DE8536352U1 - Hole needle segment for crochet and Raschel machines - Google Patents

Abstract

1. Eye needle segment (1) for crocheting and Raschel machines with : - a carrier member (2) and - a multiplicity of eye needles (4) protruding from a side surface (face 3) of the carrier member (2), which - are provided with a substantially flat-rectangular cross section, - are disposed so that they are equidistant and parallel to each other, - are in each case provided with a free end (5), which is provided with an eye (6) for running through a thread section, - as well as with an attachment end (7), which is held in the carrier member (2), - so that, in the area of the attachment ends (7) of the eye needles, (4) at least one bar-shaped transverse connection member is disposed, which runs substantially at right angles to the longitudinal direction of the needle (12) inside the carrier member (2) over the complete width (11) of the eye needle arrangement, characterised in that the transverse connection member or members (8-10) is or are connected to the attachment ends (7) of the eye needles (4) rigidly so that it, or they cannot be detached.

Description

ti lit) t tt * 4 I ι

Ha-T / 85120

y.Dnb.Hä
Patent attorney "

Ostendstrasse 132

8500 Nuremberg 30

Telephone 0911/573031 ^ 32

Franz Dengler

Owl Path 2 8502 Zirndorf

Hole needle segment for crochet and Raschel machines DESCRIPTION

The invention / innovation relates to a perforated needle segment for Use on crocheting or Raschel machines with the individual features of the preamble of claim 1. Such Hole needle segments essentially consist of a support body connected to a movement-driven part of the machine and a plurality of hole needle lamellae, which consist of a side surface, namely a The end face of the support body protrudes parallel and equidistant.

At their free end, the perforated needles have a hole through which a thread section, which may be elastic, can be passed through provided, with their fastening end, the needles are held in the carrier body.

Since the operation of the crochet or Raschel machine provided with the needle segments, the segments on one Cross members are attached, the an elliptical rotational movement with a relatively high UmI frequency

executes * considerable mechanical forces act on the connection between piercing needles and the carrier body a.

As prior art, it is known to produce a carrier body made of metal, in particular lead, the pinholes in their fastening ends in slot housings ües insert made of lead carrier body and fastened in it. Such punch needle segments, however, disadvantageous in that they only more or less can be produced in a hand-casting process and, due to the lead-based carrier body, a relatively large one Have mass that allows only relatively small machine speeds due to the rotary drive of the carrier body.

Attempts have also been made to insert the needle! Pour in support body made of plastic, but such piercing needle segments could not prevail because the hold of the individual needles was not sufficiently secured in the plastic body in order to achieve the relatively high p to endure mechanical loads permanently. If there is only a single perforated needle from a carrier body solves, this leads to the immediate failure of the crochet or Raschel machine, which usually has many segments are arranged. To avoid excessive downtime Avoiding needles from falling out is one went over to this again, previously explained punching needle segments with a carrier body made of lead and individually to use perforated needle lamellae fastened in it.

The invention / innovation is based on the task of a Hole needle segment of the type described above

to train that it is reduced in weight and at the same time

a permanently firm bond between the carrier body and the perforated needle 1amel1en is ensured. The segments should also be easy to manufacture and by saving of metallic raw materials be inexpensive.

This object is achieved by the characterizing features of claim 1, advantageous developments of the invention result from the features of the sub | Expectations. %

\ It is regarded as the core of the invention / innovation in Arrange at least one rod-shaped cross connector in the area of the fastening ends of the perforated needle lamellae, which is firmly connected to the fixed ends of the individual amps is and within the support body over the entire Width of the punch needle arrangement essentially right angle lig to the needle! runs longitudinally. Through this transverse connector a firm hold of the needles is achieved with each other and at the same time ensures that through the i Cross strut in the carrier body material, the entire perforated needle assembly cannot detach itself from the carrier body, If the rod-like transverse connector still protrudes beyond the side edge of the piercing needle fixed ends, a form-fitting connection with the carrier body material is established, as it were, and the hold is increased even further. It is particularly advantageous if according to claim 3 of Carrier body made of plastic material, in particular ABS plastic, because then the prepared and Simply inject the set of needles provided with the cross connector into the plastic earpiece or lets pour.

With several cross connectors on both sides in the area of the The fastening end of the perforated needle 1amelien is ensured that the Lochnariel packet prepared for injection does not twist or bend, as a result has that the individual needles lose their equidistance to each other.

The cross connector or connectors are advantageously made made of welding wire and are produced by an electric welding process attached to the back of the needle lamellas. The welding wire is also beneficial in that when it has a certain flexibility that allows the prepared punch needle to be connected after it has been inserted into Corresponding recesses of the injection mold for the production of the carrier body to be readjusted and thus Make sure the punch needle is really aligned is exact. A three-way arrangement of the cross-connector has proven to be particularly advantageous from a static point of view.

A really intimate connection between cross connectors and perforated needle lamellas can be achieved in that the back or side edges of the perforated needle lamellas U-shaped recesses are provided, in which the cross connector designed as a welding wire is inserted. The radius of the U-shaped recesses corresponds approximately to the radius of the welding wire, so that a relative long welded joint.

The invention / innovation is based on an advantageous Embodiment in more detail in the drawing figures explained. These show:

"1 111

Fig. 1 is a plan view of a perforated needle segment., Wherein the carrier body is cut open in the area of the fastening ends of the perforated needle amelles;

Fig. 2 shows a section according to H-II in Fig. 1;

3 shows an enlarged side view of a perforated needle j with three cross connectors to further, behind

Hanging punch needles.

s The punch needle shown in Fig. 1 segment 1 for a

Crocheting and / or Raschel machine consists essentially of a carrier body 2 and a plurality of out \ the end face 3 of the support body 2 protruding

Hole needles 4, which have a flat-rectangular cross-section [Have, are arranged equidistant and parallel to one another and at their free end 5 with a hole 6 for Implementation of a thread section are provided and held with their fastening end 7 in the carrier body are.

In the area of the fastening ends of the needles are rod-like cross connectors 8, 9, 10 arranged with the fixed ends 7 are firmly connected and extend within the carrier body 2 over the entire width 11 of the needle arrangement essentially at right angles to the needle 1 longitudinal direction 12.

The cross connectors 8-10 protrude over the side edge 13 the fastening ends 7 of the needles 4 also raised, as can be clearly seen from FIG. 3.

I I

i ι

I * · «*« III

Il II

The cross-connectors consist of welding wire and have a round cross-section, which is connected via the cross-connectors 8 10 The coupling produced between the individual perforated needles 4 is elastic. As also in Fig. 3 schematically is shown, result between the surface of the transverse connectors 8-10 formed from welding wire Electrofusion joints (these are areas where there is mutual flow of material); to get one as possible To achieve an intimate welded connection, the perforated needle lamellae have 13 U-shaped edges in their side edges Recesses, the diameter of which corresponds approximately to the diameter of the cross connector 8-10 made of welding wire.

As can also be seen from FIGS. 1 and 2, the carrier body has a rectangular cross-section and a fastening hole 16 at its end facing away from the perforated needles 4.

I * II II II «♦ i II * III I

Il < t · ·

i ·
(t (X

REFERENCE LIST

1 Perforated needle segment 9 Cross connector 2 Carrier body 10 Cross connector 3 Face 11th broad 4th Punch needle 12th Longitudinal direction of 4 5 Free end 13th Margin 6th hole 14th Recesses 7th Attachment end 15th Welded joints 8th Cross connector

Claims (1)

at tr ' ι ■ * ■ ■ * ■ lit > 1 I I I 1 11 t · · EXPECTATIONS 1. Hole needle segment for crochet and Raschel machines with: a carrier body, as well as - A plurality of from a side face (end face) of the support body standing needles that an essentially flat-rectangular one Have cross-section, - equidistant and parallel to each other are arranged at its free end with a loci) for Implementation of a thread section are provided, as well - with its fastening end in the carrier body are held by marked by the following features: In the area of the fastening ends (7) of the perforated needles (4) there is at least one rod-shaped ger cross connector (8 - 10) arranged, * · - the one with the fastening ends (7) of the Hole needles (4) is firmly connected and ItIk 111 - 8 - ■ ' arrangement within the carrier body (2) over the entire width (11) of the perforated needle runs essentially at right angles to the longitudinal direction of the needle (12). 2. hole needle segment according to claim 1, characterized, that the rod-shaped cross connector (8 - 10) over the side edge (13) of the fastening ends (7) protrudes raised and rests in an inner recess of the support body (2). 3, piercing needle segment according to claim 1 or 2, characterized, that the carrier body (2) consists of plastic material, in particular ABS plastic. 4. perforated needle segment according to one of the preceding claims, characterized, that several cross connectors (8-10) are arranged on both sides in the area of the fastening ends (7) are. ti me ι it I * i With " rl · I t * 4 «if 14th tttll 9 - 5. Hole needle segment according to one of the preceding Expectations, characterized, that on at least one side of the fastening ends (7) several rod-shaped cross connectors (8, 9) are arranged. 6. perforated needle segment according to one of the preceding claims, characterized by j that on one side of the fastening ends (7) two cross connectors (8 »9) and on the opposite side a cross connector (10) are arranged. 7. hole needle segment according to claim 6, characterized, that the single cross connector (10) of one side between the cross connectors (8, 9) of the Opposite side lies. 8. hole needle segment according to one of the preceding claims, characterized, that the cross connector (s) (8-10) consist of welding wire. ft flit 1 · I i ) Wed - 10 - 9. perforated needle segment according to one of the preceding claims, characterized, that the perforated needles (4) are elastically coupled to one another via the cross connectors (8-10). 1Ö. Hole needle segment according to one of the preceding Expectations, marked by Electric welding connections (15) between the side edges (13) of the fastening ends (7) and the surface of the transverse connectors (8-1O) ₄ 11. punching needle segment according to one of the preceding claims, characterized, that the side edges (13) of the fastening ends (7) are provided with U-shaped recesses (14) the diameter of which corresponds approximately to the diameter of the cross connectors (8-10).