US2900937A - Sewing machines - Google Patents

Sewing machines Download PDF

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Publication number
US2900937A
US2900937A US435832A US43583254A US2900937A US 2900937 A US2900937 A US 2900937A US 435832 A US435832 A US 435832A US 43583254 A US43583254 A US 43583254A US 2900937 A US2900937 A US 2900937A
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United States
Prior art keywords
lever
cam
axle
fork
drive shaft
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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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US435832A
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English (en)
Inventor
Gegauf Fritz
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.)
Fritz Gegauf AG
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Fritz Gegauf AG
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Filing date
Publication date
Application filed by Fritz Gegauf AG filed Critical Fritz Gegauf AG
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Publication of US2900937A publication Critical patent/US2900937A/en
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B19/00—Programme-controlled sewing machines

Definitions

  • iii-lig. isralongitudinal sectionnhroughstheaupper part 2,900,937; Patented VAng. 25, 1959 r-z Zo'f a sewing machine comprising two gears for the Ntransverse oscillation of the needle;
  • Fig. 2 is a partial longitudinal section through the ⁇ upper'part ofthe sewing machine serving'to more clearly 'show certain moving parts;
  • Fig 3 shows a detail ofFig. .1, illustrating two transmitting members loosely (arranged on the ⁇ axle offthe Vguide lever;
  • Fig ⁇ 5 is ai partly sectional top plan view to Fig. ⁇ 1 with the upper cover plate removed and showing 'the arrangementof the complete mechanism
  • Figs 68 are enlarged cross sections taken along the lines VI-VL VIl-Vll and VIIl---VIII, ⁇ respectively, of
  • reference numeral 1 designates the hollow standard or framepost of the ⁇ sewing machine carrying the upper or 4horizontal hollow arm 2 with the cover '3 closing said arm 2.
  • this arm 2 the upper drive shaft 4 of the machine is supported, this shaft carrying the conventional handwheel 5 and being rotatable by atransmission string 6 driven by the usual driving means ⁇ (not shown).
  • lithis drive is transmitted, Lby means of the cam ⁇ disc 47 to crank pin 8, the link member-9 and the'driver
  • the needle bar 11, which carrries the sewing needle '(not shown) is movably guided, ⁇ according'to commonpractice, inra swingable frame'lZ, Which receives its oscillatory motion over a hinge 13 from ⁇ albar T14 forming an extension of a guiding fork l5 pivoted ron a pin 16.
  • the needle bar '1'1 receivesin a Vknown way, the transverse motion necessary for producing a zig-zag seam.
  • the drive shaft 4 .transmits its rotary motion to .two gears.
  • the spiral wheel 20 secured by the screw 2 ⁇ 1 on the shaft 4 drives the spiral wheel 24 mounted on ⁇ a shaft 2'21an ⁇ d ⁇ carrying thecam 23.
  • This. cam 23 imparts to the fork 25, which is [loosely .arranged on theiaxle or shaft 18, the latter carrying guide lever 17, a pendulum motion.
  • Fork 2S ismprovided with a slot '25a (Figs. '3 and '4), for
  • FIGs f2, 4, 7 and ⁇ 8 reference numeral Z6 designates a support rigidly mofunted on said axle '18 and provided .with a slidable ⁇ coupling member 27 having a pin 28.
  • a "two-iarm Vtransmission lever 29 A is loosely mounted on axle 18 (Figs. l, ⁇ 3, 4, 5, 7 and 8"), which transmission lever has ⁇ one arm provided with a slot 291i '(lFigs. "3 and 4), "the other arm'ibeing Ibifurcated to receive ⁇ a vroll 30.
  • cam discs 318 are i driven by a iworm B9 rigidly secured on the shaft 4 by means of a screw 40 and driving at reduced speed a worm wheel 41 mounted on an axle 4t2 together with the cam discs 38 (Figs. 1 and 5).
  • FIG. 5 designates a spring co-operating with the arm 33 of the two-arm lever 33, 31 for pressing the feeler 34 in the direction of the cams 38.
  • a stationary strip ES (Figs. l, 2 and 6) is provided at one side with a number of notches and a spring d6 (Fig. 2) serves to press the stop 47 of the lever 35 into the notch corresponding to the selected cam disc.
  • a dial 49 is provided on the cover 3 of the upper arm 2 near the lever 35, and this dial comprises a number of marks corresponding to the number of diierent cams.
  • the cam disc 23 rotating on the shaft 22 imparts a pendulum motion to the fork 25 loosely mounted on the axle l.
  • the coupling element 27, which is slidably arranged in a groove of the support 26 rigidly mounted on the axle 18, is inserted into the slot 25a of the fork 2.5 (Figs. 3 and 4) by means of the levers 35 and 43 (Fig. 2), the guide lever 17 receives the well-known, guided oscillatory motion for the production of zig-zag seams.
  • the guide lever 17 is thus coupled to the elements of the one or the other of the afore-described gears, which two gears operate at different speeds.
  • only one of the two gears may co-operate with the guide lever 17 at the saine time.
  • the combination according to the present invention renders possible the production of ornamental seams at high speed, if, when the guiding gear is used, the knob arranged at the outside of the machine is actuated by hand. This is a further important advantage of the machine according to the invention.
  • the actuating lever 43 for the coupling member 27 could be formed as an independent, additional lever adapted to be actuated (as lever 35) from the outside of the machine.
  • the two separately driven gears may be of such a construction that the motion of the second ⁇ gear is transmitted by the driven shaft of the rst gear.
  • the coupling itself may be obtained in many different ways. Fo-r example the represented coupling member may be replaced by a coupling catch adapted to be switched either to the left or to the right.
  • a sewing machine having a hollow, substantially horizontal arm in which is journalled a substantially horizontal drive shaft, a needle bar, and a frame for guiding said needle bar and arranged for swinging movement relative to said drive shaft; means connecting said needle bar and said frame in driving relation to said drive shaft for imparting to said needle bar a reciprocable longitudinal movement and a transverse swinging movement, said connecting means including first means for producing zig-Zag stitches and second means for producing ornamental stitches, respectively, carried out by a needle when joined to said needle bar, respective sets of gear means accommodated in said horizontal arm and operatively connecting said drive shaft with said rst means and said second means, respectively, a swingable guide lever including a pin for attachment with said connecting means and slidable within said guide lever, whereby ⁇ upon slidable displacement of said pin on said guide lever the amplitude of motion of said connecting means may be varied, an axle journalled in said hollow arm and supporting said guide lever, said lirst means including a cam driven by one set of said gear means
  • a sewing machine having a substantially .horizontal drive shaft, a needle bar, and a swingably supported frame for said needle bar; means connecting said needle lbar and said frame in operative relation to said drive shaft whereby to said needle bar a reciprocable longitudinal movement and a transverse swinging movement are imparted for producing Zig-zag stitches and ornamental stitches, respectively, by a needle when carried by said needle bar, respective means interconnecting said drive shaft with operable means provided adjacent the latter for moving said connecting means to cause said zig-zag stitches and said ornamental stitches, respectively, said operable means including Ia swingable guide lever with a member :for attachment with said connecting means, an axle supporting said guide lever, said operable means comprising first means and second means in driving relation with said drive shaft, said rst means including a driven cam, a fork loosely seated on said axle and actuatable by said cam to thereby impart swinging movement to said fork, coupling means supported by said axle ⁇ and arranged for sliding displacement thereon, a manually operated
  • a sewing machine having a substantially horizontal -hollow arm with a drive shaft journalled therein, a needle bar actuatable by said drive shaft to perform a reciprocablelongitudinal movement, and aneedle bar frame swingably Vsupported 'by said arm; comprising rod means connecting said frameof said needle 'bar in operative relation .with said drive shaft whereby said needle bar performs 'besides saidlongitudina-l movement ⁇ a transrverse swinging movement for Vproducing zig-zag stitches and .ornamental stitches, respectively, ⁇ by a needle when carried Iby rsaid needle "bar, operable means positioned about and adjacent said drive shaft and journalled in said hollow arm, respective gear means driven by said drive shaft for actuating said operable means and to move said rod means therebycausing Asaidzig-zag stitches and said ornamental stitches, respectively, a swingable guide lever attached tosaid rodmeans,anaxle supported insaid arm Y and oscillatably carrying said guide lever, said operable means comprising
  • a sewing machine having -a substantiallyhorizontal hollow 'arm with ,a ⁇ drive shaft journalled therein, a needle bar actuatable by said drive ⁇ shaft toperforma reciprocable longitudinal movement, :and a needle .bar frame swingably supported in said ;arm;a c omprising rod means operatively connecting said frame with said drive shaft
  • operable means "positioned adjacent ⁇ said drive shaft and journlled ⁇ in Asaid hollow arm, respcctivesets of gear :means rotated by :said :drive shaft, a .swingable guide lever :attached :to said ⁇ rod means, an axle ,'supported in said arm -androscillatably Lcarryingsaid guide lever, said operable meansicompri
  • ⁇ said ⁇ second :means including at leastonecam disc means .inoperative ⁇ relation with .another set of said Agear means, and further means cooperableV ⁇ with said cam disc :means and connected :to said manuallever to thereby couple whenthe latter fis moved in ⁇ an oppositedirectionf said couplingmeans with a'tportion -of said ⁇ further means and ⁇ through the ⁇ latter with said guide lever and saidrod means.
  • said further means including a lfeeler for contact with said one VAcam disc means, and a transmission lever ⁇ loosely seated'lon said axle, 'said rcoupling Vmeans being engageable witha portion of sai-d transmission lever upon movement of 'said manual "lever in said 'Opposite direction, ⁇ whereby ⁇ -said transmission lever is coupled to said "axle, which *then takes bupthe swinging movements -of said transmission lever initiated fbysaid Afeeler and-said cam disc means for transmission to said swingable guide lever and said lrod means.
  • a sewing machine including a plurality of cam disc means, means for guiding said feeler upon movement of said manual lever, and stop means on said manual lever for facilitating adjustment of position of said feeler relative to said cam disc means.
  • each set of said gear means is provided with a driven shaft extending substantially perpendicular to said drive shaft and substantially parallel to said axle, said driven shafts being journalled in an inner wall dening the space of said hollow arm.
  • a sewing machine according to claim 9, one of said drivenshafts carrying said cam of saidv first means, the other driven shaft supporting said cam disc means of said second means.
  • a sewing machine wherein said cam disc means and said cam are positioned at one longitudinal side of said drive shaft, said guide lever and connectingV rod means extending at the opposite longitudinal side of said drive shaft.
  • said coupling means being constituted by a pin arranged for sliding Ymovement in a groove provided in said support, a bifnrcated lever linked to said manual lever and engaging said pin for displacement in said groove, said fork being provided with a slot arranged in the path of displacement of said pin and for engagement therewith in said one position of said manual lever, whereby said fork is coupled to said axle and thence to said guide lever.
  • said further means including a feeler, and a transmission lever loosely seated on said axle and provided with a slot, said manual lever when displaced into said opposite direction causes through said bifurcated lever sliding displacement of said pin into engagement with said slot of said transmission lever to thereby couple said axle to said cam disc means of said second means, said feeler being connected to said manual lever and being cooperable with said cam disc means to perform movements thereby, said feeler being operatively connected to said transmission lever to transfer said feeler movements via said transmission lever to said axle and said guide lever.
  • a sewing machine comprising a frame, a needle bar pivotally carried by said frame and mounted for end- Wise reciprocation and for lateral swinging movements, a drive shaft, connecting means connecting said needle bar and said frame in operative relation to said drive shaft to impart to said needle bar movements for producing zigzag stitches and ornamental stitches, operable means adjacent said drive shaft for moving said connecting means to cause zig-zag stitches and ornamental stitches, said operable means including a swingable guide'lever having a member attached to said connecting means, an axle supporting said guide lever, said operable means further including first means and second means in driving engagement with said drive shaft, a fork loosely seated on said axle and actuated by said iirst means to impart swinging movement to said fork, said guide lever being coupled through a manual lever operated coupling means mounted on said axle with said fork oscillating said connecting means for producing zig-zag stitches, said second means including a plurality of driven cam disc means, a transmission lever provided with a slot, and feeler means cooperable with
  • a sewing machine comprising a frame, a drive shaft journalled in said frame, a needle bar pivotally carried by said frame and actuable by said drive shaft, rod means connecting said needle bar in operative relation with said drive shaft to produce movements for producing zig-zag stitches and ornamental stitches, operable means positioned about and adjacent said drive shaft and journalled in said hollow arm, respective gear means driven by said drive shaft for actuating said operable means and to move said rod means thereby caussing said zig-zag stitches and said ornamental stitches, respectively, a swingable guide lever attached to said said rod means, an axle supported in said arm and oscillatably carrying said guide lever, said operable means comprising tirst means and second means, said rst means including a cam in driving relation to said drive shaft, a fork loosely seated on said axle and engageable by said cam to thereby impart swinging movement to said fork, coupling means supported by and arranged for sliding displacement relative to said axle, a manually operated lever extending beyond said arm and connected to said coupling means for

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US435832A 1953-06-18 1954-06-10 Sewing machines Expired - Lifetime US2900937A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH755891X 1953-06-18

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US2900937A true US2900937A (en) 1959-08-25

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US (1) US2900937A (fr)
DE (1) DE1049674B (fr)
FR (1) FR1096140A (fr)
GB (1) GB755891A (fr)
NL (2) NL86808C (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035534A (en) * 1960-06-14 1962-05-22 White Sewing Machine Corp Sewing machine
US3039323A (en) * 1958-10-15 1962-06-19 Mori Miyoshi Cam control assembly
US3053206A (en) * 1959-01-09 1962-09-11 Emil Forster Sewing machines having ornamental stitch devices
US3057311A (en) * 1960-01-25 1962-10-09 Singer Mfg Co Cam mounting means for zigzag sewing machines
US3062164A (en) * 1958-09-08 1962-11-06 Riccar Sewing Machine Co Ltd Device for automatic zigzag sewing
US3064602A (en) * 1958-10-09 1962-11-20 Feza Mishin Seizo Kabushiki Ka Zigzag sewing apparatus in sewing machines
US3064603A (en) * 1959-10-21 1962-11-20 Fuji Seimitsu Kogyo Kabushiki Speed-changing cam device for zigzag sewing machines
US3065716A (en) * 1958-10-21 1962-11-27 Vigorelli Luigi Design stitching sewing machine
US3067702A (en) * 1959-01-27 1962-12-11 Riccar Sewing Machine Co Ltd Automatic and hand-operated apparatus for use in rotary type zigzag sewing machines
US3105449A (en) * 1961-03-16 1963-10-01 Singer Co Zigzag actuating mechanism for sewing machines
US3316868A (en) * 1959-02-02 1967-05-02 Janome Sewing Machine Co Ltd Buttonhole stitching device
US3788249A (en) * 1972-10-25 1974-01-29 Singer Co Sewing machine having a plurality of intelligence record systems associated therewith

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE540370A (fr) * 1954-08-06
GB839671A (en) * 1957-04-11 1960-06-29 Husqvarna Vapenfabriks Ab Improvements in sewing machines
IT1147232B (it) * 1981-06-10 1986-11-19 Necchi Spa Azionatore dela barra ago in macchine per cucire

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190819184A (en) * 1908-09-12 1909-06-24 James Magowan Improvements in Zig-zag or Variable Stitch Sewing Machines such as are generally used in the Production of Embroidery Work.
US1033721A (en) * 1905-09-08 1912-07-23 Henry C Miller Buttonhole-sewing machine.
US1338074A (en) * 1916-05-24 1920-04-27 Singer Mfg Co Embroidery-sewing machine
US1611372A (en) * 1924-03-15 1926-12-21 Nolde & Horst Co Control attachment for embroidery-sewing machines
US2297197A (en) * 1938-05-31 1942-09-29 Bolter Wilhelm Zigzag sewing machine
US2623487A (en) * 1950-03-14 1952-12-30 Marasco Anthony Selectively automatic, stitchvarying device
US2653557A (en) * 1949-12-17 1953-09-29 Mefina Sa Sewing machine
US2664058A (en) * 1950-04-07 1953-12-29 Flii Borletti Societa Per Azio Zig-zag stitch adjusting means
US2684649A (en) * 1950-07-25 1954-07-27 Vittorio Necchi S P A Device for embroidering automatically with zigzag sewing machines
US2693778A (en) * 1952-06-06 1954-11-09 Harris Carl Embroidering mechanism for zigzag sewing machines
US2755754A (en) * 1952-05-12 1956-07-24 Turissa Nachmaschinenfabrik A Sewing machine with zigzag arrangement

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1033721A (en) * 1905-09-08 1912-07-23 Henry C Miller Buttonhole-sewing machine.
GB190819184A (en) * 1908-09-12 1909-06-24 James Magowan Improvements in Zig-zag or Variable Stitch Sewing Machines such as are generally used in the Production of Embroidery Work.
US1338074A (en) * 1916-05-24 1920-04-27 Singer Mfg Co Embroidery-sewing machine
US1611372A (en) * 1924-03-15 1926-12-21 Nolde & Horst Co Control attachment for embroidery-sewing machines
US2297197A (en) * 1938-05-31 1942-09-29 Bolter Wilhelm Zigzag sewing machine
US2653557A (en) * 1949-12-17 1953-09-29 Mefina Sa Sewing machine
US2623487A (en) * 1950-03-14 1952-12-30 Marasco Anthony Selectively automatic, stitchvarying device
US2664058A (en) * 1950-04-07 1953-12-29 Flii Borletti Societa Per Azio Zig-zag stitch adjusting means
US2684649A (en) * 1950-07-25 1954-07-27 Vittorio Necchi S P A Device for embroidering automatically with zigzag sewing machines
US2755754A (en) * 1952-05-12 1956-07-24 Turissa Nachmaschinenfabrik A Sewing machine with zigzag arrangement
US2693778A (en) * 1952-06-06 1954-11-09 Harris Carl Embroidering mechanism for zigzag sewing machines

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3062164A (en) * 1958-09-08 1962-11-06 Riccar Sewing Machine Co Ltd Device for automatic zigzag sewing
US3064602A (en) * 1958-10-09 1962-11-20 Feza Mishin Seizo Kabushiki Ka Zigzag sewing apparatus in sewing machines
US3039323A (en) * 1958-10-15 1962-06-19 Mori Miyoshi Cam control assembly
US3065716A (en) * 1958-10-21 1962-11-27 Vigorelli Luigi Design stitching sewing machine
US3053206A (en) * 1959-01-09 1962-09-11 Emil Forster Sewing machines having ornamental stitch devices
US3067702A (en) * 1959-01-27 1962-12-11 Riccar Sewing Machine Co Ltd Automatic and hand-operated apparatus for use in rotary type zigzag sewing machines
US3316868A (en) * 1959-02-02 1967-05-02 Janome Sewing Machine Co Ltd Buttonhole stitching device
US3064603A (en) * 1959-10-21 1962-11-20 Fuji Seimitsu Kogyo Kabushiki Speed-changing cam device for zigzag sewing machines
US3057311A (en) * 1960-01-25 1962-10-09 Singer Mfg Co Cam mounting means for zigzag sewing machines
US3035534A (en) * 1960-06-14 1962-05-22 White Sewing Machine Corp Sewing machine
US3105449A (en) * 1961-03-16 1963-10-01 Singer Co Zigzag actuating mechanism for sewing machines
US3788249A (en) * 1972-10-25 1974-01-29 Singer Co Sewing machine having a plurality of intelligence record systems associated therewith

Also Published As

Publication number Publication date
NL186205B (nl)
GB755891A (en) 1956-08-29
FR1096140A (fr) 1955-06-09
DE1049674B (fr)
NL86808C (fr)

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