To reduce the loads of the driving motors of a warp-opening device to contribute to a high speed operation of a loom.
Two support shafts 16, 17 extended in parallel to a swinging shaft 9 disposed on the outside of one of side frames 1 are arranged at symmetric places on the swinging central position of a lower end lever portion 13. A plurality of driven gears 18A corresponding to a plurality of alternately selected heald frames 2A are rotatably mounted on the support shaft 16. A plurality of driven gears 18B corresponding to a plurality of non-selected heald frames 2B are rotatably mounted on the support shaft 17. Servomotors 22A, 22C, 22E, 22G for driving the driving gears 18A are dispersed and arranged toward the circumferences of the driven gears 18A. Servomotors 22B, 22D, 22F, 22H for driving the driving gears 18B are dispersed and arranged toward the circumferences of the driven gears 18B.
YOKOYAMA TETSUO