US3113537A - Machine for sewing on designs including buttonholes - Google Patents

Machine for sewing on designs including buttonholes Download PDF

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Publication number
US3113537A
US3113537A US71043A US7104360A US3113537A US 3113537 A US3113537 A US 3113537A US 71043 A US71043 A US 71043A US 7104360 A US7104360 A US 7104360A US 3113537 A US3113537 A US 3113537A
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US
United States
Prior art keywords
machine
lever
needle
control
sewing
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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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US71043A
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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
Original Assignee
Necchi SpA
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Publication date
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B19/00—Program-controlled sewing machines
    • D05B19/02—Sewing machines having electronic memory or microprocessor control unit
    • 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
    • D05B3/06—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 for sewing buttonholes

Definitions

  • the principal object of the invention is to provide a control device which will control mechanism for moving the needle laterally, so that the mean position and lateral movement of the needle may be uniform under certain conditions and may vary under other conditions, in accord with a program device providing a pattern of operation for forming a design.
  • Another object of the invention is the provision of a control device which will control mechanism for feeding the material being sewn in both directions and mechanism for moving the needle laterally, so that the mean position and lateral movement of the needle may vary, the control device comprising a program device embodying a pattern of operation to control the several movements so as to produce a design in the sewing, said program device being retained against variation to maintain uniform operation and alternately rendered operative to provide variation in the operations.
  • a further object is the provision of specific mechanism for the production of buttonholes.
  • FIG. 1 is an elevation of the machine, with part shown in section on the line I--I of FIG. 2;
  • FIG. 2 is a plan view of the mechanism in FIG. 1, with a portion of the casing omitted;
  • FIG. 3 shows a part of the mechanism of FIG. 2 on a larger scale
  • FIG. 4 is a cross-section on line IVlV of FIG. 3;
  • FIG. 5 is a plan view of the cam group as shown in FIG. 3 but on a larger scale;
  • FIG. 6 is a sectional view on line VI--VI of FIG. 5;
  • FIG. 7 is a section on line VII--VII of FIG. 6;
  • FIG. 8 shows a detail of FIG. 1 on a larger scale
  • FIG. 9' is a view taken on line IXIX of FIG. 8;
  • FIG. 10 illustrates the design of a buttonhole which may be formed by the machine
  • FIG. 11 is a fragmentary view of the machine, partially in section, showing another embodiment of the device.
  • FIG. 12 is a view taken on line XIIXII on a larger scale
  • FIG. 13 is a diagrammatic View of the electrical circuit of the embodiment in FIG. 11;
  • FIG. 14 is a sectional view on line XIVX1V of FIG. 11.
  • the sewing machine comprises a frame 1 in which is arranged a driving shaft 2 which operates mechanism to reciprocate the needle 3 fixed to needle bar 4 by screw 5.
  • the shaft '2. also drives a vertical shaft 6 journaled in plate 7 by means of conventional mechanism 8.
  • the followers 9, 10, 11 are pivoted on a vertical pin 12 fixed to plate 7 so that they may engage cams 13, 14, 15 driven by shaft 6.
  • These cams have extensions or tail portions 16, 17, 18, respectively, which lie in the path of downwardly turned end 19 of lever 20, which is pivoted on pin 12.
  • a spring 21 connected to the end 19 urges lever counterclockwise (FIG. 3) so that its opposite end bears against stud 22 on lever 23.
  • the lever 23 is mounted for rotation on pin 24 fixed to plate 7, and extends outwardly through slot 25 in the frame.
  • the outer end is formed with a finger piece so that the lever 23 may be manually rotated as indicated by arrow at (FIG. 3) to rotate lever 20 and engage its bent end 19 with the tail portions 16, 17, 18 of followers 9, 10, 11, so that the followers are moved clear of the cams to allow the cams to be assembled and disassembled through the door 26 in frame 1 (FIG. 1).
  • the cams 13, 14, 15 and followers 9, 10, 11 constitute a program device and sensing means and are part of the control means which controls, respectively, the displacement of the sewing line or the mean position of the needle, the adjustment of the zigzag or extent of lateral movement of the needle and the variation in feed of the fabric, including the direction of feed.
  • the projection 27 on follower 9 and the projection 28 on follower 16 act on levers 29, 36', respectively, to shift the mean position of the needle and to change the extent of lateral movement of the needle.
  • the cams 13, 14, 15, which constitute the program de vice in the present embodiment, are formed integrally and are rotatably mounted on a bushing 32 fixedly mounted on shaft 6 by the rectangular slot 33 engaging the lug 34 on the end of shaft 6.
  • the cams are impositively driven by the bushing through a coil spring 3 5 and disk 36, the spring 35 having one end 38 fixed to the set of cams by screw 39 and the other end 41 abutting a key 42 on the disk 66, said key 42 being engaged with slight angular play in axial groove 43 on the inner surface of the cam group 40.
  • the disk 36 is rotatably mounted on said bushing and held thereon by the split stop ring 37.
  • the periphery of the disk 36 is formed with radial abutments or steps 46a, 46b, 46c spaced by continuous segments 45a, 45b, 450 (FIG. 7). These abutments or steps may be engaged by the tooth 47 of a pawl 48 which is pivoted on the frame by a shaft 49 and held against the disk 36 by spring 50 (FIG. 1).
  • the pawl 48 rides on segment 45a of disk 36, the followers 9, 10, 11 contact the cams 13, 14,
  • step 46a the disk 36 and cam group 40 are stopped in such a position that the program device and sensing means remain in a uniform condition; that is, the cams are stationary so as to cause a uniform operation, here shown as the row of stitching at 52a, the length of which will depend on the duration of the engagement of the step by the pawl 48.
  • the program device or cams produce a variable condition to vary the mean position of the needle and the length of stitch, and also a reversal in the direction of feed of the fabric.
  • the cam group 40 is stopped by step 46b to produce the uniform stitching 52b and then, as pawl 48 moves along segment 450, the buttonhole section 510 is formed.
  • the pawl 48 engages step 46c to make the stitches 52c, and as cam stops feed of the fabric, the machine is stopped.
  • the pawl 48 may be released from the steps of disk 36 manually, by means of an extension 48 accessible on the exterior of the machine.
  • the pawl may also be released automatically under control of the feed of the material being sewn through operation of lever 53 (FIG. 1) connected to shaft 49 and arranged with its end 54 adjacent presser bar 55.
  • the presser bar 55 carries a support 57 fastened by screw 56, the support having a base 58 on which is slidable a slide 59.
  • This slide is serrated on its bottom surface so that it can be displaced by the fabric.
  • a bracket 61 On slide 59, a bracket 61 has an inclined stop or end cam 62 which may be adjusted along the slide by slot 63 and screw 64.
  • the other end of the slide has a fixed, inclined stop or end cam 65.
  • the slot may be graduated to determine the position of the movable end cam.
  • lever 67 is pivoted on the support 57 on presser bar 55 by screw 68.
  • the other end 69 of lever 67 is rotated in the direction of arrow w (FIG. 9) when the end 66 engages one of the end cams 62, 65, and engages end 54 of lever 53 to disengage pawl 48 from a step on disk 36.
  • a pin 70 on lever 67 rides on the edge 71 of the bracket 61 to prevent reverse movement of lever 67.
  • the cam 65 rotates lever 67 to release pawl 48 from step 46a, and the program device controls the formation of the section 51b and also the reversal of feed of the fabric.
  • the slide then moves cam 65 away from lever 67, the tooth 47 of pawl 48 rides on segment 45b of disk 36 until the next abutment 46b, and the program device then, through the sensing means or followers, controls the making of the uniform section 52b.
  • the cam 62 engages lever 67 to release pawl 48 from step 46b, and the program device and sensing means control the formation of buttonhole section 51c, the feed of the fabric again being reversed.
  • the ma chine continues to make the section 520 until the machine stops.
  • An automatic stop is also provided to stop the machine at the end of a sewing cycle, after a complete revolution of cams 13, 14, 15.
  • a shaft 96 passes through hollow shaft 49 to form a journal and provides a pivot for lever 97 formed with an end portion 98 protruding through a slot 99 in frame 1.
  • a microswitch 105 actuated by pushbutton 106 is mounted on lever 97, so that the end 107 of a lever 108 pivoted on pin 12 may engage the button 106 to open the switch and stop the machine.
  • a spring 109 on pin 96 acts on lug 110 on lever 108 and lug 111 of lever 97 to move lever 108 into contact with stop 112 of lever 97 and out of contact with pushbutton 106.
  • Lever 108 is formed with a projection 113 engageable by a cam 114 on the cam group 40 to rotate lever 108 into contact with pushbutton 106 when tooth 47 of pawl 48 engages stop 46c and the cams control the making of closing stitch 520.
  • the machine will not stop instantly on opening switch 105, but the inertia of the machine may result in more than one closing stitch 520.
  • the lever 48 is moved from engagement with step 46c, either by its handle portion 48' or by moving slide 59, and then the end 98 of lever 97 is moved toward the stop 101 to move microswitch 105 away from end 107 of lever 108 to close the switch.
  • the machine will move the cam 114 from lever 108, and the latter is rotated by spring 109 into contact with lug 112 on lever 97, the latter now being allowed to return into contact with shoulder 100.
  • a bent tongue 115 on lever 97 overlies the edge of lever 48, so that lever 48 may be actuated by moving end 98 of lever 97.
  • the lever 20 carries an adjustable abutment 116 fastened by screw 117, which may engage lever 108 to move it clear of the cam group 40.
  • lever 23 when lever 23 is moved in the direction x (FIG. 3) to clear followers 9, 10, 11, it also moves lever 108 out of engagement with the cam group and also into engagement with switch 105 to open the switch and to move lever 97 and pawl 48 so that pawl 48 is out of engagement with disk 36. All elements are now disengaged from the cams on operation of lever 23, so that the groups of cams may be replaced.
  • FIGS. 11, 12, 13 An electrically actuated system to operate pawl 48 automatically is shown in FIGS. 11, 12, 13.
  • the machine is provided with a light 76 to illuminate the sewing area.
  • the actuating means comprises a photosensitive element 81, excited by the light under control of lever 67 and actuating a switch 93 to close a circuit to solenoid 95 which disengages pawl 48.
  • a plate 74 fastened to the frame by screw 73 is formed with a hole 75, which is exposed to light 76 and is closed by a shutter 78 pivoted at 74 and held in closure position by spring 79.
  • the end of shutter 78 is engageable by lever 67 operated by slide 59 to open the hole 75 to admit light.
  • a photoresistor 81 may receive light when the opening is unobstructed.
  • This photoresistor is in a circuit comprising from terminal 83 of transformer 77, rectifier circuit 84 having a rectifier and capacitor 86, resistor 87 across terminals 88 and 89 of a transistor 82, and photoresistor 81 protected by resistor 90.
  • EX- posure of the photoresistor 81 to the light 76 develops a potential difference across terminals 88, 89 and produces a current in the circuit 91 of the transistor to energize winding 92 of relay 93 to close switch 94 to the circuit of solenoid 95.
  • This solenoid operates lever 53' to rotate pawl 48 out of engagement with a step in disk 36.
  • the operation of the machine under control of the electrical system is the same as in the first embodiment described above.
  • a sewing machine having a driving mechanism, a needle actuated by said driving mechanism, means operated by said driving mechanism for moving said needle laterally of the sewing path, and control means for controlling the means for moving said needle laterally to vary the lateral movement of said needle, said control means including a program device actuated by said driving mechanism having successive variable and uniform control conditions, sensing means responsive to said pro-.
  • said program device for controlling said means for moving said needle laterally, said program device in said variable control condition effecting action of said sensing means to control said lateral movement in accord with a pattern inherent in said control device, and in said uniform condition being ineffective to change said lateral movement, and means operable to change said program device from one condition to the other, said last-named means being responsive to movement of the material to change said program device from one condition to another.
  • a sewing machine having a driving mechanism, a needle actuated by said driving mechanism, means operated by said driving mechanism for moving said needle laterally of the sewing path, and control means for controlling the means for moving said needle laterally to vary the lateral movement of said needle
  • said control means including a program device having cam means operated by said driving mechanism, means actuated by the cam means of said program device for varying the extent of said lateral movement, stop means to arrest movement of said cam means in successive positions, and release means to release said stop means and restore operation of said cam means, so as to produce uniform lateral movement during arrest of said cam means, and variable lateral movement during motion of said cam means, machine control mechanism operative to stop the machine, and said control means including an element fixed to said cam means to actuate smd machine control mechanism, said element being operative concomitantly with the arrest of movement of said cam means.
  • said machine control mechanism includes a machine control member operative to start said machine, and said release means actuates said machine control member to start the machine when the machine is stopped.
  • a sewing machine having a driving mechanism, a needle actuated by said driving mechanism, means operated by said driving mechanism for moving said needle laterally of the sewing path, and control means for controlling the means for moving said needle laterally to vary the lateral movement of said needle
  • said control means including a program device comprising cam means operated by said driving mechanism, a stepped member fixed to said cam means, a stop member engageable with the steps on said stepped member to arrest operation of said cams, follower means engageable by said cam means for controlling the lateral movement of said needle, re-
  • a machine having driving mechanism, cam means operated by said driving mechanism, machine control means operable to start and stop said machine, actuating means movable to operate said machine control means to stop said machine, an abutment member movable in fixed relation to said cam means and having abutment means, a stop member movable to engage said abutment means to arrest operation of said cam means, an element movable in fixed relation to said cam means for moving said actuating means to stop said machine, said stop member engaging said abutment means concomitantly with the movement of said actuating means so that the machine is stopped with the stop member engaging said abutment means, and release means for moving said stop member to release said cams for operation and for moving said machine control means to start said machine.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Sewing Machines And Sewing (AREA)
US71043A 1960-03-28 1960-11-22 Machine for sewing on designs including buttonholes Expired - Lifetime US3113537A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT533560 1960-03-28

Publications (1)

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US3113537A true US3113537A (en) 1963-12-10

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US71043A Expired - Lifetime US3113537A (en) 1960-03-28 1960-11-22 Machine for sewing on designs including buttonholes

Country Status (6)

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US (1) US3113537A (fr)
BE (1) BE600651A (fr)
CH (1) CH383132A (fr)
DE (1) DE1183349B (fr)
DK (1) DK105248C (fr)
GB (1) GB902346A (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172379A (en) * 1961-02-15 1965-03-09 Light Bert Devices for use in stitching together plies of fabric
US3596618A (en) * 1970-04-17 1971-08-03 Singer Co Automatic buttonhole mechanisms for zigzag sewing machines
US3656443A (en) * 1970-11-04 1972-04-18 Singer Co Button holing system for household sewing machines
US3841246A (en) * 1973-11-09 1974-10-15 Singer Co One step buttonhole operating and indicating devices
US4096811A (en) * 1977-07-07 1978-06-27 The Singer Company Interlock for buttonhole sewing presser device
US4196680A (en) * 1979-03-09 1980-04-08 The Singer Company Control device for use in sewing buttonholes
US4197803A (en) * 1979-04-30 1980-04-15 The Singer Company Visual aid improvement to a presser device for sewing buttonholes
US4232617A (en) * 1979-04-16 1980-11-11 The Singer Company One-step buttonholer with hall effect sensor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH387424A (it) 1961-05-08 1965-01-31 Necchi Spa Dispositivo di comando degli spostamenti di una leva che controlla le rotazioni di un gruppo di camme di una macchina per cucire

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US592510A (en) * 1897-10-26 Sewing-machine
US1033721A (en) * 1905-09-08 1912-07-23 Henry C Miller Buttonhole-sewing machine.
US2475432A (en) * 1945-08-18 1949-07-05 Leo A Marihart One-revolution clutch
US2764895A (en) * 1954-10-27 1956-10-02 Vittorio Necchi Societa Per Az Device for converting oscillatory motion into variable amplitude intermittent unidirectional movement
US2924107A (en) * 1958-01-14 1960-02-09 Mefina Sa Control mechanism for the displacements of a machine part
GB830501A (en) * 1955-01-19 1960-03-16 Phoenix Nahmaschinen A G Baer Improvements relating to zig-zag sewing machines
US2966869A (en) * 1955-11-10 1961-01-03 Wittenberge Naehmasch Veb Zig-zag sewing machine
US2979002A (en) * 1956-02-18 1961-04-11 Mefina Sa Sewing machines

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE17189C (de) * I. W. SWAN in Newcastle-upon Tyne (England) Neuerung an Apparaten zum Messen und Registriren elektrischer Ströme
DE18041C (de) * Dr. H. WEBER in Malstatt-Burbach a. d. Saar Selbstthätige Kuppelung für Eisenbahnfahrzeuge
DE1048128B (de) * 1958-03-05 1958-12-31 Meister Werke G M B H Verfahren zur Herstellung von Knopfloechern mittels einer Zickzacknaehmaschine und Einrichtung zur Durchfuehrung des Verfahrens

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US592510A (en) * 1897-10-26 Sewing-machine
US1033721A (en) * 1905-09-08 1912-07-23 Henry C Miller Buttonhole-sewing machine.
US2475432A (en) * 1945-08-18 1949-07-05 Leo A Marihart One-revolution clutch
US2764895A (en) * 1954-10-27 1956-10-02 Vittorio Necchi Societa Per Az Device for converting oscillatory motion into variable amplitude intermittent unidirectional movement
GB830501A (en) * 1955-01-19 1960-03-16 Phoenix Nahmaschinen A G Baer Improvements relating to zig-zag sewing machines
US3001491A (en) * 1955-01-19 1961-09-26 Anker Phoenix Nahmaschinen Ag Control means for zig-zag sewing machine having automatically disconnectable control mechanism
US2966869A (en) * 1955-11-10 1961-01-03 Wittenberge Naehmasch Veb Zig-zag sewing machine
US2979002A (en) * 1956-02-18 1961-04-11 Mefina Sa Sewing machines
US2924107A (en) * 1958-01-14 1960-02-09 Mefina Sa Control mechanism for the displacements of a machine part

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172379A (en) * 1961-02-15 1965-03-09 Light Bert Devices for use in stitching together plies of fabric
US3596618A (en) * 1970-04-17 1971-08-03 Singer Co Automatic buttonhole mechanisms for zigzag sewing machines
US3656443A (en) * 1970-11-04 1972-04-18 Singer Co Button holing system for household sewing machines
DE2154515A1 (de) * 1970-11-04 1972-05-10 The Singer Co., Elizabeth, N.J. (V.St.A.) Knopflochmechanismus für Nähmaschinen
US3841246A (en) * 1973-11-09 1974-10-15 Singer Co One step buttonhole operating and indicating devices
US4096811A (en) * 1977-07-07 1978-06-27 The Singer Company Interlock for buttonhole sewing presser device
US4196680A (en) * 1979-03-09 1980-04-08 The Singer Company Control device for use in sewing buttonholes
US4232617A (en) * 1979-04-16 1980-11-11 The Singer Company One-step buttonholer with hall effect sensor
US4197803A (en) * 1979-04-30 1980-04-15 The Singer Company Visual aid improvement to a presser device for sewing buttonholes

Also Published As

Publication number Publication date
DE1183349B (de) 1964-12-10
BE600651A (fr) 1961-06-16
CH383132A (it) 1964-10-15
DK105248C (da) 1966-09-05
GB902346A (en) 1962-08-01

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