DE1485230B1 - Latch needle for linking machines - Google Patents

Description

The latch needle 1 has a piston 2, the _T \. " J ^ ₇ '.» _c,,,, .

in the example used is designed as a round bottom flask. £? & £ ISZ ™ ^Schwenkachi * * »

The piston is used to releasably clamp the P ·> ·

Needle on the needle bar of a linking machine. The needle can be left-handed or right-handed; H., the piston 2 closes a one-sided flattened 50 the tongue can after one or the other of the

Intermediate piece 3, which forms the needle shaft and needle sides point to the direction of rotation of the

is slightly curved. The needle shaft then goes into the fountain needle ring to adapt,

the front end 4 across. The front end 4 ver _p ,

youngt at 5 in a long drawn out point 6. raentansprucü:

In front of the taper are a slot 7 and a short latch needle for linking machines, through it

Tongue9 arranged. The slot 7 extends characterized in that the opening position of the

inside the needle from top to bottom and facing tongue at an angle of about 35 °

acts the formation of a hook 8. The tongue 9 is limited to the longitudinal axis of the needle shaft.

1 sheet of drawings

Claims (1)

1 2 The invention relates to a latch needle pivotable so that it is in and out of contact for linking machines. Such a needle goes on the hook 8 can be brought, whereby the one end is opened or closed in a piston for clamping at the slot 7. The tongue 9 Linking machine over and running. At the other end in is arranged in a lateral plane of the needle, an elongated tip. The through the tongue 5 which is placed at right angles to one through the slot 7 lockable hook mouth lies within the um- level. cracks of the needle shaft. The tongue 9 has a spoon-shaped end 9 a in the hook mouth, the thread is inserted and when the needle falls it can lay over the tip 8 a of the hook 8, as a loop through the one on the fountain needle. passing through the loop of the warp goods, where the one hangs on a fountain needle, when it closes when the linkage comes to rest the tongue in the closed position, it decreases compared to a represents. 'r.ihzT common latch needles a larger needle When the tongue is moved out of the opening, so that neighboring stitches are injured in the closed position, the tongue comes to rest against which the needle is tied back when the needle is withdrawn, like looped goods. When using conventional latch needles, 15 from FIG. 5 it can be seen where the usual fonts in which the tongue has a needles in the open position are indicated at 10.
Angle of not more than 20 ° with the longitudinal axis of the If the tongue 9 forms in its full opening needle, there is therefore a decrease in the needle position, which is shown in FIG. 6 is shown, it has a risk of sticking the tongue into the chain inclination of about 35 ° with respect to the longitudinal axis of the well. 20 needle. In addition, it has been shortened so far that you The invention is based on the technical problem of protruding as much as possible with respect to the outline of the needle reason, a latch needle of the specified type so this tendency is relatively low. train that a sticking of the tongue in the When closing the tongue 9 acts with the Goods are avoided when the needle drops. Kettelgut F together (Fig. 7). Because the tongue is short According to the invention, this object is thereby kept 35 and from the mentioned angle of about solved that the opening position of the tongue on a 35 ° out the closing movement begins, so that it Angle of about 35 ° with respect to the longitudinal axis of the item on the chain, an angle of about Needle shaft is limited. 55 °, it swings away from the goods without The invention is to be violated below with reference to the drawing, as shown in FIG. tion explained, which is an exemplary embodiment. vividly. Fi g. 9 shows the same starting position as FIG. 6 on one Fig. 1 a latch needle according to the invention, look needle with a tongue of usual length and arrangement figuratively, ning. In this case, the tongue 9 forms in the opening 2 shows a plan view of the needle, at an angle of approximately 20 ° with the longitudinal axis 3 shows the view of the needle from one outer 35 of the needle and from 70 ° with the chain material, see, as a result, the tongue may when retracting 4 shows the view of the needle penetrating from the other of the needle into the warp material, like this Outside, from FIG. 10 it can be seen, which corresponds to that in FIG. 11 Fig. 5 is an illustration from which the operation results shown result, according to which the tongue 9 of the needle in a linking machine can be seen, 40 the item being linked is prevented from closing. FIGS. 6 to 8 show instantaneous positions of the tongue in a specific exemplary embodiment different working positions of the needle, the most important needle dimensions: