WO1983003854A1 - Systeme utilise dans des metiers jacquard - Google Patents

Systeme utilise dans des metiers jacquard Download PDF

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Publication number
WO1983003854A1
WO1983003854A1 PCT/SE1983/000160 SE8300160W WO8303854A1 WO 1983003854 A1 WO1983003854 A1 WO 1983003854A1 SE 8300160 W SE8300160 W SE 8300160W WO 8303854 A1 WO8303854 A1 WO 8303854A1
Authority
WO
WIPO (PCT)
Prior art keywords
yarn guiding
spring
guiding means
spring tension
sinkers
Prior art date
Application number
PCT/SE1983/000160
Other languages
English (en)
Inventor
William Eger Nyboe Lauritsen
Original Assignee
William Eger Nyboe Lauritsen
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by William Eger Nyboe Lauritsen filed Critical William Eger Nyboe Lauritsen
Publication of WO1983003854A1 publication Critical patent/WO1983003854A1/fr

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

Definitions

  • the present invention relates to a system for use in jacguard machines and the like, including a large number of yarn guide members, sinkers, healds, needles or the like actuable by means of selecting members and operating means and movable between predetermined posi ⁇ tions.
  • the spring power in the acceleration and retardation springs for acceleration and braking, catching of the sinkers in the bottom shed and top shed positions, respectively, within certain limits can be set in response to the downwardly directed pull acting upon the sinkers via the harness threads.
  • This pull can vary from one weaving machine to another depending on the sum of downwardly directed pull forces in as much as different numbers of harness threads with their heddles or healds and counter pull springs.
  • Rub ⁇ ber springs can be connected to each sinker.
  • the object of the invention is to provide a system overcoming said inconveniences and ensuring a smooth safe running for the machine.
  • the essential characteristic of the system of the invention is that the yarn guiding means, the sinkers. the healds, the needles or the like are adapted when reaching predetermined positions to come into, engage ⁇ ment with resilient means so as to be subjected to pull or stretching action whereby a section of the yarn guiding means or the like situated between said resi ⁇ lient means and a section of the yarn guiding means en ⁇ gaging the operating means will be kept stretched.
  • Fig. 1 is a schematical side view showing in prin ⁇ ciple a jacquard machine with the system of the inven ⁇ tion;
  • Fig. 2 shows partly in section and on a larger scale a coupling unit connecting a sinker and a harness thread or the like;
  • Fig. 3 shows, likewise on a larger scale, a broken- out portion of the upper spring tension member of Fig, 1 in cross-section on line A-A in Fig. 4;
  • Fig. 4 shows the same in longitudinal section
  • Fig. 5 shows a broken-out portion of Fig. 4
  • Fig. 6 is a top view showing, on a still larger scale, details from Figs. 3 and 4.
  • the drawing Fig. 1 is an overall side view showing schematically and in principle, on a largly reduced scale, a jacquard machine which ⁇ " accordance with the invention is provided with manually adjustable acceleration/re ⁇ tardation spring tension means 3, 4, I, II, III, and IV for collective setting of acceleration and retardation springs 8, 9 which are placed in such a way relative ' to the sinkers 2 and the sinker guiding or selecting means 25, 26 respectively - according to my Swedish Patent Application No. 7808898-6 and the sinker operating means A and B according to my Swedish Patent No. 396 098 and Patent Application No. 7808771 - as to obtain satisfac- tory cooperation between these different elements and an adequate power transmission within the sinkers at full s normal working speed and for the weaving machine/jacquard machine or for the fabric quality that can be produced in the weaving machine.
  • Fig...1 four spring tension means are designa ⁇ ted by I, II, III and IV and out of these two and two, viz. respectively I, II and III, IV - are setting means for the spring tension means 3 and 4.
  • I, II and III, IV setting means for the spring tension means 3 and 4.
  • the construc- tion of the means I, II, III and IV is identical and for greater clarity the latter three have not been provided with any reference numerals in Fig. 1.
  • the spring tension means 3 and 4 which in their simplest embodiment may consist of two relatively mov- able perforated plates reinforced by bars being verti ⁇ cally oriented thereto or - as will be described below - may be designed according to Figs. 3, 4, 5 and 6, are . suspended in beams I , II , and IV via screw connec ⁇ tions and link systems I_, I , I mounted each on one side of a so-called sinker package. Each of the setting means I, II, III and VII is in turn suspended in an ec- center mechanism I_ I-. and mounted each on one shaft I, , in pairs on either side of the sinker system.
  • the spring tension means 3 and 4 carry, on their two opposite sides, rolls I a , H , H O / lV fi running vertically along sup ⁇ porting bars I , II Q , IIL, IV n whereby the means 3 and y y y y y
  • a further simple manner of collectively changing the spring tension is obtained as the spring tension means I, II, III and IV are eccentrically borne on the shafts I, , II, , III. and IV, , the adjustment of the springs being obtained by different turning of the latter.
  • Such a temporarily varying lower spring tension would be ob ⁇ tained e.g. by electrical step motors (not shown) driving said shafts in one direction or the other to various positions between the manually set maximum tension value - i.e. the value adjusted to the working speed normal to the weaving machine/jacquard machine - and an oppo ⁇ site minimum value.
  • the shafts can in this connection move at most a half revolution between positions for mi ⁇ nimum tension in the springs designated 8 and 9, corre- sponding to the distances S and S,.
  • the step motors can obtain their control impulses from e.g. electrically active dynamic potentiometers, dynamometers or the like inertia sensing means attached e.g. to the sinker ope ⁇ rating means A and B.
  • the acceleration and retardation springs 8 and 9 accelerate and brake the sinkers in their opposite end positions because the springs and the spring tension means 3 and 4 are placed at the uppermost and lowermost positions of the sinker ends.
  • the springs 8 and 9 are compressed between the spring tension means 3 and 4, respectively, and at abutment means 10 and 11 respectively attached to both ends of each sinker by means of a snap lock device 10, 11, 12, 13, 14 shown in Fig. 2.
  • the snap lock device includes an abutment sleeve body 12 and a U-shaped means 12 at a longer shank pro- vided with a hook-shaped end portion 12.
  • At the one end portion of the abutment sleeve body 11 is an eccentri ⁇ cally situated axial bore 11 1 and a shorter shank 12_ is inserted therein to keep said U-shaped means in po- sition.
  • the longer shank provided with the hook-shaped end portion 12 1 extends along an axial slit towards and into a centrical bottom bore 11- at the opposite sleeve body end.
  • a tangential recess 14 Arranged inwardly of the slit in the portion of the sleeve body 11 situated beyond the bottom of the last-mentioned bore 11- is a tangential recess 14.
  • the bent-over end of the sinker 2 is intended to be inserted into the bore 11- where it is snap locked by the hook-shaped end 12.. being snapped over it.
  • the U-bent end portion 12, of the means 12 is adapted to serve as an attachment eye for a harness strap or for harness threads 15.
  • Figs. 3 and 4 show, on an approximately natural scale, parts of an embodiment of the schematically il ⁇ lustrated spring tension means 3 and 4 in Fig. 1.
  • Figs. 3 and 4 show only the uppermost spring tension means 3 but since the two spring tension means 3 and 4 can be of identical design numeral 4 corresponding to the bore or plate 4 in Fig. 1 has been put within parentheses.
  • the spring tension means 3 and 4 in Fig. 1 symbo- lize the supporting bars 3a (4a) , .3b (4b) , 3c (4c) and 3d (4d) on which the spring tension means proper, de ⁇ signated 18, are borne.
  • the spring tension means 18 in ⁇ clude vertically positioned angle or L-bars of such a height that sufficient bending strength will be obtained.
  • the angle bars are at their ends formed with lower por ⁇ tions 19 which rest in openings formed between the ver ⁇ tically and angularily adjustable support bars 3a (4a) , 3b (4b), 3c (4c) and 3d (4d) .
  • the angle bars 18 rest substantially on the support bars 3a (4a) and 3d (4d) which, in turn, are suspended in the spring tension means I, II, III and IV as shown in Fig. 1.
  • the lower outer ends of the angle or L-bars extend through parallel ver ⁇ tical slits 20 in bars 22, 23 fixedly mounted on the outside of the support bars in the machine and in this way they can maintain their equal interspaces and ver- ticality independently of vertical displacement.
  • Another angle or L-shaped locking bar 17 bears against one portion, the narrower one, at the top of the angle bar 18.
  • the lock bar is at even intervals per ⁇ forated with oblong holes 16 which are shown in Figs. 3 and 5. These oblong holes correspond with similar holes in the spring tension bar 18. By displacement of the lock bar 17 round holes are formed in which the sinkers 2 move up and down.
  • Fig. 6 is a top view showing the support bars 4b and 4c and the sinkers 2, which are indicated by black dots, acceleration and retardation springs 8 and oblong holes 16 in lock bars 17 on the top of spring tension bars 18. Further the fixed, bars 22, 23 with the parallel slits 21 indicated by broken lines can be seen.
  • the fi ⁇ gure also shows a cross-section through air impulse channels 27, of which only ' two are partly shown in Fig. 4. These channels extend across the uppermost spring tension means 3 in Fig. 1 with its spring tension bars 18 according to Fig. 4, said channel 27 being vertical- ly mounted in rows in the openings between each spring

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Knitting Machines (AREA)

Abstract

Système utilisé dans des métiers Jacquard et autres machines similaires, comprenant un grand nombre de dispositifs de guidage du fil, de platines, de lames de harnais, d'aiguilles ou autres pouvant être actionnés par des moyens de sélection et des moyens d'actionnement et sont mobiles entre des positions prédéterminées. La caractéristique de ce système réside dans le fait que les moyens de guidage des fils, les platines, les lames de harnais, les aiguilles ou autres (2) sont adaptés, lorsqu'ils atteignent les positions prédéterminées, pour s'engager avec des dispositifs à ressort (8, 9) pour être étirés de sorte qu'une section des dispositifs de guidage du fil ou autres dispositifs situés entre les moyens à ressorts et à dispositifs d'actionnement d'engagement est maintenue dans un état étiré.
PCT/SE1983/000160 1982-04-22 1983-04-22 Systeme utilise dans des metiers jacquard WO1983003854A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8202527-1 1982-04-22
SE8202527 1982-04-22

Publications (1)

Publication Number Publication Date
WO1983003854A1 true WO1983003854A1 (fr) 1983-11-10

Family

ID=20346602

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1983/000160 WO1983003854A1 (fr) 1982-04-22 1983-04-22 Systeme utilise dans des metiers jacquard

Country Status (2)

Country Link
EP (1) EP0093104A3 (fr)
WO (1) WO1983003854A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0534397A1 (fr) * 1991-09-23 1993-03-31 Grosse Webereimaschinen GmbH Mécanique jacquard pour tissu éponge à un seul châssis

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE396098B (sv) * 1973-03-05 1977-09-05 Lauritzen William Eger Nyboe Anordning for mekanisk manovrering av trad- eller garnstyrningsorgan

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1398613A (en) * 1971-06-09 1975-06-25 Lauritsen W E N Shedding motion apparatus for looms

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE396098B (sv) * 1973-03-05 1977-09-05 Lauritzen William Eger Nyboe Anordning for mekanisk manovrering av trad- eller garnstyrningsorgan

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0534397A1 (fr) * 1991-09-23 1993-03-31 Grosse Webereimaschinen GmbH Mécanique jacquard pour tissu éponge à un seul châssis

Also Published As

Publication number Publication date
EP0093104A2 (fr) 1983-11-02
EP0093104A3 (fr) 1985-07-31

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