US 2002/0152774 A1Published application

Latch needle comprising a relieved latch shank

AssigneeGroz-Beckert KG

InventorsManfred Sauter, Karl-Heinz Mattes

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Abstract

The improved latch needle (1) is provided with a latch (5) having a latch shaft (11) with side surfaces (21, 22), which are divided into surface areas (23, 24) that are offset against each other and/or are arranged at an angle to each other. As a result, the thickness of latch (5) measured in the direction of its rotational axis (27) is slightly larger than the thickness in the shaft region (43), particularly at a location (45) in the area of transition from the latch shaft (11) to the latch spoon (16). On the other hand, the location (43)[sic] is close to the hook-side opening of the latch slot (6). By reducing the width, particularly in this region, the easy movement of latch (5) is ensured even if dust or dirt enter the latch slot (6) or are deposited on the side surfaces (21, 22).

Claims10

Dependent claims

A latch needle (1), in particular for knitting machines, said needle comprising

a needle body (2) with a latch slot (6) formed therein, which is delimited by two opposite arranged cheeks or slot side walls (7, 8),
a latch (5) with latch shaft (11) that extends inside the latch slot (6) and has two side surfaces (21, 22) and a latch opening (14) and is positioned so as to pivot with the aid of a bearing device (18) inside the latch slot (6),
characterized in that
at least one of the side surfaces (21, 22) are divided into separate surface areas (23, 24), one of which is located next to the latch opening (14) and the other one extends on the side along the latch shaft (11) and away from the latch opening (14) and
that the distance between the side surfaces (21) at a location (43 and/or 45) that is removed from the bearing device is less than the distance between the regions adjacent to the latch opening (14).

2 more elements

Dependencies are inferred from the claim text.