CH252727A

CH252727A - Circular loom.

Info

Publication number: CH252727A
Authority: CH
Inventors: Fayolle Marius
Original assignee: Fayolle Marius
Priority date: 1945-06-07
Filing date: 1945-09-14
Publication date: 1948-01-31

Description

Metier ä tisser eireulaire. Circular loom.

La presente invention a pour objet un metier a tisser circulaire dont la partie qui precede les organes de tissage proprement dits assare aux fils de chaine un deroulement ver tical de Was en haut, les ensouples etant pla cees ä, proximite du sol. The subject of the present invention is a circular weaving loom, the part of which precedes the actual weaving members assares the warp threads in a vertical unwinding from Was to the top, the beams being placed close to the ground.

Ce metier est, en outre, caracterise par ie Fait qu'il compo.rte deux ensouples disposees Sur ehevalets, de teile Sorte que, portant cha cune urie demi-chaine, eile s se fassent vis a-vis, soient placees symetriquement par rap port ä Faxe, eentral du metier, tournent en sens inverse 1.'une de 1'autre et ue chaeune des demi-chairies effectue, au sortir de son ensouple et avant de se redresser pour acce der ä un organe repartiteur assurant 1a for ma.tion du fourreau circulaire, un trajet rec tiligne horizontal Sur lequel est dispose un casse-chaine. This loom is, moreover, characterized by the fact that it comprises two beams arranged on beams, so that, each carrying a half-warp, they face each other, are placed symmetrically in relation to each other. port at Faxe, the center of the loom, turn in opposite directions to each other and each of the half-chairs performs, on leaving its beam and before straightening up to access a distributing device ensuring the shape of the .tion of the circular sheath, a rectilinear horizontal path On which is placed a chain breaker.

Dann une forme d'execution particuliere, 1e fr6in;ige des deux ensouples est assure par un dispositif auto-equilibreur constitue par deux Bordes de freivage Passant Sur des tain bours des ensouples et reliees entre elles par un ressort agissant ä la traction, de teile Sorte que, par raison de symetrie et en vertu de 1'aetion et de la reaction, les forces de frei na-,e qui naissent de 1a rotation des deux en souples et de 1'adherenee desdites cordes Sur leur.s tambours s'equilibrent toujours, danc demeurent toujours egales. Dann a particular form of execution, the first brake; ige of the two beams is ensured by a self-balancing device constituted by two Edges of freivage Passing On tain bours of the beams and connected to each other by a spring acting in traction, of such type. So that, by reason of symmetry and by virtue of the action and the reaction, the braking forces which arise from the rotation of the two flexible ones and from the adhesion of the said strings to their drums are always balance, therefore always remain equal.

Le de,ssin ei-a.nnexä represente, ä titre d'exemple, unü forme d'exeeution du metier faisant 1'objet de 1'invention. Fig. 1 est un Schema montrant la dis- position des deux ensouples et leur freivage auto-equilibre. The accompanying drawing represents, by way of example, a form of execution of the craft which is the subject of the invention. Fig. 1 is a diagram showing the arrangement of the two beams and their self-balancing crimping.

Fig. 2 est une vue de la dispositon d'en- semble de nette forme d'execution, 1'un des chevalets n'etant pas represente. Fig. 2 is a view of the overall arrangement of a clear form of execution, one of the trestles not being represented.

Fig. 3 represente, en perspective, 1'un des deux chevalets avec son ensouple et les diffe- rents organes qu'il comporte. Fig. 3 represents, in perspective, one of the two trestles with its beam and the various organs it comprises.

Comme indique dann ce qui precede, la chaine est divisee -en deux parties a' et a' d'egale longueur et de meme nombre de fils, ourdies de fagon identique Sur deux ensou- ples b' et b2. Ces ensouples sont placees vis- ä-vis l'une de 1'autre et 1e deroulement de leur chaine e'effectue dann 1e sens des flech-es x, de Sorte qu'elles tournent en sens inverse Tune de 1'autre (sens des fleches y). As indicated in the above, the warp is divided -into two parts a' and a' of equal length and the same number of threads, warped in the same way On two beams b' and b2. These beams are placed vis-a-vis one another and the unwinding of their warp is carried out in the direction of the arrows x, so that they turn in the opposite direction to one another (direction arrows y).

Le metier represente ne comportant que .deux ensouples alors que ce nombre est, en general, plus el.eve dann d'autres typen de me- tiers circulaires, presente 1'avantage d'offrir une plus Brande simplicite pour 1'ourdissage, de faciliter la manipulation de la chaine en cours de tissa.ge,, de conduire ä un metier dune plus Brande simplicite de eonstruction et d'un encombrement plus. reduit, d'un acces plus eommode et dann lequel un vaste espace, laisse libre entre les deux chevalets, permet d'y loger les organes d'entrainement et de con- tröle de marche. The loom shown having only two beams, whereas this number is generally higher in other types of circular looms, has the advantage of offering greater simplicity for warping, facilitate handling of the warp during weaving, leading to a loom with greater simplicity of construction and more bulk. reduced, with more convenient access and in which a vast space, left free between the two trestles, makes it possible to house the drive and running control components.

Sur des tambours c de ces ensouples. sont enroulees des Cordes de freinage, respective- ment dl et d`, dout une de leurs extremites On drums c of these beams. Braking Ropes are wound, respectively dl and d`, dout one of their ends

est reliee ä un point fixe e, taadis que leurs autres extremites sont reliks entre elles par un ressort f (fig. 1). Von congoit ainsi que si, pour une raison quelconque, 1'adherence dient ä augmenter Sur l'une des ensouples, bl par egemple, il y a appel de la Corde vers cette derniere (sein de la fleche z), ce qui augmente dann une meme Proportion 1e frei nage Sur 1'autre ensouple (b' dann 1'exem ple choisi), assurant ainei un auto-equilibrage des freinages respectifs, donc une tension uni forme aux deux demi-chaines a' et a'. is connected to a fixed point e, while their other ends are connected together by a spring f (fig. 1). It is thus understood that if, for any reason, the adhesion has to increase the same Proportion of the 1st braking On the other beam (b' in the example chosen), thus ensuring self-balancing of the respective braking, therefore a uniform tension on the two half-warps a' and a' .

La fig.2 represente une realisation pra-_ tique du dispositif auto-equilibreur danS la quelle 1'action du ressort f Sur les Cordes d', d' s'effectue par 1'intermediaire de leviers amplificateurs g', g' dont an peut faire va rier la longueur utile. Un voit egalement que la longueur des Cordes est ajustable au moyen de tourniquets hl, h' du genre .des cabestans. Fig.2 represents a practical embodiment of the self-balancing device in which the action of the spring on the Strings d', d' is effected by means of amplifier levers g', g' of which an can make will laugh the useful length. One also sees that the length of the Ropes is adjustable by means of turnstiles hl, h' of the kind of capstans.

Chacune des enso#uples est supportee par un chevalet i comportant des Barres f et j' servant ä detourner chaque demi-chaine avant quelle ne s'kale et ne monte en un fuseau demi-tubulaire. Dann 1e trajet horizontal et rectiligne que subit chacune des demi chaines, elle, est en tont point assimilable ä une chaine de metier ä Esser rectiligne et est ainsi apte ä recevoir un cmse-chaine d'un type courant pour ees metiers" tel qu'ä la melles nz agissant Sur une barre-electrode n. Each of the beams is supported by a trestle i comprising bars f and j' serving to deflect each half-chain before it sways and rises into a half-tubular spindle. In the first horizontal and rectilinear path that each of the half-chains undergoes, it is in all respects comparable to a rectilinear Esser loom chain and is thus able to receive a cmse-chain of a common type for these looms "such as at the melles nz acting on an electrode bar n.

Dann cette Partie de la chaine est 6gale ment placee une envergure o, comme dann les mehers rectilignes. In this Part of the chain is also placed a span o, as in the straight mehers.

A noter que la Barre j' de chaque cheva let se trouve situee ä une distance de faxe du melier egale au quart du diametre du fourreau tubulaire, de telle sürte que les angles extremes -a1 et a2 imposes; aux fils par rapport ä la verticale en certains points' ,de la chaine soient ggaux, Position imposant ä ees fils extremes la fat'`igue minimum. It should be noted that the bar j' of each bridge is located at a fax distance from the melier equal to a quarter of the diameter of the tubular sheath, so that the extreme angles -a1 and a2 are imposed; the wires in relation to the vertical at certain points of the warp are equal. Position imposing minimum fatigue on the extreme wires.

En ce qui concerne 1'ürgane repartiteur P, il est avantageusement constitue dune plu ralfite ,d'elements p', p', p3... en forme de pla quettes rectangulaires ou en forme de sec- teurs de couronne, mais de Faible longueur et disposgs en cercle les uns ä la Suite :des autres de fagon facilement amovible Sur un Support circulaire. In as regards the distributor P, it is advantageously made up of a plurality of elements p', p', p3... in the form of plates rectangular or in the form of crown sectors, but of short length and arranged in a circle one after the other in an easily removable fashion on a circular support.

Le piquage se trouve ains.i grandement facilite du Fait qu'il est possible,_ apres de- montage de Ces elements p', p', p3, etc., de les disposer ä volonte en ligne Sur une table plack ä proximite de 1'ensouple inte- ressee. Ces elements rgpartiteurs peuvent etre congus sofft sous forme de peignes de tissage, sofft sous forme de plaquettes per foreee. The stitching is thus greatly facilitated by the fact that it is possible, after disassembling these elements p', p', p3, etc., to arrange them as desired in line On a table placed near the beam concerned. These distributing elements can be designed sofft in the form of weaving reeds, sofft in the form of perforated platelets.

Claims

CLAIM Circular weaving loom, the part of which precedes the weaving elements proper ensures that the warp threads unwind vertically, from bottom to top, the beams kant placed close to the eol, characterized by the fact that it comprises two beams arranged on trestles, in such a way that, each carrying a half-warp, they face each other, are placed symmetrically with respect to the central axis of the beam and turn in the opposite direction, one by 1 the other, and that each of the half-chains performs, on leaving its beam and before straightening up to accMer with a distributing member ensuring the formation of the circular sheath, a horizontal rectilinear path on which is arranged a chain-ease. SUB-CLAIM Circular weaving loom according to claim, characterized in that the braking of the two beams is ensured by a self-balancing device constituted by two Freivage Cords Passing Over the drums of the beams and connected between them by a spring acting upon traction, so that, for reasons of symmetry and by virtue of the action and the reaction, the braking forces which arise from the rotation of the two beams and from the adhesive of the said Strings On their drums, always balance each other, therefore always remain equal.