US1942128A - Work supporting and guiding means - Google Patents

Work supporting and guiding means Download PDF

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Publication number
US1942128A
US1942128A US525575A US52557531A US1942128A US 1942128 A US1942128 A US 1942128A US 525575 A US525575 A US 525575A US 52557531 A US52557531 A US 52557531A US 1942128 A US1942128 A US 1942128A
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US
United States
Prior art keywords
work
work holder
lever
stop
movement
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
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US525575A
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English (en)
Inventor
Sommer Ernst
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US1942128A publication Critical patent/US1942128A/en
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
    • 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
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2501/00—Wearing apparel
    • D10B2501/04—Outerwear; Protective garments
    • D10B2501/041—Gloves

Definitions

  • This invention relates to work supporting and guiding means for sewing machines.
  • the apparatus hitherto usually used for making such seams places no slight requirements on the aptitude of the sewers, and the product frequently turns out more or less defective according to the degree of aptitude of the worker in question. Furthermore, the production of the seams hitherto usually occupies the attention of the sewers to such an extent that only one machine can at any time be attended to by a worker. The duration of the process of production and the cost of production are thereby unfavourably influenced, and a comparatively large staffis necessary for the production of a particular quantity of objects which include seams made in this manner, within a definite period of time.
  • the purpose of the invention is to provide work supporting and guiding. means facilitating the production of seams on the articles mentioned, in which with a considerably smaller staff the same quantity of work can be dealt with in a certain period of time, and in which no particularly skilful or highly paid labour is necessary, as the work is purely mechanical and can be carried out by inexperienced workers.
  • the apparatus comprises a work holder having projections to be guided in grooves in templates formed to correspond with the course of the seam to be produced, the work holder having a stop projecting into the range of movement of another stop carried by flexible connections running over rollers.
  • FIG. 1 represents the general arrangement of the apparatus on a sewing machine.
  • Figure 2 represents the apparatus independently in front view on a larger scale.
  • Figure 3 represents the apparatus in plan view.
  • the reference numeral 1 indicates the worktable fitted on the sewing machine 2. As will be seen from Figure 1, it is at the front of the machine, that is' in the range of the needle, considerably wider than with machines as usually constructed.
  • 3 indicates a slot made in the table and the purpose of which is explained below. Between the slot 3 and the front edge of the machine table 1 a pair of templates 4 are interchangeably fixed on the table.
  • the templates are covered by the cover plate 5 ( Figure 1).
  • Each of the two templates .4 has a guide groove 6.
  • Each guide groove has the same curve, and each serves to guide a pin '7, if necessary provided with a roller, and which. slides in the curved groove 6 from right to left.
  • the guide pins .7 are fitted on the guide arms 8 and project vertically downwards, the guide arms on their part being fixed on a work holder 10 taking the article 9 to be stitched, in this example a collar.
  • a driver arm or stop 11 projects downwards through the slot 3 of the machine table 1.
  • On the lower side of the table 1 is fitted a frame 12 consisting of parallel fiat bars (only shown in Figure 2). At the ends of this frame are carried the axles 13 on which are arranged chain wheels 14 in pairs. Endless chains 15 in parallel run over the chain wheels 14.
  • endless chains 15 in parallel run over the chain wheels 14.
  • the drive of the chains is effected by means of a worm gear driven from the pulley 20.
  • the worm on the shaft of the pulley 20 drives a worm wheel on the adjacent axle 13, the worm gear being contained within a guard or cover 19.
  • a pair of guide rollers 21 is provided for the upper runof each chain 15.
  • the upper runs of the chains 15 pass between the guide rollers 21 which are suitably supported from the frame 12, and which do not extend inwardly beyond the inner or opposing sides of the chains.
  • the guide rollers 21 will not interfere with the feed movement of the stops 16,
  • a cord 22 engages the stop 11 attached to the work holder; 10, and projecting I downward, this cord being carried over a roller 23 and a weight 24 being suspended on it.
  • a double armed lever 25 is pivotally suspended in a bearing. block 26, the left hand end of the said lever having'oppositely inclined surfaces as seen in Figure 2.
  • the right-hand end of the lever projects into the range of movement of the stops 17 and 18, while a spring pin 27 projects into the range of movement of the left-hand end of the lever 25, and by engagement with either of said inclined surfaceson the said lever tends to hold lever 25, is linked a vertical rod 28 terminating in a presser 29 with roughened surface.
  • a presser 29 rests in a recess of the machine table 1.
  • a counter pressure plate 30 roughened on its lower side is fixed on the table.
  • a stop 31 close to the pressure plate serves to limit the movement of the work piece 9.
  • the work holder 10 has a folding cover 32 clamping the work piece and held close folded 'by the springs 33.
  • the method of operation of the apparatus is as follows:
  • the flat cover 32 of the work holder 10 is lifted up, the collar 9 is placed in the work holder 10, (as seen in Figure 1) and the cover 32 is allowed to descend under the influence of the springs 33.
  • the worm gear is set in rotation, which is transmitted to the chain wheels 14 and thus to the chains 15.
  • the chains thus move from the right to the left; the stop 16 moved with the chains comes with its face in front of the stop 11 of the work holder 10 projecting downwards through the slot 3.
  • the work holder is thus carried along by the chains.
  • the left-hand corner of the work piece 9 comes within the range of the machine needle, which commences to make the seam.
  • the work piece holder 10 In addition to its straight longitudinal displacement towards the left, the work piece holder 10 carries out a cross movement perpendicular to the feed movement and corresponding to the ordinates of the guide grooves 6 in the templates 4 which combines with the forward feed movement toeffect the movement in a curved path prescribed by the grooves 6. This movement takes place owing to the guide pins 7 fixed on the arms 8 sliding in the grooves 6 on the displacement to the left of the work holder 10.
  • the stops 11 and 16 here coming into contact must naturally be so dimensioned that their faces remain in engagement in the displacement which they carry out.
  • the stop 17 which has a suitable surface passes with this surface over a pin fixed on the double armed lever 25 and forces the right-hand end of the lever 25 downwards; the left-hand end of the lever is thereby moved upwards and snaps over the spring pin 27 by which it is held in the position to which it has thus been moved when the stop 17, in consequence of the further movement of the chain 15, releases the right-hand end of the lever 25.
  • the upward movement of the left-hand end of the lever 25 causes an upward movement of the roughened presser 29, which grips a corner of the work piece and presses it against the roughened bottom of the counter pressure plate 30. The work piece is thus held fast.
  • the flat cover 32' can be easily raised automatically by any suitable device so that the work holder releases the work piece.
  • the work holder 10 is carried along with the guide pins '7 on its amis 8 sliding in the undulating grooves 6.
  • the said pins 7 reach its movement to the left continues.
  • a driving device a slotted work table, rollers positioned underneath 11 said table, flexible connections adapted to be set in motion by said driving device and to run over said rollers, templates having grooves shaped to correspond with the course of the seam to be produced, a work holder having guide projections 12 adapted to be guided in said grooves, said work holder .having a stop projecting downward through a slot in said table, and a second stop carried on said flexible connections to engage the stop on the work holder and thereby to move said 12 work holder forward.
  • a re-setting device tending to restore the work holder rapidly to its initial position, and means to disengage the work holder from the flexible connections at the termination of its forward stroke to permit said re-setting device to operate. 14.
  • the 'work holder is provided with a cover impelled by a spring to grip the work piece. 7
  • a clamping device toreoeive the work piece 15( from the work holder, and means carried by the flexible connections to place said clamping device in operation at the termination of the advance of the work holder.
  • a pressure plate roughened on the underside and secured on the work table, a vertically movable pressing member roughened on its upper surface and adapted to cooperate with said pressure plate to hold the work piece, and means to lift said movable pressing member into its operative position at the termination of the advance of the work holder.
  • a clamping device to receive the work piece from thework holder, said clamping device including a vertically movable pressing member, a lever pivotally connected with said pressing member to actuate said pressing member, and means carried by the flexible connections to actuate said lever.
  • a fixed pressure plate a movable pressure memher to cooperate with said plate to clamp the work piece, means carried by the flexible connections to'move said pressure member into the clamping position, and other means carriedby the flexible connections to reverse the movement of said pressure member to release the work piece.
  • a clamping device to hold the work piece
  • a lever to operate said clamping device, means to move said lever into the position corresponding with the operative position of said clamping device, other means to move said lever into the position in which said clamping device releases the work piece, and a spring impelled locking device tending to hold said lever in either of the positions into which it is thus placed.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US525575A 1930-04-03 1931-03-26 Work supporting and guiding means Expired - Lifetime US1942128A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE536232T 1930-04-03

Publications (1)

Publication Number Publication Date
US1942128A true US1942128A (en) 1934-01-02

Family

ID=34122333

Family Applications (1)

Application Number Title Priority Date Filing Date
US525575A Expired - Lifetime US1942128A (en) 1930-04-03 1931-03-26 Work supporting and guiding means

Country Status (4)

Country Link
US (1) US1942128A (pt)
BE (1) BE378611A (pt)
DE (1) DE536232C (pt)
FR (1) FR713779A (pt)

Cited By (15)

* 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
US3216380A (en) * 1962-09-10 1965-11-09 Necchi Spa Automatic sewing machine
US3322081A (en) * 1966-05-20 1967-05-30 O & W Sewing Machine Attachmen Material stitching and guiding machine
US3434439A (en) * 1967-12-16 1969-03-25 Ragnar W Winberg Material stitching and guiding apparatus
US3448706A (en) * 1966-11-21 1969-06-10 Clark Co Inc David Variable repetitive pattern sewing machine
US3653347A (en) * 1969-07-30 1972-04-04 Necchi Spa Automatic apparatus for sewing a seam of a predetermined configuration
US3654882A (en) * 1969-08-11 1972-04-11 Pneumatic Systems Inc Automatic control system for sewing machines
US3712256A (en) * 1970-05-29 1973-01-23 Pfaff Ind Masch Device on sewing machines for guiding the thread chain
US3782308A (en) * 1971-05-03 1974-01-01 Pfaff Ind Masch Sewing unit having a stencil rail for guiding the material
US3808992A (en) * 1972-02-01 1974-05-07 Pfaff Ind Masch Device for feeding the cloth in a sewing system for the production of open darts
US3810436A (en) * 1971-06-17 1974-05-14 Rimoldi C Spa Virginio Apparatus for forming patterned seams in fabric workpieces
US3988993A (en) * 1973-10-26 1976-11-02 Usm Corporation Pallet for registering and securing a workpiece
FR2627196A1 (fr) * 1988-02-15 1989-08-18 Tachi S Co Dispositif pour coudre un ensemble de housse de garnissage en une seule piece destine a un siege de vehicule
FR2631981A1 (fr) * 1988-05-31 1989-12-01 Tachi S Co Dispositif de couture pour coudre un tissu ondule
US5097776A (en) * 1990-05-18 1992-03-24 Juki America, Inc. Method and apparatus for loading and transferring materials in a sewing system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE935947C (de) * 1952-11-20 1955-12-01 Franz Sutrich Vorrichtung fuer Naehmaschinen zum Fuehren aufeinanderliegender und miteinander zu vernaehender Stoffteile
US2880683A (en) * 1956-02-15 1959-04-07 Singer Mfg Co Contour sewing machines
US2863408A (en) * 1956-03-05 1958-12-09 Singer Mfg Co Contour sewing machines
DE1242996B (de) * 1957-09-26 1967-06-22 Singer Co Stichgruppen-Naehmaschine

Cited By (17)

* 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
US3216380A (en) * 1962-09-10 1965-11-09 Necchi Spa Automatic sewing machine
US3322081A (en) * 1966-05-20 1967-05-30 O & W Sewing Machine Attachmen Material stitching and guiding machine
US3448706A (en) * 1966-11-21 1969-06-10 Clark Co Inc David Variable repetitive pattern sewing machine
US3434439A (en) * 1967-12-16 1969-03-25 Ragnar W Winberg Material stitching and guiding apparatus
US3653347A (en) * 1969-07-30 1972-04-04 Necchi Spa Automatic apparatus for sewing a seam of a predetermined configuration
US3654882A (en) * 1969-08-11 1972-04-11 Pneumatic Systems Inc Automatic control system for sewing machines
US3712256A (en) * 1970-05-29 1973-01-23 Pfaff Ind Masch Device on sewing machines for guiding the thread chain
US3782308A (en) * 1971-05-03 1974-01-01 Pfaff Ind Masch Sewing unit having a stencil rail for guiding the material
US3810436A (en) * 1971-06-17 1974-05-14 Rimoldi C Spa Virginio Apparatus for forming patterned seams in fabric workpieces
US3808992A (en) * 1972-02-01 1974-05-07 Pfaff Ind Masch Device for feeding the cloth in a sewing system for the production of open darts
US3988993A (en) * 1973-10-26 1976-11-02 Usm Corporation Pallet for registering and securing a workpiece
FR2627196A1 (fr) * 1988-02-15 1989-08-18 Tachi S Co Dispositif pour coudre un ensemble de housse de garnissage en une seule piece destine a un siege de vehicule
BE1003332A4 (fr) * 1988-02-15 1992-03-03 Tachi S Co Dispositif de couture pour systeme couvrant integral de garniture de siege automobile.
FR2631981A1 (fr) * 1988-05-31 1989-12-01 Tachi S Co Dispositif de couture pour coudre un tissu ondule
BE1003202A3 (fr) * 1988-05-31 1992-01-14 Tachi S Co Dispositif de couture pour coudre un tissu ondule.
US5097776A (en) * 1990-05-18 1992-03-24 Juki America, Inc. Method and apparatus for loading and transferring materials in a sewing system

Also Published As

Publication number Publication date
DE536232C (de) 1931-10-21
BE378611A (pt)
FR713779A (fr) 1931-11-02

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