EP1433882A1 - Organe de guidage pour harnais jacquard, et procédé de fabrication d'un tel organe - Google Patents
Organe de guidage pour harnais jacquard, et procédé de fabrication d'un tel organe Download PDFInfo
- Publication number
- EP1433882A1 EP1433882A1 EP03356212A EP03356212A EP1433882A1 EP 1433882 A1 EP1433882 A1 EP 1433882A1 EP 03356212 A EP03356212 A EP 03356212A EP 03356212 A EP03356212 A EP 03356212A EP 1433882 A1 EP1433882 A1 EP 1433882A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- holes
- angle
- hole
- drilled
- jacquard
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 238000005553 drilling Methods 0.000 claims description 14
- 210000000056 organ Anatomy 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 4
- 238000009941 weaving Methods 0.000 claims description 4
- 238000012795 verification Methods 0.000 claims description 2
- 241001080024 Telles Species 0.000 description 3
- 238000013021 overheating Methods 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007704 transition Effects 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
- D03C3/38—Comber boards
-
- 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
- D03C3/42—Arrangements of lifting-cords
Definitions
- the invention relates to a wire guide member yoke of a Jacquard type loom harness.
- the invention also relates to a Jacquard harness incorporating such an organ, as well as a method of manufacture of such an organ.
- the invention finally relates to a weaving loom comprising such an organ and / or such harness.
- the invention relates to a guiding the yoke yarns of a loom harness Jacquard type, this body being generally planar and provided with through holes for these wires, characterized in that at least one of these holes extends in a direction oblique to a main plane of this organ.
- the oblique nature of the hole (s) of the organ guide which is advantageously a grouting board or a hole board, the friction forces at the level from the top edge of the oblique hole (s) are significantly reduced thanks to a distribution of the angle of change of direction between the upper strands and lower arch wires.
- the main plan of the organ guide is, in practice, substantially parallel to the trade chain.
- the invention also relates to a loom harness Jacquard type weave which comprises at least one organ for guidance as previously described.
- the invention further relates to a weaving loom.
- a weaving loom comprising at least one guide member and / or a harness as previously described.
- Such a profession can operate at high speed, without excessive wear of his arcade sons.
- steps a), b) and c) or a ') and b') can be implemented for all holes before begins drilling. Position parameters and of the inclination of the holes are then memorized during each step a), b) or c), which facilitates the control of interference and the possible adjustment of these parameters.
- the loom M shown in Figure 1 is equipped with a mechanical Jacquard 10 supported by a non-superstructure represented above a zone Z in which are moved the eyelets 11 of heddles 12, these eyelets being crossed by the chain son 13 of the trade.
- the rails are animated by a substantially vertical oscillation movement represented by the double arrow F 1 .
- the beams are subjected to tensile forces F 2 and F 3 respectively exerted by the yoke 20 and by springs 21 fixed to the frame 22 of the loom M.
- the yoke wires 20 belonging to a harness H are mechanically controlled 10 and each follow a path between this mechanism and the associated beam 12.
- the journey of each wire 10 is defined by a board with holes 30, arranged near the mechanical 10, and by a board drip tray 40, disposed above zone Z and at a relatively low height compared to this.
- the elements 30 and 40 constitute guide members for son 20.
- the board 30 is provided with holes 31 for passage of the son 20.
- the board 40 is also provided with holes 41 for the passage of the wires 20. According to the invention, these holes are not all perpendicular to a median plane P 40 relative to the board 40, this plane P 40 being a main plane of the board 40, horizontal when the latter is installed, as shown in FIG. 1.
- the hole 41 shown in this figure extends in the direction of an axis X 41 which makes an angle ⁇ 41 less than 90 ° relative to the plane P 40 in the plane of FIG. 2 which contains the upper 23 and lower 24 strands of the wire 20.
- the upper strand 23 of the wire 20 is the strand which extends above the board 40, that is to say between the mechanics 10 and this board, passing through the board 30.
- the lower strand 24 is the strand which extends between the board 40 and the heddle 12 associated with the wire 20.
- An intermediate strand 25 is disposed inside the hole 41, bearing against its lateral surface 41 a . Depending on the movements of the wire 20, the parts of this wire constituting the strands 23 to 25 vary.
- the strand 25 makes a substantially identical angle with each of strands 23 and 24.
- the reaction force R exerted by the board 40 on the wire 20 depends on the force F 6 and is distributed essentially at the level of the two upper 41 b and lower 41 c edges of the hole 41.
- the force undergone by the wire 20 at the transition zones between the strands 23 and 25 on the one hand, 24 and 25 on the other hand has an intensity equal to approximately half of the force R.
- the reaction force R is distributed between the edges 41 b and 41 c .
- Each of the components of this effort exerted at these edges has an intensity lower than that of this effort.
- the inclined nature of the hole 41 makes it possible to distribute the intensity of the effort over two edge zones undergone locally by the arch wire 20 with a board classic, which increases its lifetime.
- the direction of the axis X 41 is chosen so that it is perpendicular to the bisector of two straight lines D 23 and D 24 centered on the strands 23 and 24 of the wire 20.
- This particular orientation of the hole 41 allows an optimized distribution of the reaction and friction forces.
- the angle ⁇ between the strand 23 and the axis X 41 in FIG. 2 is less than the angle ⁇ corresponding to FIG. 3, this angle ⁇ being in fact equal to the angle between the upper strand of the yoke and an axis ZZ 'perpendicular to the plane P 140 .
- edges 41 b and 41 c of the hole 41 are usually rounded to limit the stresses at their respective levels.
- the board 40 is manufactured as a function of the harness H to which it will belong. More specifically, when the number of wires of the harness H is known and when the type and position of the mechanism 10 and of the board 30 are known, the spatial distribution of the upper strands 23 of the wires 20 can be calculated, which makes it possible to determine their respective angles ⁇ 23 relative to the plane P 40 . It is then possible to determine, in particular by calculation using a computer, for each hole 41, its angle of inclination ⁇ 41 relative to the plane P 40 , as a function of its position and of the angle ⁇ 23 previously determined. .
- the angle ⁇ 41 can be determined for each hole 41, which makes it possible to precisely adapt the orientation of these holes to the desired configuration of the harness.
- the angle ⁇ 41 can be equal to 90 °.
- angles ⁇ 41 , ⁇ 42 or ⁇ 43 are adapted to reduce the deviation at the level of the upper edge of the holes 41. In practice, they can be chosen according to an average , on each zone, optimal angles described above.
- the grouting board 240 can be formed of two plates 242 and 243 in each of which are respectively provided with holes 241 and 241 'for passage of yoke 220. Between the two plates 242 and 243 is defined a volume V connected to a source S of air under pressure, allowing air to flow from the volume V outwards, as shown by the arrows E. This makes it possible to permanently clean the holes 241.
- these holes extend in the direction of axes X 241 and X 241 ' which are oblique with respect to the median plane P 240 of the board 240.
- each wire 220 successively crosses a hole 241 and a hole 241 'and that the angle ⁇ 241 or ⁇ 241 , of the axes X 241 and X' 241 of these two holes relative to the plane P 240 is not necessarily the same.
- a grouting board 340 can be made so that two holes 341 and 341 'are arranged directly in the extension of one another with axes X 341 and X 341' oblique by relative to a median plane P 340 of the board 340, their angles of obliqueness ⁇ 341 and ⁇ 341 ' being different.
- the arch wire 320 then changes direction in the thickness of the board 340 from one of the holes to the other.
- the invention has been shown during its implementation with a grouting board. It could also be implementation at the level of the hole board 30 shown in Figure 1.
- holes 241 and 241 'of the embodiment of Figure 5 can each be made as the double hole of the FIG. 6, in which case the arch wire is subjected, in total, to six successive deviations.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
- Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
- Details Of Indoor Wiring (AREA)
- Polymerisation Methods In General (AREA)
- Woven Fabrics (AREA)
Abstract
Description
- La direction oblique du trou est telle que l'angle entre un brin supérieur, qui s'étend entre une mécanique Jacquard et l'organe de guidage, d'un fil d'arcade et la direction du trou a une valeur inférieure à celle de l'angle entre ce brin et un axe orthogonal à ce plan.
- La direction oblique du trou est globalement orthogonale à la bissectrice des brins supérieur et inférieur du fil d'arcade qui s'étendent, respectivement, entre une mécanique Jacquard et l'organe précité et entre cet organe et une lisse commandée par ce fil, cette direction étant globalement coplanaire avec ces brins.
- Plusieurs trous s'étendent selon des directions obliques différentes par rapport au plan principal de l'organe. Ceci permet d'adapter la direction des trous à la répartition spatiale des brins des fils d'arcade, au-dessus et au-dessous de cet organe. On peut également prévoir que les trous sont répartis sur cet organe par zones dans chacune desquelles les trous s'étendent selon des directions faisant globalement le même angle avec le plan principal précité, cet angle étant différent d'une zone à une autre. Cette disposition consiste à prévoir, dans une même zone, des perçages sensiblement identiques dont l'obliquité présente une valeur moyenne telle qu'elle réduit les déviations d'arcades les plus critiques tout en augmentant les déviations les plus faibles. Il s'agit là d'un compromis positif.
- Les trous sont disposés de telle sorte qu'au moins un fil d'arcade traverse deux trous, l'un au moins de ces deux trous s'étendant selon une direction oblique par rapport au plan principal. Dans ce cas, on peut prévoir que les angles d'obliquité de ces deux trous sont différents. On peut également prévoir que ces deux trous communiquent avec au moins un volume apte à être mis en surpression par son alimentation à partir d'une source de gaz sous pression, ces trous constituant alors des orifices de sorties du gaz par rapport à ce volume.
- a) déterminer la position théorique d'un trou de cet organe ;
- b) calculer, pour ce trou, l'angle d'inclinaison d'un brin du fil d'arcade traversant ce trou ;
- c) déterminer, pour ce trou, un angle de perçage en fonction de l'angle d'inclinaison calculé précédemment et de la position des trous voisins, percés ou à percer, et
- d) percer ce trou selon l'angle déterminé dans l'étape précédente.
- a') diviser l'organe de guidage en plusieurs zones dans lesquelles sont percés des trous de passage des fils ;
- b') déterminer pour chaque trou, la zone à laquelle il appartient et
- c') percer ce trou selon un angle de perçage oblique par rapport à un plan principal de cet organe, cet angle étant identique pour tous les trous d'une même zone et différent d'une zone à une autre.
- e) on vérifie que le trou, percé selon l'angle déterminé à l'étape c) ou du fait de l'appartenance du trou à une zone, est compatible avec les trous voisins, déjà percés ou à percer, et l'on adapte éventuellement les paramètres relatifs à la position du trou et l'angle de perçage en fonction du résultat de la vérification.
- la figure 1 est une représentation schématique de principe d'un harnais Jacquard conforme à l'invention monté sur un métier à tisser ;
- la figure 2 est une vue à plus grande échelle du détail II à la figure 1 ;
- la figure 3 est une vue analogue à la figure 2 mais à plus petite échelle pour un dispositif de l'art antérieur ;
- la figure 4 est une représentation schématique partielle de la planche d'empoutage représentée à la figure 1 ;
- la figure 5 est une vue analogue à la figure 3 pour une planche d'empoutage conforme à un second mode de réalisation de l'invention et
- la figure 6 est une vue analogue à la figure 3 pour une planche d'empoutage conforme à un troisième mode de réalisation de l'invention.
Claims (14)
- Organe de guidage des fils d'arcade d'un harnais de métier à tisser de type Jacquard, ledit organe étant globalement plan et pourvu de trous de passage desdits fils, caractérisé en ce que l'un au moins desdits trous (41 ; 241, 241' ; 341, 341') s'étend selon une direction (X41 ; X241, X241' ; X341, X341') oblique par rapport à un plan principal (P40 ; P240 ; P340) dudit organe (40 ; 240 ; 340).
- Organe selon la revendication 1, caractérisé en ce que la direction oblique (X41) dudit trou (41) est telle que l'angle (β) entre un brin supérieur (23), qui s'étend entre une mécanique Jacquard (10) et ledit organe (40), d'un fil d'arcade (20) et ladite direction a une valeur inférieure à celle de l'angle (γ) entre ledit brin supérieur et un axe (Z-Z') orthogonal audit plan (P40).
- Organe selon l'une des revendications précédentes, caractérisé en ce que la direction oblique (X41) dudit trou (41) est globalement orthogonale à la bissectrice (B) des brins supérieur (23) et inférieur (24) dudit fil d'arcade (20) qui s'étendent, respectivement, entre une mécanique Jacquard (10) et ledit organe (40) et entre ledit organe et une lisse (12) commandée par ledit fil, ladite direction étant également globalement coplanaire avec lesdits brins.
- Organe selon l'une des revendications précédentes, caractérisé en ce que plusieurs trous (41 ; 241, 241' ; 341, 341') s'étendent selon des directions obliques différentes (X41 ; X241, X241' ; X341' X341') par rapport audit plan principal (P40 ; P240 ; P340) dudit organe (40 ; 240 ; 340).
- Organe selon la revendication 4, caractérisé en ce que lesdits trous (41) sont répartis sur ledit organe par zones (Z1, Z2, Z3) dans chacune desquelles lesdits trous s'étendent selon des directions (X41' X42, X43) faisant globalement le même angle (α41, α42, α43) avec ledit plan (P40) , ledit angle (α41, α42, α43) étant différent d'une zone (Z1, Z2, Z3) à une autre (Z3, Z2, Z1).
- Organe selon l'une des revendications précédentes, caractérisé en ce que lesdits trous (241, 241' ; 341, 341') sont disposés de telle sorte qu'au moins un fil d'arcade (220 ; 320) traverse deux trous, l'un au moins desdits deux trous s'étendant selon une direction (X241, X241' ; X341, X341') oblique par rapport audit plan principal (P240 ; P340).
- Organe selon la revendication 6, caractérisé en ce que les angles d'obliquité desdits deux trous (α241, α241' ; α341, α341') sont différents.
- Organe selon l'une des revendications 6 ou 7, caractérisé en ce que lesdits deux trous (241, 241') communiquent avec au moins un volume (V) apte à être mis en surpression par son alimentation à partir d'une source (S) de gaz sous pression, lesdits trous constituant des orifices de sortie (F6) du gaz par rapport audit volume.
- Harnais de métier à tisser (H) de type Jacquard comprenant des fils d'arcade (20 ; 220 ; 320) aptes à être commandés par une mécanique Jacquard (10) pour le déplacement de lisses (12), caractérisé en ce qu'il comprend au moins un organe de guidage (40 ; 240 ; 340) selon l'une des revendications précédentes.
- Métier à tisser de type Jacquard comprenant au moins un organe de guidage (40 ; 240 ; 340) selon l'une des revendications 1 à 8 et/ou un harnais (H) selon la revendication 9.
- Procédé de fabrication d'un organe de guidage des fils d'arcade d'un harnais de métier à tisser de type Jacquard, ledit organe étant globalement plan et pourvu de trous de passage desdits fils percés dans ledit organe, caractérisé en ce qu'il comprend des étapes consistant à :a) déterminer la position théorique d'un trou (41 ; 241, 241' ; 341, 341') dudit organe (40 ; 240 ; 340),b) calculer, pour ledit trou, l'angle d'inclinaison (23) d'un brin (23) du fil d'arcade (20 ; 220) traversant ledit trou,c) déterminer, pour ledit trou, un angle de perçage (α41 ; α241, α241' ; α341, α341') en fonction de l'angle d'inclinaison (23)calculé à l'étape b) et de la position des trous voisins déjà percés ou à percer,d) percer ledit trou selon l'angle déterminé à l'étape c).
- Procédé selon la revendication 11, caractérisé en qu'il consiste à mettre en oeuvre les étapes a) à c) entre les perçages successifs de deux trous (41 ; 241, 241' ; 341, 341') dudit organe (40 ; 240 ; 340), afin d'ajuster individuellement l'angle de perçage (α41 ; α241, α241' ; α341, α341') de chaque trou.
- Procédé de fabrication d'un organe de guidage des fils d'arcade d'un harnais de métier à tisser de type Jacquard, ledit organe étant globalement plan et pourvu de trous de passage desdits fils percés dans ledit organe, caractérisé en ce qu'il comprend des étapes consistant à :a') diviser ledit organe en plusieurs zones (Z1, Z2, Z3) dans lesquelles sont percés des trous (41) de passage desdits fils (20) ;b') déterminer, pour chaque trou, la zone à laquelle il appartient etc') percer ledit trou selon un angle de perçage (α41, α42, α43) oblique par rapport à un plan principal (P40) dudit organe, ledit angle étant identique pour tous les trous d'une même zone et différent d'une zone à une autre.
- Procédé selon l'une des revendications 11 à 13, caractérisé en ce qu'il comprend en outre une étape (e) mise en oeuvre entre les étapes c) et d) ou entre les étapes b') et c') dans laquelle :e) on vérifie que ledit trou (41 ; 241, 341), percé selon ledit angle (α41 ; α241, α241' ; α341, α341') ou du fait de l'appartenance du trou à une zone (Z1, Z2, Z3), est compatible avec les trous voisins, déjà percés ou à percer, et on adapte éventuellement les paramètres relatifs à la position dudit trou et ledit angle de perçage en fonction du résultat de la vérification.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0216663 | 2002-12-24 | ||
| FR0216663A FR2849066B1 (fr) | 2002-12-24 | 2002-12-24 | Organe de guidage, harnais jacquard incorporant un tel organe, procede de fabricaton d'un tel organe et metier a tisser comprenant un tel organe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1433882A1 true EP1433882A1 (fr) | 2004-06-30 |
| EP1433882B1 EP1433882B1 (fr) | 2007-01-24 |
Family
ID=32406510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03356212A Expired - Lifetime EP1433882B1 (fr) | 2002-12-24 | 2003-12-23 | Organe de guidage pour harnais jacquard, et procédé de fabrication d'un tel organe |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7168455B2 (fr) |
| EP (1) | EP1433882B1 (fr) |
| JP (1) | JP2004204425A (fr) |
| KR (1) | KR101076444B1 (fr) |
| CN (1) | CN100562615C (fr) |
| AT (1) | ATE352647T1 (fr) |
| DE (1) | DE60311402T2 (fr) |
| FR (1) | FR2849066B1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562357B (zh) * | 2015-01-15 | 2016-03-30 | 海宁市天一纺织有限公司 | 一种提花机的提刀组件 |
| CN104499143B (zh) * | 2015-01-15 | 2016-03-30 | 尹黎明 | 一种提花机中提刀组件的提刀 |
| CN113122986B (zh) * | 2021-03-29 | 2023-04-07 | 南京玻璃纤维研究设计院有限公司 | 一种超高密度开口装置 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB151761A (en) * | 1919-07-14 | 1920-10-07 | George Courtis Rutherford | Improvements relating to jacquards |
| US2078091A (en) * | 1935-08-27 | 1937-04-20 | Matthews Floyd | Comber guard for looms |
| GB1088044A (en) * | 1963-04-16 | 1967-10-18 | Peter Walker Blackburn Ltd | Improvements in or relating to jacquard machines |
| US3724512A (en) * | 1971-03-04 | 1973-04-03 | K Kohl | Jacquard mechanism |
| US20020185191A1 (en) * | 2001-06-08 | 2002-12-12 | Jean-Paul Froment | Guiding member, Jacquard harness and shed-forming device incorporating such a member and method for guiding the harness cords of a Jacquard loom |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US369565A (en) * | 1887-09-06 | Island | ||
| US373151A (en) * | 1887-11-15 | Harness-board for jacquard looms | ||
| US1527928A (en) * | 1924-04-21 | 1925-02-24 | Herbert V W Scott | Warp-thread plate |
| US1603480A (en) * | 1926-04-19 | 1926-10-19 | Crompton & Knowles Loom Works | Comber board for jacquard mechanism |
| FR2711997B1 (fr) | 1993-11-05 | 1997-12-26 | Cousin Freres Sa | Procédé de fabrication d'une drisse ou corde synthétique et produits obtenus selon ce procédé. |
-
2002
- 2002-12-24 FR FR0216663A patent/FR2849066B1/fr not_active Expired - Fee Related
-
2003
- 2003-12-22 JP JP2003424800A patent/JP2004204425A/ja active Pending
- 2003-12-23 KR KR1020030095432A patent/KR101076444B1/ko not_active Expired - Fee Related
- 2003-12-23 DE DE60311402T patent/DE60311402T2/de not_active Expired - Lifetime
- 2003-12-23 AT AT03356212T patent/ATE352647T1/de not_active IP Right Cessation
- 2003-12-23 US US10/742,954 patent/US7168455B2/en not_active Expired - Fee Related
- 2003-12-23 EP EP03356212A patent/EP1433882B1/fr not_active Expired - Lifetime
- 2003-12-23 CN CNB2003101230356A patent/CN100562615C/zh not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB151761A (en) * | 1919-07-14 | 1920-10-07 | George Courtis Rutherford | Improvements relating to jacquards |
| US2078091A (en) * | 1935-08-27 | 1937-04-20 | Matthews Floyd | Comber guard for looms |
| GB1088044A (en) * | 1963-04-16 | 1967-10-18 | Peter Walker Blackburn Ltd | Improvements in or relating to jacquard machines |
| US3724512A (en) * | 1971-03-04 | 1973-04-03 | K Kohl | Jacquard mechanism |
| US20020185191A1 (en) * | 2001-06-08 | 2002-12-12 | Jean-Paul Froment | Guiding member, Jacquard harness and shed-forming device incorporating such a member and method for guiding the harness cords of a Jacquard loom |
Also Published As
| Publication number | Publication date |
|---|---|
| DE60311402T2 (de) | 2007-11-08 |
| DE60311402D1 (de) | 2007-03-15 |
| FR2849066A1 (fr) | 2004-06-25 |
| CN1510187A (zh) | 2004-07-07 |
| EP1433882B1 (fr) | 2007-01-24 |
| CN100562615C (zh) | 2009-11-25 |
| FR2849066B1 (fr) | 2005-04-29 |
| KR20040058043A (ko) | 2004-07-03 |
| ATE352647T1 (de) | 2007-02-15 |
| JP2004204425A (ja) | 2004-07-22 |
| US7168455B2 (en) | 2007-01-30 |
| US20050274427A1 (en) | 2005-12-15 |
| KR101076444B1 (ko) | 2011-10-26 |
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