Loom gripper drive with apparatus for changing the path of motion of the gripper band
AssigneePicanol N.V.
InventorsHenry Shaw, Patrick Strubbe
Life of this patent
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Abstract
A loom gripper band driving device includes apparatus for changing the path of motion of the gripper band. The drive device includes a band driving wheel connected to a gear that engages a gear segment pivotable about a fixed support shaft and that is connected by a coupling rod to a crank arm that pivots about a fixed crankarm supporting shaft. The coupling rod is connected at its opposite ends to the gear segment and the crankarm, respectively, with the connecting points between the coupling rod, gear segment and crankarm being variable to change the path of motion of the gear segment and the gripper drive relative to the crankarm and in particular the crankarm supporting shaft.
Claims12
A loom gripper-drive (1) including a wheel (2) drivingly connected to a gripper band (3), said wheel (2) being drivingly connected to a movable gear segment (9) supported on a first stationary shaft (8) and connected by a coupling rod (13) to a crankarm (12) supported on a second stationary shaft (11), said coupling rod (13) being connected at respective connection points(24,25), to the gear segment (9) and to the crankarm (12) at respective distances from the first and second stationary shafts (8,11), and means (28,30) for adjusting the circumferential position of the connection point (24) of the coupling rod (13) to the crankarm (12) relative to the second stationary shaft (11).
Dependencies are inferred from the claim text.