EP1127973A1 - Aiguille de couture pour couture multidirectionnelle - Google Patents

Aiguille de couture pour couture multidirectionnelle Download PDF

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Publication number
EP1127973A1
EP1127973A1 EP01101316A EP01101316A EP1127973A1 EP 1127973 A1 EP1127973 A1 EP 1127973A1 EP 01101316 A EP01101316 A EP 01101316A EP 01101316 A EP01101316 A EP 01101316A EP 1127973 A1 EP1127973 A1 EP 1127973A1
Authority
EP
European Patent Office
Prior art keywords
eye
needle
walls
thread
edges
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
Application number
EP01101316A
Other languages
German (de)
English (en)
Other versions
EP1127973B1 (fr
Inventor
Bernd Hillenbrand
Gerd Horn
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.)
Groz Beckert KG
Original Assignee
Groz Beckert KG
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 Groz Beckert KG filed Critical Groz Beckert KG
Publication of EP1127973A1 publication Critical patent/EP1127973A1/fr
Application granted granted Critical
Publication of EP1127973B1 publication Critical patent/EP1127973B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B85/00—Needles

Definitions

  • the invention relates to a needle for a sewing machine.
  • Sewing machines usually have a needle that has an eye near its tip through which a Upper thread is guided.
  • the needle sticks in when sewing rapid sequence through the sewing material (textile fabric), taking the needle through the gradual transport of the sewing material are spaced apart stitch holes.
  • the upper thread is passed from tap hole to tap hole, going both forward and backward through the eye while sliding over an edge of the same.
  • Needle a specified direction of work and the sewing material is in a fixed direction, usually across the eye, transported.
  • Allow directions such as forward / backward or in several different directions (multidirectional)
  • the seam quality depends on the direction of sewing and / or the twisting of the thread. This is often undesirable.
  • Such a tufting needle has a preferred working direction on.
  • US Pat. No. 3,986,468 is a symmetrical one Needle known for a sewing machine.
  • the needle points near its tip a cross across the needle body extending eye, which is bounded by two eye walls becomes.
  • Both eye walls have both on their top as well as just trained on their underside Edges, i.e. extend the edges of the side walls each along a straight line from the shaft side Eye end to the tip-side eye end.
  • Such sewing needles although symmetrical are different behaviors when sewing forward and when sewing twisted threads backwards.
  • the needle according to the invention has an eye that extends across the needle body. Under “across” will both have a right-angled alignment of the eye the longitudinal central axis of the needle body, as well as an inclined Alignment understood at an acute angle to this.
  • the eye is delimited by two eye walls that join the outlet side of the eye, i.e. on the side from which starting the thread extends to the sewing material, lowered are. In other words, the edges of the eye walls are curved towards the back of the needle or are otherwise shaped.
  • the eye walls, which are the side walls of a thread outlet channel can continue, thus extend between two places regarding the needle thickness each represent a local survey.
  • the lowered eye walls allow a twisted one Thread running sideways across the eye wall across the eye, without the thread twisting when running over the Eye wall is changed to a greater extent.
  • the thread twist becomes the basis created for that in different sewing directions
  • Preserve seams with at least approximately the same quality can be.
  • the thread receives when sewing forward and no significantly different when sewing in reverse Twisting when crossing the eye walls.
  • Such extreme error conditions can be needle avoid.
  • the one in the invention Effect of less influence on the needle
  • twisting can also be important for sewing machines, that only sew in one direction.
  • the new needle enables the use of upper threads with different Twisting, e.g. right-hand twisted threads or left-hand twisted threads, the influence of the direction of twisting on the seam quality goes back clearly and in becomes meaningless in most cases.
  • the eye walls are preferably stepped and concavely curved on the eye outlet side. This Curvature of the upper edges of the eye walls on the eye outlet side supports the above uniform Thread run regardless of the sewing direction and enables also a high sewing speed due to the overall reduced eye height and the resulting slowly opening the taphole.
  • the needle is a thread gutter following the end of the eye at the outlet trained that towards the top extends, with the eye walls in the side walls of the Pass over the thread gutter.
  • a concave arcuate curvature of the side walls enables the generous rounding of their respective Edges or the flattening transverse to the direction of the eye.
  • the thread can be largely undisturbed over the relevant one Edge run, taking the angle, the individual Include strands or filaments of thread with the eye wall, is of minor importance. this applies especially for the design with a flattened edge.
  • the outlet side Thread trough parallel to the longitudinal extension the needle aligned.
  • the needle has no through the thread channel predetermined preferred working direction, what accommodates the multidirectional usability.
  • the needle is also preferably one Longitudinal median plane symmetrical.
  • the two eye walls are then mirror-symmetrical to each other. This also comes from the multidirectional work opportunities towards the sewing needle.
  • the eye is preferably adjacent to the shaft of the needle a groove is arranged, which the gripper at Allow enough space for sewing.
  • the shaft in the area between the tip of the needle and the fillet flattened overall and preferably only points between the eye and the fillet reaches its maximum shaft height at the eye. This has advantages in opening the tap hole and with regard to the thread running in different working directions.
  • the eye of the needle can also be turned on be flattened on the thread entry side if additional Effects are to be brought about. However, it is considered appropriate viewed the edges of a thread infeed gutter over to continue the eye straight. This makes a good one Protection of the thread on the inlet side of the eye.
  • a needle 1 is illustrated, the Shank 2 (needle body) from one intended for clamping Clamping part 3 up to a tip 4 along one Longitudinal central axis 5 extends.
  • the shaft 2 is preferred stretched, i.e. just trained. If necessary However, it can also be designed in another way, for example cranked his.
  • the longitudinal central axis 5 is through the tip 4 fixed and agrees with the longitudinal direction of the shaft 2 match.
  • the Eye 6 can, as can be seen from Figure 3, by a oblong or oval opening, through a round hole or be formed by openings of another shape.
  • the relevant opening, which forms the eye 6, has an in central axis not further illustrated in the figures or opening axis, which the longitudinal central axis 5 preferably cuts and at right angles or at an acute angle is inclined to this. In all cases leads the eye 6 across the shaft 2.
  • the eye 6 is with respect to that defined by the longitudinal central axis 5 Longitudinal direction on the side remote from the tip 4 through a first eye end 7 and towards the tip 4 lying side bounded by a second eye end 8.
  • Eye ends 7, 8 are preferably more or less rounded and without sharp edges.
  • Eye 7 reaches the shaft 2 of the needle 1 at one Position 9 (FIG. 2) a height above the needle back 10, which corresponds to approximately 87% of the nominal size of needle 1 and between the tip 4 and one adjoining the point 9 Fillet 11 a highest elevation, i.e. maximum shaft thickness. In other embodiments can the height of the shaft 2 at the point 9, however also be determined otherwise.
  • FIGS. 1 and 2 have the eye walls 14, 15 and the side walls 16, 17 each have an upper edge 19a, 19b, 20a, 20b, which the Defines the contour of the eye 6 on the thread outlet side.
  • the Edges 19a, 20a, 19b, 20b form a closed saddle-shaped Ring surface.
  • the one defined by the margin 19, 20 Contour to be seen transversely to the eye 6 Does not touch an imaginary line 21, the 9th connects to a point 22 at which the thread groove 18th ends.
  • This imaginary line or straight line 21 is preferred at a positive acute angle to the longitudinal central axis 5 oriented. In the illustrated embodiment it is about 5 °.
  • the thread groove 18 is in the present embodiment kept relatively flat. This means that the Side walls 16, 17 are significantly lower than the width of the eye 6. The height of the side walls 16, 17 is thus preferably much less than the thickness of the thickest through the eye 6 feasible thread.
  • the needle 1 is from the tip 4 to the eye 6 preferably formed symmetrically. In the further course however, it can deviate from symmetry, such as in particular is apparent from Figures 3 and 5. In the area the fillet 11 can be provided with a lateral bevel 27 be enough space for a sling grab to. Offer.
  • FIG. 1 illustrates the thread inlet channel 28 also have a graduated height, the depth or the height of the thread inlet channel to the eye 6 reduced.
  • the needle 1 described so far works like follows:
  • FIGS. 6a to 6d the needle 1 in different phases when sewing forward illustrate.
  • the needle 1 is in figure 6a above a hold-down 35, which on a with a thread 31 to be sewn textile fabric 32 lies on.
  • the thread 31 stretches from a point 33, through the last stitch hole and the last stitch knot is determined to the eye 6 of the needle 1, which moved to the textile fabric 32.
  • the thread 31 is kept taut. It is twisted on the left (z-twisted), the twisting in Figures 6a to 6d is indicated in the drawing.
  • the thread 31 is on the Sliding surface 24, the individual filaments or strands of the thread 31 longitudinally approximately transversely to the longitudinal central axis 5 run over the edges of the sliding surface 24. An interference the twist is therefore relative from the start low.
  • FIGS. 7a to 7d forth Again, a thread 31 is used, the has the same twist as that used for forward sewing Thread 31. However, the textile fabric not as in Figures 6a to 6d with respect to the needle 1 moved to the right, but to the left. This is in the Figures 6 and 7 each indicated by an arrow T. The position 33 with the last stitch knot is thus moved away from the needle 1 such that the thread 31 over the eye wall 15 and the sliding surface 25 runs. The twist is such that the individual filaments or strands of the thread 31 parallel or at an acute angle to the Longitudinal central axis 5 over the sliding surface 25 and its edges to run.
  • the needle 1 is intended for sewing machines that in at least two, but preferably several directions can sew.
  • the needle 1 has a new type of geometry on. It is in the area of the eye on the fillet side towards the top with a bilateral depression the eye edge or the channel edge of the outlet side Provide thread guide groove.
  • the depth of the depression depends of the needle size and can be determined as required.
  • the lengths of the lowered eye edges / gutter edges depend on the needle geometry.
  • the length of the eye ridges is preferably chosen so that the outlet the straight thread outlet channel is retained.
EP01101316A 2000-02-23 2001-01-20 Aiguille de couture pour couture multidirectionnelle Expired - Lifetime EP1127973B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10008447 2000-02-23
DE10008447A DE10008447C2 (de) 2000-02-23 2000-02-23 Nähnadel zum multidirektionalen Nähen

Publications (2)

Publication Number Publication Date
EP1127973A1 true EP1127973A1 (fr) 2001-08-29
EP1127973B1 EP1127973B1 (fr) 2004-07-21

Family

ID=7632108

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01101316A Expired - Lifetime EP1127973B1 (fr) 2000-02-23 2001-01-20 Aiguille de couture pour couture multidirectionnelle

Country Status (5)

Country Link
US (1) US6318281B2 (fr)
EP (1) EP1127973B1 (fr)
JP (1) JP4528454B2 (fr)
DE (2) DE10008447C2 (fr)
ES (1) ES2220596T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104404722A (zh) * 2014-11-20 2015-03-11 广西大学 缝纫针
EP2896732A1 (fr) * 2014-01-21 2015-07-22 Groz-Beckert KG Aiguille à coudre avec double nervurage
EP3885482A1 (fr) * 2020-03-26 2021-09-29 Organ Needle Co., Ltd. Aiguille de machine à coudre à point de chaînette de recouvrement et procédé de couture utilisant une machine à coudre à point de chaînette de recouvrement

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4043319B2 (ja) * 2002-08-23 2008-02-06 オルガン針株式会社 ミシン針
JP2004141468A (ja) * 2002-10-25 2004-05-20 Organ Needle Co Ltd ミシン針
JP2006303362A (ja) * 2005-04-25 2006-11-02 Nec Mobiling Ltd 携帯機器、およびストラップ取り付け構造
US7495952B2 (en) * 2005-07-13 2009-02-24 Cornell Research Foundation, Inc. Relay-connected semiconductor transistors
US20100036415A1 (en) * 2008-08-07 2010-02-11 Tyco Healthcare Group Lp Surgical needle with reduced contact area

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986468A (en) * 1975-11-17 1976-10-19 Union Special Corporation Sewing machine needle
DE2623796A1 (de) * 1975-11-19 1977-06-02 Janome Sewing Machine Co Ltd Naehmaschinennadel
EP0163278A1 (fr) * 1984-05-25 1985-12-04 Firma Jos. Zimmermann Aiguille pour machine à tufter
DE8632106U1 (fr) * 1986-11-29 1987-04-09 Fa. Jos. Zimmermann, 5100 Aachen, De
DE3810481A1 (de) * 1988-03-26 1989-10-05 Franz Martin Arndt Hartmetallnaehmaschinennadel

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1323340A (en) * 1919-12-02 Machine
US357805A (en) * 1887-02-15 Charles h
US2221419A (en) * 1938-11-22 1940-11-12 Myrtle L Anteliff Needle
US3322085A (en) * 1965-09-20 1967-05-30 Allied Chem Tufting needle
JPS5440198Y2 (fr) * 1973-06-11 1979-11-27
DE19921913C2 (de) * 1999-05-12 2001-06-13 Groz Beckert Kg Nähmaschinennadel mit schlankem Öhr
DE19932288C2 (de) * 1999-07-10 2001-11-29 Groz Beckert Kg Nähmaschinennadel mit verbesserter Schlingenbildung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986468A (en) * 1975-11-17 1976-10-19 Union Special Corporation Sewing machine needle
DE2623796A1 (de) * 1975-11-19 1977-06-02 Janome Sewing Machine Co Ltd Naehmaschinennadel
EP0163278A1 (fr) * 1984-05-25 1985-12-04 Firma Jos. Zimmermann Aiguille pour machine à tufter
DE8632106U1 (fr) * 1986-11-29 1987-04-09 Fa. Jos. Zimmermann, 5100 Aachen, De
DE3810481A1 (de) * 1988-03-26 1989-10-05 Franz Martin Arndt Hartmetallnaehmaschinennadel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2896732A1 (fr) * 2014-01-21 2015-07-22 Groz-Beckert KG Aiguille à coudre avec double nervurage
WO2015110386A1 (fr) * 2014-01-21 2015-07-30 Groz-Beckert Kg Aiguille à coudre à double rainurage
US9758911B2 (en) 2014-01-21 2017-09-12 Groz-Beckert Kg Sewing needle with double twist groove
CN104404722A (zh) * 2014-11-20 2015-03-11 广西大学 缝纫针
EP3885482A1 (fr) * 2020-03-26 2021-09-29 Organ Needle Co., Ltd. Aiguille de machine à coudre à point de chaînette de recouvrement et procédé de couture utilisant une machine à coudre à point de chaînette de recouvrement

Also Published As

Publication number Publication date
DE10008447C2 (de) 2002-07-25
JP2001246191A (ja) 2001-09-11
US6318281B2 (en) 2001-11-20
ES2220596T3 (es) 2004-12-16
DE10008447A1 (de) 2001-09-06
EP1127973B1 (fr) 2004-07-21
JP4528454B2 (ja) 2010-08-18
DE50102892D1 (de) 2004-08-26
US20010015162A1 (en) 2001-08-23

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