US3903820A - Edge control for machine sewing parallel edge seams - Google Patents

Edge control for machine sewing parallel edge seams Download PDF

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Publication number
US3903820A
US3903820A US517027A US51702774A US3903820A US 3903820 A US3903820 A US 3903820A US 517027 A US517027 A US 517027A US 51702774 A US51702774 A US 51702774A US 3903820 A US3903820 A US 3903820A
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US
United States
Prior art keywords
guide roller
edge
hold down
control device
edge control
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.)
Expired - Lifetime
Application number
US517027A
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English (en)
Inventor
Johann O Kleinschmidt
Wolfgang Niem
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Union Special GmbH
Original Assignee
Union Special GmbH
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Filing date
Publication date
Application filed by Union Special GmbH filed Critical Union Special GmbH
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Publication of US3903820A publication Critical patent/US3903820A/en
Assigned to BT COMMERCIAL CORPORATION reassignment BT COMMERCIAL CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: UNION SPECIAL CORPORATION
Assigned to UNION SPECIAL CORPORATION reassignment UNION SPECIAL CORPORATION RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BT COMMERCIAL CORPORATION
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
    • D05B35/00—Work-feeding or -handling elements not otherwise provided for
    • D05B35/10—Edge guides

Definitions

  • ABSTRACT This disclosure relates to an edge control for sewing [30] Foreign Application Priority Data material on a sewing machine parallel to an edge of OCL 25 1973 Germany N 2353399 the material.
  • the edge control is effected by a device which includes a stop bar disposed parallel to the path 52 us. 01 0.
  • Edge controls of various types for automatic production of edge parallel seams, even on materials with scalloped edges, are known. These known edge controls can be divided into two groups.
  • Edge controls of one of these groups feel or sense the edge of the fabric and align it parallel to the sewing machine, i.e. to the machine needle, by means which move the fabric in opposite directions transverse to the direction of sewing.
  • the other group of such edge controls imparts to the fabric only one movement transverse to the direction of sewing, i.e. in the direction toward a stop bar, as disclosed in the U.S. Pat. No. 3,782,310 to Stockel.
  • Hold down devices are arranged at a distance approximately equal to the thickness of the fabric and prevent bunching of the fabric.
  • This second group of devices for edge control is more economical since it does not require either the sensing device or the motive power as the means of control.
  • the tension in the fabric can be prevented by another device which imparts a lateral movement to the fabric in the direction of the stop bar by an air stream.
  • the latter is created by air jets below the sewing machine table. This installation is very expensive, however, and requires a source of power for the compressed air as well as additional energy for aligning the fabric.
  • This invention is based on the task of devising an edge control for producing edge parallel seams on sewing machines.
  • the edge control aligns the fabric at low cost and without additional energy and thus largely prevents distortion of the cloth or fabric.
  • a further characteristic of the invention is that the axis of rotation of the guide rollers is adjustable in its direction within a plane parallel to or at an angle with a parallel to the plane of sewing.
  • the guide rollers preferably project through slots in the hold down plates. With this arrangement, they can be made so small that it is easily possible to provide several superposed guide units so that several layers of cloth can be sewn together.
  • a preferred form of aligning two superposed parts consists in directing one guide roller from above through an upper plate and one guide roller from below through a lower plate against a center plate.
  • FIG. 2 is an enlarged fragmentary perspective view of the sewing machine and edge control of FIG. 1;
  • FIG. 3 is an enlarged fragmentary perspective view similar to FIG. 2 and shows an edge control for aligning two layers of fabric.
  • a sewing machine 1 which is equipped with a customary single direction transport (feed dogs) 2 and a customary presser foot 3.
  • a stop bar 4 Ahead of the conventional stitch plate (not shown), there is ar ranged in a known manner a stop bar 4 and, immedi ately adjacent to the stop bar, a hold down plate 5.
  • a freely rotating guide roller 6 projects through the hold down plate 5.
  • the guide roller 6 is supported by a bearing block 7 mounted on the hold down plate 5.
  • the axis of the guide roller 6 is oriented so that the direction of movement enforced on the guide roller 6 by advancing fabric tends to force the fabric to move towards the stop bar 4.
  • the arrangement shown in the drawing is purely schematic and does not show the possible forms of design and construction of guide roller 6.
  • the guide roller can be kept easily within relatively small dimensions so that several such plate and roller guides can be superposed for the purpose of sewing together several layers of fabric or cloth with different edge formations.
  • FIG. 3 there is shown three superposed plates 5a, 5b, 5c, linked by a stop bar 4a.
  • the examples of execution show cutting wheels" as the preferred form of guide rollers 6.
  • the cutting wheels are preferably placed so that the point of contact with the fabric lies in a line which extends in the direction of advance of the fabric through the path of motion of the needle.
  • An edge control device for sewing material in connection with a sewing machine for the production of a seam parallel to the edge of the material, said edge device comprising a stop bar and a hold down means extending transversely from said stop bar beyond an in tended seam line for preventing material being sewn from rising, said edge control device being characterized by at least one freely rotatable guide roller for aligning an edge of material being sewn with said stop bar, and means mounting said guide roller in position relative to said stop bar that the direction of travel imposed upon said guide roller by advancing material being sewn imparts continuously to the material a component of movement in a direction towards said stop bar.
  • An edge control device characterized in that said sewing machine has a sewing plane and said guide roller has an axis of rotation. and said mounting means mounts said guide roller for adjustment in direction within a plane parallel to the sewing plane.
  • An edge control device characterized in that said sewing machine has a sewing plane and said guide roller has an axis of rotation, and said mounting means mounts said guide roller for adjustment in direction within a plane parallel to the sewing plane, and at an angle to the direction of material advance.
  • An edge control device characterized in that said sewing machine has a sewing plane and said guide roller has an axis of rotation, and said mounting means mounts said guide roller for adjustment in direction at an angle to the direction of material advance.
  • said hold down means includes a hold down plate, said hold down plate has an opening therethrough, and said guide roller projects through said opening.
  • An edge control device includes a hold down plate, said hold down plate has an opening therethrough, and said guide roller projects through said openings.
  • An edge control device wherein there are a plurality of guide rollers, and said hold down means includes a center plate, upper and lower plates cooperating with said center plate to define material passages therebetween, said upper and lower plates having openings therethrough, there being one of said guide rollers associated with each of said upper and lower plates, and said guide rollers projecting through said openings towards said center plate.
  • An edge control device wherein there are a plurality of guide rollers, and said hold down means includes a center plate, upper and lower plates cooperating with said center plate to define material passages therebetween, said upper and lower plates having openings therethrough, there being one of said guide rollers associated with each of said upper and lower plates, and said guide rollers projecting through said openings towards said center plate.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US517027A 1973-10-25 1974-10-22 Edge control for machine sewing parallel edge seams Expired - Lifetime US3903820A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732353399 DE2353399A1 (de) 1973-10-25 1973-10-25 Kantensteuerung fuer das naehgut bei naehmaschinen zum herstellen randparalleler naehte

Publications (1)

Publication Number Publication Date
US3903820A true US3903820A (en) 1975-09-09

Family

ID=5896330

Family Applications (1)

Application Number Title Priority Date Filing Date
US517027A Expired - Lifetime US3903820A (en) 1973-10-25 1974-10-22 Edge control for machine sewing parallel edge seams

Country Status (7)

Country Link
US (1) US3903820A (enrdf_load_stackoverflow)
JP (1) JPS5078455A (enrdf_load_stackoverflow)
CH (1) CH579659A5 (enrdf_load_stackoverflow)
DE (1) DE2353399A1 (enrdf_load_stackoverflow)
FR (1) FR2249202B3 (enrdf_load_stackoverflow)
GB (1) GB1489622A (enrdf_load_stackoverflow)
IT (1) IT1021866B (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4086860A (en) * 1976-05-14 1978-05-02 Union Special Corporation Edge alignment apparatus
US4159687A (en) * 1976-02-27 1979-07-03 Kayabe Industry Co., Ltd. Automatic guiding method for workpiece in sewing machine
US4307675A (en) * 1979-02-13 1981-12-29 Haggar Company Semi-automatic panel serger
US4349142A (en) * 1980-11-10 1982-09-14 Soter Iii Richard A Electric rug binding system
US4493277A (en) * 1983-04-07 1985-01-15 Rockwell-Rimoldi S.P.A. Workpiece positioner for sewing units
US4653414A (en) * 1985-04-30 1987-03-31 Levi Strauss & Co. Apparatus for feeding fabric parts to sew a felled seam
US4682553A (en) * 1985-02-21 1987-07-28 Institut Textile De France Sewing machine workpiece edge alignment apparatus
US4924787A (en) * 1989-03-03 1990-05-15 The Charles Stark Draper Laboratory, Inc. Apparatus for forming a seam
US4941417A (en) * 1989-03-03 1990-07-17 The Charles Stark Draper Laboratory, Inc. Full felled seam fold assembly
US5031552A (en) * 1990-05-10 1991-07-16 The Charles Stark Draper Laboratory, Inc. Drive assembly for seam-forming apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1039967B (it) * 1975-07-21 1979-12-10 Rockwell Rimoldi Spa Guida del lavoro per macchine per cucire
JPS5414854A (en) * 1977-07-04 1979-02-03 Kiyoji Samata Device of controlling travelling direction of article to be sewn* etc*
JPS6083587U (ja) * 1983-11-11 1985-06-10 ブラザー工業株式会社 縫製装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2971483A (en) * 1957-01-08 1961-02-14 Cordier Andre Work feed control for sewing and the like machines
US3463482A (en) * 1966-09-30 1969-08-26 Jacobs Machine Corp Alignment bed and folder
US3782310A (en) * 1971-10-01 1974-01-01 Pfaff Ind Masch Sewing machine wth equipment for sewing of edge-parallel seams
US3815530A (en) * 1971-11-04 1974-06-11 M Denton Methods and apparatus for forming seams

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2971483A (en) * 1957-01-08 1961-02-14 Cordier Andre Work feed control for sewing and the like machines
US3463482A (en) * 1966-09-30 1969-08-26 Jacobs Machine Corp Alignment bed and folder
US3782310A (en) * 1971-10-01 1974-01-01 Pfaff Ind Masch Sewing machine wth equipment for sewing of edge-parallel seams
US3815530A (en) * 1971-11-04 1974-06-11 M Denton Methods and apparatus for forming seams

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159687A (en) * 1976-02-27 1979-07-03 Kayabe Industry Co., Ltd. Automatic guiding method for workpiece in sewing machine
US4086860A (en) * 1976-05-14 1978-05-02 Union Special Corporation Edge alignment apparatus
US4307675A (en) * 1979-02-13 1981-12-29 Haggar Company Semi-automatic panel serger
US4349142A (en) * 1980-11-10 1982-09-14 Soter Iii Richard A Electric rug binding system
US4493277A (en) * 1983-04-07 1985-01-15 Rockwell-Rimoldi S.P.A. Workpiece positioner for sewing units
US4682553A (en) * 1985-02-21 1987-07-28 Institut Textile De France Sewing machine workpiece edge alignment apparatus
US4653414A (en) * 1985-04-30 1987-03-31 Levi Strauss & Co. Apparatus for feeding fabric parts to sew a felled seam
US4924787A (en) * 1989-03-03 1990-05-15 The Charles Stark Draper Laboratory, Inc. Apparatus for forming a seam
US4941417A (en) * 1989-03-03 1990-07-17 The Charles Stark Draper Laboratory, Inc. Full felled seam fold assembly
WO1990010105A1 (en) * 1989-03-03 1990-09-07 The Charles Stark Draper Laboratory, Inc. Full felled seam fold assembly
WO1990010745A1 (en) * 1989-03-03 1990-09-20 The Charles Stark Draper Laboratory, Inc. Apparatus for forming a seam
US5031552A (en) * 1990-05-10 1991-07-16 The Charles Stark Draper Laboratory, Inc. Drive assembly for seam-forming apparatus
WO1991017298A1 (en) * 1990-05-10 1991-11-14 The Charles Stark Draper Laboratory, Inc. Drive assembly for seam-forming apparatus

Also Published As

Publication number Publication date
CH579659A5 (enrdf_load_stackoverflow) 1976-09-15
FR2249202A1 (enrdf_load_stackoverflow) 1975-05-23
DE2353399A1 (de) 1975-05-07
IT1021866B (it) 1978-02-20
FR2249202B3 (enrdf_load_stackoverflow) 1977-08-05
JPS5078455A (enrdf_load_stackoverflow) 1975-06-26
GB1489622A (en) 1977-10-26

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AS Assignment

Owner name: BT COMMERCIAL CORPORATION

Free format text: SECURITY INTEREST;ASSIGNOR:UNION SPECIAL CORPORATION;REEL/FRAME:004610/0215

Effective date: 19851220

Owner name: BT COMMERCIAL CORPORATION, STATELESS

Free format text: SECURITY INTEREST;ASSIGNOR:UNION SPECIAL CORPORATION;REEL/FRAME:004610/0215

Effective date: 19851220

AS Assignment

Owner name: UNION SPECIAL CORPORATION

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:BT COMMERCIAL CORPORATION;REEL/FRAME:004754/0102

Effective date: 19870707