Abstract: In the heald shaft (1) according to the invention, a coupling device (8) is provided which serves for connecting the end binder (4) with the shaft rod (3) and which has a spring-biased clamping member (18) for frictionally holding a coupling element (20) in the shaft rod (3). When required, the clamping member (18) may be moved into its releasing position against the force of the spring element (30) for releasing the coupling element (20), so that the latter may be pulled out of the shaft rod (3) alone, or possibly together with other components of the coupling device (8). Operating such a coupling device is particularly simple and requires neither particular skill nor particular attention. The coupling device (8) is adapted for shaft rods of lightweight construction.

Abstract: An end binder (5) for a heald shaft (1) is formed by a bent sheet metal member (9) which preferably has a U-shaped cross section and which, according to the preferred embodiment, is of high-grade steel. The open side of the U-section faces the shaft rods (2, 3). In the hollow space enclosed by the bent sheet metal member (9) shaft rod couplers (28) are secured which are preferably pivotally held The upper or lower end of the bent sheet metal member forms part of a driving coupler (25) which is situated preferably in a linear continuation of the bent sheet metal member (9) and is a one-piece component with the end binder (5). Such a structure may be is manufactured in a simple manner with very small tolerances, and it has a low weight, a substantial stiffness and highly satisfactory bearing properties for being supported in plastic guides.

Abstract: The heald shaft (1) according to the invention has, for coupling the shaft rods (2) with the end binders (5), connecting joints (10) whose pivot axes (14) lie externally of the shaft rods (2) and preferably inside the end binders (5). By means of the connecting joints (10) a moment-free coupling between the shaft rods (2) and the end binders (5) is ensured. The relative pivotal motions between the shaft rods (2) and the end binders (5) appearing during operation do not generate any moment transmissions between the shaft rods (2) and the end binders (5). According to a preferred embodiment, the driving couplers (7) are arranged above the end binders (5) in a direct extension thereof.

Abstract: A heddle shaft (1) has shaft rods (2, 3), which are embodied as profile bodies (12) having at least one hollow chamber (14). The shaft rods (2, 3) are joined together by lateral bracing posts (4, 5) and at least one center connector (11). For securing the latter, retaining pieces (23) are disposed in the hollow chambers and are accessible through windows (22). The retaining pieces (23) are preferably glued into the hollow chamber (14) and have one or more threaded bores for securing the center connector (11) by means of screws (37).

Abstract: A heald shaft (1) comprises at least one shaft rod (2) on which a damping element (12) is supported to be movable in the longitudinal direction of the heald. By virtue of movably supporting the damping element (12), an alignment of the healds (8) is improved and facilitated, and a desired damping effect is obtained during the entire motion course of the healds (8).

Abstract: A shaft rod (2), wherein the heddle support rail (4) is secured in a form-fit to a profile body (9), for example in the form of an aluminum extruded profile, by projections (18) provided on the extrusion profile (9), with the projections 18 extending into substantially correspondingly shaped recesses (19) in the heddle support rail.

Abstract: A heddle shaft (1) has shaft rods (2, 3), which are embodied as profile bodies (12) having at least one hollow chamber (14). The shaft rods (2, 3) are joined together by lateral bracing posts (4, 5) and at least one center connector (11). For securing the latter, retaining pieces (23) are disposed in the hollow chambers and are accessible through windows (22). The retaining pieces (23) are preferably glued into the hollow chamber (14) and have one or more threaded bores for securing the center connector (11) by means of screws (37).

Abstract: A novel corner connector for heddle shafts has detent means with which it can be retained in a shaft rod. The load-related locking is effected independently of the detent means by a clamping device that acts between the struts of the shaft rod.

Abstract: A shaft rod for a heddle shaft is formed by a profile body (15) and an associated additional profile body, which are joined together by a detent means (25) and additionally by an adhesive bond. The detent means (25) is embodied such that it already holds the additional profile body (19) fixed and in the correct position on the profile body (15) when the adhesive that forms the adhesive seam (33) is still liquid or viscous, or in any case has not yet thoroughly hardened. This provision makes it substantially easier to manipulate the shaft rod (4) during manufacture.

Abstract: The heddle shaft rod (4) described originates in an extruded aluminum profile section with relatively thick side walls, which are removed in some regions and thereby made thinner. This can be done without substantial impairment to the rigidity of the heddle shaft rod, yet as a result a substantial reduction in weight is attained. The removal of material can be adapted to the local load conditions. For instance, it is possible at the ends or other force introduction points to leave unweakened thick walls, while the other regions of the side walls are milled off far enough that a uniform thinner wall thickness is attained. It is furthermore possible to vary the amount of material removed, either in multiple steps or in infinitely graduated fashion. The material removal pertains to a reduction in the wall thickness that is measured transversely to the movement direction of the heddle shaft rod.