Groz-beckert Kg

Eric Jürgens

Uwe Stingel

Andreas Dietz

Klaus Kirchmair

Torsten Butz

Eckhard Fehrenbacher

Jörg Sauter

Martin Wörnle

Hans-Jürgen Haug

Johannes Bruske

Wolfgang Schmoll

Stefano Rizzi

Marco Andreoli

Günther Büchle

Frank Durst

Werner Veeser

Jochen Stauss

Jürgen Veeser

Ernst-Viktor Heinemann

Hubert Siber

Eckard Fehrenbacher

Ingo Zimmermann

Kurt Weiss

Kurt Weiß

A loop-forming process includes moving a plurality of system components () relatively to a needle bed (). The system components () contact threads () for forming loops. At least one spacer () is placed between at least two adjacent system components () of the plurality of system components () and defines the distance () between the two adjacent system components (), the spacer () being in mechanical contact to the two adjacent system components (). The spacer () is placed away from and does not contact threads () and is moved with respect to the needle bed (). The spacer () is also moved with respect to both of the two adjacent system components () at least for a period of time during the loop forming process. An equivalent device is also disclosed and claimed.

Loop-forming method and device

A knitting device () comprising a needle bed () and knitting tools (), wherein the needle bed () is designed so as to be without joints and seams in view of the configuration of its channel walls () as well as perpendicularly to the floor () of the channel through the base body () of the needle bed (). The channel depth of the individual guide channels () is preferably less than three times the channel width. Consequently, in particular in the case of extremely fine needle divisions, the resultant channel walls () are robust and stable and can be subjected to a hardening or coating treatment. The reduced overall weight, the smaller friction surfaces, and the sturdier design of the knitting device enable the operation at greater knitting speeds and with greater rotational accelerations, in particular in reciprocating mode, and an overall savings of lubricants and energy.

Knitting system with flattened guide channels

A knitting head () for a circular knitting machine (), with the knitting head comprising the complete main bearing () of the cylinder and being provided, on its lower end, with a standardized interface () for accommodation with a carrier ring () located on the side of the machine frame. The carrier ring () supports the head ring () along the entire circumference of said head ring, preferably by means of a continuous seating surface () extending around the entire circumference.

Knitting head for a knitting machine

A knitting needle designed specifically for achieving particularly fine divisions, or another knitting tool (), has a narrower working section () and a wider support section (), whereby the support section () is provided with a positioning means (), for example, having the form of a slit () or having the form of a rib (). The knitting tool () is associated with a fixing means () in the form of a projection () or a groove () on the side of the bar (). Due to this measure, the support sections () of the knitting tools () may be arranged&#x2014;in close proximity to each other, in contact with or at a minimal distance from each other&#x2014;on the bar (), so that a maximum cross-section is available for configuring the support section (). This provides strong stability for the knitting tools ()&#x2014;even in cases of extremely fine divisions&#x2014;and, at the same time, provides precise alignment and avoids division errors.

Knitting machine tool, in particular for the finest division

To simplify the setup of a bar and associated tools of a knitting machine and to improve the degree of precision regarding fineness and the level of sturdiness of the tools and bar system, the holding parts () of the tools () of the tool set () are configured differently. On the holding parts () of at least one tool type, means () are provided for positioning the tools () on the bar and thus means for defining the division. Separate positioning means for positioning and defining the division may be assigned to the other tools (). Alternatively, they may be positioned by the tools () of the first type, between which they are accommodated. If positioning grooves are provided in the bar or parts thereof, these grooves may be set up for twice the distance of division, which results in robust and mechanically stable solutions with finer divisions.

Tool set and bar for a knitting machine

A knitting tool for a bar () of a knitter comprises a shaft (), which is provided with a plastic body () at least on one side, which extends beyond the side surface () of the shaft. Said plastic body () is in contact with the side surface of the adjacent knitting tool. Thus, both knitting tools concerned are supported at one another.

Knitting tool for a knitting machine

The inventive knitting tools, in particular knitting needles (), have a body () which, for alignment, has on its narrow side projections () which have precisely machined abutment surfaces () on their end faces. The abutment surfaces (), can be produced, for example, during a suitable stage of the manufacturing process. One of the projections () or an additional projection () can be provided with abutment surfaces () which are used for longitudinal positioning of the knitting tool. Corresponding grooves () in the needle bar () are assigned to the projections ().

Knitting needle and bar for said needle

A cutting needle () for knitting machines and similar applications has been provided, said cutting needle having a needle body () on which a knife () is detachably held, preferably by means of a detent device (). Such a cutting needle () reduces the maintenance costs of knitting machines and discloses ways for optimizing needle bodies () and knives () in view of manufacturing technology and materials.

Cutting needle with interchangeable knife

An apparatus according to the invention for producing a knitted fabric with interspacing is embodied in the form of a circular knitting machine with knitting cylinders or with a knitting cylinder and a dial. Between the two needle beds for the needle assemblies defined in this way, a pile thread transfer deviceis arranged, which is preferably provided with two groupsof feed elements that can respectively be moved from an idle position to a thread tucking position. In the process, the feed elements of the one group move toward the needle hooks of the first needle bed and the feed elements of the other group move toward the needle hooks of the other needle bed. In this way, a spaced apart knitted fabric can be produced on circular knitting machines, wherein latch needles can be used and the needle stroke is limited to the standard measure of less than 14 mm. The knitted fabric with interspacing can have a thickness of clearly more than 14 mm, meaning a thickness than far exceeds the needle stroke.

Apparatus for producing a knitted fabric with interspacing

A knitting tool which is suitable for embodying both large and small loops has two needles (), disposed coaxially to one another, whose hooks are oriented identically. The hook of the larger needle () is split in two in the middle and comprises hook halves. The finer needle () can be driven between the two hook halves upon spreading of the two hook halves apart from one another. For selectively closing the hooks, a slide is provided, which can be brought into engagement both with the tip of the fine needle and with the tip of the coarser needle. To raise and lower the slide to the various positions of the hook tips relative to the needle back, a sliding control block may be provided. The sliding control block may be embodied on the coarse needle and the fine needle ().

Knitting tool

The starting point of a new concept in a latch needle () is an attachment of the latch spring () in the sawslot () of the latch needle from the side of the needle back (). For this purpose the latch needle () has spring-supporting pockets () accessible from the needle back () or other structures adapted to receive the ends () of the latch spring (). The spring-supporting pockets () are closed toward the needle back () at least to such an extent that the ends () of the latch spring () are held in a form-locking, or at least in a captive manner in the spring-supporting pockets (). Such a latch needle has a reduced tolerance sensitivity during manufacture. The described needle concept makes possible further improvements which contribute to the operational safety and service life of the latch needle.

Latch needle

A knitting tool (), particular for high-speed knitting machines, has a shank () that is provided with indentations (). For embodying these indentations, the shank () is provided with a slit (), which creates two legs () spaced apart from one another. These legs are bent toward one another so that the desired indentations are created at the flanks (). The indentations serve to reduce friction and to hold oil.

Growing community of inventors

Bisingen, Germany

Eric Jürgens