DE2037718A1 - Fabric edge bending element for close feet - Google Patents

Description

. O. Dittmann K. L. Schiff Dr. A. ν. F. green dip !. Ing.P. Strsh!

Patent lawyers » _ΟΚ « Munich 90, Mariahilf platz 2 * 3, Tetafcn 454040 ÜA-3957

shout J b ₁ U η fl

to the
Patent application

of the company

Spa. VIRGINIO RIMOLDI & C. Milano, Via Vespri Sicilian! 9 Italy

concerning

Fabric edge bending element for sewing tips (Priority: July 29, 1969, Italy, No. 20219 / A / 69)

The present invention relates to an element on presser feet to bend a fabric edge that has already ended at its outermost edge, so that the edge in one sewn in a single operation on an underlying edge and the latter at the same time leveled at its outermost edge will.

Such a sewing seam is particularly suitable for side seams in trousers. It is well known that with such rare seams the outermost ends of the two fabric edges to be sewn are flattened and sewn together parallel to them.

109800 / 'UH

To this day, threading and sewing are done in two separate ways Operations using at least two different types of sewing machines.

The aim of the invention is to eliminate one of the Einendel operations, for example, with the operation of sewing together and thereby the trousers side seam is obtained in two successive operations.

To achieve this goal, there is the technical one to be solved The task is to sew one of the two fabric edges to be sewn together, which has already been finished or which is originally a web kantö to bend up to avoid having to use the needle to join the other edge or the needle to sew the two together Edges bothers you.

To solve this technical problem, a small sleeve of the type mentioned is used, with a guide channel running in the longitudinal direction between the hole through which the needle leads to sewing together and the opening through which the needle in the machine leads to the seaming « The longitudinal guide channel is used to receive and bend the outermost end of the upper fabric edge, guiding this fabric edge between the sewing machine needles and keeping it at a distance from the outermost end of the lower fabric edge, which can consequently be leveled by the correct needle while the left needle executes a seam connecting the two edges.

The Hauptvörteil of the invention is i®r Tatsaelte ^ that check Hosenselten- or other seams property by using the Ia Eeö © NähftiSchens with a gewötsaiie & ea ZwoiasAol-NShiiiaseil & ine exports l & SEN _t of the © "a © 2" SguasaaosaBhea and dio other © for Uaelwaen serves®. Sin

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Possibility of working on the fabric edge that is bent upwards at the same time sewing on a lining, especially the simple knee lining, since the lining is usually made of slippery material or knee lining can be attached to the above-mentioned fabric card in a previous operation and thereby did not form an obstacle during the subsequent sewing processes

Further properties and advantages of the presser foot in question result from the following detailed description of a preferred exemplary embodiment on the basis of FIG Drawings; in it 2 algae

Fig. 1 an inventive foot-foot together with other components of a sewing machine

_{FIG. 0} 2 the sewing pouch according to FIG. 1 in a section along the line XI-II5 and

Figo ') a workpiece te H ₁ as it is obtained when using a small foot according to the invention »

The invented presser foot bending element 1 is known in the art Way / attached in the usual push rod 2 of the sewing machine and is located under the well-known needle bar 3 on which a

Needle age 4 equipped with needles 5 t-ind 6 is mounted. fl

Used in conjunction with some sewing elements not shown the needle 5 aa, the one underneath, two overlapping one another Sew staff edges 9 and 10 comprehensive workpiece 8 together.

The Itedel 6 is also not used in conjunction with others shown sewing elements d & closed, on the outermost side only the At the bottom of the fabric edge 10, make an edging seam.

The sewing toe crimping element 1 comprises a sole 12 and a Fork 13 for attachment to the push rod 2.

109809 / uu

Hit the needles 5 and 6 in alignment, the sole 12 has a slightly elongated hole 14 through which the left needle 5 passes with each sewing stitch, and an opening 19 which the right needle happens with every acidification stitch *

The opening 15 is at the back of a small additional sole 16 and bounded at the front by a tongue 17, which contributes to the production of the above-mentioned edging seam in known catfish "

The said seams are partly on a similar tongue the usual needle plate, not shown, see below of the VerkstOcks 8, and partially on the tongue 17 the same sole 12 of the presser foot 1 is formed.

Between the hole 14 and the opening 19, the sole 12 has a Guide channel 18, which runs in the longitudinal direction over the entire length of the presser foot 1 and in its upper part a point corresponding to the needle hole 14 and the opening 15 is interrupted, so that the needle holder 4 can move downward in the individual working strokes without it being with the Channel disturbs. As a result of this interruption, the longitudinal guide channel 13 ends at the rear of the sole 12 in a guide element 19, to which the small additional «sole 16 is also connected.

The downwardly open over its entire length a longitudinal channel 18 serves to receive and the extreme end of the upper edge of the fabric 9 to bend upward, to the edge between the right and left -needle 5 _t lead 6 and üb © r the entire To maintain the length of the sole 12 The upper edge 9, which has been leveled at 20 similarly to the Einendelatich 11 at the lower edge, can be provided with a lining, for example a simple knee lining, if necessary, by means of the same edging. 20 is attached to this edge. In front of the presser foot there is a guide 21, which comprises a Qabel 22 adjustably attached to the sewing machine and an essentially vertical plate 23 which is attached to one end of the fork 22 and is aligned with the longitudinal guide cannula 18 in order to

Catch piece of the upper edge 9 to be carried out in the most suitable manner possible and to facilitate the entry of this edge into the actual canal. The plate 23 is specifically aligned with the right side wall 24 of the channel 18 "

The fork 22 has an offset with respect to the plate 23 at the bottom vertical wall 25 and an Oleiteleaent 26, which forms a lower channel »in which only the lower edge 10 slides; this edge is then fed to the usual »not shown» trimming-better »with which the sewing machine is equipped ·

At the beginning of sewing operations, the outermost side becomes the top Fabric edge 9 and that through the Einendel seam 20 if necessary with this connected lining or knee lining inserted in such a way that it first slides along the plate 23 and then enters the longitudinal guide channel 18, its right-hand side. Side wall 24 keeps the edge of the fabric upright and at a distance from the outer edge 10 lying underneath it »which as a result can be dangled from the right needle 6 ·

The left string wall 27 of the same channel 18 on the other hand holds the outer end of the above-mentioned upper edge of the fabric 9 in distance from the left needle 5 "even when the known Secondary looper 28, the old represents the needle 6 together with the Umsäumungsstich works m" in its Upward movement touches the edge 9.

When the presser foot bending officer 1 loads the sewer »so lies the outermost end of the upper fabric edge 9 on the • already wrapped outermost end of the lower fabric edge 10 »with the The upper fabric edge 9 is sewn through the connecting seam 7. The workpiece 12 provided with both single-ended seams 11 and 20 can therefore be ironed on in a subsequent operation so that the outer ends are folded over

Of course, the presser foot bending element 1 can also be used for Manufacture of andaran pieces can be used as hosan, provided that a separate binding is provided for the balden * iuam * # j »unmftenden edges.

109809 / UU BADOWfcWAL

Claims (1)

Expectations (1J Sewing fusing element 212m Sewing together one edge of the fabric ntt another edge of the fabric, which are at the same time outermost side, characterized in that between the hole (14) for the needle (5) for sewing together or for the left seam and the opening (19) for the needle (6) to be "hemmed" or for the right NSh process a length guide channel (18) is provided, which is used to take the outermost side of the upper edge of the fabric (9) and bend it upwards so that this? Edge of fabric between the two needles / guides and at a distance from the outermost side of the lower one Fabric edge (10) is held, which can be elngeendelt as a result of the right needle, while the left needle the the seam (7) connecting both edges. 2 "Element" according to claim 1, characterized in that the length guide channel (18) is via its entire length untea open 1st and part of the sole (12) of the sewing foot (1) blldat. 3. Element according to claim 2, characterized in that the longitudinal guide channel (18) mM® rare wall (74), which holds the upper fabric edge (flawfireelit and distance from the lower fabric edge (10)) is feäo © »list rare wall ( Zf ) has »di · dl« ®1ot © Stofftante (9) while sewing : n distance from #a? Listen lad ·! {5} liiit · 10980P / U14 4. Element according to any one of claims 1 to 3§ thereby marked »that in front of the presser foot (1) a Guide (21) with an essentially vertical, with the length Guide channel (18) aligned plate (23) is arranged, which through the already indented outside of the upper edge (9) the channel (18) leads. 5. Element according to claim 4, characterized in that the guide (21) has a vertical wall (25) which together with a sliding element (26) and a fork (22) forms a channel in which the lower edge (10) is in front the end slides. 108808 / UU Blank page