EP0568473B1 - Driving system for the reciprocating knife boxes of a loom dobby - Google Patents
Driving system for the reciprocating knife boxes of a loom dobby Download PDFInfo
- Publication number
- EP0568473B1 EP0568473B1 EP19930420177 EP93420177A EP0568473B1 EP 0568473 B1 EP0568473 B1 EP 0568473B1 EP 19930420177 EP19930420177 EP 19930420177 EP 93420177 A EP93420177 A EP 93420177A EP 0568473 B1 EP0568473 B1 EP 0568473B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frames
- cams
- articulated
- lever
- levers
- 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.)
- Expired - Lifetime
Links
- 238000009941 weaving Methods 0.000 claims description 2
- 210000000078 claw Anatomy 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
Images
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
- D03C3/32—Jacquard driving mechanisms
- D03C3/36—Griffe operating mechanisms
Definitions
- the present invention relates to a movement control mechanism back and forth of the claw frames of a training device from the crowd of a loom.
- the invention relates more particularly, although not exclusively, to a device of the kind in question produced in the form of an armor mechanism with great length in the direction of the chain.
- Armor mechanics of this kind are generally actuated by means of a set of connecting rods and levers from a rotating shaft in synchronism with the loom weave.
- This tree is arranged transversely, that is to say in the direction of the weft of the fabric.
- On the tree are wedged eccentrics or cams operating levers from which the usual levers of order of the two claw frames.
- the levers from the mechanical control shaft are of great length, so that they are of realization not very economical due to their complexity.
- these levers must be designed not to flame during the transmission of forces, this which requires them to have a heavy structure which harms the rapid operation of such a mechanism due to their inertia.
- the mechanism following the preamble of the independent claim further includes two pendulums which are associated with actuation levers for claw frames, while the lever in V includes an extension in the corners of which two joints are provided for the ends of two short connecting rods whose opposite ends are respectively articulated in opposition to the two usual pendulums which control the actuation levers of the two claw frames.
- chassis 1 of a mechanical of armor essentially comprising two claw frames 2, 3 which are moved vertically back and forth by a control mechanism according to the invention.
- the frame 1 is placed on two beams 4, 5 located above a not shown weaving loom whose warp threads must be raised and / or lowered using the illustrated armor mechanics.
- the control shaft of the mechanism according to the invention is arranged in the middle part of chassis 1 and it has been assigned the reference 6. This tree is controlled in rotation by the loom and we will not return not on this well known training.
- the lever 11 has an extension 11c in duquels angles are mounted two axes 13, 14 around which are articulated respectively at one end of a connecting rod 15, 16.
- frames 2 and 3 are animated by a vertical back and forth movement thanks to the presence of two long levers 17, 18 associated with the upper frame and by two levers short 19, 20 articulated to the lower frame 3.
- the levers 17, 19 and 18, 20 are mounted oscillating in pairs on a balance 21, 22 which pivots around a shaft 23, 24. These two shafts are arranged symmetrically with respect to the transverse plane of the chassis 1 containing the geometric axis of the tree 6.
- rocker 21 is provided with a flange 21a facing away frames 2 and 3, while the rocker arm 22 is provided with a flange 22a facing the frames 2 and 3.
- Each flange 21 has , 22 a comprises a fixed axis 25, 26 around which the second end of the levers 15, 16 pivots.
- the connecting rods 15 and 16 are relatively short, so that they do not harm rapid mechanical operation because they do not generate no difficulty in terms of their inertia, even if the length of the chassis 1 in the direction of the chain is very important.
- the ends of the levers 17, 18, 19, 20 which cooperate with the pendulums 21 and 22 can be placed in different positions in lights 21 b , 21 c of the pendulum 21 and 22 b , 22 c of that 22 in order to adjust the stroke of frames 2 and 3.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Description
La présente invention est relative à un mécanisme de commande du mouvement de va-et-vient des cadres de griffes d'un dispositif de formation de la foule d'un métier à tisser. L'invention a trait plus particulièrement, bien que non exclusivement, à un dispositif du genre en question réalisé sous la forme d'une mécanique d'armure présentant une grande longueur dans le sens de la chaíne.The present invention relates to a movement control mechanism back and forth of the claw frames of a training device from the crowd of a loom. The invention relates more particularly, although not exclusively, to a device of the kind in question produced in the form of an armor mechanism with great length in the direction of the chain.
Les mécaniques d'armure de cette sorte, telles que connues de EP-A-0 409 139, sont généralement actionnées au moyen d'un ensemble de bielles et de leviers à partir d'un arbre tournant en synchronisme avec le métier à tisser. Cet arbre est disposé transversalement, c'est-à-dire dans le sens de la trame du tissu. Sur l'arbre sont calés des excentriques ou cames actionnant des leviers à partir desquels partent les leviers usuels de commande des deux cadres de griffes. On comprend aisément que dans une telle structure, les leviers issus de l'arbre de commande de la mécanique sont de grande longueur, de telle sorte qu'ils sont de réalisation peu économique du fait de Leur complexité. En outre, ces leviers doivent être conçus pour ne pas flamber lors de la transmission des efforts, ce qui nécessite de leur faire comporter une structure lourde qui nuit au fonctionnement rapide d'une telle mécanique du fait de leur inertie.Armor mechanics of this kind, as known from EP-A-0 409 139, are generally actuated by means of a set of connecting rods and levers from a rotating shaft in synchronism with the loom weave. This tree is arranged transversely, that is to say in the direction of the weft of the fabric. On the tree are wedged eccentrics or cams operating levers from which the usual levers of order of the two claw frames. It is easy to understand that in a such structure, the levers from the mechanical control shaft are of great length, so that they are of realization not very economical due to their complexity. In addition, these levers must be designed not to flame during the transmission of forces, this which requires them to have a heavy structure which harms the rapid operation of such a mechanism due to their inertia.
Les perfectionnements qui font l'objet de la présente invention visent à remédier à ces inconvénients. A cet effet, le mécanisme suivant le préambule de la revendication indépendante comprend en outre deux balanciers auquels sont associés des leviers d'actionnement des cadres de griffes, tandis que le levier en V comprend un prolongement dans les angles duquel sont prévues deux articulations pour les extrémités de deux bielles courtes dont les extrémités opposées sont respectivement articulées en opposition aux deux balanciers usuels qui commandent les leviers d'actionnement des deux cadres de griffes.The improvements which are the subject of the present invention aim to remedy these drawbacks. To this end, the mechanism following the preamble of the independent claim further includes two pendulums which are associated with actuation levers for claw frames, while the lever in V includes an extension in the corners of which two joints are provided for the ends of two short connecting rods whose opposite ends are respectively articulated in opposition to the two usual pendulums which control the actuation levers of the two claw frames.
Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre
l'invention, les caractéristiques qu'elle présente et les avantages
qu'elle est susceptible de procurer :
On a schématisé en traits discontinus le châssis 1 d'une mécanique
d'armure comprenant essentiellement deux cadres de griffes 2, 3 qui sont
déplacés verticalement en va-et-vient grâce à un mécanisme de commande
suivant l'invention.We have diagrammed in broken lines the chassis 1 of a mechanical
of armor essentially comprising two
Le châssis 1 est posé sur deux poutrelles 4, 5 situées au-dessus d'un
métier à tisser non représenté dont les fils de chaíne doivent être
élevés et/ou abaissés au moyen de la mécanique d'armure illustrée.The frame 1 is placed on two
L'arbre de commande du mécanisme suivant l'invention est disposé dans la
partie médiane du châssis 1 et on lui a affecté la référence 6. Cet
arbre est commandé en rotation par le métier à tisser et on ne reviendra
pas sur cet entraínement bien connu.The control shaft of the mechanism according to the invention is arranged in the
middle part of chassis 1 and it has been assigned the
Sur l'arbre 6 sont calés deux cames 7, 8 coopérant respectivement avec
un galet 9, 10 monté à rotation libre à l'extrémité des deux branches en
V 11a, 11b d'un levier 11 claveté sur un arbre 12. On comprend aisément
que la rotation de l'arbre 6 entraíne un mouvement basculant du levier
11. Un tel agencement est d'ailleurs décrit dans le document FR-A-2 669
648.On the
Suivant l'invention, le levier 11 comporte un prolongement 11c dans les
angles duquels sont montés deux axes 13, 14 autour desquels sont respectivement
articulées l'une des extrémités d'une bielle 15, 16.According to the invention, the
Comme cela est bien connu dans la pratique, les cadres 2 et 3 sont
animés d'un mouvement vertical de va-et-vient grâce à la présence de
deux leviers longs 17, 18 associés au cadre supérieur et par deux leviers
courts 19, 20 articulés au cadre inférieur 3. En outre les leviers
17, 19 et 18, 20 sont montés oscillants par paire sur un balancier 21,
22 qui pivote autour d'un arbre 23, 24. Ces deux arbres sont disposés
symétriquement par rapport au plan transversal du châssis 1 contenant
l'axe géométrique de l'arbre 6. As is well known in practice,
On observe que le balancier 21 est pourvu d'une joue 21a orientée à
l'opposé des cadres 2 et 3, tandis que le balancier 22 est muni d'une
joue 22a tournée vers les cadres 2 et 3. Chaque joue 21a, 22a comprend
un axe fixe 25, 26 autour duquel pivote la seconde extrémité des leviers
15, 16.It is noted that the
Bien entendu, les choses sont arrangées de manière que lors du basculement
du levier 11, la rotation inverse des deux balanciers 21, 22 soit
de même amplitude dans les deux sens.Of course, things are arranged so that when switching
Grâce à la disposition suivant l'invention, on note que les bielles 15
et 16 sont relativement courtes, de telle sorte qu'elles ne nuisent pas
à un fonctionnement rapide de la mécanique du fait qu'ils n'engendrent
aucune difficulté sur le plan de leur inertie, même si la longueur du
châssis 1 dans le sens de la chaíne est très importante.Thanks to the arrangement according to the invention, it is noted that the connecting
Bien entendu et comme cela est bien connu, les extrémités des leviers
17, 18, 19, 20 qui coopèrent avec les balanciers 21 et 22 peuvent être
placés à différentes positions dans des lumières 21b, 21c du balancier
21 et 22b, 22c de celui 22 afin de régler la course des cadres 2 et 3.Of course and as is well known, the ends of the
Claims (2)
- A mechanism for controlling the to and fro motion of the griff frames (2, 3) of the shedding device of a weaving loom of the type comprising cams (7, 8) fixed on a control shaft (6) disposed in the median part of the framework (1) of the device, said cams actuating an oscillating lever (11) keyed on a second shaft (12), said lever being provided with two branches (11a, 11b) forming a V and cooperating with said cams, characterised in that it further comprises two rocker arms (21, 22) with which are associated actuating levers (17, 18, 19, 20) of said griff frames, and in that said V-shaped lever (11) comprises an extension (11c), in the corners of which are provided two joints (13, 14) for the ends of two short connecting rods (15, 16), the opposite ends of which are respectively articulated in opposition to the two rocker arms (21, 22).
- A mechanism according to claim 1, characterised in that the first rocker arm (21) is provided with a cheek (21a) oriented in the opposite direction from the frames (2, 3) and to which one (15) of the short connecting rods is articulated by means of a pin (25), while the other connecting rod (16) is articulated by a pin (26) to a cheek (22a) of the other rocker arm (22) extending in the direction of the frames (2, 3).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9205613 | 1992-04-30 | ||
FR9205613A FR2690696B1 (en) | 1992-04-30 | 1992-04-30 | COMPLIANCE MECHANISM OF CLAW FRAMES OF A CROWD FORMING DEVICE OF A WEAVING MATERIAL. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0568473A1 EP0568473A1 (en) | 1993-11-03 |
EP0568473B1 true EP0568473B1 (en) | 1999-12-22 |
Family
ID=9429612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19930420177 Expired - Lifetime EP0568473B1 (en) | 1992-04-30 | 1993-04-27 | Driving system for the reciprocating knife boxes of a loom dobby |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0568473B1 (en) |
JP (1) | JP3272097B2 (en) |
DE (1) | DE69327361T2 (en) |
FR (1) | FR2690696B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102505244A (en) * | 2011-10-28 | 2012-06-20 | 吴江市金迪喷织厂 | Cutter bar connector for loom |
CN102618989A (en) * | 2012-03-28 | 2012-08-01 | 丁秋亚 | Lifting knife transmission mechanism of jacquard |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2717189B1 (en) * | 1994-03-10 | 1996-07-19 | Staubli Verdol | Back and forth movement control mechanism of the claw frames of an armor mechanic. |
BE1017667A3 (en) * | 2007-07-02 | 2009-03-03 | Wiele Michel Van De Nv | Jacquard device, has knife grid driving levers directly connected to eccentric shaft via drive rods in front and behind this device |
CN104480608B (en) * | 2015-01-19 | 2016-02-10 | 李素凤 | Swing mechanism in a kind of jacquard |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH111971A (en) * | 1924-11-11 | 1925-12-16 | Rueti Ag Maschf | Double stroke jacquard machine. |
DE1111115B (en) * | 1956-07-31 | 1961-07-13 | Erich Grosse | Jaquard machine, in which the knife box and sinker base are driven by a crank gear |
IT8222086V0 (en) * | 1982-06-07 | 1982-06-07 | Tagliabue Spa | DOUBLE LIFT JACQUARD EQUIPMENT. |
FR2551096B1 (en) * | 1983-08-26 | 1986-06-06 | Staubli Verdol | IMPROVED MECHANISM FOR THE ORDER OF THE CLAW FRAMES OF AN ARMOR MECHANICS |
BE1004308A3 (en) * | 1989-07-17 | 1992-10-27 | Wiele Michel Van De Nv | DRIVE FOR KNIVES GRIDS OF A DOUBLE-HEF OPEN GAAP jacquard, jacquard LIKE SUCH A DRIVE SYSTEM EQUIPPED. |
FR2669648B1 (en) * | 1990-11-27 | 1993-01-29 | Staubli Verdol | ASSEMBLY FOR CONTROLLING THE MOVEMENT OF THE FRAMES OF A CROWD FORMING DEVICE SUCH AS AN ARMOR MECHANICS. |
-
1992
- 1992-04-30 FR FR9205613A patent/FR2690696B1/en not_active Expired - Fee Related
-
1993
- 1993-04-20 JP JP09330793A patent/JP3272097B2/en not_active Expired - Fee Related
- 1993-04-27 EP EP19930420177 patent/EP0568473B1/en not_active Expired - Lifetime
- 1993-04-27 DE DE1993627361 patent/DE69327361T2/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102505244A (en) * | 2011-10-28 | 2012-06-20 | 吴江市金迪喷织厂 | Cutter bar connector for loom |
CN102618989A (en) * | 2012-03-28 | 2012-08-01 | 丁秋亚 | Lifting knife transmission mechanism of jacquard |
CN102618989B (en) * | 2012-03-28 | 2013-12-25 | 嵊州市盛通电子科技有限公司 | Lifting knife transmission mechanism of jacquard |
Also Published As
Publication number | Publication date |
---|---|
DE69327361D1 (en) | 2000-01-27 |
EP0568473A1 (en) | 1993-11-03 |
DE69327361T2 (en) | 2000-06-21 |
FR2690696B1 (en) | 1995-06-23 |
JP3272097B2 (en) | 2002-04-08 |
JPH0617347A (en) | 1994-01-25 |
FR2690696A1 (en) | 1993-11-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0851048B1 (en) | Selection device, three-position shedding mechanism and loom with such a shedding mechanism | |
EP0823501B1 (en) | Method and device for the selection of the mobile hooks of a shedding mechanism and jacquard loom | |
BE1017580A3 (en) | DEVICE FOR FORMATION OF THE CROWD USING EDGE THREADS IN A WEAVING MACHINE. | |
EP1475465B1 (en) | Shedding mechanism and jacquard loom with such a mechanism | |
EP0568473B1 (en) | Driving system for the reciprocating knife boxes of a loom dobby | |
EP0754791B1 (en) | Jacquard mechanism operated by coaxial shafts | |
EP0627512B1 (en) | Damping device for looms | |
EP0671493B1 (en) | Driving system for the reciprocating knife boxes of a loom dobby | |
EP0488915B1 (en) | Driving system for the knife boxes of a shed-forming mechanism such as a dobby | |
BE1008087A3 (en) | Improvements loom. | |
EP0136244B1 (en) | Mechanism for the control of the knife boxes of dobbies | |
EP0462035B1 (en) | Centre-shed dobby for looms | |
FR2541695A1 (en) | System for controlling the comb of a weaving machine and weaving machine equipped with such a system | |
EP0566506B1 (en) | Device for reciprocating the knives in heavy centre-shed dobbies | |
FR2528078A1 (en) | ||
EP0443969B1 (en) | Controlling mechanism for the movement of the needle frame of a shedding device | |
FR2917754A1 (en) | Roller device for controlling heddle frame of shuttle loom, has levers pivotingly mounted with respect to superstructure around respective geometrical axes, where axes of levers are vertically shifted with respect to one another | |
EP0124450B1 (en) | Loom dobbies | |
FR2467897A1 (en) | DRAWING DEVICE BETWEEN A RATIERE AND THE FRAMES OF A WEAVING | |
CH650809A5 (en) | Tensioning appliance of the negative type for frames of weaving looms | |
EP0524117B1 (en) | Improvements in Hattersley double lift dobbies for looms | |
FR1264588A (en) | Improvements to mechanics for looms | |
FR2553109A1 (en) | MOBILE FORMATION MOVEMENT, ESPECIALLY FOR WIRED MOBILE CROWD MILLS | |
CH673037A5 (en) | Positive dobby with hooks pivoting on lever - and planar surfaces on hooks cooperating with return bars | |
EP0274971A1 (en) | Negative dobby machines with oscillating swing levers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE CH DE ES FR GB IT LI |
|
17P | Request for examination filed |
Effective date: 19940217 |
|
17Q | First examination report despatched |
Effective date: 19970616 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: STAUBLI LYON |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE CH DE ES FR GB IT LI |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19991222 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19991222 |
|
REF | Corresponds to: |
Ref document number: 69327361 Country of ref document: DE Date of ref document: 20000127 |
|
ITF | It: translation for a ep patent filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000430 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000430 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20040420 Year of fee payment: 12 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050427 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20050427 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20060329 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20060407 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20060430 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20060504 Year of fee payment: 14 |
|
BERE | Be: lapsed |
Owner name: *STAUBLI LYON Effective date: 20070430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20071101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070427 |