EP1431434A2 - Peigne de tissage - Google Patents

Peigne de tissage Download PDF

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Publication number
EP1431434A2
EP1431434A2 EP03024387A EP03024387A EP1431434A2 EP 1431434 A2 EP1431434 A2 EP 1431434A2 EP 03024387 A EP03024387 A EP 03024387A EP 03024387 A EP03024387 A EP 03024387A EP 1431434 A2 EP1431434 A2 EP 1431434A2
Authority
EP
European Patent Office
Prior art keywords
reed
dents
weft
dimension
inserting direction
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.)
Withdrawn
Application number
EP03024387A
Other languages
German (de)
English (en)
Other versions
EP1431434A3 (fr
Inventor
Akihiko Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tsudakoma Corp
Original Assignee
Tsudakoma Industrial Co Ltd
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 Tsudakoma Industrial Co Ltd filed Critical Tsudakoma Industrial Co Ltd
Publication of EP1431434A2 publication Critical patent/EP1431434A2/fr
Publication of EP1431434A3 publication Critical patent/EP1431434A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/60—Construction or operation of slay
    • D03D49/62—Reeds mounted on slay
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/277—Guide mechanisms
    • D03D47/278—Guide mechanisms for pneumatic looms

Definitions

  • the present invention relates to a reed for weaving such as a divided reed or a single reed to be used in a loom.
  • a loom produces a fabric by repeating the steps of: dividing a plurality of warps into a plurality of warp groups; forming a warp shed by vertically moving each warp group by means of a shedding device; and after having the weft run into the warp shed, beating the weft with a reed for weaving comprising a plurality of reed dents.
  • a reed is formed by combining a plurality of reed dents with each other such that their dented portions communicate to each other to form a guide groove for the weft.
  • Such reed can be applied to the loom in such forms as a single reed in which only one reed is used and a divided reed in which a plurality of reeds are used in combination.
  • the weft runs, upon receipt of a compressed fluid jetted from a plurality of subnozzles, meandering within the guide groove (between the upper face and lower face) of the divided reed.
  • the weft bursts out from the downstream side in the weft inserting direction of the divided reed on the upstream side in the weft inserting direction toward the divided reed on the downstream side in the weft inserting direction.
  • the running direction of the weft bursting out of the divided reed on the upstream side is dispersed between the upper face and the lower face of the guide groove.
  • the weft running direction tends to be dispersed.
  • An object of the present invention is to make a guide groove in which the weft running state between divided reeds is stable.
  • the reed according to the present invention may be applied to a so-called single reed with a plurality of reed dents assembled into upper and lower caps (fixing members) common to the plurality of reed dents, or may be applied to a so-called divided reed with a plurality of reed dents assembled into the upper and lower caps.
  • a plurality of reed dents each having a dented portion for guiding a weft are arranged so that the dented portions may be communicated to each other to form a guide groove for the weft.
  • the dimension between the upper and lower faces of the dented portions of the reed dents located at the end portion on the downstream side in the weft inserting direction is made smaller than the dimension between the upper and lower faces of the dented portion of the reed dents located in an intermediate portion between the end portions on the downstream side and the upstream side in the weft inserting direction.
  • the dimension between the upper and lower faces of the dented portions of the plurality of reed dents located at the end portion on the downstream side in the weft inserting direction is made larger gradually or stepwise toward the reed dents located in the intermediate portion to approach the dimension between the upper and lower faces of the dented portions of the reed dents located in the intermediate portion.
  • the reed dents which are located at the end portion on the downstream side in the weft inserting direction and of which the dimensions between the upper and lower faces of the dented portions are smaller than that of the reed dents located in the intermediate portion, can be disposed in the divided reed on the upstream side in the weft inserting direction, and the dimensions between the upper and lower faces of the dented portions of the reed dents of the reed disposed at downstream side located at the end portion on the upstream side in the weft inserting direction are gradually reduced toward the reed dents located in the intermediate portion to approach the dimension between the upper and lower faces of the dented portions of the reed dents located in the intermediate portion.
  • the weft can be surely delivered to the guide groove of the reeds disposed downstream in the weft inserting direction, thereby preventing a failure in weft insertion.
  • the reed dents located at the end portion on the downstream side in the weft inserting'direction may be disposed beyond the range of a weaving width.
  • the dented portions of the plurality of reed dents located at the end portion on the downstream side in the weft inserting direction can be prevented from catching on the warp.
  • the reed dents include a front end portion and a rear end portion, and the dimensions between the upper and lower faces of the dented portions of the reed dents located at the end portion on the downstream side in the weft inserting direction can be made such that the rear end side dented portions are larger than the front end side dented portions. This reduces the quantity of the compression fluid flowing in the guide groove to diffuse from the open portion of the guide groove, thereby enabling the weft to run efficiently.
  • a reed 10 for weaving is composed of a plurality of divided reeds.
  • a divided reed 12 of the first width, a divided reed 14 of the second width, and a divided reed 16 of the third (the last) width are arranged successively in an air jet loom.
  • the weft 18 is jetted from a weft insert nozzle 20 together with a compression fluid to be inserted into a warp shed.
  • the air is applied as the compression fluid, but another compression fluid will do.
  • a plurality of reed dents (reed tooth) 22 are arranged in parallel to each other at intervals in the weft inserting direction, and a guide groove 26 for the weft 18 is formed by dented portions 24 formed in the reed dents 22.
  • the guide groove 26 includes, as described later, an upstream groove portion and a downstream groove portion respectively formed by the dented portions 24 of the reed dents 22 located in ranges 28 and 30 at the end portions on the upstream and downstream sides in the weft inserting direction, and an intermediate groove portion formed by the dented portions 24 of the reed dents 22 located in an intermediate range 32 between the upstream and downstream end portions in the weft inserting direction.
  • each reed dent 22 of each divided reed 12, 14, 16 are formed like tie plates which are long in the vertical direction and have a substantially constant thickness.
  • Each reed dent 22 has its upper and lower end portions 34 and 34 rounded.
  • Each reed dent 22 has a front edge portion 36 as a cloth fell side and a rear edge portion 38 as a non-cloth-fell side.
  • Each reed dent 22 has a projected portion 40 around the center of the front edge portion 36, the projected portion 40 including a dented portion 24.
  • Each dented portion 24 has a one-side open rectangular shape with its corners rounded with its upper and lower faces 42 and 42 and a depth bottom portion (depth bottom face) 44.
  • the distance between the upper face 42 and the lower face 42 is a dimension L between the upper and lower faces of the dented portion 24.
  • the depth bottom portion 44 is around the same position as an extended line of the front edge portion 36 in the forward and backward direction. Also, the rear edge portion 38 of each reed dent 22 is made linear (i.e., flat) over the entire vertical direction of the reed dent 22.
  • Figs. 3 and 4 show the divided reed 14.
  • the divided reed 16 has a guide groove 26 of substantially the same shape as that of the divided reed 14.
  • the divided reed 12 has the guide groove 26 of a shape like that of the reed dents 14, 16, except the shape of the guide groove 26 mentioned below.
  • the divided reeds 12, 14 and 16 are formed by a plurality of reed dents 22, the upper and lower caps (attachment members) 46 and 48 which are respectively attached at the upper end portion 34 as well as the lower end portion 34 of the reed dents 22, and the right and left side caps (coupling members) 50 and 52 which respectively connect the upper and lower caps 46 and 48.
  • Each guide groove 26 is formed by making the dented portions 24 in the corresponding plurality of reed dents 22 communicate to the respective divided reeds 12, 14 and 16.
  • the reed dents 22 of each divided reed 12, 14, 16 have their upper end portions 34 and the lower end portions 34 respectively inserted into the grooves 54 and 56 of the upper and lower caps 46 and 48 having a one-side open rectangular sectional shape so as to form the guide groove 26 making their thickness direction an inserting direction and with a plurality of the dented portions 24 arranged in parallel in the weft inserting direction.
  • the plurality of reed dents 22 forming an upstream guide groove portion and a downstream guide groove portion in the ranges 28 and 30 are inserted into the grooves 54 and 56 so as to form the guide groove 26 such that those with the larger dimension L between the upper and lower faces of the dented portions 24 are arranged on the upstream side in the weft inserting direction, while those with the smaller dimension L between the upper and lower faces of the dented portions 24 are arranged on the downstream side in the weft inserting direction.
  • the plurality of the reed dents 22 forming an intermediate guide groove portion in the range 32 have the equal dimension L between the upper and lower faces of the dented portions 24.
  • the dimensions L between the upper and lower faces of the dented portions 24 of the reed dents 22 forming the guide grooves 26 in the ranges 28 and 30 are gradually made smaller or larger toward the range 32.
  • the dimension L of the dented portions 24 of the reed dents 22 forming the guide groove 26 in the ranges 28 and 30 are made smaller or larger toward the reed dents 22 positioned at the ends of corresponding divided reeds 12, 14, 16 so that the dimension L of the reed dents 22 nearest the range 32 may approach the dimension L of the dented portions 24 of the reed dents 22 positioned in the guide groove 26 of the range 32.
  • the dimension between the upper and lower faces of the dented portion 24 positioned at the end portion on the weft inserting side in the range 28 is larger than that of the dented portion 24 positioned in the range 32, while the dimension between the upper and lower faces of the dented portion 24 positioned at the end portion on the non-weft-inserting side in range 30 is smaller than that of the dented portion 24 positioned in the range 32.
  • the dimensions L between the upper and lower faces of the dented portions 24 of the reed dents 22 forming the guide groove 26 of each divided reed 12, 14, 16 is gradually made smaller from the weft inserting side to the non-inserting side, firstly on the weft inserting side, then made constant from halfway in the weft inserting direction, and thereafter, gradually made smaller again.
  • both faces of the guide grooves 26 in the width direction (vertical direction) are tapered in the ranges 28 and 30.
  • a space 58 between adjoining reed dents 22 is used as the space 58 for passing the warp by a pair of spacers 60 disposed in each divided reed 12, 14, 16 at vertical intervals.
  • the spacers 60 are coil springs of compressive or tensile type. Each ring-shaped portion of the coil spring 60 is located between adjoining reed dents 22 to form a constant space 58 between the adjoining reed dents 22.
  • the divided reeds 12, 14, 16 are assembled, with the plurality of reed dents 22 attached to the upper and lower caps 46, 48 as mentioned above, and with the side caps 50 and 52 acting as master dents respectively inserted into the weft inserting side and the non-inserting side of the upper and lower caps 46, 48, and by attaching the side caps 50 and 52 to the upper and lower caps 46 and 48 with rivets, lock screws, adhesives and the like.
  • Each side cap 50, 52 is formed to have a one-side open rectangular shape by bending both end portions of the plate material of the tie plate a little thicker than the reed dent 22 in the direction of the thickness, and is attached to the upper and lower caps 46 and 48 so as not to block the dented portion 24 of the reed dent 22 located at the end portion.
  • the side caps 50 and 52 can have substantially the same width dimension as the dimension from the rear edge portions 38 to the dented portions 24 of the reed dents 22 located at the end of the weft inserting side and the end of the non-weft-inserting side.
  • the divided reeds 12, 14, 16 forming the reed 10 for weaving assembled as mentioned above are assembled in series into a reed sley (not shown) which is attached to an arm (not shown) in the lower cap 48 such that the guide grooves 26 are located in an area where the warp exists and that the guide grooves 26 are communicated to each other and oppose the cloth fell of a cloth.
  • the dimension L between the upper and lower faces of the dented portion 24 of the reed dent 22 located most downstream in the weft inserting direction being made the minimum, a vertical dispersion of the weft 18 bursting out of the divided reeds 12, 14 is small, thereby making the running state of the weft 18 to the divided reeds 14, 16 disposed downstream further stable.
  • the divided reed 14 is explained with reference to Figs. 2 and 3, the divided reeds 12 and 16 also have the same shape of the guide grooves 26 as in the reed 14.
  • the dimension L between the upper and lower faces of the dented portions 24 of plurality of reed dents 22 forming a downstream guide groove portion in the range 30 are smaller than that of the dented portions 24 of the reed dents 22 forming the intermediate guide groove portion in the range 32, and, besides, have a constant value.
  • the downstream guide groove portion in the range 30 is shaped to have a range where the dimension L between the upper and lower faces of the dented portions 24 of the reed dents 22 forming the guide groove portion is gradually reduced as in the downstream guide groove portion in the range 30 shown in Fig. 4(B) and a range where they are constant as in the downstream guide groove of the range 30 as shown in Fig. 5(A).
  • the downstream guide groove portion in the range 30 has such a shape as the dimension L between the upper and lower faces of the dented portions 24 of the reed dents 22 is made smaller stepwise (gradually made smaller).
  • each of the plurality of reed dents 22 forming the downstream guide groove portion in the range 30 is formed such that a dimension A between the upper and lower faces of the dented portion 24 on the rear edge portion 38 is shaped larger than a dimension B between the upper and lower faces of the dented portion 24 on the side of the front edge portion 36.
  • the compression fluid flowing within the downstream guide groove in the range 30 can be reduce in quantity to be diffused from the opening portion of the downstream guide groove portion in the range 30, thereby making the weft 18 run efficiently.
  • the shape of the guide groove as viewed from the weft inserting direction in Fig. 6 may be circular (C-shaped) or may be formed to be integral as a guide member, instead of disposing reed dents in the range 30.
  • Any one of the divided reeds 12, 14 and 16 may be made a single reed.
  • looms in which the weft inserting side is on the left side, right side, and both right and left sides. Any of the foregoing embodiments can be used for a loom in which the weft is inserted from the left side; in other words, a loom in which the left side becomes the upstream in the weft inserting direction.
  • the dimension L between the upper and lower faces of the dented portions 24 of the reed dents 22 forming the guide groove 26 of each divided reed to be used for a loom in which the weft is inserted from the right side in other words, a loom in which the right side becomes the upstream in the weft inserting direction, is gradually made smaller from the weft inserting side (the right side) toward the non-inserting side (the left side), made constant from halfway in the weft inserting direction (from the right side to the left side), and then made smaller again.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP03024387A 2002-12-20 2003-10-24 Peigne de tissage Withdrawn EP1431434A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002369196A JP2004197280A (ja) 2002-12-20 2002-12-20 製織用筬
JP2002369196 2002-12-20

Publications (2)

Publication Number Publication Date
EP1431434A2 true EP1431434A2 (fr) 2004-06-23
EP1431434A3 EP1431434A3 (fr) 2005-01-19

Family

ID=32376313

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03024387A Withdrawn EP1431434A3 (fr) 2002-12-20 2003-10-24 Peigne de tissage

Country Status (3)

Country Link
EP (1) EP1431434A3 (fr)
JP (1) JP2004197280A (fr)
CN (1) CN100352986C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102453999A (zh) * 2010-10-18 2012-05-16 苏州市红玫瑰针织制衣有限公司 织机开口装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2913435B1 (fr) * 2007-03-07 2009-12-04 Schonherr Textilmaschb Gmbh Peigne de metier a tisser, metier a tisser comprenant un tel peigne et procede de fabrication d'un tel peigne.
CN106929988A (zh) * 2017-03-13 2017-07-07 青岛海福机械制造有限公司 用于喷气织机的筘

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5570726A (en) * 1994-07-09 1996-11-05 Lindauer Dornier Gesellschaft Mbh Air weaving loom with weft hold-down members and enlarged inlet and outlet weft insertion channel
US5782271A (en) * 1995-12-08 1998-07-21 Lindauer Dornier Gesellschaft Mbh Multi-section reed for air jet loom

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
JPH02269833A (ja) * 1989-04-10 1990-11-05 Nissan Motor Co Ltd 空気噴射式織機の緯入れ装置
JPH04194056A (ja) * 1990-11-26 1992-07-14 Asahi Chem Ind Co Ltd エアージェットルームにおける製織方法
JPH10204753A (ja) * 1997-01-13 1998-08-04 Toyota Autom Loom Works Ltd エアジェットルームにおける緯入れ装置
JP3866374B2 (ja) * 1997-05-16 2007-01-10 高山リード株式会社 空気噴射織機の筬及びその製造方法
WO2000061846A1 (fr) * 1999-04-07 2000-10-19 Takayama Reed Co., Ltd. Peigne pour metier a jet d'air et metier a tisser a jet d'air
JP3405962B2 (ja) * 2000-05-30 2003-05-12 津田駒工業株式会社 分割筬

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5570726A (en) * 1994-07-09 1996-11-05 Lindauer Dornier Gesellschaft Mbh Air weaving loom with weft hold-down members and enlarged inlet and outlet weft insertion channel
US5782271A (en) * 1995-12-08 1998-07-21 Lindauer Dornier Gesellschaft Mbh Multi-section reed for air jet loom

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch, Week 199234 Derwent Publications Ltd., London, GB; Class F03, AN 1992-281860 XP002307964 & JP 04 194056 A (ASAHI CHEM IND CO LTD) 14 July 1992 (1992-07-14) *
DATABASE WPI Section Ch, Week 200062 Derwent Publications Ltd., London, GB; Class F03, AN 2000-647430 XP002305437 & WO 00/61846 A1 (TAKAYAMA RIDO KK) 19 October 2000 (2000-10-19) *
PATENT ABSTRACTS OF JAPAN vol. 0150, no. 31 (C-0798), 24 January 1991 (1991-01-24) & JP 2 269833 A (NISSAN MOTOR CO LTD), 5 November 1990 (1990-11-05) *
PATENT ABSTRACTS OF JAPAN vol. 0161, no. 83 (C-0936), 6 May 1992 (1992-05-06) & JP 4 024247 A (ASAHI CHEM IND CO LTD), 28 January 1992 (1992-01-28) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 13, 30 November 1998 (1998-11-30) & JP 10 204753 A (TOYOTA AUTOM LOOM WORKS LTD), 4 August 1998 (1998-08-04) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 03, 31 March 1999 (1999-03-31) & JP 10 317257 A (TAKAYAMA READ KK), 2 December 1998 (1998-12-02) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102453999A (zh) * 2010-10-18 2012-05-16 苏州市红玫瑰针织制衣有限公司 织机开口装置

Also Published As

Publication number Publication date
CN100352986C (zh) 2007-12-05
JP2004197280A (ja) 2004-07-15
CN1510185A (zh) 2004-07-07
EP1431434A3 (fr) 2005-01-19

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