EP3228739B1 - Moyens de connexion pour connecter amovible des éléments d'un système de positionnement de fils de chaîne sur un métier à tisser - Google Patents

Moyens de connexion pour connecter amovible des éléments d'un système de positionnement de fils de chaîne sur un métier à tisser Download PDF

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Publication number
EP3228739B1
EP3228739B1 EP17164828.0A EP17164828A EP3228739B1 EP 3228739 B1 EP3228739 B1 EP 3228739B1 EP 17164828 A EP17164828 A EP 17164828A EP 3228739 B1 EP3228739 B1 EP 3228739B1
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EP
European Patent Office
Prior art keywords
coupling
connection means
elastically deformable
coupling part
receiving space
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EP17164828.0A
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German (de)
English (en)
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EP3228739A2 (fr
EP3228739A3 (fr
Inventor
Frederik DE MEDTS
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Vandewiele NV
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Vandewiele NV
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Publication of EP3228739A3 publication Critical patent/EP3228739A3/fr
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types
    • D03C3/40—Constructions of lifting-cords

Definitions

  • This invention relates to a set of coupling parts for detachably connecting elements of a warp yarn positioning system on a weaving loom comprising. a first coupling part comprising first connection means and a second coupling part comprising second connection means which are not connectable with said first connection means, and further comprising an adaptor comprising
  • the invention also relates to a warp yarn positioning system comprising a number of motion-inducing devices and means for transmitting motion from each motion-inducing device to a respective number of warp yarns during a weaving process on a weaving loom, said means for transmitting motion comprising a first element connected to a first coupling part comprising first connection means, and a second element connected to a second coupling part comprising second connection means which are not connectable with said first connection means.
  • Known warp yarn positioning systems typically comprise a Jacquard machine comprising a plurality of hooks which are moveable up and down by means of knives in order to position the warp yarns in successive sheds during successive weft insertion cycles on a weaving machine.
  • the positions of the warp yarns in the successive weaving cycles are predetermined in accordance with the weave structure of the fabric that is to be woven.
  • Each hook is connected to a jacquard lifting cord.
  • Each warp yarn extends through an eye of a heddle in a harness of the weaving machine and each heddle is connected to a respective harness cord.
  • first and second interconnectable connection parts In order to detachably connect each jacquard lifting cord with one or more harness cords, it is known to use first and second interconnectable connection parts.
  • the first coupling parts are attached to a jacquard lifting cord and the second coupling parts are attached to one or more harness cords.
  • the first and second coupling parts are designed to be coupled in a detachable manner.
  • connection and disconnection are used in the sense that the coupled elements can be disconnected without the use of tools, for example by applying a pulling force which draws the coupling parts away from one another or by a mutual rotation of the coupling parts, or by a mutual rotation followed by a pulling force.
  • the connection and disconnection preferably can be carried out manually in a swift and easy manner.
  • the wording 'warp yarn positioning system' is used in a broad sense, referring to all means contributing to the positioning of the warp yarns on a weaving loom.
  • the harness cords and the coupling parts connected or connectable thereto are thus also parts - or elements - of such a warp yarn positioning system.
  • a Jacquard machine comprises a large number of lifting devices for lifting warp yarns.
  • a large number of jacquard lifting cords have to be connected with harness cords. This is a very time-consuming operation with long idling periods of the weaving machines and a proportional loss of productivity as a consequence.
  • various types of connecting means were developed. It is important that a reliable connection can be realized by means of these connecting means. Moreover these connecting means should be of a simple construction and be easily to manipulate.
  • a first and a second known set of coupling parts - described in EP 1361302 B1 and WO2013/128275A9 - each comprise two interconnectable coupling parts connectable with a respective cord of a Jacquard machine, a male coupling part comprising an inserting member having an elastically deformable head, and a female coupling part comprising a receiving space for this head and a passage through which the receiving space is accessible, such that the head, compressed in a radial direction, may be shifted through said passage until it is situated in the receiving space, and such that the head in the receiving space can adopt a larger radial dimension than in its compressed state.
  • the receiving space and the head are designed in such a manner that the inserting member may be rotated around its longitudinal axis in order to bring the head from a coupling position in which it is retained in the receiving space into a disengaging position in which it is not retained, and vice-versa.
  • the receiving space comprises, beyond the passage, an axially displaceable uncoupling body with an opening, and the head situated beyond the passage can be displaced into said opening, and said opening is designed to then deform the head in such a manner that it can be introduced into the passage in order to uncouple the coupling parts.
  • a male coupling part of the first set and a female coupling part of the second set are not connectable. Also, a male coupling part of the second set cannot be connected with a female coupling part of the first set of known coupling parts.
  • a third set of connecting means is known from European patent EP 0 788 562 B1 .
  • One coupling part comprises an elongated inserting part, which ends in a radially enlarging head, while the other coupling part comprises a pair of co-acting springy clamping fingers designed to be pushed away from one another through the head and to spring back once the head has passed the clamping fingers. This head is then retained in an axial direction by the springy clamping fingers springing back, so that the connecting means are coupled.
  • the clamping fingers should be pushed away from one another by means of a slidable sleeve, so that the head may subsequently be drawn from its position between the clamping fingers.
  • One coupling part comprises a number of flexible projections, acting as coupling elements, while the other coupling part comprises an equal number of recesses.
  • the flexible projections may be shifted towards the recesses and eventually spring back into these recesses. Then the connecting means are in a coupled position.
  • the coupling parts belonging to different sets of coupling parts cannot be connected.
  • a Jacquard machine provided with coupling parts belonging to one set of coupling parts has to be prepared for cooperation with a harness provided with coupling parts belonging to another set of coupling parts.
  • the jacquard machine is provided with male coupling parts of the above-mentioned second known set of coupling parts (according to WO 2013/128275 A9 ) and the harness is provided with female coupling parts of the above-mentioned first known set of coupling parts (according to EP 0 788 562 B1 ).
  • the aim of the present invention is to provide more sustainable connecting means providing a less time-consuming solution to the above-mentioned problem while a speedy and reliable connection remains possible and without concessions regarding the efficiency and the adaptability of the warp yarn positioning system.
  • the term 'elastically deformable' is used in the sense that at least a part of the element concerned (i.e. at least a part of the coupling portion or the head) is deformable by applying a force to it and that the deformation at least partly disappears after removal of the force.
  • Elements of which the deformation is partly elastic and partly permanent are thus also considered to be 'elastically deformable'.
  • An element is considered to be deformable when its size and/or its shape can be changed by applying a force to it.
  • the first connecting means may be withdrawn freely from the second connecting means. Because of this, a particular user-friendly set of connecting means is obtained.
  • the coupling portion also is less subject to creep and it can be manufactured in a lighter and less expensive material.
  • a warp yarn positioning system including motion transmitting elements which have to be connected with one another, but are provided with respective coupling parts which are not interconnectable, can be carried out more quickly.
  • the adaptor is connectable to the elements in a speedy and reliable way, and the adaptability of the system is also guaranteed as at least one of the connections between the adaptor and the elements is a detachable connection.
  • the third connection means comprises retaining means for retaining a coupling head and the fourth connection means comprises an elastically deformable coupling head.
  • the adaptor is provided to couple two coupling parts belonging to different sets of coupling parts for connecting cords of a warp yarn positioning system on a weaving loom.
  • the coupling portion preferably is elastically deformable so that its radial dimension can be reduced.
  • the elastically deformable coupling portion comprises an elongate insertion member terminating in a larger head which is elastically deformable.
  • the head preferably has a non-circular cross-section.
  • the adaptor preferably comprises third connection means comprising a receiving portion designed to receive and retain an elastically deformable coupling portion of the first connection means of the first coupling part, and fourth connection means comprising an elastically deformable coupling portion designed to be received and retained in a receiving portion of the second connection means of the second coupling part.
  • the receiving portion comprises a receiving space and a passage through which the elastically deformable coupling portion in a radially compressed state is moveable to said receiving space, the elastically deformable coupling portion in this receiving space having the possibility to adopt a larger radial dimension than in said compressed state such that it is retained in the receiving space.
  • the passage for example is designed to allow the head through in the deformed state on account of a coupling force. Beyond this passage, the coupling portion reaches the receiving space in which it is allowed to return to a state with a larger transverse dimension so that it is detained there and the connection means are connected.
  • the receiving portion and the elastically deformable coupling portion are designed such that the coupling portion received in the receiving portion may be rotated about its longitudinal axis in order to be brought from a coupling position in which it is retained in the receiving portion into a disengaging position in which it is not retained in the receiving portion, and vice-versa.
  • the head preferably has a non-circular cross-section and may for example be arrow-shaped.
  • These coupling parts may be carried out being compact in the transverse direction (e.g. with a maximum diameter of 6 mm). Therefore these connecting means allow for a large number of hooks and are also easy to disconnect.
  • a simple rotating movement (around the longitudinal axis) of the coupling parts with respect to one another will do to bring the coupling portion into its disconnecting position. As during this rotation, the coupling element remains in the receiving part, this rotation may occur without any deformation of the coupling element. This also is in favour of a speedy disconnection without any problems.
  • the passage is designed to let pass the elastically deformable coupling portion in a substantially non-deformed state when the coupling portion is rotated into said disengaging position.
  • the elastically deformable coupling portion is designed such that it comprises at least one radially projecting bumper edge
  • the receiving portion comprises at least one retaining edge provided for retaining at least one bumper edge of the elastically deformable coupling portion situated in the receiving space in order to prevent disconnection of the connection means
  • the elastically deformable coupling portion and the receiving portion are carried out such that the coupling means in the receiving space may be brought from a coupling position in which at least one bumper edge is retained by a retaining edge into a disengaging position in which not any bumper edge is retained by a retaining edge so that said disconnection is no longer prevented.
  • the elastically deformable coupling portion comprises two radially projecting flanks with respective end faces, forming two radially projecting bumper edges, and the receiving space is delimited by a side wall in which two windows are provided, such that a respective flank of the elastically deformable coupling portion may be situated in each window and an edge of each window acts as a retaining edge for said bumper edges of the elastically deformable coupling portion.
  • the receiving portion is provided with at least one cam, preventing a rotating movement around the longitudinal axis of the one connection means with respect to the other when the connection means have been connected. Because of this, bringing the elastically deformable coupling portion of the first connection means into the disconnecting position by simply rotating the first connection means with respect to the second connection means is made impossible. To disconnect the connection means an additional operation is required.
  • each window preferably comprises a first edge part, acting as a retaining edge and which is changing stepwise into a second edge part, so that this step will form said cam, by which a rotation of the connection means with respect to one another is prevented.
  • At least one of the coupling parts may be provided with a springy element, which exercises a spring force on the other coupling part, which pushes the coupling pats, coupled with respect to one another, into the disconnecting direction.
  • the receiving portion comprises, beyond said passage, an axially displaceable uncoupling body comprising an opening into which the coupling portion can be introduced when it is in the receiving space, and in that said opening is designed to deform the coupling portion introduced in the opening in such a manner that it can be withdrawn from the receiving space via the passage in order to disconnect the connection means.
  • one pair of cooperatable connection means is designed to realize a non-detachable connection. This can be done by omitting the uncoupling body in the embodiment according to the preceding paragraph of this description.
  • the first coupling part and the second coupling part for example belong to a different set of interconnectable coupling parts.
  • the adaptor comprises an elongate body having two opposing ends, said body terminating in an elongate inserting member with an elastically deformable head at one end, and terminating in a hollow portion delimited by a side wall defining a receiving space and a passage at the other end, the inserting member and the hollow portion forming said coupling portion and said receiving portion respectively.
  • each coupling part comprises means for connecting the coupling part with one or more respective cords, or is connected to one or more respective cords of the warp yarn positioning system.
  • the coupling parts may be made, at least partly, of synthetic material and comprise one of more respective cords, extruded into the synthetic material.
  • the invention can be used in a warp yarn positioning system having the features mentioned in the second paragraph of this description, wherein the means for transmitting motion further comprise an adaptor comprising third connection means connected with the first connection means, and fourth connection means connected with the second connection means, so that the adapter is connected to said first coupling part and to said second coupling part, at least one of the connections being a detachable connection.
  • the first coupling part (10) of the set of coupling parts according to this invention is a coupling part of a first set of interconnectable coupling parts described in the international patent publication WO 2013/128275 A9 .
  • the first coupling part is identical to the male coupling part of this first set of coupling parts and comprises an elongate, substantially cylindrical shaft (11) with a longitudinal axis (A), comprising a first portion (11a) forming one end of the coupling part (10), to which a cord (not shown on figure 1 ) can be attached, and a second portion (11b) having a larger diameter than the first portion (11a).
  • the male coupling part (10) is moulded onto the cord by means of an injection-moulding technique.
  • the second portion (11b) adjoins an inserting member (12) having opposite flattened sides (13) and an elastically deformable head (14).
  • the inserting member extends according to the axis (A) and forms the other end of this first coupling part (10).
  • a crossing recess (15) is provided in the inserting member (12), so that two legs (16), (17) are formed which are separated by the recess (15). Via a stepped widened section, each leg (16), (17) adjoins a respective lateral part (14a), (14b) with two flattened parallel sides and rounded-off lateral flanks which converge symmetrically from the stepped widened section and terminate in a top part (14c).
  • the lateral parts (14a), (14b) and the top part (14c) together form the arrow-shaped head (14) with a respective rear end which forms a transverse retaining surface (14e), (14f) extending in a radial direction due to the stepped widened section, and with a width which gradually decreases from the rear end to its top end.
  • This male coupling part (10) is designed to be connected with an associated female coupling part (not shown of the figures).
  • This coupling part is described below but is not part of the set of coupling parts according to this invention.
  • the associated female coupling part (not part of this invention) comprises a substantially hollow receiving part in which a receiving space for the head of the male coupling part (10) is provided and which is accessible via a passage which is provided from the free end of the female coupling part and ends in the receiving space.
  • the passage extends along the longitudinal axis of the female coupling part and has a substantially cylindrical shape with a conically narrowing inlet at the end of it.
  • An edge situated around the outlet of the passage in the receiving space serves as a retaining means for the head (14).
  • the receiving space is provided with a cylindrical uncoupling body in which a central opening which is likewise cylindrical is provided. This uncoupling body can be displaced along the longitudinal axis of the coupling part in the receiving space.
  • a laterally protruding protuberance (14d) is provided on one of the lateral parts (14a), (14b).
  • the male coupling part (10) is introduced, head (14) first, into the passage of the associated female coupling part via the conical narrowing. This causes the head (14) to deform elastically. The male coupling part (10) is pushed further into this passage until the head has reached the receiving space. In the receiving space, the head (14) assumes a larger transverse dimension.
  • the radially protruding protuberance (14d) of the head (14) comes into contact with the uncoupling body.
  • said protuberance (14d) ensures that the head (14) does not immediately slide into the cylindrical opening of the uncoupling body (16) and is compressed, but a further displacement of the head (14) in the receiving space results, firstly, in that the uncoupling body is moved concomitantly into the vicinity of its end position against the bottom end face of the receiving space.
  • the male coupling part (10) is pushed further in the connection direction until the head (14) is pushed into the cylindrical opening of the uncoupling body, and the front part of the head (14) is situated in a cavity which is provided in the bottom end face of the receiving space.
  • the head (14) is pushed completely into the cylindrical opening of the uncoupling body, so that the head (14) is compressed in the transverse direction.
  • the retaining surfaces (14e), (14f) of the head (14) are situated in the vicinity of and preferably just beyond the top edge of the uncoupling body.
  • the protuberance (14d) In this position, the protuberance (14d) is deformed, and the rebound force of this protuberance (14d) and the associated friction force against the uncoupling body, ensures that when a force is applied in a direction opposite to the insertion direction of the male coupling part, the uncoupling body moves concomitantly until it reaches a position in which it bears against the edge of the female coupling part which serves as retaining means for the head (14).
  • the male coupling part (10) can be pulled out of the female coupling part without any problems as the head can be pulled, in the compressed state, from the opening of the uncoupling body into the passage of the female coupling part.
  • the second coupling part (20) of the set of coupling parts according to this invention is not the associated female coupling part described above, but a female coupling part belonging to a second set of interconnectable coupling parts which is different from said first set and which is described in EP 1361302 B1 .
  • This second coupling part (shown in figure 2 ) is not directly connectable with the first coupling part (10) described above.
  • the second coupling part (20) comprises an elongate body having a hollow cylindrical upper part (21) with an internal space (22) in which an elastically deformable head of a corresponding coupling part (which is not part of the set of coupling parts according to the invention) may be retained, and a lower part (26) with a so-called carbine coupling (27) for attaching one or several harness cords (not represented in figure 2 ).
  • the lower part (26) is made, at least partly, of synthetic material and comprises a number (one of more) of respective cords, extruded into the synthetic material.
  • the head of the corresponding coupling part differs from the head of the first coupling part (10) according to the invention.
  • the internal space (22) of this second coupling part (20) is accessible through a passage (23), which exits at the top end of the second coupling part (20).
  • two windows (24) are provided, situated opposite one another (only one window being visible in figure 2 ).
  • These windows (24) have an upper limiting edge (24a) acting as a retaining edge for retaining the end surfaces of the flanks of the head (described below) of the corresponding coupling element, when this coupling element is situated in the receiving part.
  • This retaining edge (24a) changes stepwise into an edge part (24b) situated lower, so that a cam (24c) is formed.
  • the cam (24c) is provided to prevent rotation of the corresponding connecting means when it is received in the internal space in a position in which the bumper edges are retained by the retaining edge (24a) of the windows (24).
  • This second coupling part (20) is designed to be connected with a corresponding coupling part (not shown of the figures).
  • This corresponding coupling part is described below but is not a part of the set of coupling parts according to this invention.
  • the corresponding coupling part comprises an elongated body having an upper cylindrical part and an inserting part terminating in an elastically deformable head.
  • the head is formed by two flank parts having a respective end surface extending in a radial direction and converging symmetrically from the end surfaces towards a common top part, so that the flank parts and the top part together form an arrow-shaped head, and so that the flanks parts can be placed in a respective window opening of the second coupling part while the end surfaces of the flank parts are retained by a retaining edge (24a) of a respective window.
  • the elastically deformable head of the corresponding coupling part may be brought into the internal space (22).
  • This passage (23) has such lateral dimensions that, when the head is so orientated that its flanks are situated above the windows (24), the head is elastically deformed in such a manner in the passage, so that its radial dimensions are reduced.
  • the head of the corresponding coupling part snap-fits into the internal space (22) of the second connecting means.
  • the second connecting means (20) has a springy lip (25) at the top, which is situated such that it is pushed down by the lower edge of the body of the corresponding coupling part when the coupling parts are coupled.
  • the spring force exerted by this lip (25) pushes the connecting means away from one another in the disconnecting direction, because of which the end surfaces of the flanks are pushed against the retaining edges (24a) and because of which undesired axial movements of the connecting means with respect to one another are prevented.
  • the cam (24c) prevents the two connecting means from being rotated around the longitudinal axis (B) with respect to one another.
  • the adaptor (30) of the set of coupling parts according to this invention is an elongate unit having a longitudinal axis (C) and comprising two adjoining parts (31), (32) extending over a respective portion of the length of it (see figures 3 and 4 ).
  • One part is an elongate inserting member (32) terminating in an elastically deformable head (39) at one end of the adaptor (30), and the other part is a receiving portion (31) comprising a cylindrical hollow portion delimited by a cylindrical side wall (40) defining an internal receiving space (41) which is accessible through a passage (42) extending along the longitudinal axis (C) and debouching at the other end of the adaptor (30).
  • the elongate inserting member (32) of the adaptor (30) is designed to be received and retained in the internal space (22) of the second coupling part (20).
  • the inserting member (32) is identical to the inserting part of the corresponding coupling part of the second set of interconnectable coupling parts.
  • This inserting member (32) has an upper cylindrical part (33) changing into a lower part (34) with smaller lateral dimensions than the upper part (33).
  • this lower part (34) an elongated opening (35) extending according to the longitudinal direction (C) has been provided.
  • a respective flank part (36), (37) has been formed on the lower part (34).
  • These flank parts (36), (37) are projecting in opposite radial directions with respect to the walls of the lower part (34).
  • the flank parts (36), (37) have a respective top surface (36a), (37a) extending in a direction practically across the longitudinal direction (C) of the inserting member.
  • flank parts (36), (37) are narrowing in the direction of the extremity of the inserting member (32) and are merging into a common point (38) which forms the extremity of the inserting member (32), situated beyond the opening (35).
  • the flank parts (36), (37) and the point (38) are made of elastically deformable material and together constitute a whole forming a head (39) having the form of an arrow.
  • the receiving portion (31) of the adaptor (30) is designed to receive and retain the elastic deformable coupling portion (14) of the first coupling part (10).
  • the receiving portion (31) is identical to the receiving part of the associated female coupling part of the first set of interconnectable coupling parts, except for the fact that it does not comprise an uncoupling body.
  • the receiving portion of the adaptor comprises an uncoupling body.
  • the receiving portion (31) comprises a cylindrical hollow portion delimited by a cylindrical side wall (40) defining an internal receiving space (41) which is accessible through a passage (42) extending along the longitudinal axis (C) and debouching at the other end of the adaptor (30).
  • the receiving space (41) is provided to receive and retain the head (14) of the first coupling part (10).
  • This receiving space (41) is accessible via a substantially cylindrical passage (42) having an inlet opening (42a) at one end of the adaptor (30), a conically narrowing access part (42b) and an outlet opening (42c) debouching in the receiving space (41).
  • the passage (42) extends along the longitudinal axis (C) of the receiving portion.
  • the receiving space (41) is wider than the outlet opening (42c) of the passage (42) such that the top wall of the receiving space (41) forms an edge (41a) around the outlet opening (42c) of the passage (42). This edge (41a) serves as a retaining means for the head (14).
  • the uncoupling body is not provided in the receiving space (41). This results in a non-detachable connection of the first coupling part (10) and the adaptor (30).
  • the connection of the adaptor (30) and the second coupling part (20) is a detachable connection
  • the first (10) and second coupling parts (20) still can be connected and disconnected easily.
  • both connections are detachable connections.
  • the connection of the first coupling part and the adaptor is detachable and the connection of the second coupling part and the adaptor is a non-detachable connection.
  • the laterally protruding protuberances (14d) provided on one of the lateral parts (14a), (14b) of the first coupling part (10) have no function.
  • the first coupling part (10) is introduced, head (14) first, into the passage (42) of the receiving portion (31) of the adaptor (30) via the inlet opening (42a) and the conically narrowing access part (42b). This causes the head (14) to deform elastically.
  • the male coupling part (10) is pushed further into this passage (42) until the head (14) has reached the receiving space (41). In the receiving space, the head (14) assumes a larger transverse dimension.
  • the coupling parts (10),(20),(30) of a set of coupling parts according to the invention are represented in a coupled state.
  • the first coupling part (10) comprises an elongate substantially cylindrical shaft (11) and an inserting portion (12).
  • the inserting portion (12) is identical to the inserting portion (12) of the coupling part (10) shown in figure 1 , but the shaft (11) has a slightly different design. Instead of the two portions having different diameters with a stepwise change of the diameter in the embodiment in figure 1 , the shaft (11) of the embodiment of figure 5 has a uniform diameter in the middle and two end parts of which the diameter gradually decreases towards the ends of the shaft (11).
  • the second coupling part (20) is identical the coupling part (20) shown in figure 2 .
  • the adaptor (30) is identical to the adaptor (30) shown in figures 3 and 4 .
  • a Jacquard lifting cord (50) is attached to the free end of the shaft (11), while the other end of the shaft (11) adjoins the inserting member (12).
  • the shaft (11) is moulded onto the cord (50) by means of an injection-moulding technique.
  • the inserting portion (12) of the first coupling part (10) is retained in the receiving portion (31) of the adaptor (30), and the inserting member (32) of the adaptor (30) is retained in the receiving portion (21) of the second coupling part (20), in the way described above.
  • the first (10) and the second coupling part (20) are connected with a Jacquard lifting (50) cord and a harness cord respectively in a Jacquard machine. Only the Jacquard lifting cord (50) is shown in figure 5 .

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Prostheses (AREA)
  • Looms (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Claims (11)

  1. Ensemble de pièces d'accouplement destiné à assembler de façon détachable des éléments d'un système de positionnement de fil de chaîne sur un métier à tisser comprenant une première pièce d'accouplement (10) comprenant des premiers moyens d'assemblage (12) et une deuxième pièce d'accouplement (20) comprenant des deuxièmes moyens d'assemblage (21) qui ne sont pas assemblables avec lesdits premiers moyens d'assemblage (12), et comprenant en outre un adaptateur (30) comprenant
    - des troisièmes moyens d'assemblage (31) conçus pour s'assembler avec les premiers moyens d'assemblage (12) de manière à assembler l'adaptateur (30) à ladite première pièce d'accouplement (10), lesdits premiers (12) et troisièmes (31) moyens d'assemblage formant une première paire de moyens d'assemblage coopérable, et
    - des quatrièmes moyens d'assemblage (32) conçus pour s'assembler avec les deuxièmes moyens d'assemblage (21) de manière à assembler l'adaptateur (30) à ladite deuxième pièce d'accouplement (20), lesdits deuxièmes (21) et quatrièmes (32) moyens d'assemblage formant une deuxième paire de moyens d'assemblage coopérable,
    au moins une desdites paires de moyens d'assemblage coopérable (12, 31), (21, 32) étant conçue pour réaliser un assemblage détachable, caractérisé en ce que, dans au moins une paire de moyens d'assemblage coopérable (12, 31), (21, 32), un moyen d'assemblage comprend une partie d'insertion (12), (32) comprenant une partie d'accouplement déformable élastiquement (14), (39), et l'autre moyen d'assemblage comprend une partie de réception (31), (21) conçue pour recevoir ladite partie d'accouplement déformable élastiquement (14), (39) et pour la retenir dans un état sensiblement non déformé.
  2. Ensemble de pièces d'accouplement selon la revendication 1 caractérisé en ce que l'adaptateur (30) comprend des troisièmes moyens d'assemblage (31) comprenant une partie de réception conçue pour recevoir et retenir une partie d'accouplement déformable élastiquement (14) des premiers moyens d'assemblage (12) de la première pièce d'accouplement (10), et des quatrièmes moyens d'assemblage (32) comprenant une partie d'accouplement déformable élastiquement (39) conçue pour être reçue et retenue dans une partie de réception (21) des deuxièmes moyens d'assemblage (21) de la deuxième pièce d'accouplement (20).
  3. Ensemble de pièces d'accouplement selon la revendication 1 ou 2 caractérisé en ce que, dans au moins une paire de moyens d'assemblage coopérable (12, 31), (21, 32), la partie de réception comprend un espace de réception (41), (22) et un passage (42), (23) à travers lequel la partie d'accouplement déformable élastiquement (14), (39) dans un état comprimé radialement est mobile jusqu'audit espace de réception (41), (22), la partie d'accouplement déformable élastiquement dans cet espace de réception (41), (22) ayant la possibilité d'adopter une dimension radiale plus grande que dans ledit état comprimé de telle sorte qu'elle est retenue dans l'espace de réception.
  4. Ensemble de pièces d'accouplement selon l'une quelconque des revendications 1 à 3 caractérisé en ce que, dans au moins une paire de moyens d'assemblage coopérable (12, 31), (21, 32), la partie de réception (31), (21) et la partie d'accouplement déformable élastiquement (14), (39) sont conçues de telle sorte que la partie d'accouplement déformable élastiquement (14), (39) reçue dans la partie de réception peut être tournée autour de son axe longitudinal (A), (C) afin d'être amenée d'une position d'accouplement dans laquelle elle est retenue dans la partie de réception (31), (21) dans une position de désenclenchement dans laquelle elle n'est pas retenue dans la partie de réception, et vice versa.
  5. Ensemble de pièces d'accouplement selon les revendications 3 et 4 caractérisé en ce que le passage (23), (42) est conçu pour laisser passer la partie d'accouplement déformable élastiquement (14), (39) dans un état sensiblement non déformé quand la partie d'accouplement est tournée dans ladite position de désenclenchement.
  6. Ensemble de pièces d'accouplement selon la revendication 4 ou 5 caractérisé en ce que ladite partie d'accouplement déformable élastiquement (14), (39) comprend au moins un bord de butée faisant saillie radialement (14e, 14f), (36a, 37a), en ce que ladite partie de réception (31), (21) comprend au moins un bord de retenue (24a), (41a) prévu pour retenir au moins un bord de butée de la partie d'accouplement déformable élastiquement située dans l'espace de réception (22), (41) afin d'empêcher le désassemblage des moyens d'assemblage, et en ce que la partie d'accouplement déformable élastiquement et la partie de réception sont réalisées de telle sorte que la partie d'accouplement déformable élastiquement dans l'espace de réception peut être amenée depuis une position d'accouplement dans laquelle au moins un bord de butée est retenu par un bord de retenue dans une position de désenclenchement dans laquelle aucun bord de butée n'est retenu par un bord de retenue de telle sorte que ledit désassemblage n'est plus empêché.
  7. Ensemble de pièces d'accouplement selon la revendication 6 caractérisé en ce que, dans au moins une paire de moyens d'assemblage coopérable (21, 32), la partie d'accouplement déformable élastiquement (39) comprend deux flancs faisant saillie radialement (36, 37) avec des faces d'extrémité respectives (36a), (37a) formant deux bords de butée faisant saillie radialement, et l'espace de réception (22) est délimité par une paroi latérale (29) dans laquelle sont disposées deux fenêtres (24), de telle sorte qu'un flanc respectif (36), (37) de la partie d'accouplement déformable élastiquement (39) peut être situé dans chaque fenêtre (24) et un bord (24a) de chaque fenêtre (24) agit comme un bord de retenue pour lesdits bords de butée (36a), (37a) de la partie d'accouplement déformable élastiquement (39).
  8. Ensemble de pièces d'accouplement selon la revendication 3 et l'une quelconque des revendications 4 à 7 caractérisé en ce que, dans au moins une paire de moyens d'assemblage coopérable (12, 31), la partie de réception (31) comprend, au-delà dudit passage (42), un corps de désaccouplement déplaçable axialement comprenant une ouverture dans laquelle la partie d'accouplement (14) peut être introduite quand elle est dans l'espace de réception (41), et en ce que ladite ouverture est conçue pour déformer la partie d'accouplement (14) introduite dans l'ouverture de telle sorte qu'elle peut être retirée de l'espace de réception (41) par le passage (42) afin de désassembler les moyens d'assemblage (12), (31).
  9. Ensemble de pièces d'accouplement selon l'une quelconque des revendications précédentes caractérisé en ce qu'une paire de moyens d'assemblage coopérable (12, 31) est conçue pour réaliser un assemblage non détachable.
  10. Ensemble de pièces d'accouplement selon l'une quelconque des revendications précédentes caractérisé en ce que l'adaptateur (30) comprend un corps allongé ayant deux extrémités opposées, ledit corps se terminant en un élément d'insertion allongé (32) avec une tête déformable élastiquement (39) à une extrémité, et se terminant en une partie creuse (31) délimitée par une paroi latérale (40) définissant un espace de réception (41) et un passage (42) à l'autre extrémité, l'élément d'insertion (32) et la partie creuse (31) formant respectivement ladite partie d'insertion et ladite partie de réception.
  11. Ensemble de pièces d'accouplement selon l'une quelconque des revendications précédentes caractérisé en ce que la première pièce d'accouplement (10) et la deuxième pièce d'accouplement (20) sont assemblées à une ou plusieurs cordes respectives du système de positionnement de fil de chaîne.
EP17164828.0A 2016-04-07 2017-04-04 Moyens de connexion pour connecter amovible des éléments d'un système de positionnement de fils de chaîne sur un métier à tisser Active EP3228739B1 (fr)

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EP3228739B1 (fr) * 2016-04-07 2021-03-03 Vandewiele NV Moyens de connexion pour connecter amovible des éléments d'un système de positionnement de fils de chaîne sur un métier à tisser

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BE1008504A5 (nl) * 1994-07-18 1996-05-07 Wiele Michel Van De Nv Beveiligende inrichting voor het snel verbinden van harnaskoorden met hefkoorden op een weefmachine.
FR2726010B3 (fr) 1994-10-24 1996-08-30 Staubli Sa Ets Collet demontable pour harnais de mecaniques jacquard
DE29801698U1 (de) 1997-11-19 1998-04-16 Textilma Ag Schnellverbinder zum Verbinden der Strupfe mit mindestens einer Harnischschnur
BE1014814A5 (nl) * 2002-05-06 2004-04-06 Wiele Michel Van De Nv Verbindingsmidelen voor het losneembaar verbinden van koorden van een jacquardmachine.
CZ13055U1 (cs) * 2002-11-12 2003-03-03 Tre, S.R.O. Spojovací element spodního kladkového závěsu a galírovacích šňůr
BE1020551A3 (nl) * 2012-03-01 2013-12-03 Wiele Michel Van De Nv Inrichting voor het losneembaar verbinden van elementen voor het positioneren van kettinggarens op een weefmachine.
EP3228739B1 (fr) * 2016-04-07 2021-03-03 Vandewiele NV Moyens de connexion pour connecter amovible des éléments d'un système de positionnement de fils de chaîne sur un métier à tisser

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CN107268140B (zh) 2020-12-22
EP3228739A2 (fr) 2017-10-11
EP3228739A3 (fr) 2018-02-28
CN107268140A (zh) 2017-10-20
CN207210630U (zh) 2018-04-10

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