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1. (WO2017032556) DRIVE MECHANISM FOR DRIVING A HEALD FRAME OF A WEAVING MACHINE

Pub. No.:    WO/2017/032556    International Application No.:    PCT/EP2016/068303
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Tue Aug 02 01:59:59 CEST 2016
IPC: D03C 13/00
Applicants: PICANOL
Inventors: SAMPERS, Dirk
NOPPE, Chris
DELBOO, Emmanuel
CAFMEYER, Sven
ADRIAEN, Marc
Title: DRIVE MECHANISM FOR DRIVING A HEALD FRAME OF A WEAVING MACHINE
Abstract:
A drive mechanism for driving a heald frame (1) of a weaving machine, the drive mechanism (2) comprising a crank (3) rotating about a crank axis (4), a coupling rod (5), and a swivel lever(6) having a first arm (8) and a second arm (9), wherein the coupling rod (5) is linked to the first arm(8) of the swivel lever (6) by a second hinged joint (17) adjustable with respect to the first arm (8) of the swivel lever (6),wherein in all intended locations of the second hinged joint (17) with respect to the first arm (8) of the swivel lever (6), the second hinged joint (17) is situated on an arc of an imaginary circle (19) when the swivel lever (6) is in a central position between the upper position and the lower position, wherein the imaginary circle (19) has a radius (R) that is equal to the distance (L) between the first hinged joint (16) and the second hinged joint (17), and the imaginary circle (19) has a center (33) that coincides with the crank axis (4). A method for adjusting a stroke of a heald frame (1) of a weaving machine.