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US2158563A - Presser foot for sewing machines - Google Patents

Presser foot for sewing machines Download PDF

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Publication number
US2158563A
US2158563A US102499A US10240036A US2158563A US 2158563 A US2158563 A US 2158563A US 102499 A US102499 A US 102499A US 10240036 A US10240036 A US 10240036A US 2158563 A US2158563 A US 2158563A
Authority
US
United States
Prior art keywords
presser foot
fabric
sewing machines
portions
presser
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
Application number
US102499A
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English (en)
Inventor
Hacklander Hans
Vesconte Harold J Le
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.)
Union Special Machine Co
Original Assignee
Union Special Machine Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Union Special Machine Co filed Critical Union Special Machine Co
Priority to US102499A priority Critical patent/US2158563A/en
Priority to DEU13679D priority patent/DE665049C/de
Priority to GB6522/37A priority patent/GB491721A/en
Application granted granted Critical
Publication of US2158563A publication Critical patent/US2158563A/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
    • D05B29/00—Pressers; Presser feet
    • D05B29/06—Presser feet

Definitions

  • This invention relates to presser feet for sewi'ng machines; and it has more particular referenceto .presser .feet useful in ;connection with sewing 'machines of :the .type featured in a copending-application Serial No..101,588, filed by us concurrentlyherewith, and designed .to form coveredsleamsafter themethod disclosed in another co-pending :application Serial No. 1,885 filed ,by Norman VuChristensen on January 15, 19.35.
  • The.aim of .our invention is to provide a simple and reliable presser .foot with means capable, as the fabric is advanced in the machine, of trimmingtheabuttededges and folding over the edges laterally as aforesaid, and .of holding .the fold down for presentation-to the stitching instrumentalities of the machine.
  • Fig. II is a view looking as .indicated by the arrows II-.II in Fig. I.
  • Fig. lII isia plan sectional View taken as indi- -cat'ed:by the arrows I IL-II-I in Fig. I.
  • Fig. IV is aninverted plan view looking as indicated 'by the arrows IV- IV in Fig.1.
  • I 'Fig. V is a fragmentary top plan View of the presser foot with certain of its appendages removed.
  • Fig. VII is a fragmentary elevation of the presser foot corresponding to Fig. I.
  • Figs. VIII, IX and X are views like Fig. VII showing the action of the presser foot incident to passage therebeneath of a cross seam in the fabric.
  • Fig. XI is a cross sectional view takenas indicated bythe arrows XI-XI in V.
  • Fig. .XII is a View corresponding to XI showingthe fabric after the trimming of its upstanding abutting edges.
  • Figs. XIIIandZXIV arecross sectional views of the'presser foot taken as indicated respectively by the arrowsXIIL-XIII and XIV-XIV in Fig. V.
  • Fig. .XV isa View like Fig. XIII showing the action of thepresserjfoot incident to passage therebeneath of different fabric thicknesses at opposite sides of the abutted margins.
  • Fig. XVI isaplanview of a supplemental presser plate forming part of the presser foot, together with the-seaming needles.
  • Figs. XVII andXVIII are cross sections through the same formed with the needles arranged as in Fig. XVI.
  • Figs. XIX, XX and XXI are views .corresponding to Figs. XVI, XVII and XVIII showing an alternative arrangement of the needles, and the seam resulting therefrom;
  • the :numeral l comprehensively designates the .presser foot ofour invention, the same being longitudinally divided, with provision, between ,flat sole portions .Zand 3, of a slot 1 for passage of the abutted-upstanding margins M, lVIof fabric F (Figs. IIIand XI-XIII) progressed forwardly along the work arm f the machine by the feed '40 ,dogs indicated at 6 and lip Fig. I.
  • .Eulcrumed to swing about a transverse pin i2 within the hollow of the work supporting arm 5 at the frontendof the latter-,isanarm is which carries .a group of laterally-spaced seaming nee- .dles including a center needle i i and a pair of transversely aligned flanking outer needles it, Hi.
  • the flanking needles iii and it are placed ahead of the center needle Hi .in the direction :of feeding, which, in this instance,.is outwardofthe arm 5 as indicated by ,an arrow in Fig. I.
  • the needle carrying arm i3 is adapted to be oscillated about its fulcrum [2 by a.reciprocated'horizontal link il' so that the needles l4-l6 pass through the fabric from .be-
  • the presser foot I has an arched shank 2
  • the presser bar 23 is yieldingly urged downward to maintain the presser foot I in contact with the fabric on the work arm 5, and is restrained against rotation by coaction of a clevised lateral projection 21 of the shank 2
  • the sole portions 2, 3 of the latter are fitted with conformative shoes 29 and 30 fashioned from flexible sheet metal, having flat bottoms and upwardly turned toe ends rounded as at 3!, 32 to conform with the upwardly curved toe ends of said sole portions and formed with inward lap projections 33, 34. From Figs. III, IV and VI it will be observed that the projections 33, 34 have longitudinal notches 35, 36 which engage with studs 31, 38 upstanding from the toe ends of the sole portions 2 and 3.
  • the upturned heel ends 39, 40 of the shoes are formed with inwardly directed lugs 4
  • the flat bottoms of the shoes 28 and 30 are respectively formed with pressed-out longitudinal spring tongues 45 and 46 which reach upward and engage the shoulders of transverse recesses 47 and 48 in the bottoms of the sole portions 2 and 3.
  • the spring tongues 45, 46 are wholly accommodated within the recesses 41, 48 with the flat bottoms of the shoes 29, 30 contacting with the bottoms of the soles 2 and 3.
  • the inner edge of the toe end of the portion 3 of the presser foot is beveled as at 49, the angle of the bevel gradually approaching the horizontal and said bevel flaring in the direction of feed as at 49a and terminating in a point 50.
  • having the form of a bar with a bevel 52 complementary to the bevel 49, and a lateral shank 53 slidingly engaging in a transverse guideway 54 of the portion 2 of the presser foot.
  • a leaf spring 55 urges the folding member inward yieldingly to turn over the upstanding abutted margins M, M of the fabric F laterally as shown in Figs. XI, XII and XIII flat in superimposition upon said fabric.
  • the blade 56 has dovetailed engagement with a transverse slot 58 in the portion 3 of the presser foot in line with the shank 53 of the folding element 5
  • the trimming blade 5! is adjustably set in the downturned end of an arm 6
  • the blade 51 is flexible and curved concentrically with the axis of the sleeve 25 as shown in Fig. III,
  • the cutting edges 63 and 64 of the trimming blades 56 and 51 are maintained in exact cutting alignment vertically.
  • the blade 51 is swung back and forth crosswise of the line! of feed, and, by cooperation with the fixed blade progressively trims the upturned edges M, M of the fabric F in a manner which will be readily apparent from Fig. III.
  • the cutting edge 63 of the fixed blade 56 slightly overhangs the slot 4 through the presser foot.
  • a supplemental presser plate 65 which is provided with an aperture 66 for passage of the needles I4--
  • has its ends curved to engage over the cross pin 61.
  • the function of the supplemental presser plate 65 is to hold down the fabric margins M, M after they have been trimmed and turned over for presentation to the needles I l-I6 as shown in Fig. )HV, with the fold N guided by a recess 12 in the bottom of said plate.
  • the aperture 66 in the supplemental presser plate 65 it will be noted from Figs. IIIVI and XVI has forwardly open longitudinal notches l4, l5 and I6 in the line of the needles I4, [5 and 46 with provision of a central tongue 11 over which the looper loops are laid, said tongue being rounded downwardly at its end to facilitate the release of said loops as the fabric advances.
  • the shoes 29 and 30 function as shown in Figs. VIIIX, that is to say, they yield to sinuous upward deflection as the cross seam or other irregularity travels beneath them.
  • Such action of the shoes 29 and 3G is possible by virtue of the fact that they fit loosely over the sole portions 2 and 3 of the presser foot and are therefore able to move up and down under the influence of their spring tongues 45 and 46 and to expand or contract lengthwise slightly as required, their detachment from the foot being prevented through coaction of the longitudinal notches 35, 36 at their toe ends with the retaining studs 37, 38, and through coaction of the lugs 4 I, 42 at their heel ends within the keeper recesses 43 and 44 of said presser foot.
  • the central needle 14 By placing the central needle 14 in advance of the outer or flanking needles t5 and It after the manner of Fig. XIX, the loop L of a central needle loop S, formed as in Fig. XX during one stitching cycle, is covered :by the crosswise looper loop L of apair of outer needle loops S ,”S formed duringithesucceeding stitching cycle as in Fig. XXI.
  • the supplemental presser plate .55 '(Fig. XIX) is provided with a separate aperture 66a for passage of the central needle 1'4.
  • Fig. XXII By arranging all three needles it, 15 and t6 "abreast as in Fig. XXII and employing a single looper to cooperate with them, the needle loops S, S and S are concurrently connected crosswise during each stitching cycle after the manner shown in Fig. XXIII.
  • Thesupplemental presser plate '65 of Fig. XXII is like that of Fig. XVI except for lengthening'of the notch M for the central needle I4.
  • the spring tongues 45 and 46 may be separately made and attached; or again; coiled springs may be substituted and accommodated within suitable recesses in the bottoms of the sole portions 2 and 301 the presser foot.
  • a presser foot for sewing machines embodying means for laterally folding over upstanding abutted margins of juxtaposed advancing fabric portions both in the same direction fiat into superimposition upon each other and upon one of the fabric portions; and independently yielding means centrally of the presser foot to hold down the fold for stitching.
  • A'presser foot for sewing-machines embodying means for laterally folding over upstanding abutting margins of juxtaposed advancing fabric portions both in the same direction flat into superimposition upon each other and upon one of the fabric portions; means for trimming the edges of said margins before folding, and independently yielding means centrally of the presser foot to hold down the fold for stitching.
  • a presser foot for sewing machines having a longitudinal slot open at the toe end to receive upstanding abutted margins of advancing fabric
  • a laterally'yielding member with an inclined surface progressively-decreasing in angularity toward the horizontal and cooperating with a complementally-configured surface along one edge of the slot to fold over the abutted margins flat into superimposition upon the fabric; and independently yielding means to hold down the fold for stitching.
  • a presser foot for sewing machines having a longitudinal slot open at the toe end to receive upstanding abutted margins of advancing fabric
  • a presser foot for sewing machines having'a longitudinal slot open at the toe end to receive upstanding abutted margins of juxtaposed advancing fabric portions; means for laterally folding over the margins both in the same direction flat into superimposition upon each other and upon one of the fabric portions incident to ad- Vance in the slot; and independently yielding means centrally of the presser foot to hold down the fold for stitching.
  • Alpresser foot for sewing machines embodying means for laterally folding over upstanding abutted margins of juxtaposed advancing fabric portions both in the same direction flat into superimposition upon each other and upon one of the fabric portions; and an independently-yielding supplemental presser plate centrally of the presser foot to hold down the fold for stitching, said plate having an opening for a stitching needle adapted to pass through all three fabric thicknesses of the fold.
  • a presser foot for sewing machines embodying means for laterally folding over upstanding abutted margins of juxtaposed advancing fabric portions both in the same direction flat into superimposition upon each other and upon one of the fabric portions; and an independently yielding supplemental presser plate centrally of the presser foot to hold down the fold for stitching, said plate having an aperture for a group of laterally-spaced needles including a central needle to pass through all three fabric thicknesses at the fold, and a pair of outer needles to pass through the fabric respectively at opposite sides of the fold.
  • a presser foot for sewing machines embodying means for laterally folding over upstanding abutted margins of advancing fabric flat into superimposition upon the fabric; and an inde pendently yielding supplemental presser plate to hold down the fold for stitching, said plate having an aperture with longitudinal notches open forwardly in the direction of feed respectively for a central needle to pass through all three fabric thicknessesat the fold, and a pair of outer needles offset in the line of feed to penetrate the fabric respectively at opposite sides of the fold.
  • a presser foot for sewing machines embodying means for laterally folding over upstanding abutted margins of advancing fabric fiat into superimposition upon the fabric; and an independently yielding supplemental presser plate to hold down the fold for stitching.
  • said plate having an aperture with longitudinal notches forwardly open in the direction of feed for a group of transversely aligned needles, including a central needle to penetrate all three fabric thicknesses at the fold, and a pair of outer needles to penetrate the fabric at opposite sides of the fold.
  • a presser foot for sewing machines embodying means for laterally folding over upstanding abutted margins of juxtaposed advancing fabric portions both in the same direction flat into superimposition upon one of the fabric portions;
  • a presser foot for sewing machines comprising a sole portion; and an associated fabricengaging shoe capable of independent vertical movement bodily, said shoe having its opposite ends loosely engaging over the corresponding ends of the presser foot; and spring means integrally-formed with the shoe and tending to urge it downward of the presser foot.
  • a presser foot for sewing machines comprising a sole portion; and an associated fabricengaging shoe capable of independent vertical movement bodily, said shoe being fashioned from flexible sheet metal with its opposite ends turned upward and toward each other to loosely engage over the ends of the presser foot, and having upwardly punched-out spring tongues at intervals longitudinally thereof to react against the bottom of the sole portion.
  • a presser foot for sewing machines comprising a sole portion; and an associated fabricengaging shoe capable of independent vertical movement bodily, said shoe being fashioned from flexible metal with its opposite ends turned upward and toward each other to loosely engage over the ends of the presser foot, and having upwardly punched-out spring tongues at intervals longitudinally thereof engaging shoulders of transverse receiving recesses in the bottom of the sole portion.
  • a presser foot for sewing machines comprising a sole portion; an associated fabric-engaging shoe capable of independent vertical movement bodily with its ends turned upward and toward each other to engage loosely over the ends of the presser foot, the inwardly-turned portion at the toe end of the shoe being longitudinally notched to engage a retaining stud upstanding from the toe end of the presser foot, and the inwardly turned portion at the heel end engaging a retaining notch at the top of the presser foot heel; and spring means tending to urge the shoe downward of the presser foot.
  • a presser foot for sewing machines comprising a sole portion; and an associated shoe capable of independent vertical movement bodily, said shoe being fashioned from flexible metal with its ends turned upward and toward each other to engage loosely over the ends of the presser foot, the inwardly-directed terminal portion at the toe end of the shoe having a longitudinal notch engaging a retaining stud upstanding from the toe end of the presser foot, and the inwardly-turned terminal portion at the heel end engaging a retaining notch in the top of the presser foot heel, and said shoe formed with punched out upward spring tongues at intervals longitudinally thereof to react against the bottom of the presser foot.
  • a presser foot for sewing machines comprising sole portions at opposite sides of a longitudinal slot to receive upstanding abutted margins of advancing fabric; and respectively associated shoes capable of independent vertical movement bodily and having their ends loosely engaging over the corresponding ends of the soles of the presser foot; and spring means tending to urge the shoes downward of said sole portions.
  • a presser foot for sewing machines comprising sole portions at opposite sides of a 1ongitudinal slot to receive upstanding abutted margins of advancing fabric; and respectively associated fabric engaging shoes capable of independent vertical movement bodily, said shoes being fashioned from flexible metal with their ends turned upward and toward each other to loosely engage over the corresponding ends of the sole portions of the presser foot, and having spring tongues upwardly offset at intervals lengthwise thereof to react against the bottoms of said sole portions.
  • a presser foot for sewing machines comprising sole portions at opposite sides of a longitudinal slot to receive upstanding abutted margins of advancing fabric; respectively associated fabric-engaging shoes capable of independent vertical movement bodily, said shoes being fashioned from flexible metal with their ends turned upward and toward each other to engage loosely over the corresponding ends of the presser foot, the inwardly-turned terminal portions at the toe ends of said shoes being longitudinally notched to engage retaining studs upstanding from the tops of the shoes of the sole portions, and the inwardly-turned terminal portions at the heel ends engaging retaining recesses in the tops of the heel of the sole portions; and spring means tending to urge the shoes downward of said sole portions.
  • a presser foot for sewing machines comprising sole portions at opposite sides of a longitudinal slot to receive upstanding abutted margins of advancing fabric; and respectively associated fabric-engaging shoes capable of independent vertical movement bodily, said shoes being fashioned from flexible metal with their ends turned upward and inward toward each other to engage loosely over the corresponding ends of the presser foot, the inward terminal portions at the toe ends of said shoes being 1ongitudinally notched to engage retaining studs upstanding from the tops of the shoes of the sole portions, and the inward terminal portions at the heel ends engaging retaining recesses in the tops of the heels of the sole portions, and said shoes having upwardly punched-out spring tongues at intervals longitudinally thereof to react against the bottoms of said sole portions.
  • a presser foot for sewing machines comprising sole portions at opposite sides of a longitudinal slot to receive upstanding abutted margins of advancing fabric; and respectively associated fabric-engaging shoes capable of independent vertical movement bodily, said shoes being fashioned from flexible metal with their ends turned upward and toward each other to engage loosely over the corresponding ends of the presser foot, the inward terminal portions at the toe ends of said shoes being longitudinally notched to engage retaining studs upstanding from the tops of the toes of the sole portions, and the inwardly turned terminal portions at the heel ends engaging retaining recesses in the tops of the heels of the sole portions, and said shoes having upwardly punched-out spring tongues at intervals longitudinally thereof with their ends engaging the shoulders of transverse recesses in the bottoms of said sole portions.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US102499A 1936-09-19 1936-09-19 Presser foot for sewing machines Expired - Lifetime US2158563A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US102499A US2158563A (en) 1936-09-19 1936-09-19 Presser foot for sewing machines
DEU13679D DE665049C (de) 1936-09-19 1937-01-01 Stoffdrueckerfuss mit laengs gerichteter Leitnut fuer Naehmaschinen
GB6522/37A GB491721A (en) 1936-09-19 1937-03-05 Improvements in or relating to presser feet for sewing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US102499A US2158563A (en) 1936-09-19 1936-09-19 Presser foot for sewing machines

Publications (1)

Publication Number Publication Date
US2158563A true US2158563A (en) 1939-05-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
US102499A Expired - Lifetime US2158563A (en) 1936-09-19 1936-09-19 Presser foot for sewing machines

Country Status (3)

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US (1) US2158563A (de)
DE (1) DE665049C (de)
GB (1) GB491721A (de)

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Publication number Publication date
GB491721A (en) 1938-09-05
DE665049C (de) 1938-09-16

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