EP0681046B1 - Métier à tricoter rectiliqne avec des moyens pour faciliter la formation et l'abattage de mailles - Google Patents
Métier à tricoter rectiliqne avec des moyens pour faciliter la formation et l'abattage de mailles Download PDFInfo
- Publication number
- EP0681046B1 EP0681046B1 EP95106082A EP95106082A EP0681046B1 EP 0681046 B1 EP0681046 B1 EP 0681046B1 EP 95106082 A EP95106082 A EP 95106082A EP 95106082 A EP95106082 A EP 95106082A EP 0681046 B1 EP0681046 B1 EP 0681046B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sinkers
- knitting machine
- straight
- bar
- machine according
- 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
- 238000009940 knitting Methods 0.000 title claims description 30
- 230000015572 biosynthetic process Effects 0.000 title claims description 12
- 238000005266 casting Methods 0.000 title 1
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/32—Cam systems or assemblies for operating knitting instruments
- D04B15/36—Cam systems or assemblies for operating knitting instruments for flat-bed knitting machines
- D04B15/362—Cam systems or assemblies for operating knitting instruments for flat-bed knitting machines with two needle beds in V-formation
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/06—Sinkers
Definitions
- the present invention relates to a straight-bar knitting machine with means for facilitating the formation and casting-off of stitches.
- a prior patent application in the name of the same Applicant discloses a straight-bar knitting machine provided with means for facilitating the formation and casting-off of stitches; said means are substantially constituted by a plurality of secondary sinkers provided in an additional needle holder and slideable in a plurality of slots formed correspondingly with respect to the knitting needles.
- the secondary sinkers are provided with a heel located in an upward region; actuation means, provided on the carriage of the straight-bar knitting machine, engage said heel.
- the secondary sinkers act constantly on the knitting and cannot be deactivated or activated in a different position; this fact can sometimes hinder the formation of the knitting.
- a principal aim of the invention is indeed to eliminate the drawbacks described above by providing a straight-bar knitting machine with means for facilitating the formation and casting-off of the stitches, allowing to automatically facilitate the activation of the secondary sinkers, moving them into different positions or out of action, during the stroke of the carriage.
- a particular object of the invention is to provide a straight-bar knitting machine wherein the carriage is not forced to perform a stroke that is longer than the region affected by the secondary sinkers that must be positioned.
- Another object of the present invention is to provide a straight-bar knitting machine wherein the positioning of the secondary sinkers to facilitate stitch formation is stable and can be maintained once it has been assumed.
- Another object of the present invention is to provide a straight-bar knitting machine capable of giving the greatest assurances of reliability and safety in use by virtue of its particular constructive features.
- the straight-bar knitting machine with means for facilitating the formation and casting-off of the stitches comprises two needle holders 1 and 2, arranged so as to form an inverted V, in a per se known manner. Needles 3 for forming stitches in a conventional manner are slideable on the needle holders 1 and 2.
- a first additional needle holder 4 and a second additional needle holder 5 are formed respectively proximate to the vertex of the needle holders 1 and 2 and are arranged symmetrically with respect to the plane of symmetry between the needle holders 1 and 2.
- the additional needle holders 4 and 5 form a plurality of slots, designated by the reference numeral 6 for both needle holders; secondary sinkers, generally designated by the reference numeral 10, are slidingly accommodated in said slots.
- the secondary sinkers 10 are slideable inside the slots 6 and are kept in position by a strip 11 that runs longitudinally with respect to the extension of the needle holders, so as to keep all the secondary sinkers in position.
- the secondary sinkers 10 have a foot 12 inclined with respect to the central portion or stem 13 of the secondary sinker and ending with an engagement end 14 having the purpose of engaging the stitch being formed in order to facilitate the formation and casting-off of the stitches.
- a heel 15 is formed at the opposite end and engages means, generally designated by the reference numeral 20, for positioning the secondary sinkers; as more clearly shown in figures 2 to 4, said means are advantageously constituted by cam sliders 21 that support the cams 22, which engage, during the stroke of the carriage, the heels 15 and can be positioned by virtue of the presence of a positioning pin 23 engageable in contoured slots 24 formed on a bar 25 movable by virtue of the action of motor means 27 that drive a gear 28 engageable with a rack-like portion 29 formed by one edge of the bar 25.
- the contoured slots 24 in practice change the position of the cam sliders 21 and consequently allow to vary the position of the secondary sinkers.
- figure 2 illustrates the position of the cams for placing the secondary sinkers in the active position during the stroke of the carriage in one direction
- figure 3 illustrates the position of the cam sliders 21 for positioning the secondary sinkers during the stroke of the carriage in the other direction.
- Figure 4 illustrates the position of the cam sliders 21 for keeping the sinkers in the deactivated, i.e. raised, position.
- the motor means 27 can be activated independently on the two needle holders and can be actuated directly during the stroke of the carriage with a program that can vary in each instance.
- Another important aspect of the invention resides in the fact that the sinkers 10 are provided with elastic means for stably positioning them.
- Said elastic means are formed directly on the stem 13 of the secondary sinker and are constituted by a flexible tab 30 formed by a recess 31 in the material constituting the stem 13.
- the flexible tab 30 has a loose end 32 and a concave portion 33 towards the leading region; these parts are engageable with an abutment element 35 formed in the slot.
- the secondary sinker When the end 32 engages the element 35, the secondary sinker is in the raised position and therefore is in practice deactivated, whereas when the element 35 engages the concave portion 33 the secondary sinker is in the lowered position and therefore in the preset knitting position.
- the particular structure of the secondary sinkers, provided with the flexible tab 30, allows to obtain a stable position for said secondary sinkers.
- the materials employed, as well as the contingent shapes and dimensions may be any according to the requirements.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
- Details Of Garments (AREA)
- Outer Garments And Coats (AREA)
Claims (6)
- Machine à tricoter à barre droite avec un moyen pour faciliter la formation et l'arrêt des boucles, comprenant deux teneurs d'aiguilles (1, 2) ayant une forme de V inversé et sur lesquels des aiguilles (3) sont montées en glissement, et au moins un teneur d'aiguille supplémentaire (4, 5) situé sur au moins un desdits teneurs d'aiguilles (1, 2) et formant une pluralité de fentes (6) dans lesquelles des platines secondaires (10) pour faciliter la formation et l'arrêt des boucles peuvent être placées, lesdites platines secondaires (10) pouvant glisser transversalement par rapport auxdites aiguilles (3), caractérisée en ce qu'elle comprend un moyen de positionnement (20) de platines secondaires, supporté par le chariot de la machine et actionnable par un moteur (27), qui peut être activé indépendamment pendant la course dudit chariot.
- Machine à tricoter à barre droite selon la revendication 1, caractérisée en ce que ledit moyen de positionnement de platines secondaires (20) comprend des coulisses (21) de cames supportant des cames (22) qui peuvent engager le talon (15) desdites platines secondaires (10), lesdites coulisses de came (21) étant équipées d'une broche (23) engagée en glissement avec des fentes profilées (24) formées sur une barre mobile (25).
- Machine à tricoter à barre droite selon une ou plusieurs des revendications précédentes, caractérisée en ce que ledit moteur (27) agit sur ladite barre (25) de manière à la déplacer.
- Machine à tricoter à barre droite selon une ou plusieurs des revendications précédentes, caractérisée en ce que ledit moteur (27) agit sur une roue dentée (28) qui peut s'engrener avec une partie en forme de crémaillère (29) formée sur ladite barre (25).
- Machine à tricoter à barre droite selon la revendication 1, caractérisée en ce que les platines secondaires (10) ont un pied de fonctionnement (12) saillant avec un certain angle par rapport à une tige (13) de celles-ci, un moyen élastique (30) étant formé de manière monolithique avec ladite tige (13) et s'engageant avec un élément d'aboutement (35) formé rigidement dans lesdites fentes (6).
- Machine à tricoter à barre droite selon la revendication 5, caractérisée en ce que ledit moyen élastique (30) desdites platines secondaires (10) comprend une patte élastique formée par un creux (31) de ladite tige (13), ladite patte élastique (30) ayant une extrémité (32) de forme telle qu'elle engage ledit élément d'aboutement (35) pour retenir lesdites platines secondaires (10) dans une position désactivée et ayant une partie concave (33) dans une région médiane desdites pattes (30), pour positionner lesdites platines secondaires (10) dans la position active de tricotage.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI940900 | 1994-05-06 | ||
ITMI940900A IT1269644B (it) | 1994-05-06 | 1994-05-06 | Macchina rettilinea per maglieria con mezzi per facilitare la formazione e lo scarico delle maglie |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0681046A1 EP0681046A1 (fr) | 1995-11-08 |
EP0681046B1 true EP0681046B1 (fr) | 1998-10-21 |
Family
ID=11368852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95106082A Expired - Lifetime EP0681046B1 (fr) | 1994-05-06 | 1995-04-24 | Métier à tricoter rectiliqne avec des moyens pour faciliter la formation et l'abattage de mailles |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0681046B1 (fr) |
DE (1) | DE69505455D1 (fr) |
IT (1) | IT1269644B (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6978642B2 (en) | 2002-05-30 | 2005-12-27 | Shima Seiki Manufacturing Limited | Weft knitting machine with movable sinker device |
JP2014201861A (ja) * | 2013-04-08 | 2014-10-27 | 株式会社島精機製作所 | 可動シンカーを備える横編機 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3044373B2 (ja) * | 1997-09-12 | 2000-05-22 | 株式会社島精機製作所 | ループプレッサーを備えた横編機およびループプレッサーを用いた編地編成方法 |
RU2493301C2 (ru) * | 2011-09-16 | 2013-09-20 | Пай Лун Машинери Милл Ко., Лтд. | Устройство фонтуры плосковязальной машины |
CN103710842B (zh) * | 2013-12-26 | 2015-04-29 | 宁波慈星股份有限公司 | 横编机中的沉降片传动装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1458804A (fr) * | 1965-11-10 | 1966-03-04 | Solis Soc A R L | Dispositif pour commander les platines radiales d'un métier circulaire à tricoter les bas ou articles similaires, muni d'un cylindre animé d'un mouvement de va-et-vient pour la formation du talon et le cas échéant de la pointe |
DE3609539A1 (de) * | 1986-03-21 | 1987-10-01 | Stoll & Co H | Zweibettige flachstrickmaschine mit zwischen den nadeln angeordneten platinen |
EP0311564B1 (fr) * | 1987-10-08 | 1992-06-24 | Walter Neukomm | Métier à tricoter rectiligne |
CZ281695B6 (cs) * | 1992-11-02 | 1996-12-11 | Trustfin Akciová Společnost | Zařízení dvouválcového okrouhlého pletacího stroje |
-
1994
- 1994-05-06 IT ITMI940900A patent/IT1269644B/it active IP Right Grant
-
1995
- 1995-04-24 DE DE69505455T patent/DE69505455D1/de not_active Expired - Lifetime
- 1995-04-24 EP EP95106082A patent/EP0681046B1/fr not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6978642B2 (en) | 2002-05-30 | 2005-12-27 | Shima Seiki Manufacturing Limited | Weft knitting machine with movable sinker device |
JP2014201861A (ja) * | 2013-04-08 | 2014-10-27 | 株式会社島精機製作所 | 可動シンカーを備える横編機 |
Also Published As
Publication number | Publication date |
---|---|
ITMI940900A0 (it) | 1994-05-06 |
IT1269644B (it) | 1997-04-08 |
ITMI940900A1 (it) | 1995-11-06 |
DE69505455D1 (de) | 1998-11-26 |
EP0681046A1 (fr) | 1995-11-08 |
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