EP0932713A1 - Dispositif de protection de la liaison d'une lisse jacquard avec ses moyens de commande et/ou de rappel - Google Patents
Dispositif de protection de la liaison d'une lisse jacquard avec ses moyens de commande et/ou de rappelInfo
- Publication number
- EP0932713A1 EP0932713A1 EP98906969A EP98906969A EP0932713A1 EP 0932713 A1 EP0932713 A1 EP 0932713A1 EP 98906969 A EP98906969 A EP 98906969A EP 98906969 A EP98906969 A EP 98906969A EP 0932713 A1 EP0932713 A1 EP 0932713A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- eyelet
- synthetic material
- end piece
- connection
- 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
Links
Classifications
-
- 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
- the object of the present invention is to provide a protection device which overcomes these drawbacks and which is compact, easy to implement, inexpensive, while preventing vertical snagging between neighboring rails.
- the device according to the invention comprises on each stringer and near its eyelet or its loop for hanging a cord, an end piece which, made of synthetic material, is slidably mounted on the stringer and comprises , opposite the eyelet or equivalent, an extreme part without sharp angle and whose cross section decreases as it moves away from this eyelet, and, near this eyelet, a cylindrical bearing for the attachment by radial tightening of a tubular body having an internal diameter substantially equal to that of this eyelet and a length greater than that of the connection zone, so that when this end piece is brought against the eyelet, grip this eyelet and go beyond him.
- each stringer is previously provided with the plastic end piece, slidably mounted on it and equipped with the tubular body.
- the end piece When mounting the heddle, the end piece is moved away from the eyelet, to promote knotting or jamming of the cord, then is brought back against this eyelet so that its tubular body envelops the latter and the knotted or hooked ends of the arcade cord.
- the tubular body is made of heat-shrinkable synthetic material and is fitted onto the cylindrical surface of 1 • end piece.
- This arrangement allows, at a low cost, to secure the tubular body with the end piece and then, after it has been brought around the connection zone and by heat shrink, to retract it on this area to reduce the overall size of the protection.
- the second system consists in wrapping the connection zone of the arch cord with the eyelet or the loop by a part of overmolded synthetic material.
- This solution is expensive and forms a protrusion around the point of connection which, in the case of a high density of heddles and of operation at high speed, favors, when in contact with neighboring growths, transverse rebounds harmful to the quality weaving.
- the third system consists of covering the connection area of the heddle with a tube of heat-shrinkable plastic having a length of the order of 30 mm.
- This tube is first introduced under the rail to come below the eyelet or the loop then, after knotting or wedging the end of the arch bead, is reassembled to wrap the connection area, then is heated to heat shrink around this area.
- This technique which ensures the protection of the connection zone, while possibly participating in the connection, within the framework of wedging the cord, has the advantage of very slightly increasing the transverse dimension of this connection zone and this because the small thickness of the tube.
- the invention relates to a device for protecting the connection of the heddles of Jacquard looms, that is to say equipped with a Jacquard mechanism, with the arcade cords, also applicable to the lower ends of the heddles mentioned by elastic threads.
- each stringer 2 is provided with an eyelet 3 crossed by the warp thread 4 whose vertical position must be checked. It is linked, by its lower end 2a, to return means constituted, according to the embodiments, by a spring 5 or by an elastic wire, fixed by its end to the frame. Its upper end 2b is provided with an eyelet or equivalent allowing it to be hooked to an arch cord controlled by the Jacquard 8 mechanism.
- Each stringer is generally supplied by being linked to its return means and it is placed on the loom by hooking the lower end of its means on a fixed part of the frame and by hooking its eyelet 2b to the end of one of the yoke cords 6.
- the first system uses a plastic tube which, having a length greater than that of the crowd, is arranged around the heddle, then, after knotting or wedging the end of the cord in the loop or the eyelet of the smooth, is reassembled on the loop of the eyelet beyond the end of this element.
- a plastic tube which, having a length greater than that of the crowd, is arranged around the heddle, then, after knotting or wedging the end of the cord in the loop or the eyelet of the smooth, is reassembled on the loop of the eyelet beyond the end of this element.
- Such a tube has the disadvantage of having a minimum outside diameter which is too large and which cannot be used at high densities.
- the tubular body is constituted by a section of helical spring, the lower end of which is fitted onto the cylindrical attachment surface of the end piece.
- This spring which can be cylindrical, frustoconical, or ogival, contributes to the connection while forming a protection of the latter.
- this device forms a whole, conical and without sharp angles at least on one side.
- this assembly comes into contact with the projecting ends of the neighboring rails, it moves away radially and gradually the connecting zones of the neighboring rails, without generating rebounds and without the risk of catching.
- Figure 1 is a schematic view of a heald assembly with a Jacquard mechanism
- FIGS. 2, 3 and 4 are views in longitudinal section of a stringer fitted according to the invention, respectively, before hanging the cord, after hanging or knotting and after retraction of the tubular body,
- Figure 5 is a side view in cross section similar to Figure 4 but showing another embodiment of the device according to the invention.
- the heald 2 is equipped with an end piece 10 made of synthetic material.
- This tip has, going from top to bottom, that is to say going opposite the eyelet 2b, a cylindrical surface 13, a shoulder 12 and an end 14.
- the latter has a cross section which , decreasing in moving away from the eyelet 2b, gives it a frustoconical or ogival shape, without sharp angles.
- This end piece can be molded out of the heddle and then threaded onto it before its eyelet or its loop 2b is formed, but it can also be molded directly onto the heddle 2, when the synthetic material the component exhibits the ability not to adhere to the metal constituting the heald 6, so that this end piece is free in translation on this heald.
- One of the ends of a tubular body 15 is fitted onto the cylindrical surface 13 of the endpiece 10. The engagement of this body is limited by abutment on the shoulder 12.
- this tubular body 15 is constituted by a section of sheath of heat-shrinkable synthetic material.
- the heald When the heald is supplied, it is therefore integral with the end piece 10 equipped with the section 15 as shown in FIG. 2.
- the end piece 10 To proceed with its mounting, the end piece 10 is moved opposite the eyelet 2b to release this eyelet and facilitate the attachment or knotting of the yoke cord 6 on it.
- the entire device is reassembled so that, as shown in FIG. 3, the tube 15 envelops the eyelet 2b and the end of the yoke cord 6 and extends beyond these elements. It is then proceeded to the localized heating of the tube 15 so that the latter retracts by marrying the eyelet and the arch cord, and taking the shape shown in FIG. 4.
- the connection zone Under these conditions, the connection zone has , in the lower part, a pronounced ogival shape without a sharp angle or edge and, in the upper part, a shape whose cross section generally decreases upwards.
- the embodiment shown in Figure 5 differs from the previous one in that the tubular body 15 of synthetic material is replaced by a helical spring 16 whose lower end is fitted with radial clamping on the cylindrical seat 13 of the 'end piece 10.
- the spring shown is of frustoconical type, but it can also be cylindrical, provided that the maximum dimension of the end piece 10 is greater than its outside diameter. This spring may include contiguous or spaced turns. The end of its turn furthest from the endpiece 10 is returned to the inside, for example by bending, so as not to form a sharp angle which can catch the other end pieces.
- the largest outside diameter of the end piece 10, measured at the shoulder 12, is greater than the diameter of the tube 15 or of the spring 16, and this to avoid any catching with the juxtaposed end pieces.
- the internal diameter of the tube 15 or of the spring 16 it has a value substantially equal, apart from the functional clearance, to that of the transverse size of the eyelet 2b or of the loop.
- the length of the tube 15 or of the spring 16 is of the order of 30 mm, so as, as shown in FIGS. 3 to 5, to extend beyond the connection zone between the yoke 6 and the eyelet 2b or equivalent.
- connection and protection device which has been described in the context of its application to the attachment of the upper end of a heddle to a yoke, can also be used for the attachment of the lower end from smooth to elastic reminder cord.
- the device according to the invention is simple to implement, inexpensive, compactly transversely and contributes to avoiding any hooking between beams.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Clamps And Clips (AREA)
- Looms (AREA)
- Cable Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9701518A FR2759095B1 (fr) | 1997-02-05 | 1997-02-05 | Dispositif de protection de la liaison d'une lisse jacquard avec ses moyens de commande et/ou de rappel |
FR9701518 | 1997-02-05 | ||
PCT/FR1998/000201 WO1998035080A1 (fr) | 1997-02-05 | 1998-02-04 | Dispositif de protection de la liaison d'une lisse jacquard avec ses moyens de commande et/ou de rappel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0932713A1 true EP0932713A1 (fr) | 1999-08-04 |
EP0932713B1 EP0932713B1 (fr) | 2001-11-28 |
Family
ID=9503538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98906969A Expired - Lifetime EP0932713B1 (fr) | 1997-02-05 | 1998-02-04 | Dispositif de protection de la liaison d'une lisse jacquard avec ses moyens de commande |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0932713B1 (fr) |
DE (1) | DE69802660T2 (fr) |
FR (1) | FR2759095B1 (fr) |
WO (1) | WO1998035080A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2855838A1 (fr) * | 2003-06-04 | 2004-12-10 | Amstar Sarl | Dispositif de liaison entre chacune des lisses et son cordon de commande dans un metier jacquard |
EP1743965A2 (fr) | 2005-07-15 | 2007-01-17 | NV Michel van de Wiele | Dispositif et procédé pour le verrouillage de l'accrochage d'une lisse à un cordon |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2770541B1 (fr) * | 1997-11-05 | 1999-12-24 | Staubli Lyon | Dispositif d'accrochage d'une lisse a un cordon, lisse de metier a tisser comprenant un tel dispositif d'accrochage et metier a tisser equipe d'une telle lisse |
BE1012321A5 (nl) * | 1998-12-04 | 2000-09-05 | Wiele Michel Van De Nv | Jacquardhevel. |
CZ10648U1 (en) * | 2000-10-11 | 2000-12-01 | Tre | Connecting device for cords |
CN102773692A (zh) * | 2012-07-25 | 2012-11-14 | 浙江旷达纺织机械有限公司 | 一种用于通丝装造的校眼设备的套管固定模板 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2114285A5 (en) * | 1970-11-18 | 1972-06-30 | Dutel Marcel | Yarn lock - on jacquard stitch/warp rod by sliding sleeve |
FR2198011A2 (en) * | 1972-08-29 | 1974-03-29 | Dutel Marcel | Loom jacquard mechanism has heald wires - connected at their lower ends to elastic return cords and sleeves covering joints between cords and wires |
FR2212891A5 (en) * | 1972-12-28 | 1974-07-26 | Taine Yvon | Securing together wires or cables - in which the joint is covered by sheath having fusible and contractible layers |
IT1204672B (it) * | 1987-05-29 | 1989-03-10 | Creazioni Tessili Borsa Di Ces | Tirante elastico,applicabile alle macchine jacquard,per la realizzazione di tessuti operati |
FR2674264A1 (fr) * | 1991-03-21 | 1992-09-25 | Amstar | Element de rappel a ressort pour lisse de metier a tisser equipe d'une mecanique jacquard. |
-
1997
- 1997-02-05 FR FR9701518A patent/FR2759095B1/fr not_active Expired - Fee Related
-
1998
- 1998-02-04 WO PCT/FR1998/000201 patent/WO1998035080A1/fr active IP Right Grant
- 1998-02-04 EP EP98906969A patent/EP0932713B1/fr not_active Expired - Lifetime
- 1998-02-04 DE DE69802660T patent/DE69802660T2/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9835080A1 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2855838A1 (fr) * | 2003-06-04 | 2004-12-10 | Amstar Sarl | Dispositif de liaison entre chacune des lisses et son cordon de commande dans un metier jacquard |
EP1743965A2 (fr) | 2005-07-15 | 2007-01-17 | NV Michel van de Wiele | Dispositif et procédé pour le verrouillage de l'accrochage d'une lisse à un cordon |
BE1016685A3 (nl) * | 2005-07-15 | 2007-04-03 | Wiele Michel Van De Nv | Inrichting en werkwijze voor het borgen van de verbinding van een hevel en een harnaskoord. |
EP1743965A3 (fr) * | 2005-07-15 | 2009-01-28 | NV Michel van de Wiele | Dispositif et procédé pour le verrouillage de l'accrochage d'une lisse à un cordon |
US7503352B2 (en) | 2005-07-15 | 2009-03-17 | N.V. Michel Van De Wiele | Device and method for locking the connection of a heddle to a harness cord |
Also Published As
Publication number | Publication date |
---|---|
FR2759095A1 (fr) | 1998-08-07 |
DE69802660T2 (de) | 2002-05-23 |
WO1998035080A1 (fr) | 1998-08-13 |
EP0932713B1 (fr) | 2001-11-28 |
FR2759095B1 (fr) | 1999-04-23 |
DE69802660D1 (de) | 2002-01-10 |
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