EP0132466A1 - Vorrichtung zum Nähen - Google Patents

Vorrichtung zum Nähen Download PDF

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Publication number
EP0132466A1
EP0132466A1 EP83304359A EP83304359A EP0132466A1 EP 0132466 A1 EP0132466 A1 EP 0132466A1 EP 83304359 A EP83304359 A EP 83304359A EP 83304359 A EP83304359 A EP 83304359A EP 0132466 A1 EP0132466 A1 EP 0132466A1
Authority
EP
European Patent Office
Prior art keywords
stitches
needle
pair
dial
seam
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
EP83304359A
Other languages
English (en)
French (fr)
Other versions
EP0132466B1 (de
Inventor
Denis Matthews
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.)
Mathbirk Ltd
Original Assignee
Mathbirk 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 Mathbirk Ltd filed Critical Mathbirk Ltd
Priority to DE8383304359T priority Critical patent/DE3378133D1/de
Priority to EP19830304359 priority patent/EP0132466B1/de
Priority to JP15112384A priority patent/JPS6075080A/ja
Publication of EP0132466A1 publication Critical patent/EP0132466A1/de
Application granted granted Critical
Publication of EP0132466B1 publication Critical patent/EP0132466B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B7/00—Linking machines, e.g. for joining knitted fabrics

Definitions

  • the present invention relates to a method and apparatus for producing a seam for joining two or more pieces of fabric together and to a seam produced thereby.
  • a method of seaming together two or more pieces of fabric wherein the edges of the pieces of fabric are initially seamed together by one or more rows of ordinary chain stitches and thereafter the joined edges are oversewed by at least one pair of independent rows of oversew chain stitches, one row of stitches of said pair being formed so that its loops are located on one side of the finished seam and the other row of stitches of said pair being formed so that its loops are located on the other side of the finished seam.
  • a linking machine for performing the method as defined above including a dial of points, a first sewing station for producing said ordinary chain stitches and a second sewing station for producing said at least one pair of oversew chain stitches, said second sewing station including a first stitching assembly and a second stitching assembly spaced from one another in the direction of indexing of the dial of points, each stitching assembly having a needle and co-operating yarn wrapper for supplying yarn to the needle, the needle of one assembly being located on the inside of the dial and its co-operating yarn wrapper being arranged on the outside of the dial and the needle of the other assembly being located on the outside of the dial and its co-operating yarn wrapper being located on the inside of the dial.
  • a seam for joining two or more pieces of fabric including one or more rows of ordinary chain stitches and at least one pair of oversew chain stitches, one row of stitches of said pair being formed so that its loops are located on one side of the finished seam and the'other row of stitches of said pair being formed so that its loops are located on the other side of the finished seam.
  • FIG. 1 there is shown two pieces of knitted fabric 10, 12 which are joined together by a seam 15.
  • the pieces of fabric 10, 12 have raw edges 11, 13 respectively which are secured and protected by the seam 15.
  • the seam 15 is composed of four independent rows of stitches 16, 17, 18 and 19. Rows 16, 17 are ordinary chain stitches, each row of stitches being formed from a single thread 16 a manner similar to that disclosed in our U.K. Patents 1566771, 1520637 and 1506575. Reference should be made to these patents as the disclosure therein is assumed to be incorporated in this specification.
  • the rows of stitches 18 and 19 are oversew stitches formed from independent single threads 20, 21 respectively. Unlike the oversew stitches in our previously mentioned patents, one row of stitches is formed so that the loops 18a thereof are located on one side of the seam 15 and the other row of stitches is formed so that the loops 19a thereof are located on the other side of the seam 15.
  • the first advantage is that the seam 15 according to the present invention tends to be unbiased i.e. tensions within stitches 18, 19 are balanced on either side of the seam giving the result that the seam tends to be even and straight thereby giving an aesthetically superior seam.
  • a second advantage is that the present seam is softer than convention oversew seams.
  • oversew seams where the oversew stitches are formed from one side of the fabric only the bulk of the loops on one side of the seam tend to rigidify the seam and so resist compression. This can be a disadvantage in clothing as it can result in making the article of clothing uncomfortable to wear. This disadvantage is overcome by the present seam.
  • the present linking machine 30 includes a first sewing station (not shown) for producing rows of stitches 16, 17 and a cutting station (not shown) for trimming the edges of the fabrics prior to them being presented to the oversew station 31 shown in Figure 2.
  • the sewing station 31 includes a first stitching assembly 32 which has a needle arm 33 pivotally connected to a pivoted lever 34 which is pivotally connected to the machine frame by a bearing 34a.
  • the needle arm 33 carries a needle 36 which co-operates with a yarn wrapper 35.
  • the needle arm 33 is located on the inside of the dial of points 42 and is reciprocally deflected by a push rod assembly (not shown) located within housing 38 so as to reciprocate the needle 36 towards and away from the yarn wrapper 35 which is located outside the dial of points 42.
  • the lever 34 is reciprocally deflected by a push rod 40 in timed relationship to the advancement stroke of the needle 34 towards the yarn wrapper 35 so that on alternate advancement strokes the needle is in a lower position to penetrate fabric (not shown) on the dial of points 42 and on the next advancement stroke is in a raised position to pass over the edge of the fabric on the points. Height displacement of the lever 34 is achieved by providing a slot 34b which enables the point of attachment of the push rod to be moved relative to the axis of bearing 34a.
  • Rotary drive to yarn wrapper 35 is conveniently provided by continuous belts 45, 46 and shaft 47 rotatably nounted on housing 38.
  • Belt 45 is driven by a pulley 49 which is driven by the main drive shaft of the machine.
  • the second stitching assembly 50 is located at a predetermined spacing in the direction of indexing of the dial of points and includes a needle arm 33' having a needle 36' co-operating with a yarn wrapper 35'.
  • the needle arm 36' is located outside the dial of points 42 and the yarn wrapper 35' is located inside the dial of points 42.
  • the needle arm 33' is conveniently mounted on the lever 34 also and is arranged to advance and retract from its co-operating wrapper in synchronism with needle arm 33.
  • the first sewing station may be arranged so that penetration of a first needle for forming one of the rows of ordinary chain stitches is from one side of the fabric and that penetration of a second needle for forming the other of the rows of ordinary chain stitches is from the other side of the fabric. In this way the bulk of yarns on either side of the seam is the same.
  • a constructional arrangement of a suitable sewing station is disclosed in our U.K. patent 1592198 and reference should be made thereto.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Treatment Of Fiber Materials (AREA)
EP19830304359 1983-07-28 1983-07-28 Vorrichtung zum Nähen Expired EP0132466B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE8383304359T DE3378133D1 (en) 1983-07-28 1983-07-28 Apparatus for producing a seam
EP19830304359 EP0132466B1 (de) 1983-07-28 1983-07-28 Vorrichtung zum Nähen
JP15112384A JPS6075080A (ja) 1983-07-28 1984-07-20 縫い目の製造方法と装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19830304359 EP0132466B1 (de) 1983-07-28 1983-07-28 Vorrichtung zum Nähen

Publications (2)

Publication Number Publication Date
EP0132466A1 true EP0132466A1 (de) 1985-02-13
EP0132466B1 EP0132466B1 (de) 1988-09-28

Family

ID=8191225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830304359 Expired EP0132466B1 (de) 1983-07-28 1983-07-28 Vorrichtung zum Nähen

Country Status (3)

Country Link
EP (1) EP0132466B1 (de)
JP (1) JPS6075080A (de)
DE (1) DE3378133D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1495704A1 (de) * 2003-07-10 2005-01-12 SCA Hygiene Products AB Faserbahnprodukt

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB101867A (en) * 1915-10-18 1917-06-07 Willcox & Gibbs Sewing Machine Improved Seaming, or Stitching, and Process for its Production.
GB1566771A (en) * 1977-02-15 1980-05-08 Mathbirk Ltd Stitched seams
GB1592198A (en) * 1977-06-15 1981-07-01 Mathbirk Ltd Sewing machines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4104691A (en) * 1976-09-30 1978-08-01 Westinghouse Electric Corp. Circuit breaker apparatus including asymmetrical fault detector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB101867A (en) * 1915-10-18 1917-06-07 Willcox & Gibbs Sewing Machine Improved Seaming, or Stitching, and Process for its Production.
GB1566771A (en) * 1977-02-15 1980-05-08 Mathbirk Ltd Stitched seams
GB1592198A (en) * 1977-06-15 1981-07-01 Mathbirk Ltd Sewing machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1495704A1 (de) * 2003-07-10 2005-01-12 SCA Hygiene Products AB Faserbahnprodukt

Also Published As

Publication number Publication date
DE3378133D1 (en) 1988-11-03
EP0132466B1 (de) 1988-09-28
JPS6075080A (ja) 1985-04-27

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