EP0245576A1 - Vorrichtung zum Knüpfen von Smyrnamaschen, genannt Ghiodesknoten, an einem Stramin - Google Patents

Vorrichtung zum Knüpfen von Smyrnamaschen, genannt Ghiodesknoten, an einem Stramin Download PDF

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Publication number
EP0245576A1
EP0245576A1 EP86810608A EP86810608A EP0245576A1 EP 0245576 A1 EP0245576 A1 EP 0245576A1 EP 86810608 A EP86810608 A EP 86810608A EP 86810608 A EP86810608 A EP 86810608A EP 0245576 A1 EP0245576 A1 EP 0245576A1
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EP
European Patent Office
Prior art keywords
canvas
loop
wire
head
pile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86810608A
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English (en)
French (fr)
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EP0245576B1 (de
Inventor
Hubert Jeandupeux
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Individual
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Individual
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Publication date
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Publication of EP0245576A1 publication Critical patent/EP0245576A1/de
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Publication of EP0245576B1 publication Critical patent/EP0245576B1/de
Expired legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04G—MAKING NETS BY KNOTTING OF FILAMENTARY MATERIAL; MAKING KNOTTED CARPETS OR TAPESTRIES; KNOTTING NOT OTHERWISE PROVIDED FOR
    • D04G3/00—Making knotted carpets or tapestries
    • D04G3/02—Making knotted carpets or tapestries by hand; Tools therefor

Definitions

  • the present invention relates to an apparatus of the type described in the preamble of claim 1.
  • Such an apparatus is described in Swiss Patent No. 330,712.
  • the engagement of this apparatus known in the canvas takes place in two stages: a first , to first pass the loop of the device through the canvas, holding the button at the end of the guide rod pressed against the handle of the device, and a second, to pass the hooks with the fur thread through the canvas by releasing of course the said button.
  • this device tires more or less quickly the person who uses it, to the point that some become discouraged and definitively give up continuing this work.
  • the reason for this fatigue is due to the force that must be applied to pass the pile through the canvas. It will be noted, in fact, that at the moment when a hook prepares to pass the strand of pile wire which it entails through the canvas, the free end of this strand folds around the hook, so that this the latter must push two thicknesses of pile wire through the same opening in the canvas. As the two hooks of the known device are symmetrical, so it is. four thicknesses of pile wire which must be passed at the same time in the openings of the canvas.
  • the invention aims to overcome these defects. Thanks to the asymmetry of the hooks, which results from the characteristic of claim 1, these hooks pass one after the other through the canvas the strands of the pile thread which they entrain. It is therefore only two thicknesses of pile wire which pass at the same time through the canvas. In addition, the hook which passes its strand of pile thread through the canvas is no longer pressed by the other hook against the strand of thread of the canvas neighboring those between which the loop of the device is engaged. The hooks therefore no longer have to deform the canvas by engaging the pile wire therein. Finally, the friction of the ends of the pile thread sliding in the hooks and against a strand of thread of the canvas is halved, since it is only the friction of one end of the pile thread that must be overcome at a time.
  • the asymmetry of the hooks of the device according to the invention thus has the effect of reducing to a very large extent the resistance of the canvas to the penetration of the pile thread.
  • the device according to the invention easily enters the canvas. It can be pushed there with two fingers, whereas the known device with symmetrical hooks had to be pushed with full hand and, by certain people, even with both hands.
  • the special embodiments defined by claim 2 have the advantage that the first strand of the pile wire to be introduced into the loop of the device is protected between its hook and a side wall of the loop and therefore does not risk not to be pushed out of the loop, when the second strand of this wire is introduced there in turn.
  • Those defined by claim 3 have the advantage of preventing the hair thread from sliding around the nose of the head of the device instead of sliding in the hooks, for example in the first, which grabs a strand first place, or because of the thickness of the pile thread, which is not always very regular along this thread.
  • the loop of the device first enters the canvas alone and the hooks are released only when the loop has reached the end of its travel. To make a Smyrna point, this device only has to be pushed against the canvas and then to be removed after arriving at the end of the race.
  • the special embodiments defined by claim 7 have the advantage of further reducing the friction when the second strand of pile wire enters the loop of the device.
  • the coefficient of friction of the pile wire is, in fact, significantly lower with the metal of the partition of the loop than with the other strand of the pile wire.
  • the bulkhead of the loop also has the advantage of preventing the two strands of the pile thread from rubbing against each other at the risk of becoming untwisted.
  • the apparatus also comprises a device which can slide freely along the rod 7.
  • This device comprises a hollow handle 13 molded in one piece from synthetic material with a lifter 14.
  • the latter has two pins 15 to which metal hooks 16 are articulated , 17 arranged in different planes.
  • the ends 16a, 17a of these hooks are engaged in grooves (not shown) of the cheeks 3.
  • Each hook is guided in these grooves by a pair of pins 18, which are planted through the cheeks 3.
  • Fig. 1 shows that the end 16a of the hook 16 is closer to the housing 4 than the end 17a of the hook 17 is not closer to the housing 5. In the embodiment shown, this result is obtained by a longer hook 16 as the hook 17. The result would however be the same with two identical hooks, if one of them was articulated at a point farther from the lifter 14 than the other.
  • a needle 19 is also attached to this lifter 14 and an eyelet 20, integral with the head 1 guides the end.
  • This eyelet 20 could also have come from manufacture in a piece in the form of a wire, suitably bent, with the pins 18.
  • FIG. 2 shows that the hook 16, the longest, is on the side of the needle 19. Looking at the front face of the device, the hook 16 is therefore behind the hook 17.
  • the apparatus described is intended to form Smyrna points on a canvas composed of pairs of warp and weft threads close together: These pairs of threads are regularly spaced scale along line XI-XI of FIG. 12; Fig. 12 is a partially sectioned side view of another D artie de la Fia. 9. and square openings. A pair of weft threads 21 and a thread 22 of the adjacent pairs are shown in section in FIGS. 3 to 6. The wires 21, 22 are
  • a baffle may be provided at the rear of the device.
  • an eyelet 20 coming from one-piece manufacturing with the pins 18, the latter could also have come from manufacturing in a threadlike piece, having a "U” shaped part including the jambs, at a distance one on the other smaller than the diameter of the needle 19, would extend along the latter, up to the vicinity of the end 6 of the nose 2, the rounded end of this part in "U” being curved towards the back of the head 1.
  • a pile wire is correctly in place on the apparatus shown in Figs. 1 and 2. This one is ready to tie a Smyme stitch on the canvas. To this end, the device is engaged in the canvas. This engagement includes two stages.
  • the loop 8 is introduced between the two strands of the pair 21 of weft threads close together, then pushed fully through the canvas.
  • the two strands of the pair 21 are trapped at the bottom of the concavity of the end 6 of the nose 2 of the head 1.
  • This measurement takes on its full meaning in the case of scarcely or not primed canvas or in those whose primer has more or less disappeared; it prevents in particular that one or the other of the strands of the pair 21 is not grasped and possibly cut by the hooks 16, 17 during the next time of the maneuver.
  • the button 12 must be kept pressed against the handle 13. If the latter is grasped with the full hand, the button 12 will be held against the handle 13 by the thumb.
  • the person using the device perceives the arrival of the loop 8 in the position of FIG. 3 to the resistance that the strands of the pair 21 of the canvas then oppose in advance of the device against the canvas. At this moment, it must release the button 12 in order to carry out the second time of the engagement of the device in the canvas, starting to slide the handle 13 along the rod 7.
  • the hook 16, the most long, then grips the part of the pile 23, which is engaged in the housing 4 and begins to push the strand 25 against the canvas, while sliding along this strand 25, towards its end, An instant later , it is the hook 17 which in turn grasps the part of the pile wire 23 engaged in the housing 5.
  • the pile wire 23 thus takes the inclined position shown in FIG. 3. Simultaneously, the point of the needle 19, which is located near the middle part 24 of the pile wire 23, begins to crash in this part.
  • the hooks 16, 17 successively pass the two strands 25 and 26 of the pile wire 23 through the openings between the strands of the pair 21 of weft yarns and the strands 22 of the pairs of neighboring weft yarns. At the same time, the hooks 16, 17 slide the middle part 24 of the pile 23 along the nose 2, until this part rests on the canvas (Fig. 4).
  • the needle 19 helps to slide the part 24 of the pile thread along the nose 2, but it prevents this thread from turning around this nose - for example under the tensile force exerted by the hook 16 on the strand 25 hairline 23 - not only because it is planted in this part 24, but also because it compresses the part between it and the bulge 2a of the nose 2.
  • the hook 16 When the hook 16 enters the corresponding aperture of the canvas, it is guided there by the weft strand 22 of the neighboring pair, but it does not exert any particular pressure against this strand 22, which could deform it by pushing away from pair 21, because hook 17 has not yet entered the canvas. When it is the turn of this hook 17 to enter the corresponding opening of the canvas, it is guided there under the same conditions by the strand 22 of weft thread of the neighboring pair, since at this moment, the hook 16 has already crossed the canvas. Throughout this penetration, the hooks 16, 17 naturally continue to slide progressively along their respective strands 25, 26 of the pile wire, in the direction of the ends of these strands.
  • the distance between the ends of the hooks is at least equal to the thickness of the pile wire, so that the hook 16 has passed the strand 25 of the pile thread through the canvas, when the hook 17 is about to pass the strand 26 of this thread.
  • Fig. 5 represents the moment of advance of the mobile assembly of the apparatus where the hook 16 has introduced the strand 25 of the pile wire 23 into the compartment 11 of the loop 8, while the hook 17 is about to introduce the strand 26 of the pile wire 23 in the compartment 10 of this loop.
  • the end of the strand 25 of the pile wire 23 was also folded around the hook 16 at the entry into the compartment 11 of the loop 8.
  • this folded end of the strand 25 When this folded end of the strand 25 is entirely in the compartment 11, it straightens and leaves the hook 16. As the hook 16 is then behind the hook 17, this strand 25 is located between the hook 16 and the rear side wall of loop 8 and not between the two hooks. When the hook 17 in turn makes the strand 26 of the pile thread enter. compartment 10 of the loop 8 (Fig. 6), this strand cannot therefore come into contact with the strand 25, although it is located between the two hooks. At most, it could rub against the end of the strand 25 still folded around the hook 16, if the loop 8 was not partitioned.
  • the hook 17, the shortest is still long enough so that when it reaches the end of its travel, it passes the end of the strand 26 - which folds around this hook at the entrance to the loop 8 - entirely in this loop, so that it straightens up and leaves the hook 17. If the end of the strand 26 remained folded around the hook 17 at the end of its travel, the latter would risk drawing the strand 26 out of the loop 8 by withdrawing.
  • the partition 9 of the loop 8 prevents any contact between the strands 25 and 26 of the pile wire in the loop. Hair threads, even if not specially treated, are therefore unlikely to become untwisted by rubbing against each other. Furthermore, the friction of the end of the strand 25, folded around the hook 16, and of the strand 26 against the partition 9 is lower than that of these strands against each other.
  • the person using the device according to the invention only has to remove it from the canvas to form a Smyrna point.
  • the moving element 13-20 moves back against the button 12 by removing the hooks 16, 17 from the loop 8 and bringing them back to their rest position shown in FIG. 1.
  • the loop 8 is still fully engaged in the canvas with the strands 25 and 26 of the pile wire 23 in its compartments 10, 11, as shown in FIG. 7.
  • the loop 8 is withdrawn from the canvas by carrying with it the two strands 25 and 26 between the two strands of the pair 21 of weft threads. This results in the Ghiordès knot or Smyrna point shown in Fig. 8.
  • the strands 25 and 26 of the pile wire 23 will constitute the pile of the carpet, when the knotting of the stitches is finished on the canvas considered.
  • the middle part 24 of the wire 23 which is wound around the two warp threads of the pair 21, it forms. the node itself.
  • the bristles 24, 25 are thus juxtaposed along the narrow space delimited, on the one hand, by the two strands of weft thread of the pair 21, and, on the other hand, by the adjacent pairs of warp threads (not shown) of the canvas.
  • the middle part 24, for its part, of the pile wire 23 passes over one of the pairs of warp wires delimiting the space in which the bristles 25, 26 are located.
  • FIG. 8 also shows that these bristles 25, 26 are strangled by the strands of the pair 21 of warp threads, which perfectly condemns the knot thus formed.
  • the apparatus described makes it possible to form a Smyrna point simply by pushing it fully against the canvas after having placed around its nose 2 a strand of pile wire, previously cut to the desired length, then by removing it completely. of the canvas. Until the loop 8 has passed entirely through the canvas, however, it is necessary to hold the button 12 against the handle 13. Packages of strands of pile threads of different colors, lengths and sizes are on the market.
  • the second embodiment (Fig. 9 to 13) is more elaborate, therefore somewhat more expensive than the first; but it has the great advantage of exempting the person using it from making a movement and of avoiding the fatigue which it causes.
  • this second embodiment differs from the first only by the presence of a ball snap, which blocks the moving element along the guide rod. as long as the partitioned loop of the aircraft enters the canvas, but which automatically releases this crew, as soon as the loop is fully engaged in the canvas.
  • the head To mount the ball catch on the device according to the invention, the head, the guide rod which is integral with it and the handle of the device must however be slightly modified.
  • the head has four holes 27 which pass through it parallel to the axis of the device and open into the bottom of the concavity of the end 6 of its nose 2.
  • Four branches 28 of equal lengths of a metal trigger 29 (Fig. 10) pass through the holes 27, in which they can slide freely.
  • the branches 28 constitute the legs of a "U" whose rounded base 30 is bent at right angles so as to surround the base of the loop 8 (Fig. 11).
  • the bases 30 At rest (Fig. 9 and 12), the bases 30 are located at a certain distance from the bottom of the concavity of the end 6 of the nose 2.
  • the ends of the branches 28 are fixed to a flat ring 31 which, in the position of Figs. 9 and 12, rest against the head.
  • the guide rod 7a has, on the one hand, a diametrical slot 32, of length equal to the stroke of the moving part of the apparatus, and, on the other hand, a notch 33 in the walls in cylindrical surface shape.
  • the handle 13a it has an internal groove 34 and a shoulder 35. It is longer than that of the first embodiment and its upper end is closed.
  • the apparatus according to the second embodiment also comprises a ball 36 housed in the notch 33 and a sleeve 37 adjusted on the guide rod 7a of so that it can slide freely along it.
  • the sleeve 37 has a lateral opening 38 and it is placed under the action of a coil spring 39 which is housed in the handle 13a, around the guide rod 7a, and bears against the shoulder 35 to push the sleeve 37 against head Ia.
  • a pin 40 is driven through the handle 13a and passes freely through the slot 32 of the guide rod 7a.
  • the spring 39 moves the mobile assembly 13-20 away from the head 1a. It presses the pin 40 against the upper end of the slot 32 and the ring 31 against the head 1a via the sleeve 37. In this position, the edges of the opening 38 of the sleeve 37 separate the ball 36 from the bottom of the notch 33 and keep it engaged in the groove 34, which locks the handle 13a to the guide rod 7a and consequently secures the mobile assembly and the head between them.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Toys (AREA)
  • Looms (AREA)
EP86810608A 1986-05-16 1986-12-22 Vorrichtung zum Knüpfen von Smyrnamaschen, genannt Ghiodesknoten, an einem Stramin Expired EP0245576B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2007/86 1986-05-16
CH2007/86A CH668278A5 (fr) 1986-05-16 1986-05-16 Appareil a nouer des points de smyrne dits noeuds de ghiordes sur un canevas.

Publications (2)

Publication Number Publication Date
EP0245576A1 true EP0245576A1 (de) 1987-11-19
EP0245576B1 EP0245576B1 (de) 1989-09-27

Family

ID=4223725

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86810608A Expired EP0245576B1 (de) 1986-05-16 1986-12-22 Vorrichtung zum Knüpfen von Smyrnamaschen, genannt Ghiodesknoten, an einem Stramin

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Country Link
US (1) US4804214A (de)
EP (1) EP0245576B1 (de)
CH (1) CH668278A5 (de)
DE (1) DE3665890D1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD2040G2 (ro) * 2001-12-20 2003-05-31 Валерий БАЧЕВИЧ Procedeu de înnodare la fabricarea covoarelor şi dispozitiv pentru realizarea lui
CN112936477A (zh) * 2021-01-30 2021-06-11 邵健 一种竹质单元编织自动打结钩机构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD868450S1 (en) * 2018-01-31 2019-12-03 The Oxford Company, LLC Punch needle handle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH330712A (fr) * 1953-10-05 1958-06-15 Jeandupeux Hubert Procédé de fabrication d'un tapis à points noués et appareil pour la mise en oeuvre de ce procédé
EP0098245A1 (de) * 1982-06-28 1984-01-11 MADAG Maschinen- und Apparatebau Dietikon AG Verfahren und Vorrichtung zum Knüpfen von Teppichen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2873766A (en) * 1957-02-27 1959-02-17 Jeandupeux Hubert Method of and apparatus for inserting pile tufts into a fabric
CH471269A (fr) * 1967-03-31 1969-04-15 Jeandupeux Pellaton Madeleine Appareil pour la confection de noeuds de tapis
US4423894A (en) * 1981-05-06 1984-01-03 Gerda Kaufmann Carpet-knotting instrument

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH330712A (fr) * 1953-10-05 1958-06-15 Jeandupeux Hubert Procédé de fabrication d'un tapis à points noués et appareil pour la mise en oeuvre de ce procédé
EP0098245A1 (de) * 1982-06-28 1984-01-11 MADAG Maschinen- und Apparatebau Dietikon AG Verfahren und Vorrichtung zum Knüpfen von Teppichen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD2040G2 (ro) * 2001-12-20 2003-05-31 Валерий БАЧЕВИЧ Procedeu de înnodare la fabricarea covoarelor şi dispozitiv pentru realizarea lui
CN112936477A (zh) * 2021-01-30 2021-06-11 邵健 一种竹质单元编织自动打结钩机构

Also Published As

Publication number Publication date
US4804214A (en) 1989-02-14
CH668278A5 (fr) 1988-12-15
DE3665890D1 (en) 1989-11-02
EP0245576B1 (de) 1989-09-27

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