Jacquard machine comprising a bistable element which is used to lift and lower warp threads

Abstract

The jacquard machine for use in a weaving loom with lifters (2) of the lifting and lowering of warp threads (3) of the weaving loom, has a bi-stable element (1) connected to the drive for each lifter and which on both sides is rigidly clamped in a holder (5a,5b) by its end sections (1a,1b), wherein the deformation of the element is achieved by the bringing together of the two end sections. The bi-stable element is formed by an elastically deformable bar or an elastically deformable leaf spring.

Description

technical field [0001] The invention relates to a Jacquard loom according to the preamble of claim 1 , which manages not to use harnesses and, for this purpose, has bistable elements that can be deformed in order to raise or lower the warp threads of the loom. Background technique [0002] A Jacquard machine of a related kind is known, for example, from DE 43 35 620 A1 of the applicant. Here, a flat bar acting as a bistable element is swung by the action of an external force, whereby a corresponding lifting or lowering of the warp thread controlled by the hook is achieved via a hook connected to the flat bar. This Jacquard machine is a development of the traditional Jacquard machine in which the shed forming upstroke and descending movements are usually performed by means of driven blades. Through the hook selection device, certain hooks can be selected according to the fabric pattern to be woven, and these hooks are separated from the driven broach, so they do not particip...

AI Technical Summary

Problems solved by technology

In order to be able to ensure a smooth process in the subsequent operation process, it is necessary to invest a particularly high expenditure in the configuration of the bistable element, which leads to an increase in production costs

Images