| 摘要 |
Control device for the reciprocating movement of the belts carrying the weft thread insertion grippers in shuttleless looms. Each belt is provided with a lengthwise series of slots and with the slots of one series a respective gear wheel (8) is in mesh engagement. An oscillating gear sector (12a, 12b) drives the gear wheel (8). The gear sector (12a, 12b) has along the bisecting line thereof a slotted link coupling (17-20) including a slider (19). The coupling (17-20) provides articulation both with the big end of a connecting rod (18) in a crank mechanism (22,23), whichis driven by a cyclic shaft (23) of the shuttleless loom, and with the pin (17) of a rocker arm (15) following the oscillations of the gear sector (12d). |
