EP2356271B1 - Heddle - Google Patents

Heddle Download PDF

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Publication number
EP2356271B1
EP2356271B1 EP09837230.3A EP09837230A EP2356271B1 EP 2356271 B1 EP2356271 B1 EP 2356271B1 EP 09837230 A EP09837230 A EP 09837230A EP 2356271 B1 EP2356271 B1 EP 2356271B1
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EP
European Patent Office
Prior art keywords
heddle eyelet
eyelet
heddle
inserted heddle
carrier part
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EP09837230.3A
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German (de)
English (en)
French (fr)
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EP2356271A2 (en
Inventor
Bram Vanderjeugt
Frank Deleu
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Individual
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Individual
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Publication of EP2356271A2 publication Critical patent/EP2356271A2/en
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Publication of EP2356271B1 publication Critical patent/EP2356271B1/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds
    • D03C9/024—Eyelets
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds
    • D03C9/04—Metal healds

Definitions

  • the invention relates to a heddle, comprising
  • heddles are used to position warp yarns during shed formation by imposing a movement on the heddle.
  • the heddle is provided with a heddle eyelet through which a warp yarn extends.
  • a heddle can be a jacquard heddle. Therewith, this is mostly connected at one end to a harness cord, and at the other end connected to a return spring, wherein the harness cord can take up a number of positions by the movement of one or more hooks of a jacquard device, and wherein a blade set takes along with it the hooks, and hence also the heddle and the harness cord, wherein in an upward movement, while return springs pull the hook, heddle and harness cord down again together with the downward movement of the blade, and wherein the return spring is connected at the other end to the base or frame of the weaving machine.
  • the movement imposed on the heddle can also be realised by moving a plurality of heddles up and down at the same time.
  • a plurality of heddles can each be connected by a respective harness cord to the same hook or to the same set of hooks of a jacquard device, or a plurality of heddles can be installed in a weaving frame, wherein the weaving frame is moved by a drive and selection device between 2 or more positions in height direction in order to form a desired pattern in a fabric or fabric structure.
  • This latter method is commonly used for controlling warp yarns in ground threads of pile fabrics or for controlling pile warp yarns in pile fabrics or of warp yarns in flat fabrics in combination with a cam disc machine or a dobby device when a limited patterning is required.
  • double-face pile weaving namely, all types of pile warp yarns that can be colour or pattern forming in the fabric are generally provided in each warp system, wherein the colour or pattern forming pile warp yarn extending between the upper and lower fabric and binding in each of these fabrics over a weft yarn, while the non-colour or pattern forming pile warp yarns are concealed as dead pile in the ground fabric of one of both fabrics.
  • lancets are deployed in many cases in the shed formation zone, either as spacers or as carriers of loop weft yarns. These lancets in turn take their place in weft direction in the available space per warp system. The warp yarns and heddles can thus also collide with these lancets during shed formation.
  • heddles were manufactured from wire material, wherein generally 2 wires were deployed next to one another and with a heddle eyelet being formed in the middle zone of the heddle. A warp yarn then extends through this heddle eyelet. The 2 wires are connected to one another at a number of places outside the heddle eyelet.
  • This embodiment has the advantage that the heddle can be produced inexpensively, and that due to the limited dimensions of the wire material there is adequate free space for neighbouring warp yarns and lancets outside the heddle eyelet.
  • the formed heddle eyelet is distorted as a result of a collision with the neighbouring warp yarn package, the parts outside the heddle eyelet still allow sufficient passage for the neighbouring warp yarns and any lancet present.
  • This embodiment however has the disadvantage that the wire in the heddle eyelet is not particularly suitable for withstanding the wear caused by the warp yarn passing through it.
  • the thickness of the heddle eyelet is also limited to the thickness of the wire.
  • the joints of the 2 wires outside the heddle eyelet are not always resistant to the effect of the warp yarns and to the action of lancets moving along the heddle.
  • a wear-resistant inserted eyelet that is inserted into a space formed in the 2 wires and that is normally connected to these wires by means of a soldering process.
  • the resistance to wear of the heddle eyelet to the warp yarn has increased significantly.
  • the nearby warp yarns, the adjacent heddles and the neighbouring lancets collide with this connection and the inserted eyelet comes loose from the heddle.
  • strip material is generally commercially available steel with a limited thickness and with a width sufficient to allow the application of an opening as heddle eyelet.
  • material is taken away above and below the heddle eyelet in order to limit the weight and to create more space for the nearby yarns, heddles and any lancets present.
  • the removal of this material is an expensive production step that has the further disadvantage that after removal of the material above and below the heddle eyelet, a great deal of refinishing is necessary in order to give the machined sides smooth transitions so that the warp yarns moving along these sides are not hindered in their movement or are not damaged.
  • heddles are manufactured from commercially available strip material in which in the middle openings are provided as heddle eyelet. Therefore, no additional finishing is necessary to realise smooth transitions because these have been realised during the production process of the commercially available material and are retained.
  • the necessary width of the strip material is quite considerable, the eyelet thickness is limited, offering limited resistance to wear against the action of the yarn that moves through the heddle eyelet.
  • the width of the deployed strip material can be limited again by carrying out additional machining at the opening made for the heddle eyelet in order to realise the heddle eyelet and to adapt the form of the heddle (by, for example, twisting the strip material) so that the movement of the neighbouring warp yarns and lancets from above the heddle eyelet to below the heddle eyelet or vice versa can take place more quickly.
  • Such solutions are described, inter alia, in US 5,348,055 and GB 448 723 .
  • the twisting of the strip material has to take place at quite a large distance from the heddle eyelet in order not to distort the eyelet.
  • the heddle eyelet part is fairly large.
  • the one starting material involves a compromise with respect to the wear resistance in the eyelet part, and the whole heddle is quite large with a significant weight as a result.
  • this embodiment results in a heddle eyelet with a more limited thickness and hence a limited resistance to wear.
  • the thickness of the heddle eyelet is smaller than the thickness of the wire.
  • the eyelet has to have a significant thickness so that, if the wire has to extend outside the heddle eyelet, the thickness of the wire has to be quite significant. This pushes up both the cost price and the weight of the heddle.
  • the thick wire also leads to the fact that the free space for positioning a package of heddles with the corresponding warp yarns and lancets is limited.
  • EP 1 908 863 then again presents a heddle that is manufactured from a fibre-reinforced polymer material as carrier wherein a heddle eyelet is inserted into a hard material and is glued to the reinforcing fibres with a synthetic resin.
  • a heddle eyelet is inserted into a hard material and is glued to the reinforcing fibres with a synthetic resin.
  • all the neighbouring heddles, warp yarns and lancets are passed along the heddle eyelet as much as possible.
  • the fibre package within the polymer material is distributed over 4 corners of the heddle eyelet in grooves in the heddle eyelet.
  • a wire-shaped heddle wherein an inserted heddle eyelet is deployed.
  • the inserted heddle eyelet is constrained in a wire part.
  • the inserted heddle eyelet has a notch at its upper and lower end in which the wire parts come to rest when they are twisted together.
  • the wire part is laid against the front and rear side of the inserted heddle eyelet.
  • the resulting heddle is immersed in a tin bath in order to connect the wire part to the inserted heddle eyelet.
  • the object of the invention is consequently to provide a heddle that does not exhibit the said disadvantages of the prior art, that also offers sufficient resistance to the action of neighbouring warp yarns, heddles, and lancets, wherein the weight of the heddle remains limited and the volume taken up by the heddle parts outside the heddle eyelet, namely between the heddle eyelet and the connection of the heddle to the rest of the weaving loom, remains limited, wherein furthermore the heddle eyelet offers good resistance to wear against the action of the threaded warp yarn, and wherein operations are not necessary to connect the wire part at the inserted heddle eyelet with this inserted heddle eyelet.
  • the inserted heddle eyelet When a heddle is considered with an inserted heddle eyelet wherein the opening for the passage of warp yarn is viewed from the front (or in other words viewed towards the front surface of the inserted heddle eyelet), and wherein the longitudinal direction of the inserted heddle eyelet extends vertically, then the inserted heddle eyelet exhibits on the left and right (or on the left and right side of the inserted heddle eyelet) an "edge line", each being a line extending essentially vertically that follows the form of the inserted heddle eyelet at the front side of the inserted heddle eyelet and at the same time borders the outer circumference of the inserted heddle eyelet. In the same way the inserted heddle eyelet then also has such an "edge line" on its rear side on both the left and right.
  • the outer circumference of the inserted heddle eyelet is meant the side surfaces of the inserted heddle eyelet, being the surfaces located on the left and right side of the inserted heddle eyelet, or the surfaces best visible in a side view of the inserted heddle eyelet when the longitudinal direction of the same extends vertically.
  • the said edge lines can be regarded as the parting line between the outer circumference and the front side or rear side of the inserted heddle eyelet respectively, so that these edge lines then belong to both this outer circumference and to this front side or rear side respectively.
  • edge zone a zone is meant that is located on the front and/or rear side of the inserted heddle eyelet, that has a limited width, and which follows an edge line mentioned above (see also figure 15 as described in more detail below).
  • the magnitude of this limited width has to be interpreted as, for example, the width of the inserted heddle eyelet on the front and/or rear side at the transition from the part of the carrier part that is in connection with the outer circumference of the inserted heddle eyelet (being the part of the carrier part in which the inserted heddle eyelet is inserted) and the carrier part that extends outside the inserted heddle eyelet when the inserted heddle eyelet is installed in the heddle.
  • the magnitude of this limited width can also be interpreted as the thickness of the carrier material. Consequently for a heddle according to the invention, at least one cross section can be defined perpendicular to the longitudinal direction of this heddle, wherein the carrier part protrudes beyond the edge zone of the heddle in the thickness direction of the heddle.
  • the inserted heddle eyelet can protrude in thickness direction of the inserted heddle eyelet towards the outside of the inserted heddle eyelet with respect to the carrier part with a part of its front side and/or rear side that is located between the edge zone and the opening for the passage of the warp yarn, as is the case in the second and seventh embodiment that are described in more detail below.
  • a heddle according to the invention has a longer lifespan compared with the heddles known from the prior art.
  • the positive effect on the lifespan is greater, the more the transition from the part of the carrier material that extends outside the inserted heddle eyelet towards the part of the carrier material in which the inserted heddle eyelet is inserted is smoother, and also the more the connection between the carrier part and the inserted heddle eyelet lies outside the area of the said neighbouring elements of the weaving machine.
  • the inserted heddle eyelet does not protrude at all with the respect to the carrier part, as shown for example in figures 2a to 2f that are described in more detail below, the inserted heddle eyelet extends completely in a cross section in width direction of the inserted heddle eyelet within the carrier part, both at the part in which the inserted heddle eyelet is inserted and of the part that extends outside the inserted heddle eyelet. In this way the contact of the inserted heddle eyelet with neighbouring elements of the weaving loom such as, amongst others, heddles, warp yarns and lancets is completely avoided.
  • the fact that the outer circumference of the inserted heddle eyelet is at least partially visible when the heddle according to the invention with the inserted heddle eyelet in attached state is viewed from the side indicates that the carrier material does not or practically does not extend over the whole width of the inserted heddle eyelet.
  • the carrier part protrudes over the full height of the inserted heddle eyelet at least at one of the said edge lines beyond the said edge zone when the heddle with the inserted heddle eyelet in the attached state is viewed from the side.
  • the carrier part protrudes at both said edge lines beyond the said edge zone when the heddle with the inserted heddle eyelet in the attached state is viewed from the side.
  • the inserted heddle eyelet can at one or more zones of the carrier part in which the inserted heddle eyelet is inserted at least partially be provided with at least one groove with a form corresponding to the form of the carrier part.
  • a connecting agent between the outer circumference of the inserted heddle eyelet and the carrier part at the transition from the part of the carrier part where the inserted heddle eyelet is inserted towards the part where the carrier part extends outside the inserted heddle eyelet.
  • This connecting agent can be glue, resin, solder, plastic or another known connecting agent.
  • the heddle according to the invention can have an inserted heddle eyelet with constant thickness.
  • the advantage thereof is that the production of the inserted heddle eyelet is simplified.
  • the heddle according to the invention can also have an inserted heddle eyelet with a decreasing thickness from the middle zone of the inserted heddle eyelet where the passage opening for warp yarn is located towards at least a part of the edge zone of the inserted heddle eyelet.
  • the inserted heddle eyelet is carried out such that at the said middle zone it protrudes beyond the carrier part.
  • the inserted heddle eyelet has a thickness at the outer circumference thereof that increases from the lower and/or upper side of the inserted heddle eyelet towards the said middle zone.
  • the advantage of an increasing thickness towards the middle zone of the inserted heddle eyelet is that on the one hand the same thickness of the inserted heddle eyelet can be achieved at the passage opening (and hence the same resistance to wear attained) with a less wide (and hence less hindering) inserted heddle eyelet, while on the other hand if the increase in thickness is very gradual, the changes in direction of the carrier part can also be very gradual so that the impact of this change of direction on neighbouring heddles, warp yarns and lancets that come into contact with it during their movement is more limited.
  • the carrier part can first be constructed from 2 or more metal wires.
  • the carrier material can therewith consist of 2 metal wires that
  • the carrier part therewith consists of 2 metal wires that
  • This embodiment has the advantage that with only 2 metal wires that do not each have to extend along the complete thickness of the inserted heddle eyelet, a heddle can be manufactured that is light and allows a limited material consumption even with inserted heddle eyelets with a greater thickness, and wherein the resistance to the effect of the neighbouring elements of the weaving loom, such as heddles, warp yarns and lancets, is significantly increased compared with the embodiments known from the prior art. Furthermore, when using two-wire material in the same thickness as for heddles according to the prior art, this embodiment allows an inserted heddle eyelet with a greater thickness to be used, thus increasing the resistance to wear from the passage of the warp yarn.
  • the carrier part consists of 2 wires that
  • the carrier material consists of 4 metal wires that meet one another in the carrier parts extending outside the inserted heddle eyelet, and in these parts are completely or partly connected to one another, and that each pair of 2 wires is spread apart at the transition from a said part of the carrier part that extends outside the inserted heddle eyelet towards the part of the carrier part in which the inserted heddle eyelet is inserted, wherein each pair of 2 wires extends along the left-hand side or right-hand side of the inserted heddle eyelet, and wherein in each pair of 2 wires one wire extends along the front side of the inserted heddle eyelet and one wire extends along the rear side of the inserted heddle eyelet.
  • the inserted heddle eyelet in the attached state in the heddle has carrier material at each of its corners that in the thickness direction of the heddle protrudes beyond the edge zone of the inserted heddle eyelet, and wherein the carrier material also protrudes beyond the outer circumference in the width direction of the heddle when the heddle with the attached inserted heddle eyelet is viewed from the front.
  • the metal wires of a pair of the 2 wires that extend along the left-hand side or right-hand side of the inserted heddle eyelet rest substantially against one another in the thickness direction of the heddle.
  • Such an embodiment of a heddle with 4 metal wires has a major advantage with relation to embodiments of a heddle according to the prior art that comprise an inserted heddle eyelet and 2 wires - wherein these wires are connected to one another completely or partly above the inserted heddle eyelet, spread apart at the inserted heddle eyelet and extend around this inserted heddle eyelet, and after the inserted heddle eyelet come together again and are connected to one another completely or partly, wherein each wire protrudes on opposite sides beyond the inserted heddle eyelet - that in this heddle according to the invention the wires have significantly less volume and weight, since when d is the diameter of the wires according to the prior art, the cross section of the carrier part above and below the inserted heddle eyelet of such an embodiment is 2 x ⁇ x d 2 /4 or thus ⁇ x d 2 /2, whereas in an embodiment of a heddle according to the invention with 4 wires these wires have a diameter of d
  • each pair of 2 wires extends along the left-hand side or right-hand side of the inserted heddle eyelet, and wherein per pair of wires, one wire extends along the front side of the heddle eyelet and one wire extends along the rear side of the inserted heddle eyelet with a pronounced intermediate space between the two, the intermediate space being the part of the outer circumference that is visible between the 2 wires extending along the left-hand side or right-hand side of the inserted heddle eyelet.
  • the wires of a pair within the part of the carrier part in which the inserted heddle eyelet is inserted can extend back towards one another over a part of the height of the inserted heddle eyelet until they touch one another again before then being spread apart once more.
  • connection agent located completely inside the envelope of these 4 wires.
  • the carrier material can furthermore be made of two or more strip profiles that rest against one another in one or more parts extending outside the inserted heddle eyelet where they are completely or partly connected together, and between which an inserted heddle eyelet is inserted.
  • a heddle which comprises a carrier part made from strip profiles
  • neighbouring elements of the weaving machine move in a smooth motion along this flat steel carrier material and do not contact the inserted heddle eyelet or the connection between the inserted heddle eyelet and the material of the carrier part when it is installed between the at least 2 strip profiles.
  • the thickness of the carrier material of the carrier part is minimised due to the fact that the thickness of the strip profile employed for this is normally limited in thickness, for example between 0.2 and 0.5 mm.
  • the carrier part therewith consists of 2 strip profiles that are flat steel profiles and which:
  • the outer circumference of the inserted heddle eyelet is located completely between the strip profiles.
  • the outer circumference of the inserted heddle eyelet is located partly between the strip profiles and the inserted heddle eyelet is no longer completely surrounded by the carrier part and is flanked by it, for example, on only one side.
  • This embodiment does, however, still offer a solution to the problems described above of the heddles as known from the prior art due to the fact that the side that is not flanked by the carrier part is practically hidden in the connecting line between the parts of the carrier part extending in longitudinal direction and on that side there are no risky transitions between the carrier part and the inserted heddle eyelet that could result in wear of the inserted heddle eyelet and collision with neighbouring elements of the weaving loom. These risky transitions are hidden here between the carrier parts.
  • the part of the carrier part in which the inserted heddle eyelet is inserted extends around the left-hand side or right-hand side of the inserted heddle eyelet.
  • one or more of the strip profiles have an opening at the said middle zone of the inserted heddle eyelet that adjoins the passage opening of the inserted heddle eyelet.
  • the at least 2 strip profiles can thereby each have a profile on one or more opposite sides extending in the length direction of the strip profile in such a way that each pair has a corresponding form so that they can fit into one another and can thus be connected to one another.
  • the inserted heddle eyelet can thereby have grooves on its outer circumference that have a form corresponding to the said profiles such that one groove fits into a corresponding profile of the said sides and can thus be connected to one another.
  • Such a combination of profile forms and grooves can greatly enhance the securing of the inserted heddle eyelet in the carrier part.
  • the strip profiles can have a slot such that the legs created as a result of the slot are forced apart until after plastic deformation they form an opening that is larger than the said passage opening.
  • a heddle (100) according to the prior art, such as illustrated in figures 1a to 1c , comprises an inserted heddle eyelet (102) with a passage opening (104) for a warp yarn, and a carrier part (103).
  • the carrier part (103) comprises a part (103a) that is in connection with the outer circumference of this inserted heddle eyelet (2) and 2 parts (103b) that extend outside this inserted heddle eyelet (2).
  • the carrier part (103) comprises furthermore 2 wires (131, 132) that are connected above the inserted heddle eyelet (102), and that are spread apart at the transitions from the part (103a) that is in contact with the outer circumference of this inserted heddle eyelet (2) and the 2 parts (103b) that extend outside this inserted heddle eyelet (2) to surround the inserted heddle eyelet (102).
  • These 2 wires (131, 132) thereby completely surround the inserted heddle eyelet (102).
  • a heddle (1) according to the invention comprises an inserted heddle eyelet (2) with a passage opening (4) for a warp yarn, and a metal carrier part (3) provided to hold this inserted heddle eyelet (2). Additional securing means can be employed to secure the inserted heddle eyelet (2) in the carrier part (3).
  • This metal carrier part (3) can thereby consist of both metal wires (31, 32, 33, 34) and strip profiles (35, 36), for example flat steel strips.
  • the carrier part (3) comprises a part (3a) that is in connection with the outer circumference (5) of this inserted heddle eyelet (2) and 2 parts (3b) that extend outside this inserted heddle eyelet (2).
  • the invention relates equally to heddles (1) that have only one part (3b) that extends outside the inserted heddle eyelet (2).
  • the outer circumference (5) of the inserted heddle eyelet (2) has one or more middle zones (2b) at the said passage opening (4), and zones (2a, 2c) located above and below the passage opening (4) respectively.
  • the designations above and below (2) the passage opening (4) therewith apply when the inserted heddle eyelet (2) is installed in the heddle (1) and the heddle (1) is installed in the weaving machine.
  • the inserted heddle eyelet (2) When a heddle (1) is considered with an inserted heddle eyelet (2) wherein the passage opening (4) for the passage of warp yarn is viewed from the front (or in other words, viewed towards the front surface (III) of the inserted heddle eyelet (2)), and wherein the longitudinal direction of the inserted heddle eyelet (2) extends vertically, then the inserted heddle eyelet (2) exhibits on the left and right an edge line, each being a line extending essentially vertically that follows the form of the inserted heddle eyelet (2) on the front side (III) of the inserted heddle eyelet (2) and at the same time borders the outer circumference of the inserted heddle eyelet (2). In the same way the inserted heddle eyelet (2) then also has such an edge line on its rear side (IV) on both left and right.
  • the outer circumference (5) of the inserted heddle eyelet (2) then means the side surfaces of the inserted heddle eyelet (2), being the surfaces located on the sides (I, II) of the inserted heddle eyelet (2), or the surfaces best visible in a side view of the inserted heddle eyelet (2) when the longitudinal direction of the same extends vertically.
  • the said edge lines (501) can be regarded as the parting line between the outer circumference (5) and the front side (III) or rear side (IV) respectively of the inserted heddle eyelet (2), so that these sides (I, II) then belong to both this outer circumference (5) and to this front side (III) or rear side (IV) respectively.
  • edge zone (50) is used to refer to a zone located on the front and/or rear side (III, IV) of the inserted heddle eyelet (2) that has a limited width and which follows a side (I, II) mentioned above (see also figure 15 as described in more detail below).
  • the magnitude of this limited width should be interpreted as the width of the inserted heddle eyelet (2) on the front and/or rear side (III, IV) at the transition from the part of the carrier part (3) that is in connection with the outer circumference (5) of the inserted heddle eyelet (2) and a part that protrudes beyond the inserted heddle eyelet (2) when the inserted heddle eyelet (2) is mounted in the heddle (1) (see, for example, the width at the point indicated with reference number 51 in figure 2f ).
  • the magnitude of this limited width can also be interpreted as the thickness of the carrier material (3).
  • At least one cross section can be defined perpendicular to the longitudinal direction of this heddle (1) wherein the carrier part (3) protrudes in the thickness direction of the heddle (1) with respect to the edge zone (50) of the heddle (1), such as is the case for example in figures 3a and 3c and in figures 8a and 8b .
  • the carrier part (3) can protrude over the full height of the inserted heddle eyelet (2), beyond the edge zone (50) of the inserted heddle eyelet (2).
  • the inserted heddle eyelet (2) such as illustrated in figures 2a to 2f has a constant thickness and the carrier part (3) maintains its position in vertical direction relative to the inserted heddle eyelet (2) outside the transitions from the part (3a) where the connection at the outer circumference (5) of the inserted heddle eyelet (2) to the part (3b) outside the inserted heddle eyelet (2) is made.
  • the carrier part (3) may or may not protrude over the full height of the inserted heddle eyelet (2), beyond the edge zone (50) of the inserted heddle eyelet (2) at the two said sides (I, II).
  • One or more zones of the outer circumference (5) of the inserted heddle eyelet (2) that are in contact with the carrier part (3) can have one or more grooves (6) with a form corresponding to the form of the carrier part (3), so that the carrier part (3) engages well with the inserted heddle eyelet (2) at this point.
  • This can for instance be seen in figures 2a to 2f , figure 5c , figures 7c to 7f , figures 8a and 8b , figures 10a and 10b figures 11c and 11d , figures 12c and 12d , and figures 13b and 13c .
  • the inserted heddle eyelet (2) can be connected to the carrier part (3) by applying connection agent to the outer circumference (5) and/or to the edge zone (50) in such a way that the connection agent does not protrude beyond the heddle (1) outside the carrier part (3) either in front view or in side view.
  • connection agent to the outer circumference (5) and/or to the edge zone (50) in such a way that the connection agent does not protrude beyond the heddle (1) outside the carrier part (3) either in front view or in side view.
  • Glue, polymer, resin, solder or other joining agents known from the prior art can be used as joining agents.
  • the inserted heddle eyelet (2) can have either a constant thickness (as is the case in the first, fourth and seventh embodiment), or a thickness that decreases from the middle zone (2b) where the passage opening (4) is located towards the upper and lower side (2a, 2c) of the inserted heddle eyelet (2).
  • the carrier part (3) can consist of wires (31, 32, 33, 34) with a round, oval, rectangular or any other cross section. Furthermore, this carrier part (3) can also consist of strip profiles (35, 36), for example flat steel strip material.
  • the carrier material (3) consists of 4 wires (31, 32, 33, 34) that in the parts (3b) that are not in contact with the inserted heddle eyelet (2) are connected together over their whole length or a part of their length, and that at the part (3a) that is in contact with the inserted heddle eyelet (2) split in pairs to a respective side (I, II) of the outer circumference (5) of the inserted heddle eyelet (2) that when viewed in the longitudinal direction of the inserted heddle eyelet (2) is located on the side of the inserted heddle eyelet (2).
  • one wire (31, 32) extends herewith along the front side of the heddle and the inserted heddle eyelet (2), and one wire (33, 34) extends along the rear side of the heddle and the inserted heddle eyelet (2).
  • the inserted heddle eyelet (2) has a constant thickness.
  • the outer circumference (5) of the inserted heddle eyelet (2) thereby has 4 grooves (6) whose form corresponds to the form of each of the 4 wires (31, 32, 33, 34) that extend into each of these grooves (6).
  • These grooves (6) are thereby located such that in each cross section perpendicular to the longitudinal direction of the inserted heddle eyelet (2), each of these wires (31, 32, 33, 34) protrudes beyond the edge zone (50) when the heddle (1) with the inserted heddle eyelet (2) in attached state is viewed both from the side and from the front.
  • the inserted heddle eyelet (2) has carrier material (3) at each of its corners in each cross section perpendicular to the longitudinal direction of the inserted heddle eyelet (1) that protrudes beyond the edge zone (50) and beyond the outer circumference (5) of the inserted heddle eyelet (2) when the heddle (1) with the inserted heddle eyelet (2) in attached state is viewed both from the front and from the side.
  • a second embodiment of a heddle (1) according to the invention such as illustrated in figures 3a to 3c differs from the first embodiment in the following points:
  • the front side (III) and the rear side (IV) respectively of the inserted heddle eyelet (2) extend against the part of the incline of the inserted heddle eyelet (2) against which the wire part (3) rests.
  • a third embodiment of a heddle (1) according to the invention differs from the first embodiment as follows: the inserted heddle eyelet (2) has a thickness that decreases from the zone (2a) where the passage opening (4) is located towards the upper and lower side (2a, 2c) of the inserted heddle eyelet (2).
  • a fourth embodiment of a heddle (1) according to the invention such as illustrated in figures 5a to 5c consists of an inserted heddle eyelet (2) that at the outer circumference (5) of which over the whole height of the inserted heddle eyelet (2) has a first groove (6a) that on one side, here the right-hand side (II), of the inserted heddle eyelet (2) extends first from the upper side (2a) towards the middle (2b) of the front side (III) of the inserted heddle eyelet (2), that extends in this middle (2b) towards the rear side (IV) of the inserted heddle eyelet (2) before finally extending from this middle (2b) towards the lower side (2c) of the inserted heddle eyelet (2) on the rear side (IV) of the inserted heddle eyelet (2), and furthermore on the other side, here the left-hand side (I), has a second groove (not visible in the figures) that extends first from the upper side (2a) towards the middle (2b) of the rear side (IV) of the
  • the carrier part (3) thereby consists of 2 wires (31, 32) that consequently
  • the carrier part (3) consists of 2 wires (31, 32) that
  • the outer circumference (5) of the inserted heddle eyelet (2) thereby has 4 grooves (6) on the one side (I) and 2 grooves (6) on the other side (II) which have a form corresponding to the form of each of the 2 wires (31, 32) that each extend into half of these grooves (6).
  • These grooves (6) are therewith located such that with a cross section perpendicular to the longitudinal direction of the inserted heddle eyelet (2), each of these wires (31, 32) protrudes beyond the edge zone (50) when the heddle (1) with the inserted heddle eyelet (2) in the attached state is viewed both from the side and from the front.
  • the inserted heddle eyelet (2) can have both a constant thickness and a thickness that decreases from the zone in which the passage opening (4) for warp yarn is located towards the upper and lower side (2a, 2c) of the inserted heddle eyelet (2).
  • the carrier part (3) consists of 2 flat steel strip profiles (35, 36) that in the parts (3b) extending outside the inserted heddle eyelet (2) rest against one another with their flat side and are completely or partly connected to one another, and are spread apart at the transition from the part (3b) of the carrier part (3) that extends above the inserted heddle eyelet (2) towards the part (3a) of the carrier part (3) that is in contact with the inserted heddle eyelet (2).
  • the one flat steel strip profile (35) therewith extends at the front side (III) of the inserted heddle eyelet (2), while the other flat steel strip profile (36) extends at the rear side (IV) of the inserted heddle eyelet (2) in such a way that the outer circumference (5) of the inserted heddle eyelet (2) is located between these 2 flat steel strip profiles (35, 36).
  • Each of these 2 flat steel strip profiles (35, 36) thereby has an opening (41) provided to adjoin the passage opening (4) for warp yarn provided in the inserted heddle eyelet (2).
  • the inserted heddle eyelet (2) has a constant thickness.
  • a heddle (1) according to the invention can also have an inserted heddle eyelet (2) with an outer circumference (5) that is located only partly between the 2 flat steel strip profiles (35, 36).
  • the connections between the carrier material (3) and the inserted heddle eyelet (2) can therewith be made between the flat steel strip profiles (35, 36) and in this way protected from the actions of neighbouring elements and the contact of these neighbouring elements with the inserted heddle eyelet part of which the outer circumference (5) protrudes beyond the flat steel strip profiles (35, 36) and can have a sufficiently smooth form to minimise the negative effects of this action.
  • the transition from the edge zone (50) towards the outer circumference (5) of the inserted heddle eyelet (2) has 4 grooves (6) whose form corresponds to the form of the profile (351, 352, 361, 362) of each of the flat steel strip profiles (35, 36) that extend into each of these grooves (6).
  • a seventh embodiment of a heddle (1) according to the invention is identical with the sixth embodiment, but with the difference that at the said middle zone (2b), the inserted heddle eyelet (2) protrudes beyond the flat steel strip profiles (35, 36) and that the inserted heddle eyelet (2) has a thickness that decreases from the zone where the passage opening (4) is located towards the edge zone (50) of the inserted heddle eyelet (2).
  • the flat steel strip profiles (35, 36) hereby protrude beyond the edge zone (50) of the inserted heddle eyelet (2) in such a way that with a cross section perpendicular to the longitudinal direction of the inserted heddle eyelet (2)
  • FIG. 9a An eighth embodiment of a heddle (1) according to the invention such as illustrated in figure 9a is identical with the sixth embodiment, but with the difference that the strip profiles (35, 36) are not flat steel, but each has a profile (9a, 9b) on one side (351, 352, 361, 362) wherein at least 2 profiles (9a, 9b) exist that have a corresponding form such that these fit into one another and can thus be secured in one another or be joined to one another.
  • the inserted heddle eyelet (2) thereby has grooves (6a, 6b) on its outer circumference (5) having a form corresponding to the form of the above-mentioned profiles (9a, 9b) (and consequently also have a corresponding form) so that the profile sides of the strip profile (35, 36) fit into these grooves (6a, 6b) and can thus be secured in one another or be connected to one another.
  • connection of the different profiles (6a, 6b, 9a, 9b) can thereby be made by means of clamps or by means of any other connection technique described below.
  • a ninth embodiment of a heddle (1) according to the invention such as illustrated in Figures 10a and 10b is identical with the first embodiment, but with the difference that the wires (31, 33, 32, 34) extend per pair around the outer circumference (5) of the inserted heddle eyelet (2) at the part (3a) where the inserted heddle eyelet (2) is inserted and on one side (I, II) of the outer circumference (5) lie behind one another and thereby practically in contact with one another.
  • the wires (31, 32, 33, 34) have significantly less volume and weight since, when d is the diameter of the wires according to the prior art, the cross section of the carrier part (3) above and below the inserted heddle eyelet (2) of such an embodiment is 2 x ⁇ x d 2 /4 or thus ⁇ x d 2 /2, while with an embodiment of a heddle (1) according to the invention with 4 wires (31, 32, 33, 34), these wires (31, 32, 33, 34) have a diameter of d/2, so that the cross section of the carrier part (3) above and below the inserted heddle eyelet (2) is 4 x ⁇ x (d/2) 2 /4 or thus ⁇ x d 2 /4.
  • the carrier part (3) consists of 2 wires (31, 32) that
  • the inserted heddle eyelet (2) as here illustrated has an elongated oval form with a round upper and lower side (2a, 2c) and has a constant thickness.
  • the edge zone (50) of the outer circumference (5) of the inserted heddle eyelet (2) thereby has 4 grooves (6) with a form corresponding to the form of each of the 2 wires (31, 32), each of which extends into half of these grooves (6).
  • These grooves (6) are thereby such that with a cross section perpendicular to the longitudinal direction of the inserted heddle eyelet (2), each of these wires (31, 32) protrudes beyond the said sides (I, II) when the heddle (1) with the inserted heddle eyelet (2) in attached state is viewed both from the side and from the front.
  • the carrier part (3) extends only on one side (I or II) of the outer circumference (5) of the inserted heddle eyelet (2).
  • This carrier part (3) consists here of 2 flat steel strip profiles (35, 36), wherein the one strip profile (35) extends on the front side (III) of the inserted heddle eyelet (2) and the other strip profile (36) extends on the rear side (IV) of the inserted heddle eyelet (2).
  • the flat steel strip profile (35, 36) follows the course of the side edge and of the edge zone (50) of the inserted heddle eyelet (2) at the passage opening (4) of the inserted heddle eyelet (2) so that it does not lie in front of the passage opening (4) for warp yarns.
  • the inserted heddle eyelet (2) illustrated here has a constant thickness, but can also be designed with a variable thickness.
  • the outer circumference (5) of the inserted heddle eyelet (2) on the side (I or II) along which the carrier part (3) extends thereby has 2 grooves (6) with a form corresponding to the form of the flat steel strip profiles (35, 36) that extend into each of these grooves (6).
  • These grooves (6) are thereby such that, in a cross section in the thickness direction of the inserted heddle eyelet (2), each of these flat steel strip profiles (35, 36) protrudes beyond the said side (I, II) of the outer circumference (5), this when the heddle (1) with the inserted heddle eyelet (2) in attached state is viewed both from the side and from the front.
  • a twelfth embodiment of a heddle (1) according to the invention such as illustrated in figures 13a to 13c is identical with the eleventh embodiment, but with the difference that in the twelfth embodiment a straight, flat steel strip profile is employed that is cheaper.
  • the outer circumference (5) of the inserted heddle eyelet (2) on the side (I or II) along which the carrier part (3) extends thereby has 2 grooves (6) with a form corresponding to the form of the flat steel strip profiles (35, 36) that extend into each of these grooves (6).
  • These grooves (6) are thereby such that, in a cross section in the thickness direction of the inserted heddle eyelet (2), each of these flat steel strip profiles (35, 36) protrudes beyond the said sides (I, II) of the outer circumference (5), this when the heddle (1) with the inserted heddle eyelet (2) in attached state is viewed both from the side and from the front.
  • a thirteenth embodiment of a heddle (1) according to the invention such as illustrated in figure 14 is identical with the first embodiment, but with the difference that the wires (31, 32, 33, 34) of a pair are connected to one another over a part (20) of the height of the inserted heddle eyelet (2).
  • the connection agent may thereby not protrude beyond the outermost edge of the wires (31, 32, 33, 34) when the heddle (1) with the inserted heddle eyelet (2) in attached state is viewed in a cross section in the width direction of the heddle (1) (in the direction E - E as illustrated in figure 14 ).
  • flat steel strip profiles (35, 36) can also be employed in the embodiment according to figure 14 .
  • the two flat steel strip profiles (35, 36) can be connected to one another by welding, for example by resistance welding.
  • the parts (3b) of the strip profiles (35, 36) that extend outside the inserted heddle eyelet (2) can hereby also be connected to one another by welding, or more particularly by resistance welding.
  • a flat steel strip profile (35, 36) can have a width that is larger than the width of the inserted heddle eyelet (2), and in the middle zone (2b) of the inserted heddle eyelet (2) has an opening at the passage opening (4) for warp yarn, but wherein material is removed in the parts (3b) that extend outside the inserted heddle eyelet (2).
  • this connection is effected by means of overmoulding, gluing, welding including spot welding, resistance welding, laser welding, etc., soldering or by means of any other known connection technique. If the wire part (3) consists of metal wires (31, 32, 33, 34), it is also possible to twist these wires together around an axial line coinciding with the longitudinal direction of the heddle (1).

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Details Of Indoor Wiring (AREA)
  • Buckles (AREA)
EP09837230.3A 2008-10-13 2009-10-13 Heddle Not-in-force EP2356271B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2008/0564A BE1018304A3 (nl) 2008-10-13 2008-10-13 Hevel.
PCT/BE2009/000054 WO2010105314A2 (en) 2008-10-13 2009-10-13 Heddle

Publications (2)

Publication Number Publication Date
EP2356271A2 EP2356271A2 (en) 2011-08-17
EP2356271B1 true EP2356271B1 (en) 2015-08-19

Family

ID=40910797

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09837230.3A Not-in-force EP2356271B1 (en) 2008-10-13 2009-10-13 Heddle

Country Status (4)

Country Link
EP (1) EP2356271B1 (zh)
CN (1) CN102177286B (zh)
BE (1) BE1018304A3 (zh)
WO (1) WO2010105314A2 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2584078B1 (de) * 2011-10-21 2015-08-26 Groz-Beckert KG Weblitze mit fadenfreundlichem Fadenauge
EP2730687B1 (de) 2012-11-08 2015-09-16 Groz-Beckert KG Litze für eine Webmaschine, insbesondere eine Rundwebmaschine
CN104711741A (zh) * 2015-04-07 2015-06-17 苏州市晨彩纺织研发有限公司 一种抗磨损综丝
CN106012178A (zh) * 2016-07-26 2016-10-12 江苏工程职业技术学院 一种特殊织物用综框结构

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE93811C (zh) *
GB448723A (en) 1934-02-15 1936-06-15 Comptoir D App Textiles S A R Improvements in weaving loom heddles
JPS57117646A (en) * 1981-01-06 1982-07-22 Kiyoueki Kinzoku Seisakusho Kk Wire heald
CN2167106Y (zh) * 1992-11-24 1994-06-01 河南第二纺织器材厂 钢丝综用综眼
US5348055A (en) 1993-05-06 1994-09-20 Steel Heddle Mfg. Co. Heddle eyelet structure
CH692587A5 (de) * 1997-09-16 2002-08-15 Braecker Ag Stabförmiges Fadenführungselement für Textilmaschinen, insbesondere Weblitze, und Verfahren zur Herstellung desselben.
FR2776676B1 (fr) 1998-03-31 2000-05-26 Staubli Lyon Procede de fabrication d'une lisse, lisse et dispositif de formation de la foule pour metier a tisser
DE19912419B4 (de) * 1999-03-19 2007-04-05 Grob Horgen Ag Weblitze mit im Bereich der Endösen verbreiterter Bandbreite sowie Verfahren zur Herstellung einer Weblitze
CN2386054Y (zh) * 1999-07-30 2000-07-05 王觉悟 钢丝综
CN2545230Y (zh) * 2002-01-31 2003-04-16 刘统新 用于圆织机上的丝综
CN2567244Y (zh) * 2002-07-03 2003-08-20 王觉悟 钢丝综
DE10330304B4 (de) * 2003-06-17 2005-10-27 Groz-Beckert Kg Verbesserte Weblitze
DE102005030632B4 (de) 2005-07-01 2009-07-30 Groz-Beckert Kg Fadenschonende Weblitze
EP1795635B1 (de) * 2005-12-08 2008-09-17 Groz-Beckert KG Weblitze für bandförmige Kettfäden
EP1908863B1 (de) * 2006-10-06 2009-04-08 Groz-Beckert KG Weblitze für Jacquardwebmaschine

Also Published As

Publication number Publication date
CN102177286A (zh) 2011-09-07
CN102177286B (zh) 2014-01-29
BE1018304A3 (nl) 2010-08-03
WO2010105314A2 (en) 2010-09-23
EP2356271A2 (en) 2011-08-17
WO2010105314A3 (en) 2011-01-06

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