Narrow cranked heald
AssigneeGroz-Beckert KG
InventorJulius Bächtold
Life of this patent
Estimating the term…
Abstract
Healds that consist of a metal ribbon section having the width (B) that is narrower than the total width B+X required for the flat ribbon heald (20). The flat ribbon heald (20) has an essentially non-machined—in any event, not trimmed—edge (9) derived from the metal ribbon section and an edge (10, 11, 12, 13, 14) that has been produced, in the region of the shaft (4) and the transition regions (5, 6), by trimming the metal ribbon section. An outward-directed crank of the shaft (4) creates an enlarged distance (R) between two associate oppositely cranked flat ribbon healds of a heald pair (23) which comprises two oppositely cranked flat ribbon healds (20, 21).
Claims6
Flat ribbon heald with two end eyelets, a shaft extending between the end eyelets, and at least one thread eye provided on the shaft, said flat ribbon heald comprising
- a metal ribbon section having an original width (B) at the end eyelets, said width being unchanged, and having a smaller width (B1) along the shaft, said smaller width being reduced due to the removal of material,
- wherein, between each end eyelet and the shaft, a respective transition section is formed, in which transition section the width is reduced from the greater width (B) of the end eyelets to the smaller width (B1) of the shaft,
- wherein the end eyelets, the transition sections and the shaft are all located in a common plane, and
- wherein each end eyelet has a straight edge that lies on a straight line with the corresponding straight edge of the other end eyelet and which extends to a point at which the transition section or the shaft has an outward bend followed by a further bend causing the shaft to extend in a longitudinal direction of the heald with the thread eye being laterally off set and disposed at or beyond the straight line on which the straight edges of the end eyelets are located.
Method for manufacturing a flat ribbon heald with at least one end eyelet, a shaft extending away from the end eyelet, and at least one thread eye provided on the shaft, said method comprising the following measures:
- providing a metal ribbon section having two outer edges that are parallel to each other, said edges being at a distance from each other that defines the width (B) of the metal ribbon section;
- forming at least one end eyelet at one end of the ribbon section by producing an opening while the width (B) is maintained;
- removing material along the shaft to be produced in order to reduce the width of the shaft and in order to form a transition section between the shaft and the end eyelet while maintaining one straight edge of the original metal ribbon section;
- forming at least one thread eve in the shaft;
- and,
- deforming the transition section created between the end eyelet and the shaft, or deforming the shaft in order to provide the straight edge, thus the shaft, with a lateral offset such that the thread eye is laterally offset and located at or laterally beyond the original location of the straight edge.
Dependencies are inferred from the claim text.