Shed forming device and weaving machine provided with such a shed forming device
AssigneeN.V. Michel Van de Wiele
InventorBram Vanderjeugt
Life of this patent
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Abstract
A shed forming device positions warp yarns in order to form a shed in accordance with a pattern to be woven, before inserting a weft through this shed. The positioning of the warp yarns is one potential cause of an increase or a decrease of potential energy in the shed forming device. One or several elements is added to compensate, by their change of state, partly or entirely for the decrease or increase of potential energy which is produced in the shed forming device by the positioning of the warp yarns. The change of state of the elements is effectuated without any coupling with the positioning of individual warn yarns. A weaving machine uses such a shed forming device.
Claims27
Shed forming method, comprising
- providing means to position warp yarns in order to form a shed in accordance with a pattern to be woven before inserting a weft through this shed,
- providing one or several compensating elements,
- directly attaching each of the one or several compensating elements to one or more components of the means to position the warp yarns, other than a warp yarn guiding means,
- compensating for an energy imbalance created by positioning the warp yarns where more warp yarns are going in one vertical direction than in another by applying forces to the one or more components with the one or several compensating elements, the applied forces exerting a net upward influence when the greater number of warp yarns are moving downwards and exerting a net downward influence when the greater number of warp yarns are moving upwards.
Dependencies are inferred from the claim text.