DE1958005U - WARPING MACHINE NEEDLE. - Google Patents

Description

The invention relates to a linking machine needle for "use on linking machines in which the ladel duroh a chain stitch seam of two or more overlapping pieces of fabric or
Sewing stitches together.; - ._. ■ "-

The invention is based on the task of an improved linking machine needle to accomplish.

The known needles for linking have a gradually tapering point and are, in this respect, the DIN needles
2326 similar. Such eye needles are limited in use to relatively thin yarns. -. '.. "

In'-the knitter-egg-round. Knitting, however, needles are already

winding knitting using relatively allow thicker yarns. Two types in particular have become known here, namely the press needle and the latch needle. "Both needles are characterized by an open hook at the free end Push forward the store and then pull it on the way back as a loop and a new mask through the old mesh hanging on the rebuke through. When pulling through the old mesh, the hook mouth, be closed. This is done with the press needle in that the hook of the press rail or the press wheel is used Machine is printed on the needle shaft, whereby the tip is placed in a specially designed slot. With the latch needle the hook mouth is closed and opened by means of a tongue articulated on the needle shaft during stitch formation.

Knitting machine needles have also already been used on sewing machines for loop formation using thicker yarns. Press needles are ruled out here, however, because on the one hand they are at greater risk of breakage and on the other hand an additional one Need pressing device. Latch needles were mainly used on sewing machines with knitting needles.

With latch needles it is now common to form the hook by bending the free, pointed end of the needle by 180 ° as can be seen, for example, from German patent specification 93 647 or French patent specification 1 250 008 is. As a result of this training, there is a blunt needle "dei" puncture point. Externally, the hook must inevitably be

protrude beyond the outline of the needle shaft.

The tone of the known needle according to German patent specification 93 647 or French patent specification 1 250 008 differs The registered HäcLel is now according to the invention in that it runs into an elongated point common with chain needles and that the point is preceded by a hooked mouth with tongue, which is common in latch needles, and that the hook has an undercut - Ultimately, the registered linking machine needle is a combination of the in the case of linking machines, the elongated tip with the Knitting machine latch needles are the usual hooks with a tongue, but not by bending the tip, but by a recess in the needle point is formed.

Characterized in the fact that in the linking machine needle according to the invention the one that previously protruded from the outline of the jacket of the ladle shaft Hook has come into place and because of the fact that the thread piercing point was designed as an elongated point, the ladel is easy, gentle and unhindered to pierce the goods, namely also in "fine-meshed goods guaranteed, and at the same time the use in high-speed machines is made possible.

The linking machine needle according to the invention has not yet become known, although the use of latch needles in the manner of the known knitting machine latch needles was already recommended in German patent 93/647 from 1897. The professional world is beS ^:! -this ^; "Stand & r Technifc ystay," like the j

French patent specification 1 250 008 from 1960 'shows. The fact that despite the presence of the German patent specification 93 647 for over 50 years and despite being well known "of eye needles a linking machine needle of the type applied for was not found, is an indication that such a chain needle may not have been nearby. Another evidence of this can be seen in the actual development, as it is documented in the French patent specification 1 250 008 and which practically still uses the same latch needle that was recommended half a century ago. Apparently The Pachwelt saw no other way to form the hook in latch needles than the extended point 180 around the To bend the needle shaft. For many decades she had got used to this kind of hooking and she saw no way to get off this path. But that way it was completely impossible to form the puncture point as an elongated tip. Also it was then impossible to get the hook within the outline to let the rest of the Hadelschaftes run.

The invention is explained below with reference to the drawing. Included demonstrate;

- Pig. 1 a needle in side view,

Pig «2 the piece of material used to form the rebuke,

Pig. 3 the initial processing state of the piece of material, -

-.- / Pig. 4 one opposite · Pig. 3 advanced Be -... ■ - -. -.- ■ "■ ---. ArbeitsurEgs-zurs'tand,""^:"".

Pig »5 the almost finished Uadel.

The KettelmascMnennadel has a round shaft 1 and a End part la, via which it is detachable on the working head of a linking machine is attachable. On the side opposite the clamping side, the pen has part 1b, which is essentially runs out to a point. The taper is used to easily pierce and pierce the pieces of fabric or stitches that are sewn together should be. The ladel also has the usual Knitting machine latch needles provided means for thread pick-up and to form loops for pulling through another Mesh on. In the shaft there is namely a recess 1c, which is located behind the tapered part 1b. further is a Tongue 1d present.

The recess 1c cuts underneath with its concave piece 1 ο das tapered part 1b. Subsequent to the recess 1c, a Fut 1f is incorporated into the shaft, in which the tongue 1d by means of of the bearing pin 1g is mounted so as to be tiltable. The courage 1f can be curved and long enough to allow pivoting of the tongue between an open position indicated by full lines and one indicated by dashed lines To enable closed position. In the open position, the Tongue from bearing pin Ig along the needle shaft, releasing it the opening of the recess 1c. In the closed position, the tongue forms a bridge over the recess 1c by moving away from the bearing pin: 1 g Ms to the-tapered part Ib-extends, - - =

The tapered ladel piece 1b enables easy piercing of the fabric parts of the stitches. In all other respects, the Needle in the same. Way "to be operated like a knitting machine needle. -

When the ladel sticks into the goods, the tongue becomes 1d opened by the old chain loop. She not only gets behind this old chain loop, but also behind it Were. In this position, the yarn is from the recess 1c accepted. When the needle is withdrawn, the tongue is placed over the recess 1c, as a result of which the thread is retained in the recess 1g will. When the needle is withdrawn further, the thread pulls a new needle loop through the goods and through the old Eettenschleung on the loading bay, namely until a point is reached where the old chain loop from the ladel over the newly formed needle loop is grazed, ending the duty cycle.

To make the ladel is made from a piece of a square bar according to Pig. 2 assumed. At one end, the shaft, which is circular in cross-section, has the curvilinear shape as can be seen from Mg. 3. This end is intended to form the tapered loading area. After this Machining is the recess 1c, which undercuts the tapered end 1b, according to Pig. 4 incorporated. Eventually the curved, lut Tf worked into the needle shaft, and on it the tongue 1d is pivotable by means of the bearing pin 1d. - stored in the groove, - - ■ ->.

Claims (1)

Claim to protection Linking machine needle with shaft for clamping to the
Linking machine, characterized in that the linking machine needle ends in an elongated point (Tb) customary for warp needles and that the point (1b) is preceded by a hook mouth (1c) with tongue (1d), which is usual for latch needles, and that the hook is through an undercut (1e ) the needle tip (1b) is formed.