US3005136A - Sewing machine whereby stitches forming various patterns can be produced automatically - Google Patents

Sewing machine whereby stitches forming various patterns can be produced automatically Download PDF

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US3005136A
US3005136A US728823A US72882358A US3005136A US 3005136 A US3005136 A US 3005136A US 728823 A US728823 A US 728823A US 72882358 A US72882358 A US 72882358A US 3005136 A US3005136 A US 3005136A
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control member
sewing machine
various patterns
electromagnets
forming various
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US728823A
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Fluckiger Ernst
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Mefina SA
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Mefina SA
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L3/00—Platens or like sheet supports for manifolding using pressure-sensitive layers or intermediaries, e.g. for book-keeping purposes
    • B41L3/02—Platens or like sheet supports for manifolding using pressure-sensitive layers or intermediaries, e.g. for book-keeping purposes with stationary clamping means for holding the manifolding assembly in registered position, e.g. resilient clamps for holding non-perforated sheets
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B19/00—Programme-controlled sewing machines
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/02—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing with mechanisms for needle-bar movement

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  • the present invention relates to a control device, especially for a sewing machine whereby stitches forming various patterns .can be produced automatically, and wherein at least one of the two effective elementsneedle bar and work feed device-is subjected to the action of said control device which is intended to locate the exact position at which the needle penetrates the work.
  • This control device comprises a digital programme controller furnishing electric signals, a series of electromagnets to which the said signals are transmitted, a series of mobile abutments controlled by the said electromagnets and each adapted to occupy two positions, a withdrawn position and a working position, and finally a slidable control member which is connected mechanically tothe said element--needle bar or work feed device-and is subjected to the action of a driving member which displaces it in the one or the other direction, the said control member comprising arresting surfaces with which the aforesaid mobile abutments cooperate and which are so arranged that each mobile abutment determines two stopping positions of the control member depending on whether the latter has come into contact with the abutment when being displaced in one direction or the other.
  • FIGURE 1 is a sectional view of part of a sewing machine, showing only those elements which are necessary for the understanding of the invention.
  • FIGURE 2 is a plan view of a detail of FIGURE 1, on a smaller scale.
  • FIGURE 3 is a plan view of a further detail of FIG- URE l, likewise on a smaller scale, and,
  • FIGURE 4 is a diagrammatic elevational view of a detail of a modified form of embodiment.
  • the machine illustrated comprises a needle 1 fixed to a needle-carrying bar 2, which itself is mounted in a cradle 3.
  • the latter is articulated on a pin 4 belonging to the frame of the machine.
  • the needle could equally well be mounted in a known so-called pendulum-type arrangement.
  • An arm 3a of the cradle 3 is connected, by a rod 5, to a control member 6 which is mounted so as to be slidable on the frame 7 of the machine and which can be displaced in reciprocating movement.
  • the movements of the control member 6 in one direction or the other are produced by two electromagnets 8 and 9 respectively.
  • the amplitude of these displacements is limited by one or other of a series of rods 10, 11, 12 fast with the plunger cores of three electromagnets 13, 14 and 15 respectively.
  • These rods are each adapted to occupy either a withdrawn position or a working position in which they each penetrate into one of a series of three holes 16, 17 and 18 formed in the control member 6.
  • These holes are of difierent diameters and each determines two distinct positions of the member 6 when the corresponding rod is in the working position, depend ing on the direction in which the member 6 has been displaced in order to bring the edge of the hole to abut against the rod.
  • These holes thus determine six different positions of the member 6, to which are added the two extreme left-hand and right-hand positions which it can occupy when all the rods are in the withdrawn position.
  • the diiferent electro-magnets 8 and 9, and 13 to 15 are energised by a current source 19, connected by a wire 20, and a frictional contact 21 to a ring 22 surrounding a plate 23 made of insulating material. Small con tact rods 24 are housed in this plate 23. A perforated disc 25 rests on the ring 22. Finally, five electrical contacts 26a to 26e are connected, by wires 27a to 27 respectively, to the electromagnets 8 and 9 and 13 to 15.
  • the machine will comprise a plurality of discs 25 havingpdifferent perforations, which will be readily intermodify the and could be replaced by-a dilferent mechanism, whereas the electromagnets 12 to 15 are selectors for the position which the control member 6 is to occupy.
  • control device 29 (FIGURE 4) instead of being applied to the needle.
  • a digital programme controller furnishing electric signals, a series of electromagnets to which the said signals are transmitted, a seriesof mobile abutments controlled by the said electromagnets and each adapted to occupy two positions, a withdrawn position and a working position, a slidable control member which is connected mechanically to the said element which is to be controlled and finally a driving member operatively connected to said control member displacing it in the one or the other direction
  • the said control member comprising arresting surfaces distributed as a number of pairs, the two surfaces of each pair facing each other, each of the aforesaid mobile abutments cooperating with one pair of the said arresting surfaces, more precisely with one or with the other surface of the said pair, depending on the direction in which the said control member is moving at the instant when the said abutment comes into its working position, whereby each mobile abutment determines
  • a control device for controlling the position of a machine element, especially for controlling the position of the needle bar or of the work feed device of a sewing machine, a digital programme controller furnishing electric signals, a series of electromagnets to which the said signals are transmit-ted, a series of mobile abutments controlled by the said electromagnets and each adapted to occupy two positions, a withdrawn position and a working position, a slidable control member which is connected mechanically to the said element which is to be controlled and finally a driving member operatively connected to said control member for displacing it in the one or the other'direction, the said control member being formed with perforations into each of which one of the said mobile abutments is adapted to penetrate, and whose diametrically opposite lateral walls constitute arresting surfaces for said abutments, whereby each mobile abutment determines two stopping positions of the control member depending on whether the latter has come into contact with the abutment when being displaced in one direction or the other.
  • a control device for controlling the position of a machine element, especially for controlling the posi- .said control member for moving it respectively in one direction or the other, the said control member comprising arresting surfaces distributed as a number of pairs, the two surfaces of each pair facing each other, .each of the aforesaid mobile abutments cooperating with one pair of the said arresting surfaces, more precisely with one or with the other surface of the said pair, depending on the direction in which the said control memher is moving at the instant when the said abutment comes into its working position, whereby each mobile abutment determines two stopping positions of the control member.
  • a control device for controlling the position of a machine element, especially for controlling the position of the needle bar or of the work feed device of a sewing machine, a rotatable perforated disc constituting a digital programme controller, electrical contacts controlled by said disc, a series of electromagnets operated by said contacts, a series of mobile abutments controlled by said electromagnets and each adapted to occupy two positions, a withdrawn position and a working position, a slidable control member which is connected mechanically to the said element which is to be controlled and finally a driving member operatively connected to said control member for displacing it in the one or the other direction, the said control member comprising arresting surfaces distributed as a number of pairs, the two surfaces of each pair facing each other, each of the aforesaid mobile abutments cooperating with one pair of the said arresting surfaces, more precisely with one or with the other surface of the said pair, depending on the direction in which the said control member is moving at the instant when the said abutment comes into its working

Description

Oct. 17, 1961 E. FLUCKIGER 3,
SEWING MACHINE WHEREBY STITCHES FORMING VARIOUS PATTERNS CAN BE PRODUCED AUTOMATICALLY Filed April 16; 1958 27a 27c 27d 27:
United States Patent 3,005,136 SEWING MACHINE WHEREBY STITCHES FORM- ING VARIOUS PATTERNS CAN BE PRODUCED AUTOMATICALLY Ernst Fliickiger, Geneva, s'witzerlanmassignor to Mefina S.A., Fribourg, Switzerland, :1 firm of Switzerland Filed Apr. 16, 1958, Ser. No. 728,823 Claims priority, application Switzerland May 9, 1957 4 Claims. (Cl. 318-119) The present inventionrelates to a control device, especially for a sewing machine whereby stitches forming various patterns .can be produced automatically, and wherein at least one of the two effective elementsneedle bar and work feed device-is subjected to the action of said control device which is intended to locate the exact position at which the needle penetrates the work.
This control device comprises a digital programme controller furnishing electric signals, a series of electromagnets to which the said signals are transmitted, a series of mobile abutments controlled by the said electromagnets and each adapted to occupy two positions, a withdrawn position and a working position, and finally a slidable control member which is connected mechanically tothe said element--needle bar or work feed device-and is subjected to the action of a driving member which displaces it in the one or the other direction, the said control member comprising arresting surfaces with which the aforesaid mobile abutments cooperate and which are so arranged that each mobile abutment determines two stopping positions of the control member depending on whether the latter has come into contact with the abutment when being displaced in one direction or the other.
One form of embodiment of the subject of the invention and a modified form of embodiment are illustrated by way of example in the accompanying drawings.
FIGURE 1 is a sectional view of part of a sewing machine, showing only those elements which are necessary for the understanding of the invention.
FIGURE 2 is a plan view of a detail of FIGURE 1, on a smaller scale.
FIGURE 3 is a plan view of a further detail of FIG- URE l, likewise on a smaller scale, and,
FIGURE 4 is a diagrammatic elevational view of a detail of a modified form of embodiment.
The machine illustrated comprises a needle 1 fixed to a needle-carrying bar 2, which itself is mounted in a cradle 3. The latter is articulated on a pin 4 belonging to the frame of the machine. The needle could equally well be mounted in a known so-called pendulum-type arrangement. An arm 3a of the cradle 3 is connected, by a rod 5, to a control member 6 which is mounted so as to be slidable on the frame 7 of the machine and which can be displaced in reciprocating movement.
The movements of the control member 6 in one direction or the other are produced by two electromagnets 8 and 9 respectively. The amplitude of these displacements is limited by one or other of a series of rods 10, 11, 12 fast with the plunger cores of three electromagnets 13, 14 and 15 respectively. These rods are each adapted to occupy either a withdrawn position or a working position in which they each penetrate into one of a series of three holes 16, 17 and 18 formed in the control member 6. These holes are of difierent diameters and each determines two distinct positions of the member 6 when the corresponding rod is in the working position, depend ing on the direction in which the member 6 has been displaced in order to bring the edge of the hole to abut against the rod. These holes thus determine six different positions of the member 6, to which are added the two extreme left-hand and right-hand positions which it can occupy when all the rods are in the withdrawn position.
3,005,136 I Patented Oct. 17,1961
The diiferent electro-magnets 8 and 9, and 13 to 15 are energised by a current source 19, connected by a wire 20, and a frictional contact 21 to a ring 22 surrounding a plate 23 made of insulating material. Small con tact rods 24 are housed in this plate 23. A perforated disc 25 rests on the ring 22. Finally, five electrical contacts 26a to 26e are connected, by wires 27a to 27 respectively, to the electromagnets 8 and 9 and 13 to 15.
Depending on the arrangement of the perforations 28 formed in the disc 25, some of the small rods 24 are in electrical contact therewith whilst others are insulated therefrom. The plate 23 carrying the disc 25 being entrained rotationally by the motor of the machine through the agency of a mechanism not illustrated in the draw-: ings, the small rods which are charged supply current .to the corresponding electromagnets when thefsaid rods pass opposite the contacts 26.
The machine will comprise a plurality of discs 25 havingpdifferent perforations, which will be readily intermodify the and could be replaced by-a dilferent mechanism, whereas the electromagnets 12 to 15 are selectors for the position which the control member 6 is to occupy.
The control device which is described and illustrated could be applied to the work feed device 29 (FIGURE 4) instead of being applied to the needle. In this case it would be advantageous not to control the work feed device directly but to control an intermediate selector member known in the sewing machine field, for determining the amplitude of the movements of the work feed device which are produced by the motor of the machine.
What I claim is: I
1. In a control device for controlling the position of a machine element, especially for controlling the position of the needle bar or of the work feed device of a sewing machine, a digital programme controller furnishing electric signals, a series of electromagnets to which the said signals are transmitted, a seriesof mobile abutments controlled by the said electromagnets and each adapted to occupy two positions, a withdrawn position and a working position, a slidable control member which is connected mechanically to the said element which is to be controlled and finally a driving member operatively connected to said control member displacing it in the one or the other direction, the said control member comprising arresting surfaces distributed as a number of pairs, the two surfaces of each pair facing each other, each of the aforesaid mobile abutments cooperating with one pair of the said arresting surfaces, more precisely with one or with the other surface of the said pair, depending on the direction in which the said control member is moving at the instant when the said abutment comes into its working position, whereby each mobile abutment determines two stopping positions of the control member.
2. tin a control device for controlling the position of a machine element, especially for controlling the position of the needle bar or of the work feed device of a sewing machine, a digital programme controller furnishing electric signals, a series of electromagnets to which the said signals are transmit-ted, a series of mobile abutments controlled by the said electromagnets and each adapted to occupy two positions, a withdrawn position and a working position, a slidable control member which is connected mechanically to the said element which is to be controlled and finally a driving member operatively connected to said control member for displacing it in the one or the other'direction, the said control member being formed with perforations into each of which one of the said mobile abutments is adapted to penetrate, and whose diametrically opposite lateral walls constitute arresting surfaces for said abutments, whereby each mobile abutment determines two stopping positions of the control member depending on whether the latter has come into contact with the abutment when being displaced in one direction or the other.
3. In a control device for controlling the position of a machine element, especially for controlling the posi- .said control member for moving it respectively in one direction or the other, the said control member comprising arresting surfaces distributed as a number of pairs, the two surfaces of each pair facing each other, .each of the aforesaid mobile abutments cooperating with one pair of the said arresting surfaces, more precisely with one or with the other surface of the said pair, depending on the direction in which the said control memher is moving at the instant when the said abutment comes into its working position, whereby each mobile abutment determines two stopping positions of the control member.
4. In a control device for controlling the position of a machine element, especially for controlling the position of the needle bar or of the work feed device of a sewing machine, a rotatable perforated disc constituting a digital programme controller, electrical contacts controlled by said disc, a series of electromagnets operated by said contacts, a series of mobile abutments controlled by said electromagnets and each adapted to occupy two positions, a withdrawn position and a working position, a slidable control member which is connected mechanically to the said element which is to be controlled and finally a driving member operatively connected to said control member for displacing it in the one or the other direction, the said control member comprising arresting surfaces distributed as a number of pairs, the two surfaces of each pair facing each other, each of the aforesaid mobile abutments cooperating with one pair of the said arresting surfaces, more precisely with one or with the other surface of the said pair, depending on the direction in which the said control member is moving at the instant when the said abutment comes into its working position, whereby each abutment determines two stopping positions of the control member.
References Cited in the file of this patent Sotzky Aug. 20, 1957
US728823A 1957-05-09 1958-04-16 Sewing machine whereby stitches forming various patterns can be produced automatically Expired - Lifetime US3005136A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847100A (en) * 1974-01-09 1974-11-12 Singer Co Pattern selection system for sewing machines
US3855956A (en) * 1973-07-05 1974-12-24 Singer Co Sewing machine stitch pattern generation from stitch data stored in static memory
US3872808A (en) * 1973-07-05 1975-03-25 Singer Co Sewing machine stitch pattern selection from data stored in a multiple pattern static memory
DE2500234A1 (en) * 1974-01-08 1975-07-17 Singer Co ORNAMENTAL SEWING MACHINE
US3913506A (en) * 1974-11-26 1975-10-21 Singer Co Pattern selection system for sewing machines
US3977338A (en) * 1975-05-21 1976-08-31 The Singer Company Feed reversing arrangement for sewing machines
DE2906718A1 (en) * 1978-02-21 1979-08-23 Necchi Spa HOUSEHOLD SEWING MACHINE

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL271643A (en) * 1960-11-26 1900-01-01

Citations (5)

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Publication number Priority date Publication date Assignee Title
US2410295A (en) * 1943-01-19 1946-10-29 Gen Electric Automatic pattern controlled machine tool
US2649065A (en) * 1948-12-07 1953-08-18 Electrotext Corp Embroidery machine and coded-tape control means
US2656497A (en) * 1950-02-10 1953-10-20 Collins Radio Co Shaft positioning system
US2801371A (en) * 1951-11-30 1957-07-30 Riondel Pierre Automatic combination stop mechanism
US2803207A (en) * 1953-08-26 1957-08-20 Sotzky Bernard Electro-mechanical transmission system for sewing machines

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1003055A (en) * 1946-11-27 1952-03-13 Stein Chemie Kommanditgesellsc Electric sewing machine
FR1009243A (en) * 1948-05-28 1952-05-27 Automatic sewing machine for foot covers and the like

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2410295A (en) * 1943-01-19 1946-10-29 Gen Electric Automatic pattern controlled machine tool
US2649065A (en) * 1948-12-07 1953-08-18 Electrotext Corp Embroidery machine and coded-tape control means
US2656497A (en) * 1950-02-10 1953-10-20 Collins Radio Co Shaft positioning system
US2801371A (en) * 1951-11-30 1957-07-30 Riondel Pierre Automatic combination stop mechanism
US2803207A (en) * 1953-08-26 1957-08-20 Sotzky Bernard Electro-mechanical transmission system for sewing machines

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855956A (en) * 1973-07-05 1974-12-24 Singer Co Sewing machine stitch pattern generation from stitch data stored in static memory
US3872808A (en) * 1973-07-05 1975-03-25 Singer Co Sewing machine stitch pattern selection from data stored in a multiple pattern static memory
DE2500234A1 (en) * 1974-01-08 1975-07-17 Singer Co ORNAMENTAL SEWING MACHINE
US3984745A (en) * 1974-01-08 1976-10-05 The Singer Company Sewing machine stitch pattern generation using servo controls
US3847100A (en) * 1974-01-09 1974-11-12 Singer Co Pattern selection system for sewing machines
US3913506A (en) * 1974-11-26 1975-10-21 Singer Co Pattern selection system for sewing machines
US3977338A (en) * 1975-05-21 1976-08-31 The Singer Company Feed reversing arrangement for sewing machines
DE2906718A1 (en) * 1978-02-21 1979-08-23 Necchi Spa HOUSEHOLD SEWING MACHINE
US4280424A (en) * 1978-02-21 1981-07-28 Necchi S.P.A. Household type sewing machine having microprocessor control
USRE32143E (en) * 1978-02-21 1986-05-13 Necchi S.P.A. Household type sewing machine having microprocessor control

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CH340124A (en) 1959-07-31
GB833310A (en) 1960-04-21
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NL226677A (en)
FR1200324A (en) 1959-12-21
NL98896C (en)

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