US3174447A - Fabric holding device for automatic contoured sewing - Google Patents

Fabric holding device for automatic contoured sewing Download PDF

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Publication number
US3174447A
US3174447A US306865A US30686563A US3174447A US 3174447 A US3174447 A US 3174447A US 306865 A US306865 A US 306865A US 30686563 A US30686563 A US 30686563A US 3174447 A US3174447 A US 3174447A
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United States
Prior art keywords
fabric
clamp
frame
holding frame
sewing
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Expired - Lifetime
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US306865A
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English (en)
Inventor
Bono Luigi
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.)
Necchi SpA
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Necchi SpA
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Publication date
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Publication of US3174447A publication Critical patent/US3174447A/en
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B39/00—Workpiece carriers
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2209/00—Use of special materials
    • D05D2209/04—Use of special materials with high friction

Definitions

  • This invention relates in general to new and useful improvements in equipment for sewing machines, and more particularly relates to a novel device for the stretching in acorrect position pieces of fabric that are to be sewn by a sewing machine through the automatic execution f seams according to patterns designed beforehand.
  • This invention finds a particular, but not exclusive, application in the stretching to a correct position the pieces of fabric that are to be sewn for making shirt collars.
  • customarily shirt collars are formed from three pieces of fabric that are stretched in a fabric holding frame in well defined positions and in such a manner as not to permit any slipping either during the closing of the fabric holding frame or during the sewing operation.
  • the fabric In order to obtain this condition, the fabric must be placed on the fabric holding frame after having been cut to their generally rectangular outlines and after the shorter sides thereof have been clamped in a frame, after which the pieces are finally cut adjacent the contour of the sewing subsequent to the performing of the sewing operation.
  • ATLl rther object of this invention is to provide equipment for use in a sewing operation which permits pieces of fabric to be sewn together to be accurately stretched and clamped within a fabric holding frame without having to remove the fabric holding frame from an associated sewing machine, the equipment being of a nature whereby it is no longer necessary to follow the conventional step of placing the fabric holding frame on a table for preparing the pieces of fabric in their stretched position.
  • Still another object of this invention is to provide a novel apparatus for use in the execution of a predetermined pattern in sewing, the apparatus including a special table having means thereon for aligning fabric to be sewn, a fabric preparation frame releasably positioned on the table and having clamp means for clamping the ends only of fabric to be sewn, and the preparation frame being transferable from the table to an aligned position overlying the fabric holding frame, which fabric holding frame is automatically opened at the end of each sewing operation to remove the sewn fabric therefrom, and wherein the transfer of the stretched fabric from the preparation frame to the fabric holding frame is automatic by the closing of clamps of the fabric holding frame and the opening of clamps of the preparation frame.
  • FIGURE 1 is a perspective view of a sewing machineequipped with the fabric holding frame of this invention.
  • FIGURE 2 is an exploded perspective view showing both the fabric holding frame and the preparation frame, one clamp of each of the two frames being shown intheir open positions, and the general details of each of the two frames being clearly shown.
  • FIGURE 3 is a perspective View showing the preparation frame interlocked with a preparation table and the fabric required for sewing a collar being partially posi tioned on the table and partially clamped in the preparation frame.
  • the sew ing x is carried out by an equipment which includes a sewing machine 1 which has a large table 2.
  • the table has mounted thereon for controlled movement a fabric holding frame 3.
  • Thefabric holding frame 3 includes a vertical support 4 which. is connected with conven tional automatic following mechanism (not shown) disposed beneath the table 2.
  • the sewing machine 1 is of the type wherein the fabric holding frame 4 is shifted both longitudinally and transversely of the table 2 to follow a predetermined pattern.
  • the fabric holding frame 3 may be moved to its starting position by means of a handle 5, which handle 5 may also be utilized for moving the fabric hold ing frame 3 out of the projectory of a needle 6 of the sewing machine 1.
  • the fabric holding frame 3 may easily be opened to remove the sewn pieces of fabricand have others positioned therein.
  • the fabric holding frame 3 includes an elongated support or rod 7 which is fixed to the vertical support 4 and on which are secured horizontal lower clamp plates 8 and 9 which are symmetrically arranged and on which the pieces of fabric a, b, c are to be placed.
  • Each of the clamp plates 3, 9 is shaped in accordance with the profile of the shaped sewing x with the edges of the plates 8, 9 being spaced inwardly of the sewing pattern so that pieces of fabric placed on the clamp plates 8, 9 will protrude outwardly thereof with the edges of the fabric in position to be sewn along their edges.
  • the clamp plate 9 is illustrated as being shiftable along the rod 7 by the provision of an elongated slot 10' in the rod 7 and the securement of the clamp plate 9 by screwthreaded fasteners 11.
  • the purpose of this adjustment of the clamp plate 9 is so that the clamp plates 8 and 9 may have an adjustable over-all length in accordance with variations in sizes of collars. If this adjustment were not' desired, then the two clamp plates 8, 9 may be of a similar piece construction.
  • the clamp plates 8, 9 carry hinges 12 which are dis posed substantially parallel to the rod 7.
  • the hinge 12 of the clamp plate 3 secures an upper clamp plate 13' in position and the hinge 12 of the clamp plate h secures an upper clamp plate 14 in position.
  • the upper clamp plates 13 and 14 are shaped substantially like their respective clamp plates 8, 9 and are specifically designed to stretch and tightly clamp the pieces of fabric a, b, c
  • the faces of the clamp plates 13 and 14 opposing the clamp plates 8 and 9 are covered with a layer 15 of rubber or a similar elastic material.
  • the layer 15 is provided with a groove 16 which conforms to a shallow upstanding rib 17 formed on the clamp plates 8 and 9 and running generally adjacent the edges of the clamp plates 8 and 9. Because of the provision of the grooves 16 and the ribs 17 the pieces of fabric are slightly folded in order to insure a better tightening.
  • the upper faces of the clamp plates 13, 14 have struck therefrom upstanding bridges or guide straps 19 through which there pass central portions of carriage springs 20 which are formed of a resilient metal, such as piano wire.
  • the springs 20 have ends 21 with one end passing through a small hole 22 adjacent the hinge 12 and the opposite end 21 passing through a transversely elongated slot 23.
  • the ends 21 project slightly out of the rubber layer 15 and when the clamp plates 13 and 14 are closed, pinch pieces of fabric in the vicinity of the edges of the clamp plates 8 and 9 and cooperate therewith to tighten or stretch these pieces of fabric.
  • the upper clamp plates 13 and 14 are held in closed position by means of a pair of resilient arms 24 which are pivotally connected to the plates 8 and 9.
  • the resilient arms 24 are provided with handles 25 to effect the pivoting thereof between positions overlying the clamp plates 13 and 14 wherein they engage stops 26 projecting upwardly from these clamp plates, and in these positions generally overlying the rod 7 and engaging stops 27.
  • FIGURE 3 in particular wherein there is illustrated a preparation frame 28 and a preparation table 29 for the purpose of aligning the pieces of fabric a, b, c for transfer to the fabric holding frame 4.
  • the preparation frame 28 includes an elongated rod or support 30 having a pair of arms 31 and 32 extending forwardly from adjacent opposite ends thereof.
  • the arm 32 is rigidly secured to the rod 30 whereas the arm 31 is adjustable in a manner to be described hereinafter.
  • the rod 30 is provided a pair of depending plugs or pins 34 which are selectively engageable in holes 35 formed in the rod 7 of the fabric holding frame 3 and in the holes 36 of the preparation table 29.
  • Each of the arms 31 and 32 carries a clamp, generally referred to by the numeral 33.
  • the two clamps 33 are identical and are disposed in opposed relation.
  • Each of the clamps 33 is secured to its respective arm by means of a pivot member 39 and a pair of screws 37 which are engaged in elongated slots 38. This arrangement permits the angular adjustment of the clamps 33 with respect to the arms 31 and 32.
  • the arm 31 may be shifted along the rod 30 towards and away from the arm 32. This is accomplished by providing the rod 30 with an elongated slot 40 and securing the arm 31 to the rod 30 by means of fasteners 41 which are of the screw-threaded type and which may be loosened. The fasteners 41 pass through the elongated slot 40.
  • Each of the clamps 33 includes a plate 42 which is provided adjacent an edge thereof with fabric engaging knurling 43 (FIG. 2).
  • the plate 42 is also provided with upstanding tangs 44 against which the lateral edges y of the fabric pieces a, b, c abut.
  • the plate 42 has upstanding ears 45 which carry a transverse pivot rod 46.
  • a pair of arms 47 are pivoted on the pivot rod 46 and carry an upper clamp plate 48 the lower face of which is covered by a layer of rubber or other elastic material.
  • the clamp plate 48 is posi- 4 tioned to press on the knurling 43 of the plate 42.
  • the closing of the clamp 33 is insured by a spring 50 which is fixedly secured to a projecting part of the plate 42 and which presses on a curved tang 51 extending outwardly from the clamp plate 48.
  • each clamp 33 is effected by means of a handle 52 which projects upwardly from the clamp plate 48 on opposite sides of the tang 51.
  • the spring 59 enters into a window 53 in the tang 51 and again presses on the tang 51 to keep the clamp plate 48 in its open position, as is shown in the left-hand part of FIG- URES 2 and 3.
  • the preparation frame 28 rest upon the preparation table 29 in such a manner that the clamps 33 preferably rest on a surface 54 of the preparation table 29.
  • the preparation table 29 is provided with a pair of small generally hatshaped plates 55 on which the rod 30 of the preparation frame 28 rests.
  • Each plate 55 is provided with a hole 56 for receiving the pin 34 of the rod 30 and each hole 56 is aligned with one of the holes 36 in the preparation table 29.
  • the plates 55 are preferably mounted on a spacer or step 57 and the holes 36 are in the spacer 57.
  • the preparation table 29 is also provided with an elongated structural shape 58 which is disposed remote from and parallel to the holes 36.
  • the structural shape 58 is suitably secured to the preparation table 29 and is pro: vided with screw fasteners 59 which secure in place thereon a pair of plates 60 and 61.
  • Each of the plates 60 and 61 is provided with an arcuate slot 62 in which one of the screw fasteners 59 is positioned to permit the angular adjustment of the plate about the other of the screw fasteners 59.
  • the screw fasteners 59 for the plate 66 pass through an elongated slot 63 in the structural shape 58 so that the plate 60 may be adjusted toward and away from the plate 61 in accordance with the length of the fabric to be sewn together.
  • the plates 60 and 61 are provided with offset tangs 64 which project to one side of the plates 60 and 61 and which directly overlie the preparation table 29.
  • the pieces of fabric a, b, c are placed on the surface 54 of the preparation table so that their edges engage the tangs 64 of the plates 60 and 61 and the tangs 44 of the clamps 33.
  • the clamps 33 are closed and engage the longitudinal edges y of the pieces of fabric so that the pieces of fabric are now longitudinally stretched and clamped in place within the preparation frame 28 ready for transfer to the fabric holding frame 3.
  • the rod 7 is provided with a pair of hat-shaped plates 65 which are provided with holes 66 aligned with the holes 35.
  • the clamp plates 13 and 14 of the fabric holding frame 3 will automatically be in their open positions for the reception of the fabric pieces a, b, c after these previously sewn pieces of fabric have been removed therefrom.
  • the preparation frame 28 In order to transfer the new pieces of fabric to be sewn from the preparation frame 28 to the fabric holding frame 3, it is merely necessary to position the preparation frame 28 on the fabric holding frame 3. Then the clamp plates 13 and 14 are lowered and clamped in place by the resilient straps 24. Following this, the clamps 33 are opened to release the pieces of fabric, after which the preparation frame 28 is removed if? from the fabric holding frame 3 and is replaced on the preparation table 29 for the positioning of other pieces of fabric a, b, c therein while the required sewing is being executed on the fabric within the fabric holding frame 3.
  • a fabric stretching and holding device for use in controlled sewing by an automatic sewing machine, said device comprising a preparation frame having means for initially positioning and clamping a plurality of fabric layers to be sewn, and a fabric holding frame for holding fabric layers in stretched relation during a sewing operation, cooperating means on said preparation frame and said fabric holding frame for aligning said frames during the transfer of fabric layers from said preparation frame to said fabric holding frame, and means on said fabric holding frame for attachment to a sewing machine.
  • one of said frames has means for holding fabric tensioned in a longitudinal direction and the other of said frames having means for effecting stretching of fabric in a transverse direction.
  • said preparation frame has a pair of longitudinally spaced clamps for clamping longitudinal ends of fabric layers in longitudinally stretched relation, and said fabric holding frame having clamp means extending a major portion of the distance between said longitudinal spaced clamps, said fabric holding frame clamp means progressively closing in a transverse direction to transversely stretch previously longitudinally stretched fabric carried by said preparation frame.
  • said preparation frame has a pair of longitudinally spaced clamps for clamping longitudinal ends of fabric layers in longitudinally stretched relation, and said fabric holding frame having clamp means extending a major portion of the distanoe between said longitudinal spaced clamps, said fabric holding frame clamp means having means thereon for eifecting a transverse stretching of fabric.
  • a fabric holding clamp for automatic contoured sewing comprising a longitudinal support, means on said support for attachment to a sewing machine to effect the movement of said clamp, and progressively closing clamp means carried by said support for clamping fabric, said clamp means including means for stretching fabric in the direction of closing of said clamp means, and wherein said clamp includes a pair of pivotally connected clamp plates, and said fabric stretching means includes a fabric gripping surface on a movable one of said clamp plates, and a fabric pusher receiving groove in said surface, fabric gripping resilient fingers on a movable one of said clamp plates.
  • a fabric holding clamp for automatic contoured sewing comprising a longitudinal support, means on said support for attachment to a sewing machine to effect the movement of said clamp, and progressively closing clamp means carried by said support for clamping fabric, said clamp means including means for stretching fabric in the direction of closing of said clamp means, and wherein said clamp includes a pair of pivotally connected clamp plates, and said fabric stretching means includes a fabric gripping surface on a movable one of said clamp plates, and a fabric pusher receiving groove in said surface, fabric gripping resilient fingers on a movable one of said clamp plates, said fingers being in the form of offset ends on a spring wire with said end extending through said movable clamp plate from the exterior thereof.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US306865A 1962-09-05 1963-09-05 Fabric holding device for automatic contoured sewing Expired - Lifetime US3174447A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1751462 1962-09-05

Publications (1)

Publication Number Publication Date
US3174447A true US3174447A (en) 1965-03-23

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ID=11150404

Family Applications (1)

Application Number Title Priority Date Filing Date
US306865A Expired - Lifetime US3174447A (en) 1962-09-05 1963-09-05 Fabric holding device for automatic contoured sewing

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US (1) US3174447A (en:Method)
BE (1) BE636067A (en:Method)
DE (1) DE1914427U (en:Method)
GB (1) GB1012785A (en:Method)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3315625A (en) * 1964-03-12 1967-04-25 Clarkson Ltd W J Method and apparatus for stitching materials
US3351032A (en) * 1965-02-08 1967-11-07 Ernest M Junkins Work holding and transferring device
US3407759A (en) * 1965-12-16 1968-10-29 Kochs Adler Ag Rotary table for automatic sewing machine installations
US3443537A (en) * 1965-12-22 1969-05-13 Quick Rotan Becker & Co Sewing goods and the like tentering frame and assembly device therefor
US3710741A (en) * 1971-05-26 1973-01-16 Cluett Peabody & Co Inc Method and apparatus for automatic cape joining
US3721202A (en) * 1970-06-19 1973-03-20 Clarkson Ltd W J Method of, and apparatus for, stitching together two layers of material
US3828703A (en) * 1971-12-27 1974-08-13 Kochs Adler Ag Template
US3988993A (en) * 1973-10-26 1976-11-02 Usm Corporation Pallet for registering and securing a workpiece
EP0416641A1 (en) * 1989-09-08 1991-03-13 BETA ENGINEERING & DEVELOPMENT LIMITED A workholder for necktie sewing and clamp therefor
US5493981A (en) * 1994-09-27 1996-02-27 Ideal Equipment Company, Ltd. Semi-automatic top stitcher with die plate and movable support

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754780A (en) * 1951-11-30 1956-07-17 Holmes-Higgin Francis Beckwith Sewing machines
US2768592A (en) * 1953-05-02 1956-10-30 Trubenised Company Collar blank tensioning unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754780A (en) * 1951-11-30 1956-07-17 Holmes-Higgin Francis Beckwith Sewing machines
US2768592A (en) * 1953-05-02 1956-10-30 Trubenised Company Collar blank tensioning unit

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3315625A (en) * 1964-03-12 1967-04-25 Clarkson Ltd W J Method and apparatus for stitching materials
US3351032A (en) * 1965-02-08 1967-11-07 Ernest M Junkins Work holding and transferring device
US3407759A (en) * 1965-12-16 1968-10-29 Kochs Adler Ag Rotary table for automatic sewing machine installations
US3443537A (en) * 1965-12-22 1969-05-13 Quick Rotan Becker & Co Sewing goods and the like tentering frame and assembly device therefor
US3721202A (en) * 1970-06-19 1973-03-20 Clarkson Ltd W J Method of, and apparatus for, stitching together two layers of material
US3710741A (en) * 1971-05-26 1973-01-16 Cluett Peabody & Co Inc Method and apparatus for automatic cape joining
US3828703A (en) * 1971-12-27 1974-08-13 Kochs Adler Ag Template
US3988993A (en) * 1973-10-26 1976-11-02 Usm Corporation Pallet for registering and securing a workpiece
EP0416641A1 (en) * 1989-09-08 1991-03-13 BETA ENGINEERING & DEVELOPMENT LIMITED A workholder for necktie sewing and clamp therefor
US5493981A (en) * 1994-09-27 1996-02-27 Ideal Equipment Company, Ltd. Semi-automatic top stitcher with die plate and movable support

Also Published As

Publication number Publication date
BE636067A (en:Method)
GB1012785A (en) 1965-12-08
DE1914427U (de) 1965-04-22

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