire abutment surface S204 faces the lower polar surface S124 in the pressed position of the retaining lever 200.
  • this surface S204 comes into contact with the lower polar surface S124 or either facing the lower polar surface S124.
  • -e48 the length, measured parallel to the axis between the surfaces S208 and S204 in a plane parallel to the plane of the figure 8 .
  • This line L1 is perpendicular to the plane of the Figure 12 and makes visible, on the face of the retaining lever 200 shown in figure 8 , the junction zone Z1 between the parts 202 and 204.
  • the length -e48 therefore corresponds to the length of coverage of the second longitudinal end 208 by the abutment surface S204.
  • the ratio l48/l4 is less than 0.2.
  • the abutment surface S204 covers the armature 202 on less than a fifth of the length l 4 of the useful part of the abutment surface S204, which serves to support it against the electromagnet.
  • the deflectors 226, 228 and 230 are engaged in reception zones Z226, Z228 and Z230 formed by the baffles 324.
  • the cooperation of the deflectors and the baffles allows to isolate certain internal parts of the unitary housing 300 equipped with the selection device 400 from the guide portion 306, which makes it possible to protect these parts against the accumulation of dust, fluff or grease.
  • a helical compression spring 340 is interposed between a central rib 342 of the housing 300 and the non-magnetic body 204 of a retaining lever 200.
  • Each spring 340 has the function to recall by default the retaining lever 200 against which it is supported towards its position distant from the electromagnet 100.
  • the pin 220 is engaged inside the spring 340 and makes it possible to center this spring , while the collar 222 makes it possible to accommodate the terminal turn of the spring all around the support pin 220.
  • the terminal turn of the spring 340 necessarily rests on this collar 222 without risk that this terminal turn slides on the side of the pin 220, which guarantees the repeatability of the return force of the spring 340.
  • Each movable hook 13 comprises a body 502 made of plastic material and a flexible strip 504 mounted on the body 502.
  • the flexible strip which is preferably metallic, is intended to come into sliding support against the guide ramp 218 of a lever.
  • retainer 200 and has an orifice 508, visible in dotted lines at the Figure 11 and known per se, in which the selection nozzle 216 of the retaining lever 200 in question can be engaged.
  • each body 502 is overmolded on one end of the cord 12 which supports the muffle 11.
  • Each body 502 defines a support nozzle 506 on a knife 14. To do this, each support nozzle 506 projects laterally from the unitary housing 300 in which the movable hook 13 is installed to come to rest, by cooperation of shapes, on the upper face of the knife.
  • the first longitudinal end 206 is received partially in the volume V1.
  • the surface portion S206A is arranged facing the first polar surface S122 formed by the ferromagnetic core 102, these facing surfaces being in the form of a cylinder portion with a circular base centered on the axes A122, A144 and A210 then combined. These surfaces delimit between them a clearance J2, radial to the axes A122, A144 and A210.
  • This radial clearance J2 has a non-zero thickness, this thickness being measured radially at the axes A122, A144 and A210.
  • This radial clearance J2 defines an air gap between the surfaces S122 and S206A.
  • the radial thickness of the air gap defined by the clearance J2 can be between 0.1 and 0.2 millimeters (mm), preferably of the order of 0.15 mm.
  • P144 a transverse plane parallel to the axes Y100, Y200 and Y300, on the one hand, Z100, Z200, Z300, on the other hand and perpendicular to the axes X100, X200 and X300, and containing the axes A122, A144 and A210.
  • the air gap defined by the radial clearance J2 extends around the axis A122 over a global angular sector with apex angle ⁇ .
  • a first part of this overall angular sector is located below the transverse plane P144, on the side of the second polar surface S124 relative to this plane, and has a vertex angle ⁇ 1.
  • a second part of this overall angular sector is located above the transverse plane P144, that is to say opposite the second polar surface S124, and has a vertex angle ⁇ 2.
  • the sum of angles ⁇ 1 and ⁇ 2 is equal to angle ⁇ .
  • the angles ⁇ , ⁇ 1 and ⁇ 2 respectively represent the angular amplitudes of the overall angular sector and its first and second parts.
  • each first polar surface S122 of the electromagnet 100 extends on either side of the transverse plane P144 and comprises a first portion S122A located, relative to this plane, on the same side as the second surface polar S124 and which has an angular amplitude ⁇ 1, as well as a second portion S122B located, relative to this plane, opposite the second polar surface S124 and which has an angular amplitude ⁇ 2.
  • the ⁇ 1/ ⁇ ratio is between 0.2 and 0.4, preferably equal to 0.33. In this preferred case, the ⁇ 1/ ⁇ 2 ratio is 0.5.
  • the good geometric precision obtained at the level of the air gap defined between the surfaces S122 and S206A makes it possible to optimize the size of these surfaces.
  • the ratio between the diameter of the surface S122 and the diameter of the surface S144 can be chosen greater than 1.4, preferably of the order of 1.5.
  • This good precision also makes it possible to separate, according to the longitudinal direction parallel to the axis X100 or at the axis X300, the first and second polar surfaces S122 and S124, without penalizing the longitudinal size of the electromagnet.
  • the carcass 104 is overmolded onto the ferromagnetic core 102, then the winding 106 is fitted, the contacts 110 and the connecting wires are fitted. between these contacts and the winding 106 and then to the overmolding of the covering 108.
  • the electromagnet 100 thus manufactured, with its guide shafts 144, is attached and immobilized in the half-shell 302 of the unitary housing 300.
  • the introduction of the electromagnet 100 in the recess 314 takes place in a direction parallel to the axis Z300, inserting the centering pin 146 into the centering housing 320 of the unitary housing 300.
  • the centering pin 146 which is arranged between the two upper polar surfaces S122 and equidistant from them allows, by its fitting into the bottom 303 of the half-shell 302 of the unitary housing 300, to ensure the positioning of the electromagnet 100 in the unitary housing 300, at both in the longitudinal and transverse directions respectively parallel to the X300 axis and to the Y300 axis.
  • centering notch 126 of the ferromagnetic core 102 is placed, without play in the lateral direction parallel to the axis Y300, around the centering pin 322 of complementary shape provided on the half-shell 302.
  • the winding 106 of the electromagnet 100 is then aligned with the recess 314 made through the bottom of the housing parallel to the axis Z100.
  • the carcass 104 of the electromagnet 100 then rests by flat support on two bearing surfaces of the bottom 303 of the half-shell 302, one disposed between the lower polar surfaces S124, the other disposed between the upper polar surfaces S122 .
  • the external peripheral surface S'142 of the sole 142 is an external radial surface in the portion of a cylinder centered on the shaft 144 which then coincides with the axis A122.
  • each sole 142 of the electromagnet 100 is engaged in a housing 326 of the unitary housing 300, as shown in figures 14 And 15 .
  • the external radial surface S'142 of a sole 142 then faces the corresponding rib 330 in the plane of the Figure 15 , in a longitudinal direction parallel to the axes X100, X200 and X300 which is vertical and directed downwards. A part of the rib 330 is therefore arranged facing the surface S'142 in the longitudinal direction.
  • a reduced longitudinal clearance J3 is defined between the external peripheral surface S'142 and the rib 330 in the plane of the Figure 15 .
  • This game J3 is therefore vertical and has, in practice, a non-zero thickness when the electromagnet 100 is placed in the unit housing 300 in order to prevent this installation from generating a hyperstatic situation.
  • the thickness of the game J3 is measured parallel to the axis X300.
  • the thickness of the J3 game is less than or equal to 0.5 mm.
  • the oscillation axes A144 are fixed relative to the half-shell 302 and the electromagnet 100.
  • the free ends 144E of the guide shafts 144 extend opposite the bottom 303 of the half-shell 302.
  • the two guide shafts 144 extend with their axes A144 parallel to the axis Z300 and are perpendicular to the bottom 303 of this half shell.
  • the retaining levers 200 are then placed around the guide shafts 144 of the carcass 104, providing that a first longitudinal end 206 of each retaining lever 200 comes to surround a guide shaft 144.
  • the axis A210 of each retaining lever 200 is aligned with the axes A122 and A144, then the first longitudinal end 206 of the armature 202 is partially engaged in the volume V1, by an axial translation parallel to the axes A122, A144 and A210, up to to come into abutment against the surface S142 of one of the soles 142. This amounts to hooking the retaining levers on the electromagnet in place in the unit housing.
  • each external attraction surface S208 faces a lower polar surface S124 of the electromagnet 100, in the transverse direction parallel to the axes Y100, Y200 and Y300.
  • each retaining lever 200 is neither facing the first polar surface S122, nor facing the second polar surface S124 but arranged longitudinally at the central branch 120 of the core 102 and the winding 106.
  • the deflectors 226, 228 and 230 of the non-magnetic body 204 are engaged in the zones Z226, Z228 and Z230 defined by the baffles 324, at course of the axial translation mentioned above.
  • these retaining levers are connected to the rest of the selection device 400 and each movable in rotation around an axis A144 which is fixed relative to the unitary housing 300 since the electromagnet 100 is immobilized in the unit housing 300.
  • the external radial surfaces S144 of the guide shafts 144 therefore form cylindrical guide surfaces which cooperate, with reduced clearance, with the retaining levers 200, more particularly with the surfaces S210 of the housings 210, in their pivoting movement around their axis oscillation A144.
  • reduced clearance we mean a radial clearance at the oscillation axis A144 strictly less than the clearance J2, to guarantee a non-zero air gap between the surface S206 and the first adjacent polar surface S122, and therefore the absence of contact between the armature 202 of the lever 200 and the polar surface S122, between the remote position and the pressed position of the retaining lever.
  • the guide surfaces S144 are formed on the non-magnetic part of the electromagnet. Each guide shaft 144 forms a point of attachment of a lever 200 to the housing 300, this point of attachment being fixed relative to the electromagnet 100.
  • the cooperation of the deflectors 228 and 230 with the zones Z228 and Z230 defined by the baffles 324 also makes it possible to isolate a zone of attraction defined between, on the one hand, the lower polar surface S124 and, on the other hand, the external surface attraction S208 and the abutment surface S204. This makes it possible to keep this attraction zone free of grease and dust to guarantee a satisfactory air gap between the lower polar surface S124 and the external attraction surface S208 when the retaining lever 200 is in its position pressed against the electromagnet.
  • the two retaining levers 200 can then oscillate around their respective guide shafts 144, between the remote and placed positions respectively represented in the upper part and in the lower part of the Figure 11 . In a manner known per se, this makes it possible to selectively retain the movable hooks 13 in position, depending on a command sent to the electromagnet 100 by the electrical contacts 110.
  • the movable hooks 13 and the cords 12 can then be placed in the guide portion 306 of the half-shell 302. Alternatively, the movable hooks 13 and the cords 12 are placed in the half-shell before the elements 100 and 200.
  • the free ends 144E of the guide shafts 144 protrude from the retaining levers 200, in a direction parallel to the axes Z100 , Z200 and Z300. It is then possible to cover the half-shell 302 with the cover 308, the half-shell 302 and the cover 308 being stacked along the axis Z300, by aligning the orifices 332 with the orifices 312 and the housings 336 with the free ends. 144E of the guide shafts 144. Securing rods or screws are then placed in the orifices 312 and 332.
  • half-shells 302 each equipped with a selection device 400, the bottom 303 of a half-shell serving as a cover for the adjacent half-shell, and to use a cover 308 only for the last half-shell 302.
  • This configuration is partially represented in figures 14 And 15 .
  • the orifices 312 of the half-shells 302 are superimposed and securing rods or screws are then placed in these orifices.
  • first unitary housing is formed by the first half-shell and by the bottom 303 of the second half-shell. The same applies to the other unitary cases, except for the last one which is covered by the cover 308.
  • the recessed housing 344 is provided on the side of the bottom 303 of the second half-shell 302 opposite the electromagnet 100. contained in this half-shell.
  • the bottom 346 of the recessed housing 344 of the second half-shell comes to rest against the free end 144E of the guide shaft 144, in a direction parallel to the axis Z300.
  • the cylindrical wall 348 which defines the housing 344 is substantially complementary to the external peripheral surface S144 of the guide shaft 144, which makes it possible to center each guide shaft in the second half-shell 302 of the second unitary housing 300 .
  • THE figures 14 And 15 show that the bottom of the first half-shell of the stack of unitary boxes is not equipped with a recessed housing 344, which would be useless.
  • the flat and annular surface 338 constituted by the bottom 303 of the second half-shell 302 and which surrounds the recessed housing 344 faces the sole 142 of the electromagnet received in the first half-shell.
  • the first end 206 of the frame 202 is arranged between the surfaces S142 and 338 which face each other in a direction parallel to the axis Z300.
  • the surface 338 serves as a cover for the volume V1 in which the frame 202 is partially received.
  • cover 308 is the flat and annular surface 338 of a recessed housing 336 which closes the volume V1.
  • the housings 300 are centered relative to each other in the longitudinal and transverse directions parallel to the axes X300 and Y300 and are supported against each other in the direction of the axis Z300.
  • each electromagnet 100 selectively controls, by means of the two retaining levers 200 associated with it, the retention or release of one and the other of the two movable hooks 13 which are arranged on either side of this electromagnet in the same unit housing 300.
  • the two movable hooks 13 are shown near the dead center of their trajectory.
  • the mobile hook 13 visible in the upper part of the Figure 11 is hooked on the corresponding retaining lever 200, by introducing the selection nozzle 216 of this retaining lever into an orifice 508 of the strip 504 of this movable hook, which is possible because this retaining lever 200 is in a position far from the electromagnet 100.
  • the movable hook 13 shown in the lower part of the Figure 11 is released from the selection nose 216 of the corresponding retaining lever, which is held in the pressed position, to the point that its selection nose 216 is not found on the trajectory of the upper end of the strip 504 of this movable hook.
  • the strip 504 of each movable hook 13 comes into contact with the guide ramp 218 of the retaining lever corresponding 200 and exerts on this lever a lateral force directed towards the electromagnet parallel to the axis Y100, against the force exerted by the spring 340 engaged around the pin 220 of this retaining lever.
  • This lateral force causes the retaining lever to pivot around its axis of oscillation A144 from its remote position shown in the upper part of the Figure 11 , in its plated position, shown in the lower part of this figure. This operation constitutes the leveling of the retaining levers 200.
  • each retaining lever 200 between its position away from the electromagnet 100 and its position pressed against this electromagnet, the upper air gap, defined by the radial clearance J2, remains identical, with a non-zero value.
  • the lower air gap defined between the external surface of attraction S208 and the lower polar surface S124 decreases until it presents a non-zero thickness represented by the clearance J1 at the Figure 12 .
  • the non-zero value of the lower air gap is well controlled by the fact that the surfaces S204 and S208 are both carried by the retaining lever 200 and by the contacting of the abutment surface S204 against the electromagnet, in particular at the level of its lower polar surface S124 opposite which the external surface of attraction S208 is arranged.
  • the value of the clearance J1 is chosen according to the magnetic force to be exerted on the retaining lever 200 to keep it in the pressed position against the electromagnet 100, which depends, among other things, on the magnetic properties of the armature 202 and the spring stiffness constant 340.
  • the value of the clearance J1 is between 0.01 and 0.06 mm, preferably between 0.025 and 0.05 mm, more preferably of the order of 0.04 mm.
  • each retaining lever 200 is configured to interact with the polar surfaces S122 and S124 of the electromagnet 100, depending on the activation of this electromagnet, in order to control the angular position of this retention lever. retained relative to the electromagnet, around its axis of oscillation A144. This makes it possible to select, that is to say maintain in the high position, or to release, that is to say let it go back down, a movable hook 13 resting on a knife 14, at the start of its downward movement .
  • the electromagnet 100 makes it possible to control whether or not the retaining lever 200 is held in the position pressed against the electromagnet.
  • a movable hook 13 has been retained by the retaining lever 200, when the corresponding knife 14 again reaches the vicinity of the top dead center position of its trajectory, the knife 14 again pushes back the body 502 and the blade 504 of the movable hook upwards, the strip again comes to rest against the guide ramp 218 to press the retaining lever against the lower polar surface S124 of the electromagnet 100, as part of the leveling.
  • the movable hook 13 can be kept pressed against the electromagnet or not, depending on the activation of the electromagnet 100.
  • the movable hook ensures the movement of the retaining lever from its remote position towards its pressed position, without pressing the retaining lever against the electromagnet, the remaining travel of the retaining lever to reach its pressed position being caused by the activation of the electromagnet (“call”).
  • a single abutment surface S204 is used which is as far away as possible from the oscillation axis A144 of the retaining lever 200, which makes it possible to reduce the length of the metal frame 202 to the minimum length necessary to establish the magnetic circuit between the first and second polar surfaces.
  • the metal reinforcement may only extend as far as the junction between the abutment surface S204 and the external attraction surface S208, which is marked by the line L1. This makes it possible to reduce the length of the armature 202, therefore the inertia of the retaining lever 200 and its cost price.
  • the first polar surfaces S122 formed by the ferromagnetic core 102 of the electromagnet 100 are arranged at the level of the lower transverse branches 122 of the core 102 located in the lower part of the electromagnet 100, while the second polar surfaces S124 are arranged at the level upper transverse branches 124 of the core 102 located in the intermediate part of this electromagnet 100.
  • the second polar surfaces S124 are arranged above the first polar surfaces S122, according to a longitudinal direction of this electromagnet 100 which is parallel to the axis X100.
  • the carcass 104 of the electromagnet 100 is pierced with two positioning housings 145 intended to receive positioning members provided in the body 300 of the shedding mechanism.
  • the second polar surfaces S124 are crenellated and provided with transverse grooves 125, which extend parallel to the axis Z100 and which delimit between them separate strips of material, in a manner comparable to the grooves 224 and strips formed on the surface S204 of the first embodiment.
  • two abutment surfaces S204 are delimited on the retaining lever 200 on either side, in a longitudinal direction parallel to the axis X200, of the external attraction surface S208 defined by the armature 202 of this lever .
  • the portion 206 of the frame 200 an opening 210 of which is engaged around the guide shaft 144, is defined in an intermediate zone of the lever 200.
  • the frame 202 comprises, in addition this part 206, two branches 205 and 207 which extend in opposite longitudinal directions, generally parallel to the axis X200, from this portion 206 and which respectively carry a first portion 204A and a second portion 204B of the non-magnetic body 204 of this retaining lever 200.
  • the first portion 204A defines the selection nozzle 216 and the guide ramp 218.
  • the second portion 204B defines the two abutment surfaces S204.
  • a spring 340 tends to move the abutment surfaces S204 away from the electromagnet 100 by default.
  • the selection nozzle and the retaining ramp are formed directly on the frame 202 and can cooperate with a hook molded from synthetic material, as envisaged in EP-A-0823501 .
  • the guide shafts 144 are formed on the non-magnetic part of the electromagnet 100 secured to the ferromagnetic core 102 but are not integral with the non-magnetic carcass 104 of the electromagnet 100. It is thus possible to use, to constitute these shafts guide 144, a material different from that of the carcass 104 which includes the soles 142.
  • the guide shafts 144 are attached to the non-magnetic carcass 104 of the electromagnet 100 and connected inseparably with the non-magnetic carcass 104 and with the soles 142. The non-magnetic carcass 104 then connects the shafts 144 and the core 102.
  • the material of the guide shafts 144 can be a metal or a synthetic material which is non-magnetic and whose mechanical characteristics are particularly adapted to its function such as , for example, a ceramic material or a polymer other than that of the non-magnetic carcass 104.
  • these attached guide shafts are connected to the carcass 104 during the overmolding operation on the core 102.
  • the non-magnetic carcass 104 is molded by injection of a polymer material and formed prior to its assembly with the ferromagnetic core 102.
  • the non-magnetic carcass 104 defines a volume for receiving the ferromagnetic core 102, the ferromagnetic core being centered in this receiving volume by means of two pins 154 which form part of the carcass 104 and which pass through two orifices of corresponding shape 134 formed in the ferromagnetic core 102.
  • the injected carcass is in one piece and comprises two guide shafts 144 and two soles 142 which define, by their respective surfaces S144 and S142 and with the first polar surfaces S122, volumes V1 for partial reception of the armatures of two retaining levers which can be identical to those of the first embodiment.
  • the two guide surfaces S144 are therefore formed on parts 144 of the electromagnet which are integral with each other.
  • the unitary housing 300 of this fourth embodiment defines, as in the first embodiment, a recess 314, in which the portion of the electromagnet 100 which carries the winding can be engaged, and two zones 316 for receiving the levers of detention.
  • Two housings 326 for receiving the soles 142 and the guide shafts 144 are provided on either side of the recess 314, in a transverse direction of the unitary housing 300, which is parallel to an axis Y300 defined as in the first mode of realization, within an orthogonal reference X300, Y300, Z300.
  • this housing is comparable to that of the first embodiment, except that its geometry is adapted to that of the electromagnet 100 partially represented in the Figure 19 .
  • each housing 326 is defined by a flat surface 328 and by a rib 330 which surrounds a sole 142 of the electromagnet 100, in the installed configuration of the electromagnet in the housing 300.
  • the electromagnet 100 When the electromagnet 100 has been wound, starting from the configuration shown in Figure 19 , with the winding which winds around the intermediate part 120, in contact with the side faces 120C and 120D and around the bands 148, defined as in the first embodiment, it is placed in the housing 300, then a quantity of polymer material forming a covering 108 is placed in the housing by overmolding and partially covers the electromagnet in order to protect the winding and to immobilize, in an unremovable manner, the electromagnet 100 in the housing 300. During its overmolding in the housing 300, the covering 108 is contained so as to remain spaced from the polar surfaces S122 and S124. This allows you to reach the configuration of the Figure 21 from which the retaining levers can be placed in the housing 300, by engaging orifices provided in their respective frames around the guide shafts 144, as envisaged for the first embodiment.
  • the winding wraps around the longitudinal and central branch 120, in contact with only one of the lateral faces 120C or 120D and around the strips 148, the carcass extending facing each other, along the axis Z100, on the other among the transverse faces 120D or 120C, between the two strips 148.
  • the fact that the axis of oscillation of the retaining lever is provided at the longitudinal level of the first polar surface guarantees good control of the air gap between the armature of the movable retaining lever and this first surface.
  • polar with a radial thickness equal to the non-zero clearance J2, taken radially at the axes A122, A144, whatever the position of the retaining lever between its remote position and its position pressed against the electromagnet.
  • the clearance J2 can be variable over the angular extent of the air gap between the armature and the first polar surface.
  • the stop surface guarantees good control of the air gap of thickness equal to the clearance J1, measured parallel to the axes Y100, Y200 and Y300, between the retaining lever and the second polar surface, when the lever retained is in its position pressed against the electromagnet.
  • the stop surface is placed on the retaining lever, rather than on the electromagnet, its position with respect to the guide ramp and the selection nose is defined with good precision, in particular better precision than if this surface was provided on the electromagnet.
  • providing the abutment surface on the retaining lever simplifies the construction of the electromagnet, which constitutes a more bulky part and more complicated to manufacture than the retaining lever itself.
  • the formation of the soles 142 in a single piece with the non-magnetic carcass 104 of the electromagnet 100 maximizes the positioning precision between the retaining lever 200 and the ferromagnetic core 102 in a direction parallel to the axes Z100, Z200 and Z300. This allows good control of the air gaps between the selection levers 200 and the electromagnet 100.
  • the fact of defining the guide surface S144 on the electromagnet 100 makes it possible to test the correct operation of the electromagnet, by means of a test retaining lever, before installing this electromagnet in the unitary box 300.
  • the air gap between each retaining lever 200 and the ferromagnetic core 102 makes it possible to reduce the angular amplitude of the portion of cylinder forming the first polar surface 122 by distributing this portion of cylinder relative to the transverse plane P144, as explained above with the angles ⁇ , ⁇ 1 and ⁇ 2. Indeed, as the geometric precision of the air gap achieved at this level is improved compared to the prior art, the angular amplitude of the air gap in the cylinder portion and the external diameter of the guide shaft 144 can be reduced.
  • the electromagnet 100 provided with its covering 108 is attached to the unitary housing 300, no overmolding operation in the housing is to be carried out, which simplifies the manufacture of this part of the shed forming mechanism 7, allowing the use of wider tolerances, which is all the more advantageous as the housing 300 is a relatively thin and elongated part.
  • the mounting of the electromagnet 100 on the unitary housing 300 by cooperation of shapes, with minimum play or without play, is easy to implement and compatible with the dismantling of the mechanism crowd training.
  • the electromagnet 100 to which it belongs, without having to change the unitary housing 300 or the other members which it contains.
  • the presence of the recess 314 and the fact that the winding 106 is in direct contact with the side faces 120C and 120D of the central branch 120 of the ferromagnetic core 102 gives good compactness to each unitary housing. 300 equipped with an electromagnet 100, in a direction parallel to the axis Z300.
  • the offset of the deflectors on each lateral side of the unitary housing causes them to form, on each transverse side of the retaining lever, a relatively long edge, which improves the seal obtained.
  • the first polar surfaces S122 are offset relative to the second polar surfaces S124, in the longitudinal direction of the shedding forming mechanism. crowd which is parallel to the axes X100 and X300 which are then merged.
  • the winding extends between the first pole surfaces S122 and the second pole surfaces S124 in the longitudinal direction.
  • the guide surface formed on the electromagnet 100 and which interacts with the retaining lever 200 is a surface disposed outside of this retaining lever 200, that is to say say a surface which partially surrounds it.
  • a guide surface can be a concave surface in portion of cylinder which faces a cylindrical external radial surface of the lever 200, centered on the axis of oscillation, for example on the side opposite the core of the electromagnet 100. This is a mirror configuration of those shown in the figures.
  • the guide surface is distinct from any polar surface of the electromagnet and is preferably provided on the carcass 104.
  • the radial clearance between the guide surface and the cylindrical external radial surface of the lever is strictly less than the dimension of the air gap between the first polar surface and the facing surface of the lever.
  • the electromagnet 100 can be mounted in the unitary housing 300 such that its guide shafts 144 extend, from the soles 142, towards the bottom 303 of the half -shell 302 which accommodates the electromagnet 100.
  • the longitudinal ends 206 of the retaining levers 200 are then received between the soles 142 and the bottom 302 of the half-shell 302 which accommodates the electromagnet 100.
  • the free end 144E of the The shaft of each guide shaft 144 then cooperates with a recessed housing, comparable to the recessed housing 344 of the first embodiment, which is provided not on a second adjacent housing but in the bottom 303 of the housing 300 in which is received the electromagnet 100.
  • a centering pin comparable to the centering pin 146 is provided in the unitary housing 300, while a housing of corresponding shape, comparable to the housing 320 is provided on the electromagnet, of preferably in its non-magnetic carcass 104. This facilitates the installation of the electromagnet 100 in the housing 300, like the cooperation of elements 146 and 320 in the first embodiment.
  • the axes of oscillation A144 can extend in a direction parallel to the axis Y100, and not in a direction parallel to the axis Z100.
  • the sole 142 then extends preferentially in a plane parallel to the plane formed by the axes X100 and Z100.
  • a housing in the context of associating two-position mechanisms, can receive two electromagnets each defining two guide shafts, these two electromagnets being superimposed in the longitudinal direction as described, for example, in EP-B-1619279, to make it possible to reach three or four positions of the heddle, which makes it possible to weave fabrics other than so-called “flat” fabrics.
  • the selection device then comprises more than two movable hooks, these movable hooks being secured, in pairs, to the same cord.
  • a single movable hook 13 or more than two movable hooks can be provided in the housing 30.

Landscapes

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

Claims (15)

  1. Fachbildungsmechanismus (7) auf einer Webmaschine vom Typ Jacquard (M), wobei dieser Mechanismus (300) ein Gehäuse umfasst, das sich gemäß einer Längsrichtung (X100, X200, X300) erstreckt, mindestens einen beweglichen Haken (13), der im Gehäuse durch ein Messer (14) gemäß der Längsrichtung zwischen einer unteren Totpunktposition und einer oberen Totpunktposition verschoben wird, in oder in der Nähe der der Haken durch eine Auswahlvorrichtung (400) zurückgehalten werden kann, die mindestens Folgendes umfasst:
    - einen Elektromagnet (100), der im Gehäuse (300) aufgesetzt und immobilisiert ist, und der Folgendes beinhaltet
    o einen ferromagnetischen Kern (102), umfassend eine erste polare Fläche (S122) und eine zweite polare Fläche (S124), wobei diese polaren Flächen voneinander gemäß der Längsrichtung (X100, X200, X300) voneinander versetzt sind, und
    o einen nichtmagnetischen Teil (104, 106, 108, 110), der einstückig mit dem ferromagnetischen Kern ist;
    - einen Rückhaltehebel (200), der konfiguriert ist, um den beweglichen Haken zurückzuhalten, wenn dieser in oder in der Nähe seiner oberen Totpunktposition ist, wobei der Rückhaltehebel schwenkend um eine Schwingachse (A144) zwischen einer vom Elektromagneten entfernten Position und einer gegen den Elektromagneten gedrückten Position montiert ist, und umfassend einen ferromagnetischen Anker (202), der magnetisch mit der ersten und der zweiten polaren Fläche in Wechselwirkung steht, um die Winkelposition des Rückhaltehebels um die Schwingachse zu steuern,
    adurch gekennzeichnet,
    - dass der nichtmagnetische Teil des Elektromagneten eine Fläche (S144) zur Führung des Schwenkens des Rückhaltehebels (200) um die Schwingachse (A144) umfasst, wobei diese Fläche zur Führung mit dem Rückhaltehebel in einer radialen Richtung zur Schwingachse (A144) zwischen der entfernten Position und der gedrückten Position zusammenarbeitet, und
    dadurch, dass die Führungsfläche (S144) zylindrisch mit runder Basis, zentriert auf der Schwingachse, ist.
  2. Mechanismus nach Anspruch 1, dadurch gekennzeichnet, dass die Führungsfläche (S144) die externe Umfangsfläche einer Führungswelle (144) ist, um die der Rückhaltehebel (200) schwenkend montiert ist.
  3. Mechanismus nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der nichtmagnetische Teil des Elektromagneten auch eine Grundplatte (142) umfasst, ab der sich die Führungsfläche (S144) erstreckt, und dadurch, dass ein Aufnahmevolumen (V1) eines Abschnitts (206) des Rückhaltehebels gemäß einer radialen Richtung zur Schwingachse (A144) durch die Führungsfläche (S144) und gemäß einer Richtung parallel zur Schwingachse durch die Grundplatte (142) begrenzt ist.
  4. Mechanismus nach Anspruch 2 und 3, dadurch gekennzeichnet, dass die Grundplatte (142) als Krone um ein Ende des Führungswelle (144) angeordnet ist.
  5. Mechanismus nach Anspruch 2 und 3 oder nach Anspruch 4, dadurch gekennzeichnet, dass das Gehäuse (300) aus einer Halbschale (302) zur Aufnahme der Auswahlvorrichtung (400) und einem Deckel (308) gebildet ist, wobei die Halbschale und der Deckel gemäß einer zweiten Richtung (Z300) des Gehäuses gestapelt sind, die senkrecht zur Längsrichtung ist, dadurch, dass sich die Schwingachse (A144) entlang der zweiten Richtung (Z300) des Gehäuses erstreckt, und dadurch, dass die Halbschale (302) oder der Deckel (308) ein hohles Lager (344, 336) mit komplementärer Form zur Führungswelle (144) und eine ringförmige Fläche (338) bilden, die um das hohle Lager angebracht ist, dadurch, dass ein freies Ende (144E) der Führungswelle (144) gegenüber der Grundplatte (142) in das hohle Lager (344) eingegriffen und in Auflage gegen einen Boden (346) dieses hohlen Lagers gemäß der zweiten Richtung (Z300) des Gehäuses ist, und dadurch, dass ein Teil (206) des Rückhaltehebels (200) zwischen der Grundplatte und der ringförmigen Fläche gemäß der zweiten Richtung (Z300) des Gehäuses angeordnet ist.
  6. Mechanismus nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste polare Fläche (S122) des ferromagnetischen Kerns (102) ein Zylinderabschnitt ist, der auf der Schwingachse (A144) zentriert ist, und dadurch, dass ein Teil des Ankers (202) des Rückhaltehebels zwischen der Führungsfläche (S144) und der ersten polaren Fläche (S122) radial zur Schwingachse (A144) eingefügt ist, und dadurch, dass die Zusammenarbeit zwischen der Führungsfläche (S144) und dem Rückhaltehebel die Abwesenheit eines Kontakts zwischen der ersten polaren Fläche (S122) und dem Anker zwischen der gedrückten Position und der entfernten Position des Rückhaltehebels garantiert.
  7. Mechanismus nach Anspruch 6, dadurch gekennzeichnet, dass sich die erste polare Fläche (S122) auf beiden Seiten einer Querebene (P144) erstreckt, die durch die Schwingachse (A144) verläuft und senkrecht zur Längsrichtung (X100, X200, X300) ist, und dadurch, dass die Beziehung zwischen einerseits der Winkelamplitude (α1) eines Abschnitts (S122A) der ersten polaren Fläche, die sich mit Bezug auf die Querebene auf der gleichen Seite wie die zweite polare Fläche (S124) befindet, und andererseits der gesamten Winkelamplitude (α) der ersten polaren Fläche im Bereich zwischen 0,2 und 0,4 liegt, vorzugsweise gleich 0,33 ist.
  8. Mechanismus nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Anker (202) des Rückhaltehebels (200) eine externe Anziehungsfläche (S208) umfasst, die gegenüber der zweiten polaren Fläche ist, wenn sich der Rückhaltehebel in der gegen den Elektromagneten gedrückten Position befindet, dadurch, dass der Rückhaltehebel (200) einen nichtmagnetischen Körper (204) umfasst, der einstückig mit dem Anker ist, und der mindestens eine Anschlagfläche (S204) umfasst, die
    • benachbart der äußeren Anziehungsfläche (S208) ist;
    • in Richtung des Elektromagneten (100) mit Bezug auf die äußere Anziehungsfläche vorspringt;
    • entfernt vom Elektromagneten ist, wenn sich der Rückhaltehebel in seiner gegen den Elektromagneten gedrückten Position befindet; und
    • in Kontakt mit dem Elektromagneten ist, wenn sich der Rückhaltehebel in seiner gegen den Elektromagneten gedrückten Position befindet,
    und dadurch, dass in der gegen den Elektromagneten gedrückten Position des Rückhaltehebels die äußere Anziehungsfläche (S208) entfernt von der zweiten polaren Fläche (S124) ist.
  9. Mechanismus nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der nichtmagnetische Teil des Elektromagneten eine Hülle (104) umfasst, die die Führungsfläche (S144) umfasst, und die aus Polymermaterial besteht, das auf den ferromagnetischen Kern (102) aufgeformt ist.
  10. Mechanismus nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Elektromagnet im Gehäuse (300) durch die Zusammenarbeit von Formen mit Eingriff eines Zentrierungsstifts (146) in eine Zentrierungsaufnahme (320) gemäß einer Richtung (Z300) des Gehäuses senkrecht zu seiner Längsrichtung (X300) immobilisiert wird.
  11. Mechanismus nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der nichtmagnetische Teil des Elektromagneten eine Hülle (104) umfasst, die die Führungsfläche (S144) umfasst, wobei die Hülle vor ihrer Montage mit dem ferromagnetischen Kern (102) gebildet ist, und dadurch, dass sich eine Menge Polymermaterial (108) um den Kern und die Hülle erstreckt, um den Elektromagnet im Gehäuse (300) zu immobilisieren.
  12. Mechanismus nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Auswahlvorrichtung (400) mindestens zwei Rückhaltehebel (200) umfasst, die auf dem gleichen Längsniveau im Gehäuse (300) angeordnet sind, auf jeder Seite des Elektromagneten (100) gemäß einer Richtung (Y300) senkrecht zur Längsrichtung (X100, X200, X300), und die jeweils mit einer der zwei unteren polaren Flächen (S124) und einer der zwei oberen polaren Flächen (S122) des ferromagnetischen Kerns (102) in Wechselwirkung stehen, und dadurch, dass die Führungsflächen (S144), die jeweils mit einem Rückhaltehebel zusammenarbeiten, auf Teilen (144) des Elektromagneten gebildet sind, die untereinander einteilig sind.
  13. Mechanismus nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Wicklung (106) des Elektromagneten (100) um einen Zwischenteil (120) des ferromagnetischen Kerns (102) gewickelt ist, der der Länge nach zwischen der ersten und zweiten polaren Fläche angeordnet ist, und mit mindestens einer lateralen Seite (120C, 120D) des ferromagnetischen Kerns (102) in Kontakt ist.
  14. Mechanismus nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Fläche (S210) eines ersten längs gerichteten Endes (206) des Rückhaltehebels mit der Führungsfläche (S144) für das Schwenken des Hebels zwischen der entfernten Position und der gedrückten Position zusammenarbeitet, und dadurch, dass in der Betriebskonfiguration des Mechanismus, sich der Rückhaltehebel (200) global vom ersten längs gerichteten Ende (206) nach unten gemäß der Längsrichtung (X100, X200, X300) erstreckt.
  15. Webmaschine vom Typ Jacquard (M), dadurch gekennzeichnet, dass sie einen Fachbildungsmechanismus (7) nach einem der vorhergehenden Ansprüche umfasst.
EP21216581.5A 2020-12-21 2021-12-21 Fachbildungsmechanismus und webmaschine vom typ jacquardwebmaschine, die mit einem solchen mechanismus ausgestattet ist Active EP4015687B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2013853A FR3118070B1 (fr) 2020-12-21 2020-12-21 Mecanisme de formation de la foule et metier a tisser de type jacquard

Publications (2)

Publication Number Publication Date
EP4015687A1 EP4015687A1 (de) 2022-06-22
EP4015687B1 true EP4015687B1 (de) 2023-10-18

Family

ID=74669101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21216581.5A Active EP4015687B1 (de) 2020-12-21 2021-12-21 Fachbildungsmechanismus und webmaschine vom typ jacquardwebmaschine, die mit einem solchen mechanismus ausgestattet ist

Country Status (7)

Country Link
US (1) US11702771B2 (de)
EP (1) EP4015687B1 (de)
KR (1) KR20220089672A (de)
CN (1) CN114645362A (de)
FR (1) FR3118070B1 (de)
PT (1) PT4015687T (de)
TW (1) TW202233922A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7477372B2 (ja) * 2020-06-04 2024-05-01 津田駒工業株式会社 織機
JP7401397B2 (ja) * 2020-06-04 2023-12-19 津田駒工業株式会社 織機
JP7384747B2 (ja) * 2020-06-04 2023-11-21 津田駒工業株式会社 織機

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH473251A (de) * 1967-04-21 1969-05-31 App Fabrik Ag Verfahren zum Betätigen von Platinen einer Jaquardmaschine oder von Stanznadeln einer Jaquardkartenschlagmaschine
FR2249196B1 (de) * 1973-10-29 1977-05-27 Verdol Sa
GB8827141D0 (en) * 1988-11-21 1988-12-29 Bonas Machine Co Heald control device
GB8902849D0 (en) * 1989-02-09 1989-03-30 Bonas Machine Co Heald rod retention system for use with an electronic jacquard system
US5275211A (en) * 1990-09-07 1994-01-04 Karl Mayer Textilmaschinenfabrik Gmbh Electromagnetically activated jacquard control arrangement
DE4116164A1 (de) * 1991-03-13 1992-09-17 Textilma Ag Fachbildevorrichtung fuer eine textilmaschine
FR2752246B1 (fr) 1996-08-06 1998-10-09 Staubli Lyon Procede et dispositif de selection des crochets mobiles d'un mecanisme de formation de la foule et metier a tisser du type jacquard
FR2756574B1 (fr) 1996-11-29 1999-01-08 Staubli Lyon Dispositif de selection, mecanique d'armure a trois positions et metier a tisser equipe d'une telle mecanique d'armure
FR2767843B1 (fr) 1997-09-01 1999-10-22 Staubli Lyon Dispositif de selection, mecanique d'armure a trois positions et metier a tisser equipe d'une telle mecanique d'armure
FR2846343B1 (fr) 2002-10-25 2004-12-17 Staubli Lyon Mecanisme de formation de la foule et metier a tisser equipe d'un tel mecanisme
FR2873131B1 (fr) 2004-07-19 2006-09-08 Staubli Lyon Sa Mecanisme de formation de la foule, mecanique d'armure a trois positions et metier a tisser equipe d'une telle mecanique
FR2900666B1 (fr) * 2006-05-03 2008-06-20 Staubli Lyon Soc Par Actions S Mecanisme de formation de la foule, metier a tisser equipe d'un tel mecanisme et procede de selection des crochets mobiles d'un tel mecanisme

Also Published As

Publication number Publication date
US11702771B2 (en) 2023-07-18
FR3118070A1 (fr) 2022-06-24
CN114645362A (zh) 2022-06-21
EP4015687A1 (de) 2022-06-22
US20220195641A1 (en) 2022-06-23
KR20220089672A (ko) 2022-06-28
PT4015687T (pt) 2023-10-30
FR3118070B1 (fr) 2022-12-23
TW202233922A (zh) 2022-09-01

Similar Documents

Publication Publication Date Title
EP4015687B1 (de) Fachbildungsmechanismus und webmaschine vom typ jacquardwebmaschine, die mit einem solchen mechanismus ausgestattet ist
EP0444971B1 (de) Verfahren und Vorrichtung zur Verbundelement-Herstellung aus widerstandsfähigen Fasern
EP1741815B1 (de) Device for connecting elements of a shed forming device, the method of making this device and the method of connecting such a device
EP0823501B2 (de) Verfahren und Vorrichtung zur Wahl der beweglichen Haken einer Fachbildungsvorrichtung sowie Jacquardwebmaschine
EP0036830B1 (de) Rotationsschaftmaschinen für Webmaschinen
EP1413657B1 (de) Fachbildungsmechanismus und Webmaschinen mit einem solchen Mechanismus
EP4015686B1 (de) Fachbildungsmechanismus und webmaschine vom typ jacquardwebmaschine, die mit einem solchen mechanismus ausgestattet ist
EP0947620B2 (de) Verfahren zur Herstellung einer Weblitze, Weblitze und Fachbildungsvorrichtung für eine Webmaschine
EP0933456B1 (de) Verfahren zum Befestigen einer Harnischkordel, Fachbildungsvorrichtung und Webmaschine
EP1852531B1 (de) Mechanismus zur Bildung des Webfachs, mit einem solchen Mechanismus ausgestattete Webmaschine und Verfahren zur Auswahl der beweglichen Haken in einem solchen Mechanismus
EP1619279B1 (de) Fachbildemechanismus, Dreipositions-Fachbildemechanismus und Webmaschine mit einem solchen Fachbildungsmechanismus
EP0926281B1 (de) Verriegelungsmechanismus eines elektrischen Drehaktuators für die Fachbildung in einer Webmaschine, Fachbildungsvorrichtung und Webmaschine
FR2482985A1 (fr) Dispositif de commande pour la roue dentee d'entrainement d'un porteur de fil de trame d'une machine a tisser sans navette
FR2770541A1 (fr) Dispositif d'accrochage d'une lisse a un cordon, lisse de metier a tisser comprenant un tel dispositif d'accrochage et metier a tisser equipe d'une telle lisse
FR2823369A1 (fr) Declencheur electromagnetique comportant un circuit electromagnetique reposant sur un socle deformable elastiquement et declencheur electromagnetique comprenant une bobine flottante
FR2629480A1 (fr) Metier a tisser a ratiere
FR3105271A1 (fr) Métier à tisser du velours
WO2024042294A1 (fr) Metier a tisser et procede de fabrication d'un tissu en forme
EP0084471B1 (de) Schnelldrehende schützenlose Webmaschine
FR3060444A1 (fr) Produit calandre comprenant une matrice et un tissu et pneumatique dote d'un tel produit
BE341300A (de)
FR2521598A1 (fr) Dispositif casse-fil sur metier a filer et a retordre
CH415490A (fr) Procédé de réalisation de liages gaze sur des tissus et dispositif pour la mise en oeuvre du procédé
BE514537A (de)
BE352948A (de)

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

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

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

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

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20221124

RBV Designated contracting states (corrected)

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

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: D03C 3/20 20060101AFI20230421BHEP

INTG Intention to grant announced

Effective date: 20230519

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

Effective date: 20230724

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

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

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Ref document number: 4015687

Country of ref document: PT

Date of ref document: 20231030

Kind code of ref document: T

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20231024

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602021006008

Country of ref document: DE

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

Ref country code: PT

Payment date: 20231205

Year of fee payment: 3

Ref country code: FR

Payment date: 20231227

Year of fee payment: 3

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20231018

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

Ref country code: BE

Payment date: 20231227

Year of fee payment: 3

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1622545

Country of ref document: AT

Kind code of ref document: T

Effective date: 20231018

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

Ref country code: NL

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

Effective date: 20231018

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

Ref country code: GR

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

Effective date: 20240119

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

Ref country code: IS

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

Effective date: 20240218

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

Ref country code: LT

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

Effective date: 20231018

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

Ref country code: AT

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

Effective date: 20231018

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

Ref country code: ES

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

Effective date: 20231018

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

Ref country code: LT

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

Effective date: 20231018

Ref country code: IS

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

Effective date: 20240218

Ref country code: GR

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

Effective date: 20240119

Ref country code: ES

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

Effective date: 20231018

Ref country code: BG

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

Effective date: 20240118

Ref country code: AT

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

Effective date: 20231018

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

Ref country code: DE

Payment date: 20231229

Year of fee payment: 3

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

Ref country code: SE

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

Effective date: 20231018

Ref country code: RS

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

Effective date: 20231018

Ref country code: PL

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

Effective date: 20231018

Ref country code: NO

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

Effective date: 20240118

Ref country code: LV

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

Effective date: 20231018

Ref country code: HR

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

Effective date: 20231018

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

Ref country code: TR

Payment date: 20240118

Year of fee payment: 3

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

Ref country code: DK

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

Effective date: 20231018

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602021006008

Country of ref document: DE

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

Ref country code: CZ

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

Effective date: 20231018

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

Ref country code: SK

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

Effective date: 20231018

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

Ref country code: SM

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

Effective date: 20231018

Ref country code: SK

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

Effective date: 20231018

Ref country code: RO

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

Effective date: 20231018

Ref country code: IT

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

Effective date: 20231221

Ref country code: EE

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

Effective date: 20231018

Ref country code: DK

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

Effective date: 20231018

Ref country code: CZ

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

Effective date: 20231018

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

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

Ref country code: LU

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

Effective date: 20231221

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

Ref country code: MC

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

Effective date: 20231018

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

Ref country code: MC

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

Effective date: 20231018

Ref country code: LU

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

Effective date: 20231221