Latch needle

Abstract

The invention relates to a latch needle, which is characterized in that a latch slot (9) of the latch needle (1) is fixed with a latch spring (22) at back. The latch needle (1) is provided with spring support grooves (19, 21) capable of being touched at latch back (7) or the suitable structure capable of containing the ends (25, 26) of the latch spring (22), wherein the spring support grooves (19, 21) are sealed toward the latch back (7), at least the ends (25, 26) of the latch spring (22) are connected with fitting shapes or at least held in the spring support grooves (19, 21) for preventing drop. Therefore, the invention can reduce error sensitivity of latch needle in production. The invention can improve the operation, reliability and service life of latch needle.

Description

technical field [0001] The invention relates to a latch needle, in particular a machine knitting needle, having a spring-loaded latch. Background technique [0002] The method of forming loops using a latch needle which simplifies the loop forming process has long been popular. One such latch needle is disclosed in US-PS3453845. The latch needle has a needle bar with a hook at one end thereof, and a tongue groove is formed in front of the hook. One end of the latch for opening or closing the needle hook protrudes into the tongue groove and is pivotally supported therein. The latch can be swung to a closed position, and in this position its latch spoon rests on the hook point. To open the needle hook, the needle latch can be swiveled into a rear position (Rücklage), wherein the needle latch can be swiveled away from the needle hook and rests on or at least close to the needle bar. [0003] Usually, the tongue and groove are continuous, that is to say, they are open toward...

AI Technical Summary

Problems solved by technology

Also, as a result the latch spring may slip and / or may be lost and the needle will no longer work correctly

Images