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US 6,405,967 B1Granted
Device for pivoting a creel of a textile machine
AssigneeW. Schlafhorst AG & Co.
InventorsChristian Sturm, Alexander Marx
Life of this patent
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AssigneeW. Schlafhorst AG & Co.
InventorsChristian Sturm, Alexander Marx
Estimating the term…
A device for pivoting a creel of a textile machine, which holds a bobbin in contact with a roller during the winding process. The creel (2) is fastened on a shaft (5) defining a pivot axis. A lifting device (9) connected with the creel (2) has a lever (10) fixed with the shaft (5) against relative rotation. An arresting element (12) seated on the shaft (5) can be alternatingly coupled to the shaft (5) or a fixed holding element (21). When the arresting element (12) is coupled with the shaft (5), potential energy is stored in an energy storage device, which is released when the connection changes from the shaft (5) to the holding element (21), whereby the lever (10) and the shaft (5) are abruptly moved toward the arresting element (12). The device makes it possible to break the contact between the cheese (1) and the drive roller (3) quickly and dependably in case of a power failure. Interference with grasping an upper yarn end, as well as damage to the yarn and yarn positioning errors, can be avoided.
In combination, a textile machine creel for holding a bobbin in driven surface contact with a drive roller during a winding process, the creel comprising a shaft defining a pivot axis about which the creel is selectively moveable relative to the drive roller, and a device for abruptly pivoting the creel out of contact with the drive roller, the pivoting device comprising a lever fixedly connected with the shaft for integral movement therewith, a holding element disposed in a fixed position relative to the shaft, an arresting element extending between the shaft and the holding element for connection alternately with the shaft and the holding element, an energy storage device operative when the arresting element is coupled with the shaft for storing potential energy and operative to release the stored potential energy when the arresting element is coupled with the holding element for abruptly moving the lever to the arresting element for pivoting the shaft.
Dependencies are inferred from the claim text.