US2973734A - Presser foot for decorative stitching for sewing machines - Google Patents

Description

March 7, 1961 E. SCHENKENGEL 2,973,734

PRESSER FOOT FOR DECORATIVE STITCHING FOR SEWING MACHINES Filed July 10, 1958 IN VEN TOR. flit RICH J'C'fiEA/kE/VQ-fi United States PRESSER roor FOR DECORATIVE STITCHING FOR SEWING MACHINES Emericll 'Schenkengel, Kaiserslautern, Pfalz, Germany, assignor to G. M. Pfalf A.-G.,. Kaiser-slautern, Pfalz, Germany Filed July 10, 1958, Ser. No. 747,755

Claims priority, application Germany July 16, 1957 3 Claims. (Cl. 112-435) length of the sole adapted to guide cords, ribbons or the.

like fed into the entrance end of the foot during the entire sewing operation. The grooved portion in the sole which follows the stitching aperture in the foot provides for guidance of the sewed parts and prevents primarily that the material being sewn is pressed together too much or is drawn by the needle through the stitching aperture.

It is an object of the invention to provide a presser foot which is adapted for sewing cords as well as ribbons or bands to a base of material or cord to a ribbon or band while the cord as well as the ribbon or band is correctly guided and the raising of the material and of the foot is avoided.

that cords and ribbons can be sewed Von simultanously and it is possible by way of the slots at the entrance end of the foot to feed in several cords in parallel alignment into one groove.

It is another object of the invention to avoid raising of the material through the stitching aperture.

In accordance with the invention the separating Wall between the grooves is extended into the stitching aperture at both ends thereof. This measure also affords the advantage of correspondingly decreasing the interruption in the separating wall of the grooves, thereby obtaining improved guidance.

Further objects and advantages of the invention will become apparent from the following specification with reference to the accompanying drawings illustrating one embodiment and in which:

Fig. 1 is a perspective view of the presser foot for decorative stitches secured to the presser bar;

Fig. 2 is a bottom view of the presser bar, and

Fig. 3 is a partial sectional view taken along line Ill-III in Fig. 2.

The presser foot 1 has a shaft portion 2 which is secured in a-known manner to the presser bar. Two

grooves 3 and 4 of different widths are provided in the ice grooves and extensions 8, 8a of the separating wall extend from both ends into the stitching aperture 7 which by virtue of its width is capable. to accommodate the wide stitches of a zig-zag sewing machine. The slots 61are preceded ahead of the entrance end by a prong 9 whichis secured. to a toe 10 which prong extends transversely'of or perpendicularly to the direction. of sewing. This prong serves for guiding the cords into the slots 6 and thence into grooves 3 and 4, and it will be noted that at least two slots 6 serve to feed cord into groove 4. A further prong 11, extending parallel to the prong 9 cooperates therewith to constitute a guide. for ribbons in a manner that both ribbons and cords can be simultaneously sewed with the new presser foot in accordance with theinven} tion. Thus, by the use. of the spaced prongs 9. and 11 one or more cords may be fed into the grooves 3. and 4 from above by way of prong 9 and slots 6 and a ribbonmay be fed below the cord or cords between prongs 9 and 11 and the cords alone or cords and ribbon can thus. be sewn onto a base material disposed below the presser foot in the normal manner. It is, of course, also possible to sew cords onto an underlying ribbon alone without there being any other material below the presser foot. Accordingly, prongs 9 and 11 may cooperate to feed ribbon onto a base material while prong 9 alone can serve to feed the ribbon into the slots 6. Where two slots 6 precede a wide groove such as groove 4, the slots prevent tangling of a plurality of cords in the groove.

It should be noted with particular reference to Fig. 3 that the prongs 9 and 11, but especially prong 9, should extend with their upper edges slightly above the upper surface of the presser foot. In this manner any cords being fed into grooves 3 and 4 are safely guided into the slots 6 which precede the grooves, thus keeping the cords apart toprevent tangling. Moreover, sufficient space is left below the prongs to permit introducing material onto which patterns with cords have already been sewn, and which are to be provided with additional ornamentation, especially of the type including cording.

A guide slot 12 is provided laterally of the presser foot to facilitate the introduction of the upper thread.

It is obvious that other embodiments of the invention are readily possible without departing from the spirit of the invention, such as a presser foot having a different number of grooves or a different number of slots and applicant does not desire to be limited to the embodiment illustrated but what it is desired to protect by Letters Patent is set forth in the appended claims.

Iclaim:

l. Presser foot for sewing machines, primarily for decorative stitching comprising a shank portion and a foot portion extending in the direction of sewing, said foot portion having a sole and an upper surface and a wide stitching aperture defined generally centrally of said foot portion, said foot portion having a rear portion adjacent said shank portion and a material entrance portion opposite said rear portion and said sole presenting at least one longitudinally extending groove, said foot presenting a plurality of feeding slots atjsaid entrance portion including more than one slot preceding said at least one groove in material feed relation, a toe extending forwardly of said entrance portion, a plurality of spaced prongs supported by said toe extending transversely of the direction of said at least one groove and perpendicularly to the direction of sewing and projecting with their upper edge above the upper surface of said foot, one of said prongs being arranged for simultaneously guiding to said slots and into said at least one groove a different cording material or the like and the other said prong being adapted'to cooperate with said one prong to feed ribbon below the cording material.

Y 2. Presser foot for sewing machines, primarily for decorative stitching comprising a shank portion and a foot portion extending in the direction of sewing, said foot portion having a sole and anupper surface and a Wide stitching aperture defined generally centrally of said foot portion, said foot having a rear portion adjacent said :shank portion and a material entrance portion opposite :said rear portion, said sole presenting a plurality of lonfgitudinally extending grooves, said foot presenting a pluirality of feeding slots at said entrance portion including at least two slots preceding at least one said groove in material feed relation, and a toe extending forwardly .of said entrance portion, a plurality of spaced prongs supported by said toe extending transversely of the direcstion of said grooves and projecting with their upper edge above the upper surface. of said foot, an interrupted wall separating said grooves and having portions extending into said stitching aperture at opposite ends thereof, one 0f said prongs being arranged for simultaneously guiding to said slots and into said grooves a ditferent cording material or the like and the other said prong being adapted :to cooperate with said one prong to feed ribbon below jthe cording material.

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3. A presser foot for sewing machines comprising a shank portion and a foot portion extending in the direction of sewing, said foot portion having a sole and a wide stitching aperture defined generally centrally of said foot portion, said foot having a rear portion adjacent said shank portion and a material entrance portion opposite said rear portion, said sole presenting a plurality of longitudinally extending grooves, at least a pair of slots in feed relation to one of said grooves proximate said entrance portion, a toe extending forwardly of said entrance portion, a plurality of spaced prongs supported by said toe and extending transversely of the direction of said grooves, the upper edge of at least one of said prongs extending above the upper surface of said toe and being adapted for guiding difierent cording material to said slots and into said grooves.

References Cited in the tile of this patent UNITED STATES PATENTS 146,736 Wilson Jan. 20, 1874 1 1,827,596 Maier Oct. 13, 1931 1,916,171 Karle June 27, 1933 2,770,206 Baehr Nov; 13, 1956

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